init

common/cpp/libs/3rd/bin/libmysqlclient_r.so

@@ -0,0 +1 @@
+link libmysqlclient_r.so.16.0.0

common/cpp/libs/3rd/bin/mysql_config

@@ -0,0 +1,205 @@
+#!/bin/sh
+# Copyright (c) 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc.
+# Use is subject to license terms.
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
+
+# This script reports various configuration settings that may be needed
+# when using the MySQL client library.
+
+which ()
+{
+  IFS="${IFS=   }"; save_ifs="$IFS"; IFS=':'
+  for file
+  do
+    for dir in $PATH
+    do
+      if test -f $dir/$file
+      then
+        echo "$dir/$file"
+        continue 2
+      fi
+    done
+    echo "which: no $file in ($PATH)"
+    exit 1
+  done
+  IFS="$save_ifs"
+}
+
+#
+# If we can find the given directory relatively to where mysql_config is
+# we should use this instead of the incompiled one.
+# This is to ensure that this script also works with the binary MySQL
+# version
+
+fix_path ()
+{
+  var=$1
+  shift
+  for filename
+  do
+    path=$basedir/$filename
+    if [ -d "$path" ] ;
+    then
+      eval "$var"=$path
+      return
+    fi
+  done
+}
+
+get_full_path ()
+{
+  file=$1
+
+  # if the file is a symlink, try to resolve it
+  if [ -h $file ];
+  then
+    file=`ls -l $file | awk '{ print $NF }'`
+  fi
+
+  case $file in
+    /*) echo "$file";;
+    */*) tmp=`pwd`/$file; echo $tmp | sed -e 's;/\./;/;' ;;
+    *) which $file ;;
+  esac
+}
+
+me=`get_full_path $0`
+
+basedir=`echo $me | sed -e 's;/bin/mysql_config;;'`
+
+ldata='/var/lib/mysql'
+execdir='/usr/libexec'
+bindir='/usr/bin'
+
+# If installed, search for the compiled in directory first (might be "lib64")
+pkglibdir='/usr/lib64/mysql'
+pkglibdir_rel=`echo $pkglibdir | sed -e "s;^$basedir/;;"`
+fix_path pkglibdir $pkglibdir_rel lib/mysql lib
+
+plugindir='/usr/lib64/mysql/plugin'
+
+pkgincludedir='/usr/include/mysql'
+fix_path pkgincludedir include/mysql include
+
+version='5.1.69'
+socket='/var/lib/mysql/mysql.sock'
+ldflags=' -rdynamic '
+
+if [ 0 -eq 0 ]; then
+  port=0
+else
+  port=3306
+fi
+
+# Create options 
+# We intentionally add a space to the beginning and end of lib strings, simplifies replace later
+libs=" $ldflags -L$pkglibdir -lmysqlclient -lz -lcrypt -lnsl -lm "
+libs="$libs -lssl -lcrypto  "
+libs_r=" $ldflags -L$pkglibdir -lmysqlclient_r -lz -lpthread -lcrypt -lnsl -lm  -lpthread  -lssl -lcrypto "
+embedded_libs=" $ldflags -L$pkglibdir -lmysqld -ldl  -lz -lpthread -lcrypt -lnsl -lm  -lpthread   -lrt -lssl -lcrypto "
+
+if [ -r "$pkglibdir/libmygcc.a" ]; then
+  # When linking against the static library with a different version of GCC
+  # from what was used to compile the library, some symbols may not be defined
+  # automatically.  We package the libmygcc.a from the build host, to provide
+  # definitions for those.  Bugs 4921, 19561, 19817, 21158, etc.
+  libs="$libs -lmygcc "
+  libs_r="$libs_r -lmygcc "
+  embedded_libs="$embedded_libs -lmygcc "
+fi
+
+cflags="-I$pkgincludedir  -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fwrapv -fPIC   -DUNIV_LINUX -DUNIV_LINUX " #note: end space!
+include="-I$pkgincludedir"
+
+# Remove some options that a client doesn't have to care about
+# FIXME until we have a --cxxflags, we need to remove -Xa
+#       and -xstrconst to make --cflags usable for Sun Forte C++
+# FIXME until we have a --cxxflags, we need to remove -AC99
+#       to make --cflags usable for HP C++ (aCC)
+for remove in DDBUG_OFF DSAFEMALLOC USAFEMALLOC DSAFE_MUTEX \
+              DPEDANTIC_SAFEMALLOC DUNIV_MUST_NOT_INLINE DFORCE_INIT_OF_VARS \
+              DEXTRA_DEBUG DHAVE_purify O 'O[0-9]' 'xO[0-9]' 'W[-A-Za-z]*' \
+              'mtune=[-A-Za-z0-9]*' 'mcpu=[-A-Za-z0-9]*' 'march=[-A-Za-z0-9]*' \
+              Xa xstrconst "xc99=none" AC99 \
+              unroll2 ip mp restrict
+do
+  # The first option we might strip will always have a space before it because
+  # we set -I$pkgincludedir as the first option
+  cflags=`echo "$cflags"|sed -e "s/ -$remove  */ /g"` 
+done
+cflags=`echo "$cflags"|sed -e 's/ *\$//'` 
+
+# Same for --libs(_r)
+for remove in lmtmalloc static-libcxa i-static static-intel
+do
+  # We know the strings starts with a space
+  libs=`echo "$libs"|sed -e "s/ -$remove  */ /g"` 
+  libs_r=`echo "$libs_r"|sed -e "s/ -$remove  */ /g"` 
+  embedded_libs=`echo "$embedded_libs"|sed -e "s/ -$remove  */ /g"` 
+done
+
+# Strip trailing and ending space if any, and '+' (FIXME why?)
+libs=`echo "$libs" | sed -e 's;  \+; ;g' | sed -e 's;^ *;;' | sed -e 's; *\$;;'`
+libs_r=`echo "$libs_r" | sed -e 's;  \+; ;g' | sed -e 's;^ *;;' | sed -e 's; *\$;;'`
+embedded_libs=`echo "$embedded_libs" | sed -e 's;  \+; ;g' | sed -e 's;^ *;;' | sed -e 's; *\$;;'`
+
+usage () {
+        cat <<EOF
+Usage: $0 [OPTIONS]
+Options:
+        --cflags         [$cflags]
+        --include        [$include]
+        --libs           [$libs]
+        --libs_r         [$libs_r]
+        --plugindir      [$plugindir]
+        --socket         [$socket]
+        --port           [$port]
+        --version        [$version]
+        --libmysqld-libs [$embedded_libs]
+EOF
+        exit 1
+}
+
+if test $# -le 0; then usage; fi
+
+while test $# -gt 0; do
+        case $1 in
+        --cflags)  echo "$cflags" ;;
+        --include) echo "$include" ;;
+        --libs)    echo "$libs" ;;
+        --libs_r)  echo "$libs_r" ;;
+        --plugindir) echo "$plugindir" ;;
+        --socket)  echo "$socket" ;;
+        --port)    echo "$port" ;;
+        --version) echo "$version" ;;
+        --embedded-libs | --embedded | --libmysqld-libs) echo "$embedded_libs" ;;
+        *)         usage ;;
+        esac
+
+        shift
+done
+
+#echo "ldata: '"$ldata"'"
+#echo "execdir: '"$execdir"'"
+#echo "bindir: '"$bindir"'"
+#echo "pkglibdir: '"$pkglibdir"'"
+#echo "pkgincludedir: '"$pkgincludedir"'"
+#echo "version: '"$version"'"
+#echo "socket: '"$socket"'"
+#echo "port: '"$port"'"
+#echo "ldflags: '"$ldflags"'"
+#echo "client_libs: '"$client_libs"'"
+
+exit 0

common/cpp/libs/3rd/bin/mysqlbug

@@ -0,0 +1,405 @@
+#!/bin/sh
+# Copyright (c) 2000-2002, 2004, 2006, 2007 MySQL AB
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+# Create a bug report and mail it to the mysql mailing list
+# Based on glibc bug reporting script.
+
+echo "Finding system information for a MySQL bug report"
+
+VERSION="5.1.69"
+COMPILATION_COMMENT="Source distribution"
+BUGmysql="mysql@lists.mysql.com"
+# This is set by configure
+COMP_CALL_INFO="CC='gcc'  CFLAGS='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fwrapv -fPIC'  CXX=''  CXXFLAGS='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fwrapv -fPIC -felide-constructors -fno-rtti -fno-exceptions'  LDFLAGS=''  ASFLAGS=''"
+COMP_RUN_INFO="CC='gcc'  CFLAGS=' -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fwrapv -fPIC   -DUNIV_LINUX -DUNIV_LINUX'  CXX='g++'  CXXFLAGS=' -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fwrapv -fPIC -felide-constructors -fno-rtti -fno-exceptions   -fno-implicit-templates -fno-exceptions -fno-rtti'  LDFLAGS=' -rdynamic '  ASFLAGS=''"
+CONFIGURE_LINE="./configure  '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' '--target=x86_64-redhat-linux-gnu' '--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64' '--libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/var/lib' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--with-readline' '--with-ssl=/usr' '--without-debug' '--enable-shared' '--with-embedded-server' '--localstatedir=/var/lib/mysql' '--with-unix-socket-path=/var/lib/mysql/mysql.sock' '--with-mysqld-user=mysql' '--with-extra-charsets=all' '--with-big-tables' '--with-pic' '--with-plugin-innobase' '--with-plugin-innodb_plugin' '--with-plugin-partition' '--enable-local-infile' '--enable-largefile' '--enable-thread-safe-client' '--disable-dependency-tracking' 'build_alias=x86_64-redhat-linux-gnu' 'host_alias=x86_64-redhat-linux-gnu' 'target_alias=x86_64-redhat-linux-gnu' 'CFLAGS=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fwrapv -fPIC' 'CXXFLAGS=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fwrapv -fPIC -felide-constructors -fno-rtti -fno-exceptions'"
+
+LIBC_INFO=""
+for pat in /lib/libc.* /lib/libc-* /usr/lib/libc.* /usr/lib/libc-*
+do
+    TMP=`ls -l $pat 2>/dev/null`
+    if test $? = 0
+    then
+      LIBC_INFO="$LIBC_INFO
+$TMP"
+    fi
+done
+
+PATH=../client:$PATH:/bin:/usr/bin:/usr/local/bin
+export PATH
+
+BUGADDR=${1-$BUGmysql}
+ENVIRONMENT=`uname -a`
+
+: ${USER=${LOGNAME-`whoami`}}
+
+COMMAND=`echo $0|sed 's%.*/\([^/]*\)%\1%'`
+
+# Try to create a secure tmpfile
+umask 077
+TEMPDIR=/tmp/mysqlbug-$$
+mkdir $TEMPDIR || (echo "can not create directory in /tmp, aborting"; exit 1;)
+TEMP=${TEMPDIR}/mysqlbug
+
+trap 'rm -f $TEMP $TEMP.x; rmdir $TEMPDIR; exit 1' 1 2 3 13 15
+trap 'rm -f $TEMP $TEMP.x; rmdir $TEMPDIR' 0
+
+# How to read the passwd database.
+PASSWD="cat /etc/passwd"
+
+if test -f /usr/lib/sendmail
+then
+  MAIL_AGENT="/usr/lib/sendmail -oi -t"
+elif test -f /usr/sbin/sendmail
+then
+  MAIL_AGENT="/usr/sbin/sendmail -oi -t"
+else
+  MAIL_AGENT="rmail $BUGmysql"
+fi
+
+# Figure out how to echo a string without a trailing newline
+N=`echo 'hi there\c'`
+case "$N" in
+  *c)	ECHON1='echo -n' ECHON2= ;;
+  *)	ECHON1=echo ECHON2='\c' ;;
+esac
+
+# Find out the name of the originator of this PR.
+if test -n "$NAME" 
+then
+  ORIGINATOR="$NAME"
+elif test -f $HOME/.fullname
+then
+  ORIGINATOR="`sed -e '1q' $HOME/.fullname`"
+else
+  # Must use temp file due to incompatibilities in quoting behavior
+  # and to protect shell metacharacters in the expansion of $LOGNAME
+  $PASSWD | grep "^$LOGNAME:" | awk -F: '{print $5}' | sed -e 's/,.*//' > $TEMP
+  ORIGINATOR="`cat $TEMP`"
+  rm -f $TEMP
+fi
+
+if test -n "$ORGANIZATION"
+then
+  if test -f "$ORGANIZATION"
+  then
+    ORGANIZATION="`cat $ORGANIZATION`"
+  fi
+else
+  if test -f $HOME/.organization
+  then
+    ORGANIZATION="`cat $HOME/.organization`"
+  elif test -f $HOME/.signature
+  then
+    ORGANIZATION=`sed -e "s/^/  /" $HOME/.signature; echo ">"`
+  fi
+fi
+
+PATH_DIRS=`echo $PATH | sed -e 's/^:/. /' -e 's/:$/ ./' -e 's/::/ . /g' -e 's/:/ /g' `
+
+which_1 ()
+{
+  for cmd
+  do
+    # Absolute path ?. 
+    if expr "x$cmd" : "x/" > /dev/null
+    then
+      echo "$cmd"
+      exit 0
+    else
+      for d in $PATH_DIRS
+      do
+	file="$d/$cmd"
+	if test -x "$file" -a ! -d "$file"
+	then
+	  echo "$file"
+	  exit 0
+	fi
+      done
+    fi
+  done
+  exit 1
+}
+
+change_editor ()
+{
+  echo "You can change editor by setting the environment variable VISUAL."
+  echo "If your shell is a bourne shell (sh) do"
+  echo "VISUAL=your_editors_name; export VISUAL"
+  echo "If your shell is a C shell (csh) do"
+  echo "setenv VISUAL your_editors_name"
+}
+
+# If they don't have a preferred editor set, then use emacs
+if test -z "$VISUAL"
+then
+  if test -z "$EDITOR"
+  then
+    # Honor debian sensible-editor
+    if test -x "/usr/bin/sensible-editor"
+    then
+      EDIT=/usr/bin/sensible-editor
+    else
+      EDIT=emacs
+    fi
+  else
+    EDIT="$EDITOR"
+  fi
+else
+  EDIT="$VISUAL"
+fi
+
+#which_1 $EDIT
+used_editor=`which_1 $EDIT`
+
+echo "test -x $used_editor"
+if test -x "$used_editor"
+then
+  echo "Using editor $used_editor";
+  change_editor
+  sleep 2
+else
+  echo "Could not find a text editor. (tried $EDIT)"
+  change_editor
+  exit 1
+fi
+
+# Find out some information.
+SYSTEM=`( test -f /bin/uname  && /bin/uname -a ) || \
+        ( test -f /usr/bin/uname  && /usr/bin/uname -a ) || echo ""`
+ARCH=`test -f /bin/arch  && /bin/arch`
+MACHINE=`test -f /bin/machine  && /bin/machine`
+FILE_PATHS=
+
+for cmd in perl make gmake gcc cc
+do
+  file=`which_1 $cmd`
+  if test $? = 0
+  then
+    if test $cmd = "gcc"
+    then
+      GCC_INFO=`$file -v 2>&1`
+    elif test $cmd = "perl"
+    then
+      PERL_INFO=`$file -v | grep -i version 2>&1`
+    fi
+    FILE_PATHS="$FILE_PATHS $file"
+  fi
+done
+
+admin=`which_1 mysqladmin`
+MYSQL_SERVER=
+if test -x "$admin"
+then
+  MYSQL_SERVER=`$admin version 2> /dev/null`
+  if test "$?" = "1"
+  then
+    MYSQL_SERVER=""
+  fi
+fi
+
+SUBJECT_C="[50 character or so descriptive subject here (for reference)]"
+ORGANIZATION_C='<organization of PR author (multiple lines)>'
+LICENCE_C='[none | licence | email support | extended email support ]'
+SYNOPSIS_C='<synopsis of the problem (one line)>'
+SEVERITY_C='<[ non-critical | serious | critical ] (one line)>'
+PRIORITY_C='<[ low | medium | high ] (one line)>'
+CLASS_C='<[ sw-bug | doc-bug | change-request | support ] (one line)>'
+RELEASE_C='<release number or tag (one line)>'
+ENVIRONMENT_C='<machine, os, target, libraries (multiple lines)>'
+DESCRIPTION_C='<precise description of the problem (multiple lines)>'
+HOW_TO_REPEAT_C='<code/input/activities to reproduce the problem (multiple lines)>'
+FIX_C='<how to correct or work around the problem, if known (multiple lines)>'
+
+
+cat > $TEMP <<EOF
+SEND-PR: -*- send-pr -*-
+SEND-PR: Lines starting with \`SEND-PR' will be removed automatically, as
+SEND-PR: will all comments (text enclosed in \`<' and \`>').
+SEND-PR:
+From: ${USER}
+To: ${BUGADDR}
+Subject: $SUBJECT_C
+
+>Description:
+	$DESCRIPTION_C
+>How-To-Repeat:
+	$HOW_TO_REPEAT_C
+>Fix:
+	$FIX_C
+
+>Submitter-Id:	<submitter ID>
+>Originator:	${ORIGINATOR}
+>Organization:
+${ORGANIZATION- $ORGANIZATION_C}
+>MySQL support: $LICENCE_C
+>Synopsis:	$SYNOPSIS_C
+>Severity:	$SEVERITY_C
+>Priority:	$PRIORITY_C
+>Category:	mysql
+>Class:		$CLASS_C
+>Release:	mysql-${VERSION} ($COMPILATION_COMMENT)
+`test -n "$MYSQL_SERVER" && echo ">Server: $MYSQL_SERVER"`
+>C compiler:    gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3)
+>C++ compiler:  g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3)
+>Environment:
+	$ENVIRONMENT_C
+`test -n "$SYSTEM"  && echo "System: $SYSTEM"`
+`test -n "$ARCH"  && echo "Architecture: $ARCH"`
+`test -n "$MACHINE"  && echo "Machine: $MACHINE"`
+`test -n "$FILE_PATHS"  && echo "Some paths: $FILE_PATHS"`
+`test -n "$GCC_INFO"  && echo "GCC: $GCC_INFO"`
+`test -n "$COMP_CALL_INFO"  && echo "Compilation info (call): $COMP_CALL_INFO"`
+`test -n "$COMP_RUN_INFO"   && echo "Compilation info (used): $COMP_RUN_INFO"`
+`test -n "$LIBC_INFO"  && echo "LIBC: $LIBC_INFO"`
+`test -n "$CONFIGURE_LINE"  && echo "Configure command: $CONFIGURE_LINE"`
+`test -n "$PERL_INFO"  && echo "Perl: $PERL_INFO"`
+EOF
+
+chmod u+w $TEMP
+cp $TEMP $TEMP.x
+
+eval $EDIT $TEMP
+
+if cmp -s $TEMP $TEMP.x
+then
+  echo "File not changed, no bug report submitted."
+  mv -f $TEMP /tmp/failed-mysql-bugreport
+  echo "The raw bug report exists in /tmp/failed-mysql-bugreport"
+  echo "If you use this remember that the first lines of the report are now a lie.."
+  exit 1
+fi
+
+#
+#       Check the enumeration fields
+
+# This is a "sed-subroutine" with one keyword parameter
+# (with workaround for Sun sed bug)
+#
+SED_CMD='
+/$PATTERN/{
+s|||
+s|<.*>||
+s|^[ 	]*||
+s|[ 	]*$||
+p
+q
+}'
+
+
+while :; do
+  CNT=0
+
+  #
+  # 1) Severity
+  #
+  PATTERN=">Severity:"
+  SEVERITY=`eval sed -n -e "\"$SED_CMD\"" $TEMP`
+  case "$SEVERITY" in
+    ""|non-critical|serious|critical) CNT=`expr $CNT + 1` ;;
+    *)  echo "$COMMAND: \`$SEVERITY' is not a valid value for \`Severity'."
+  esac
+  #
+  # 2) Priority
+  #
+  PATTERN=">Priority:"
+  PRIORITY=`eval sed -n -e "\"$SED_CMD\"" $TEMP`
+  case "$PRIORITY" in
+    ""|low|medium|high) CNT=`expr $CNT + 1` ;;
+    *)  echo "$COMMAND: \`$PRIORITY' is not a valid value for \`Priority'."
+  esac
+  #
+  # 3) Class
+  #
+  PATTERN=">Class:"
+  CLASS=`eval sed -n -e "\"$SED_CMD\"" $TEMP`
+  case "$CLASS" in
+    ""|sw-bug|doc-bug|change-request|support) CNT=`expr $CNT + 1` ;;
+    *)  echo "$COMMAND: \`$CLASS' is not a valid value for \`Class'."
+  esac
+
+  #
+  # 4) Synopsis
+  #
+  VALUE=`grep "^>Synopsis:" $TEMP | sed 's/>Synopsis:[ 	]*//'`
+  case "$VALUE" in
+    "$SYNOPSIS_C")  echo "$COMMAND: \`$VALUE' is not a valid value for \`Synopsis'." ;;
+    *) CNT=`expr $CNT + 1` 
+  esac
+
+  test $CNT -lt 4  &&
+    echo "Errors were found with the problem report."
+
+
+  #       Check if subject of mail was changed, if not, use Synopsis field
+  #
+  subject=`grep "^Subject" $TEMP| sed 's/^Subject:[ 	]*//'`
+  if [ X"$subject" = X"$SUBJECT_C" -o X"$subject" = X"$SYNOPSIS_C" ]; then
+    subject=`grep Synopsis $TEMP | sed 's/>Synopsis:[     ]*//'`
+    sed "s/^Subject:[ 	]*.*/Subject: $subject/" $TEMP > $TEMP.tmp
+    mv -f $TEMP.tmp $TEMP
+  fi
+
+  while :; do
+    $ECHON1 "a)bort, e)dit or s)end? $ECHON2"
+    read input
+    case "$input" in
+      a*)
+	echo "$COMMAND: problem report saved in $HOME/dead.mysqlbug."
+	cat $TEMP >> $HOME/dead.mysqlbug
+        xs=1; exit
+        ;;
+      e*)
+        eval $EDIT $TEMP
+        continue 2
+        ;;
+      s*)
+        break 2
+        ;;
+    esac
+  done
+done
+#
+#       Remove comments and send the problem report
+#       (we have to use patterns, where the comment contains regex chars)
+#
+# /^>Originator:/s;$ORIGINATOR;;
+sed  -e "
+/^SEND-PR:/d
+/^>Organization:/,/^>[A-Za-z-]*:/s;$ORGANIZATION_C;;
+/^>Confidential:/s;<.*>;;
+/^>Synopsis:/s;$SYNOPSIS_C;;
+/^>Severity:/s;<.*>;;
+/^>Priority:/s;<.*>;;
+/^>Class:/s;<.*>;;
+/^>Release:/,/^>[A-Za-z-]*:/s;$RELEASE_C;;
+/^>Environment:/,/^>[A-Za-z-]*:/s;$ENVIRONMENT_C;;
+/^>Description:/,/^>[A-Za-z-]*:/s;$DESCRIPTION_C;;
+/^>How-To-Repeat:/,/^>[A-Za-z-]*:/s;$HOW_TO_REPEAT_C;;
+/^>Fix:/,/^>[A-Za-z-]*:/s;$FIX_C;;
+" $TEMP > $TEMP.x
+
+if $MAIL_AGENT < $TEMP.x
+then
+  echo "$COMMAND: problem report sent"
+  xs=0; exit
+else
+  echo "$COMMAND: mysterious mail failure, report not sent."
+  echo "$COMMAND: problem report saved in $HOME/dead.mysqlbug."
+  cat $TEMP >> $HOME/dead.mysqlbug
+fi
+
+exit 0

common/cpp/libs/3rd/inc/breakpad/client/linux/crash_generation/client_info.h

@@ -0,0 +1,53 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_CRASH_GENERATION_CLIENT_INFO_H_
+#define CLIENT_LINUX_CRASH_GENERATION_CLIENT_INFO_H_
+
+namespace google_breakpad {
+
+class CrashGenerationServer;
+
+class ClientInfo {
+ public:
+  ClientInfo(pid_t pid, CrashGenerationServer* crash_server)
+    : crash_server_(crash_server),
+      pid_(pid) {}
+
+  CrashGenerationServer* crash_server() const { return crash_server_; }
+  pid_t pid() const { return pid_; }
+
+ private:
+  CrashGenerationServer* crash_server_;
+  pid_t pid_;
+};
+
+}
+
+#endif // CLIENT_LINUX_CRASH_GENERATION_CLIENT_INFO_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/crash_generation/crash_generation_client.cc

@@ -0,0 +1,92 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdio.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <algorithm>
+
+#include "client/linux/crash_generation/crash_generation_client.h"
+#include "common/linux/eintr_wrapper.h"
+#include "common/linux/ignore_ret.h"
+#include "common/linux/linux_libc_support.h"
+#include "third_party/lss/linux_syscall_support.h"
+
+namespace google_breakpad {
+
+bool
+CrashGenerationClient::RequestDump(const void* blob, size_t blob_size)
+{
+  int fds[2];
+  sys_socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
+  static const unsigned kControlMsgSize = CMSG_SPACE(sizeof(int));
+
+  struct kernel_msghdr msg;
+  my_memset(&msg, 0, sizeof(struct kernel_msghdr));
+  struct kernel_iovec iov[1];
+  iov[0].iov_base = const_cast<void*>(blob);
+  iov[0].iov_len = blob_size;
+
+  msg.msg_iov = iov;
+  msg.msg_iovlen = sizeof(iov) / sizeof(iov[0]);
+  char cmsg[kControlMsgSize];
+  my_memset(cmsg, 0, kControlMsgSize);
+  msg.msg_control = cmsg;
+  msg.msg_controllen = sizeof(cmsg);
+
+  struct cmsghdr* hdr = CMSG_FIRSTHDR(&msg);
+  hdr->cmsg_level = SOL_SOCKET;
+  hdr->cmsg_type = SCM_RIGHTS;
+  hdr->cmsg_len = CMSG_LEN(sizeof(int));
+  int* p = reinterpret_cast<int*>(CMSG_DATA(hdr));
+  *p = fds[1];
+
+  ssize_t ret = HANDLE_EINTR(sys_sendmsg(server_fd_, &msg, 0));
+  sys_close(fds[1]);
+  if (ret <= 0)
+    return false;
+
+  // wait for an ACK from the server
+  char b;
+  IGNORE_RET(HANDLE_EINTR(sys_read(fds[0], &b, 1)));
+
+  return true;
+}
+
+//static
+CrashGenerationClient*
+CrashGenerationClient::TryCreate(int server_fd)
+{
+  if (0 > server_fd)
+    return NULL;
+  return new CrashGenerationClient(server_fd);
+}
+
+}

common/cpp/libs/3rd/inc/breakpad/client/linux/crash_generation/crash_generation_client.h

@@ -0,0 +1,69 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_
+#define CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_
+
+#include <stddef.h>
+
+namespace google_breakpad {
+
+class CrashGenerationClient {
+public:
+  ~CrashGenerationClient()
+  {
+  }
+
+  // Request the crash server to generate a dump.  |blob| is a hack,
+  // see exception_handler.h and minidump_writer.h
+  //
+  // Return true if the dump was successful; false otherwise.
+  bool RequestDump(const void* blob, size_t blob_size);
+
+  // Return a new CrashGenerationClient if |server_fd| is valid and
+  // connects to a CrashGenerationServer.  Otherwise, return NULL.
+  // The returned CrashGenerationClient* is owned by the caller of
+  // this function.
+  static CrashGenerationClient* TryCreate(int server_fd);
+
+private:
+  CrashGenerationClient(int server_fd) : server_fd_(server_fd)
+  {
+  }
+
+  int server_fd_;
+
+  // prevent copy construction and assignment
+  CrashGenerationClient(const CrashGenerationClient&);
+  CrashGenerationClient& operator=(const CrashGenerationClient&);
+};
+
+} // namespace google_breakpad
+
+#endif // CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/crash_generation/crash_generation_server.cc

@@ -0,0 +1,464 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <assert.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <poll.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <vector>
+
+#include "client/linux/crash_generation/crash_generation_server.h"
+#include "client/linux/crash_generation/client_info.h"
+#include "client/linux/handler/exception_handler.h"
+#include "client/linux/minidump_writer/minidump_writer.h"
+#include "common/linux/eintr_wrapper.h"
+#include "common/linux/guid_creator.h"
+#include "common/linux/safe_readlink.h"
+
+static const char kCommandQuit = 'x';
+
+static bool
+GetInodeForFileDescriptor(ino_t* inode_out, int fd)
+{
+  assert(inode_out);
+
+  struct stat buf;
+  if (fstat(fd, &buf) < 0)
+    return false;
+
+  if (!S_ISSOCK(buf.st_mode))
+    return false;
+
+  *inode_out = buf.st_ino;
+  return true;
+}
+
+// expected prefix of the target of the /proc/self/fd/%d link for a socket
+static const char kSocketLinkPrefix[] = "socket:[";
+
+// Parse a symlink in /proc/pid/fd/$x and return the inode number of the
+// socket.
+//   inode_out: (output) set to the inode number on success
+//   path: e.g. /proc/1234/fd/5 (must be a UNIX domain socket descriptor)
+static bool
+GetInodeForProcPath(ino_t* inode_out, const char* path)
+{
+  assert(inode_out);
+  assert(path);
+
+  char buf[PATH_MAX];
+  if (!google_breakpad::SafeReadLink(path, buf)) {
+    return false;
+  }
+
+  if (0 != memcmp(kSocketLinkPrefix, buf, sizeof(kSocketLinkPrefix) - 1)) {
+    return false;
+  }
+
+  char* endptr;
+  const uint64_t inode_ul =
+      strtoull(buf + sizeof(kSocketLinkPrefix) - 1, &endptr, 10);
+  if (*endptr != ']')
+    return false;
+
+  if (inode_ul == ULLONG_MAX) {
+    return false;
+  }
+
+  *inode_out = inode_ul;
+  return true;
+}
+
+static bool
+FindProcessHoldingSocket(pid_t* pid_out, ino_t socket_inode)
+{
+  assert(pid_out);
+  bool already_found = false;
+
+  DIR* proc = opendir("/proc");
+  if (!proc) {
+    return false;
+  }
+
+  std::vector<pid_t> pids;
+
+  struct dirent* dent;
+  while ((dent = readdir(proc))) {
+    char* endptr;
+    const unsigned long int pid_ul = strtoul(dent->d_name, &endptr, 10);
+    if (pid_ul == ULONG_MAX || '\0' != *endptr)
+      continue;
+    pids.push_back(pid_ul);
+  }
+  closedir(proc);
+
+  for (std::vector<pid_t>::const_iterator
+       i = pids.begin(); i != pids.end(); ++i) {
+    const pid_t current_pid = *i;
+    char buf[PATH_MAX];
+    snprintf(buf, sizeof(buf), "/proc/%d/fd", current_pid);
+    DIR* fd = opendir(buf);
+    if (!fd)
+      continue;
+
+    while ((dent = readdir(fd))) {
+      if (snprintf(buf, sizeof(buf), "/proc/%d/fd/%s", current_pid,
+                   dent->d_name) >= static_cast<int>(sizeof(buf))) {
+        continue;
+      }
+
+      ino_t fd_inode;
+      if (GetInodeForProcPath(&fd_inode, buf)
+          && fd_inode == socket_inode) {
+        if (already_found) {
+          closedir(fd);
+          return false;
+        }
+
+        already_found = true;
+        *pid_out = current_pid;
+        break;
+      }
+    }
+
+    closedir(fd);
+  }
+
+  return already_found;
+}
+
+namespace google_breakpad {
+
+CrashGenerationServer::CrashGenerationServer(
+  const int listen_fd,
+  OnClientDumpRequestCallback dump_callback,
+  void* dump_context,
+  OnClientExitingCallback exit_callback,
+  void* exit_context,
+  bool generate_dumps,
+  const string* dump_path) :
+    server_fd_(listen_fd),
+    dump_callback_(dump_callback),
+    dump_context_(dump_context),
+    exit_callback_(exit_callback),
+    exit_context_(exit_context),
+    generate_dumps_(generate_dumps),
+    started_(false)
+{
+  if (dump_path)
+    dump_dir_ = *dump_path;
+  else
+    dump_dir_ = "/tmp";
+}
+
+CrashGenerationServer::~CrashGenerationServer()
+{
+  if (started_)
+    Stop();
+}
+
+bool
+CrashGenerationServer::Start()
+{
+  if (started_ || 0 > server_fd_)
+    return false;
+
+  int control_pipe[2];
+  if (pipe(control_pipe))
+    return false;
+
+  if (fcntl(control_pipe[0], F_SETFD, FD_CLOEXEC))
+    return false;
+  if (fcntl(control_pipe[1], F_SETFD, FD_CLOEXEC))
+    return false;
+
+  if (fcntl(control_pipe[0], F_SETFL, O_NONBLOCK))
+    return false;
+
+  control_pipe_in_ = control_pipe[0];
+  control_pipe_out_ = control_pipe[1];
+
+  if (pthread_create(&thread_, NULL,
+                     ThreadMain, reinterpret_cast<void*>(this)))
+    return false;
+
+  started_ = true;
+  return true;
+}
+
+void
+CrashGenerationServer::Stop()
+{
+  assert(pthread_self() != thread_);
+
+  if (!started_)
+    return;
+
+  HANDLE_EINTR(write(control_pipe_out_, &kCommandQuit, 1));
+
+  void* dummy;
+  pthread_join(thread_, &dummy);
+
+  started_ = false;
+}
+
+//static
+bool
+CrashGenerationServer::CreateReportChannel(int* server_fd, int* client_fd)
+{
+  int fds[2];
+
+  if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, fds))
+    return false;
+
+  static const int on = 1;
+  // Enable passcred on the server end of the socket
+  if (setsockopt(fds[1], SOL_SOCKET, SO_PASSCRED, &on, sizeof(on)))
+    return false;
+
+  if (fcntl(fds[1], F_SETFL, O_NONBLOCK))
+    return false;
+  if (fcntl(fds[1], F_SETFD, FD_CLOEXEC))
+    return false;
+
+  *client_fd = fds[0];
+  *server_fd = fds[1];
+  return true;
+}
+
+// The following methods/functions execute on the server thread
+
+void
+CrashGenerationServer::Run()
+{
+  struct pollfd pollfds[2];
+  memset(&pollfds, 0, sizeof(pollfds));
+
+  pollfds[0].fd = server_fd_;
+  pollfds[0].events = POLLIN;
+
+  pollfds[1].fd = control_pipe_in_;
+  pollfds[1].events = POLLIN;
+
+  while (true) {
+    // infinite timeout
+    int nevents = poll(pollfds, sizeof(pollfds)/sizeof(pollfds[0]), -1);
+    if (-1 == nevents) {
+      if (EINTR == errno) {
+        continue;
+      } else {
+        return;
+      }
+    }
+
+    if (pollfds[0].revents && !ClientEvent(pollfds[0].revents))
+      return;
+
+    if (pollfds[1].revents && !ControlEvent(pollfds[1].revents))
+      return;
+  }
+}
+
+bool
+CrashGenerationServer::ClientEvent(short revents)
+{
+  if (POLLHUP & revents)
+    return false;
+  assert(POLLIN & revents);
+
+  // A process has crashed and has signaled us by writing a datagram
+  // to the death signal socket. The datagram contains the crash context needed
+  // for writing the minidump as well as a file descriptor and a credentials
+  // block so that they can't lie about their pid.
+
+  // The length of the control message:
+  static const unsigned kControlMsgSize =
+      CMSG_SPACE(sizeof(int)) + CMSG_SPACE(sizeof(struct ucred));
+  // The length of the regular payload:
+  static const unsigned kCrashContextSize =
+      sizeof(google_breakpad::ExceptionHandler::CrashContext);
+
+  struct msghdr msg = {0};
+  struct iovec iov[1];
+  char crash_context[kCrashContextSize];
+  char control[kControlMsgSize];
+  const ssize_t expected_msg_size = sizeof(crash_context);
+
+  iov[0].iov_base = crash_context;
+  iov[0].iov_len = sizeof(crash_context);
+  msg.msg_iov = iov;
+  msg.msg_iovlen = sizeof(iov)/sizeof(iov[0]);
+  msg.msg_control = control;
+  msg.msg_controllen = kControlMsgSize;
+
+  const ssize_t msg_size = HANDLE_EINTR(recvmsg(server_fd_, &msg, 0));
+  if (msg_size != expected_msg_size)
+    return true;
+
+  if (msg.msg_controllen != kControlMsgSize ||
+      msg.msg_flags & ~MSG_TRUNC)
+    return true;
+
+  // Walk the control payload and extract the file descriptor and validated pid.
+  pid_t crashing_pid = -1;
+  int signal_fd = -1;
+  for (struct cmsghdr *hdr = CMSG_FIRSTHDR(&msg); hdr;
+       hdr = CMSG_NXTHDR(&msg, hdr)) {
+    if (hdr->cmsg_level != SOL_SOCKET)
+      continue;
+    if (hdr->cmsg_type == SCM_RIGHTS) {
+      const unsigned len = hdr->cmsg_len -
+          (((uint8_t*)CMSG_DATA(hdr)) - (uint8_t*)hdr);
+      assert(len % sizeof(int) == 0u);
+      const unsigned num_fds = len / sizeof(int);
+      if (num_fds > 1 || num_fds == 0) {
+        // A nasty process could try and send us too many descriptors and
+        // force a leak.
+        for (unsigned i = 0; i < num_fds; ++i)
+          close(reinterpret_cast<int*>(CMSG_DATA(hdr))[i]);
+        return true;
+      } else {
+        signal_fd = reinterpret_cast<int*>(CMSG_DATA(hdr))[0];
+      }
+    } else if (hdr->cmsg_type == SCM_CREDENTIALS) {
+      const struct ucred *cred =
+          reinterpret_cast<struct ucred*>(CMSG_DATA(hdr));
+      crashing_pid = cred->pid;
+    }
+  }
+
+  if (crashing_pid == -1 || signal_fd == -1) {
+    if (signal_fd)
+      close(signal_fd);
+    return true;
+  }
+
+  // Kernel bug workaround (broken in 2.6.30 at least):
+  // The kernel doesn't translate PIDs in SCM_CREDENTIALS across PID
+  // namespaces. Thus |crashing_pid| might be garbage from our point of view.
+  // In the future we can remove this workaround, but we have to wait a couple
+  // of years to be sure that it's worked its way out into the world.
+
+  ino_t inode_number;
+  if (!GetInodeForFileDescriptor(&inode_number, signal_fd)) {
+    close(signal_fd);
+    return true;
+  }
+
+  if (!FindProcessHoldingSocket(&crashing_pid, inode_number - 1)) {
+    close(signal_fd);
+    return true;
+  }
+
+  string minidump_filename;
+  if (!MakeMinidumpFilename(minidump_filename))
+    return true;
+
+  if (!google_breakpad::WriteMinidump(minidump_filename.c_str(),
+                                      crashing_pid, crash_context,
+                                      kCrashContextSize)) {
+    close(signal_fd);
+    return true;
+  }
+
+  if (dump_callback_) {
+    ClientInfo info(crashing_pid, this);
+
+    dump_callback_(dump_context_, &info, &minidump_filename);
+  }
+
+  // Send the done signal to the process: it can exit now.
+  memset(&msg, 0, sizeof(msg));
+  struct iovec done_iov;
+  done_iov.iov_base = const_cast<char*>("\x42");
+  done_iov.iov_len = 1;
+  msg.msg_iov = &done_iov;
+  msg.msg_iovlen = 1;
+
+  HANDLE_EINTR(sendmsg(signal_fd, &msg, MSG_DONTWAIT | MSG_NOSIGNAL));
+  close(signal_fd);
+
+  return true;
+}
+
+bool
+CrashGenerationServer::ControlEvent(short revents)
+{
+  if (POLLHUP & revents)
+    return false;
+  assert(POLLIN & revents);
+
+  char command;
+  if (read(control_pipe_in_, &command, 1))
+    return false;
+
+  switch (command) {
+  case kCommandQuit:
+    return false;
+  default:
+    assert(0);
+  }
+
+  return true;
+}
+
+bool
+CrashGenerationServer::MakeMinidumpFilename(string& outFilename)
+{
+  GUID guid;
+  char guidString[kGUIDStringLength+1];
+
+  if (!(CreateGUID(&guid)
+        && GUIDToString(&guid, guidString, sizeof(guidString))))
+    return false;
+
+  char path[PATH_MAX];
+  snprintf(path, sizeof(path), "%s/%s.dmp", dump_dir_.c_str(), guidString);
+
+  outFilename = path;
+  return true;
+}
+
+// static
+void*
+CrashGenerationServer::ThreadMain(void *arg)
+{
+  reinterpret_cast<CrashGenerationServer*>(arg)->Run();
+  return NULL;
+}
+
+}  // namespace google_breakpad

common/cpp/libs/3rd/inc/breakpad/client/linux/crash_generation/crash_generation_server.h

@@ -0,0 +1,135 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_
+#define CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_
+
+#include <pthread.h>
+
+#include <string>
+
+#include "common/using_std_string.h"
+
+namespace google_breakpad {
+
+class ClientInfo;
+
+class CrashGenerationServer {
+public:
+  // WARNING: callbacks may be invoked on a different thread
+  // than that which creates the CrashGenerationServer.  They must
+  // be thread safe.
+  typedef void (*OnClientDumpRequestCallback)(void* context,
+                                              const ClientInfo* client_info,
+                                              const string* file_path);
+
+  typedef void (*OnClientExitingCallback)(void* context,
+                                          const ClientInfo* client_info);
+
+  // Create an instance with the given parameters.
+  //
+  // Parameter listen_fd: The server fd created by CreateReportChannel().
+  // Parameter dump_callback: Callback for a client crash dump request.
+  // Parameter dump_context: Context for client crash dump request callback.
+  // Parameter exit_callback: Callback for client process exit.
+  // Parameter exit_context: Context for client exit callback.
+  // Parameter generate_dumps: Whether to automatically generate dumps.
+  //     Client code of this class might want to generate dumps explicitly
+  //     in the crash dump request callback. In that case, false can be
+  //     passed for this parameter.
+  // Parameter dump_path: Path for generating dumps; required only if true is
+  //     passed for generateDumps parameter; NULL can be passed otherwise.
+  CrashGenerationServer(const int listen_fd,
+                        OnClientDumpRequestCallback dump_callback,
+                        void* dump_context,
+                        OnClientExitingCallback exit_callback,
+                        void* exit_context,
+                        bool generate_dumps,
+                        const string* dump_path);
+
+  ~CrashGenerationServer();
+
+  // Perform initialization steps needed to start listening to clients.
+  //
+  // Return true if initialization is successful; false otherwise.
+  bool Start();
+
+  // Stop the server.
+  void Stop();
+
+  // Create a "channel" that can be used by clients to report crashes
+  // to a CrashGenerationServer.  |*server_fd| should be passed to
+  // this class's constructor, and |*client_fd| should be passed to
+  // the ExceptionHandler constructor in the client process.
+  static bool CreateReportChannel(int* server_fd, int* client_fd);
+
+private:
+  // Run the server's event loop
+  void Run();
+
+  // Invoked when an child process (client) event occurs
+  // Returning true => "keep running", false => "exit loop"
+  bool ClientEvent(short revents);
+
+  // Invoked when the controlling thread (main) event occurs
+  // Returning true => "keep running", false => "exit loop"
+  bool ControlEvent(short revents);
+
+  // Return a unique filename at which a minidump can be written
+  bool MakeMinidumpFilename(string& outFilename);
+
+  // Trampoline to |Run()|
+  static void* ThreadMain(void* arg);
+
+  int server_fd_;
+
+  OnClientDumpRequestCallback dump_callback_;
+  void* dump_context_;
+
+  OnClientExitingCallback exit_callback_;
+  void* exit_context_;
+
+  bool generate_dumps_;
+
+  string dump_dir_;
+
+  bool started_;
+
+  pthread_t thread_;
+  int control_pipe_in_;
+  int control_pipe_out_;
+
+  // disable these
+  CrashGenerationServer(const CrashGenerationServer&);
+  CrashGenerationServer& operator=(const CrashGenerationServer&);
+};
+
+} // namespace google_breakpad
+
+#endif // CLIENT_LINUX_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/data/linux-gate-amd.sym

@@ -0,0 +1,3 @@
+MODULE Linux x86 B8CFDE93002D54DA1900A40AA1BD67690 linux-gate.so
+PUBLIC 400 0 __kernel_vsyscall
+STACK WIN 4 400 100 1 1 0 0 0 0 0 1

common/cpp/libs/3rd/inc/breakpad/client/linux/data/linux-gate-intel.sym

@@ -0,0 +1,3 @@
+MODULE Linux x86 4FBDA58B5A1DF5A379E3CF19A235EA090 linux-gate.so
+PUBLIC 400 0 __kernel_vsyscall
+STACK WIN 4 400 200 3 3 0 0 0 0 0 1

common/cpp/libs/3rd/inc/breakpad/client/linux/handler/exception_handler.cc

@@ -0,0 +1,697 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// The ExceptionHandler object installs signal handlers for a number of
+// signals. We rely on the signal handler running on the thread which crashed
+// in order to identify it. This is true of the synchronous signals (SEGV etc),
+// but not true of ABRT. Thus, if you send ABRT to yourself in a program which
+// uses ExceptionHandler, you need to use tgkill to direct it to the current
+// thread.
+//
+// The signal flow looks like this:
+//
+//   SignalHandler (uses a global stack of ExceptionHandler objects to find
+//        |         one to handle the signal. If the first rejects it, try
+//        |         the second etc...)
+//        V
+//   HandleSignal ----------------------------| (clones a new process which
+//        |                                   |  shares an address space with
+//   (wait for cloned                         |  the crashed process. This
+//     process)                               |  allows us to ptrace the crashed
+//        |                                   |  process)
+//        V                                   V
+//   (set signal handler to             ThreadEntry (static function to bounce
+//    SIG_DFL and rethrow,                    |      back into the object)
+//    killing the crashed                     |
+//    process)                                V
+//                                          DoDump  (writes minidump)
+//                                            |
+//                                            V
+//                                         sys_exit
+//
+
+// This code is a little fragmented. Different functions of the ExceptionHandler
+// class run in a number of different contexts. Some of them run in a normal
+// context and are easy to code, others run in a compromised context and the
+// restrictions at the top of minidump_writer.cc apply: no libc and use the
+// alternative malloc. Each function should have comment above it detailing the
+// context which it runs in.
+
+#include "client/linux/handler/exception_handler.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/limits.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include <sys/syscall.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include <sys/signal.h>
+#include <sys/ucontext.h>
+#include <sys/user.h>
+#include <ucontext.h>
+
+#include <algorithm>
+#include <utility>
+#include <vector>
+
+#include "common/basictypes.h"
+#include "common/linux/linux_libc_support.h"
+#include "common/memory.h"
+#include "client/linux/log/log.h"
+#include "client/linux/minidump_writer/linux_dumper.h"
+#include "client/linux/minidump_writer/minidump_writer.h"
+#include "common/linux/eintr_wrapper.h"
+#include "third_party/lss/linux_syscall_support.h"
+
+#if defined(__ANDROID__)
+#include "linux/sched.h"
+#endif
+
+#ifndef PR_SET_PTRACER
+#define PR_SET_PTRACER 0x59616d61
+#endif
+
+// A wrapper for the tgkill syscall: send a signal to a specific thread.
+static int tgkill(pid_t tgid, pid_t tid, int sig) {
+  return syscall(__NR_tgkill, tgid, tid, sig);
+  return 0;
+}
+
+namespace google_breakpad {
+
+namespace {
+// The list of signals which we consider to be crashes. The default action for
+// all these signals must be Core (see man 7 signal) because we rethrow the
+// signal after handling it and expect that it'll be fatal.
+const int kExceptionSignals[] = {
+  SIGSEGV, SIGABRT, SIGFPE, SIGILL, SIGBUS
+};
+const int kNumHandledSignals =
+    sizeof(kExceptionSignals) / sizeof(kExceptionSignals[0]);
+struct sigaction old_handlers[kNumHandledSignals];
+bool handlers_installed = false;
+
+// InstallAlternateStackLocked will store the newly installed stack in new_stack
+// and (if it exists) the previously installed stack in old_stack.
+stack_t old_stack;
+stack_t new_stack;
+bool stack_installed = false;
+
+// Create an alternative stack to run the signal handlers on. This is done since
+// the signal might have been caused by a stack overflow.
+// Runs before crashing: normal context.
+void InstallAlternateStackLocked() {
+  if (stack_installed)
+    return;
+
+  memset(&old_stack, 0, sizeof(old_stack));
+  memset(&new_stack, 0, sizeof(new_stack));
+
+  // SIGSTKSZ may be too small to prevent the signal handlers from overrunning
+  // the alternative stack. Ensure that the size of the alternative stack is
+  // large enough.
+  static const unsigned kSigStackSize = std::max(8192, SIGSTKSZ);
+
+  // Only set an alternative stack if there isn't already one, or if the current
+  // one is too small.
+  if (sys_sigaltstack(NULL, &old_stack) == -1 || !old_stack.ss_sp ||
+      old_stack.ss_size < kSigStackSize) {
+    new_stack.ss_sp = malloc(kSigStackSize);
+    new_stack.ss_size = kSigStackSize;
+
+    if (sys_sigaltstack(&new_stack, NULL) == -1) {
+      free(new_stack.ss_sp);
+      return;
+    }
+    stack_installed = true;
+  }
+}
+
+// Runs before crashing: normal context.
+void RestoreAlternateStackLocked() {
+  if (!stack_installed)
+    return;
+
+  stack_t current_stack;
+  if (sys_sigaltstack(NULL, &current_stack) == -1)
+    return;
+
+  // Only restore the old_stack if the current alternative stack is the one
+  // installed by the call to InstallAlternateStackLocked.
+  if (current_stack.ss_sp == new_stack.ss_sp) {
+    if (old_stack.ss_sp) {
+      if (sys_sigaltstack(&old_stack, NULL) == -1)
+        return;
+    } else {
+      stack_t disable_stack;
+      disable_stack.ss_flags = SS_DISABLE;
+      if (sys_sigaltstack(&disable_stack, NULL) == -1)
+        return;
+    }
+  }
+
+  free(new_stack.ss_sp);
+  stack_installed = false;
+}
+
+}  // namespace
+
+// We can stack multiple exception handlers. In that case, this is the global
+// which holds the stack.
+std::vector<ExceptionHandler*>* ExceptionHandler::handler_stack_ = NULL;
+pthread_mutex_t ExceptionHandler::handler_stack_mutex_ =
+    PTHREAD_MUTEX_INITIALIZER;
+
+// Runs before crashing: normal context.
+ExceptionHandler::ExceptionHandler(const MinidumpDescriptor& descriptor,
+                                   FilterCallback filter,
+                                   MinidumpCallback callback,
+                                   void* callback_context,
+                                   bool install_handler,
+                                   const int server_fd)
+    : filter_(filter),
+      callback_(callback),
+      callback_context_(callback_context),
+      minidump_descriptor_(descriptor),
+      crash_handler_(NULL) {
+  if (server_fd >= 0)
+    crash_generation_client_.reset(CrashGenerationClient::TryCreate(server_fd));
+
+  if (!IsOutOfProcess() && !minidump_descriptor_.IsFD())
+    minidump_descriptor_.UpdatePath();
+
+  pthread_mutex_lock(&handler_stack_mutex_);
+  if (!handler_stack_)
+    handler_stack_ = new std::vector<ExceptionHandler*>;
+  if (install_handler) {
+    InstallAlternateStackLocked();
+    InstallHandlersLocked();
+  }
+  handler_stack_->push_back(this);
+  pthread_mutex_unlock(&handler_stack_mutex_);
+}
+
+// Runs before crashing: normal context.
+ExceptionHandler::~ExceptionHandler() {
+  pthread_mutex_lock(&handler_stack_mutex_);
+  std::vector<ExceptionHandler*>::iterator handler =
+      std::find(handler_stack_->begin(), handler_stack_->end(), this);
+  handler_stack_->erase(handler);
+  if (handler_stack_->empty()) {
+    RestoreAlternateStackLocked();
+    RestoreHandlersLocked();
+  }
+  pthread_mutex_unlock(&handler_stack_mutex_);
+}
+
+// Runs before crashing: normal context.
+// static
+bool ExceptionHandler::InstallHandlersLocked() {
+  if (handlers_installed)
+    return false;
+
+  // Fail if unable to store all the old handlers.
+  for (int i = 0; i < kNumHandledSignals; ++i) {
+    if (sigaction(kExceptionSignals[i], NULL, &old_handlers[i]) == -1)
+      return false;
+  }
+
+  struct sigaction sa;
+  memset(&sa, 0, sizeof(sa));
+  sigemptyset(&sa.sa_mask);
+
+  // Mask all exception signals when we're handling one of them.
+  for (int i = 0; i < kNumHandledSignals; ++i)
+    sigaddset(&sa.sa_mask, kExceptionSignals[i]);
+
+  sa.sa_sigaction = SignalHandler;
+  sa.sa_flags = SA_ONSTACK | SA_SIGINFO;
+
+  for (int i = 0; i < kNumHandledSignals; ++i) {
+    if (sigaction(kExceptionSignals[i], &sa, NULL) == -1) {
+      // At this point it is impractical to back out changes, and so failure to
+      // install a signal is intentionally ignored.
+    }
+  }
+  handlers_installed = true;
+  return true;
+}
+
+// This function runs in a compromised context: see the top of the file.
+// Runs on the crashing thread.
+// static
+void ExceptionHandler::RestoreHandlersLocked() {
+  if (!handlers_installed)
+    return;
+
+  for (int i = 0; i < kNumHandledSignals; ++i) {
+    if (sigaction(kExceptionSignals[i], &old_handlers[i], NULL) == -1) {
+      signal(kExceptionSignals[i], SIG_DFL);
+    }
+  }
+  handlers_installed = false;
+}
+
+// void ExceptionHandler::set_crash_handler(HandlerCallback callback) {
+//   crash_handler_ = callback;
+// }
+
+// This function runs in a compromised context: see the top of the file.
+// Runs on the crashing thread.
+// static
+void ExceptionHandler::SignalHandler(int sig, siginfo_t* info, void* uc) {
+  // All the exception signals are blocked at this point.
+  pthread_mutex_lock(&handler_stack_mutex_);
+
+  // Sometimes, Breakpad runs inside a process where some other buggy code
+  // saves and restores signal handlers temporarily with 'signal'
+  // instead of 'sigaction'. This loses the SA_SIGINFO flag associated
+  // with this function. As a consequence, the values of 'info' and 'uc'
+  // become totally bogus, generally inducing a crash.
+  //
+  // The following code tries to detect this case. When it does, it
+  // resets the signal handlers with sigaction + SA_SIGINFO and returns.
+  // This forces the signal to be thrown again, but this time the kernel
+  // will call the function with the right arguments.
+  struct sigaction cur_handler;
+  if (sigaction(sig, NULL, &cur_handler) == 0 &&
+      (cur_handler.sa_flags & SA_SIGINFO) == 0) {
+    // Reset signal handler with the right flags.
+    sigemptyset(&cur_handler.sa_mask);
+    sigaddset(&cur_handler.sa_mask, sig);
+
+    cur_handler.sa_sigaction = SignalHandler;
+    cur_handler.sa_flags = SA_ONSTACK | SA_SIGINFO;
+
+    if (sigaction(sig, &cur_handler, NULL) == -1) {
+      // When resetting the handler fails, try to reset the
+      // default one to avoid an infinite loop here.
+      signal(sig, SIG_DFL);
+    }
+    pthread_mutex_unlock(&handler_stack_mutex_);
+    return;
+  }
+
+  bool handled = false;
+  for (int i = handler_stack_->size() - 1; !handled && i >= 0; --i) {
+    handled = (*handler_stack_)[i]->HandleSignal(sig, info, uc);
+  }
+
+  // Upon returning from this signal handler, sig will become unmasked and then
+  // it will be retriggered. If one of the ExceptionHandlers handled it
+  // successfully, restore the default handler. Otherwise, restore the
+  // previously installed handler. Then, when the signal is retriggered, it will
+  // be delivered to the appropriate handler.
+  if (handled) {
+    signal(sig, SIG_DFL);
+  } else {
+    RestoreHandlersLocked();
+  }
+
+  pthread_mutex_unlock(&handler_stack_mutex_);
+
+  if (info->si_pid || sig == SIGABRT) {
+    // This signal was triggered by somebody sending us the signal with kill().
+    // In order to retrigger it, we have to queue a new signal by calling
+    // kill() ourselves.  The special case (si_pid == 0 && sig == SIGABRT) is
+    // due to the kernel sending a SIGABRT from a user request via SysRQ.
+    if (tgkill(getpid(), syscall(__NR_gettid), sig) < 0) {
+      // If we failed to kill ourselves (e.g. because a sandbox disallows us
+      // to do so), we instead resort to terminating our process. This will
+      // result in an incorrect exit code.
+      _exit(1);
+    }
+  } else {
+    // This was a synchronous signal triggered by a hard fault (e.g. SIGSEGV).
+    // No need to reissue the signal. It will automatically trigger again,
+    // when we return from the signal handler.
+  }
+}
+
+struct ThreadArgument {
+  pid_t pid;  // the crashing process
+  const MinidumpDescriptor* minidump_descriptor;
+  ExceptionHandler* handler;
+  const void* context;  // a CrashContext structure
+  size_t context_size;
+};
+
+// This is the entry function for the cloned process. We are in a compromised
+// context here: see the top of the file.
+// static
+int ExceptionHandler::ThreadEntry(void *arg) {
+  const ThreadArgument *thread_arg = reinterpret_cast<ThreadArgument*>(arg);
+
+  // Block here until the crashing process unblocks us when
+  // we're allowed to use ptrace
+  thread_arg->handler->WaitForContinueSignal();
+
+  return thread_arg->handler->DoDump(thread_arg->pid, thread_arg->context,
+                                     thread_arg->context_size) == false;
+}
+
+// This function runs in a compromised context: see the top of the file.
+// Runs on the crashing thread.
+bool ExceptionHandler::HandleSignal(int sig, siginfo_t* info, void* uc) {
+  if (filter_ && !filter_(callback_context_))
+    return false;
+
+  // Allow ourselves to be dumped if the signal is trusted.
+  bool signal_trusted = info->si_code > 0;
+  bool signal_pid_trusted = info->si_code == SI_USER ||
+      info->si_code == SI_TKILL;
+  if (signal_trusted || (signal_pid_trusted && info->si_pid == getpid())) {
+    sys_prctl(PR_SET_DUMPABLE, 1, 0, 0, 0);
+  }
+  CrashContext context;
+  memcpy(&context.siginfo, info, sizeof(siginfo_t));
+  memcpy(&context.context, uc, sizeof(struct ucontext));
+#if !defined(__ARM_EABI__) && !defined(__mips__)
+  // FP state is not part of user ABI on ARM Linux.
+  // In case of MIPS Linux FP state is already part of struct ucontext
+  // and 'float_state' is not a member of CrashContext.
+  struct ucontext *uc_ptr = (struct ucontext*)uc;
+  if (uc_ptr->uc_mcontext.fpregs) {
+    memcpy(&context.float_state,
+           uc_ptr->uc_mcontext.fpregs,
+           sizeof(context.float_state));
+  }
+#endif
+  context.tid = syscall(__NR_gettid);
+  if (crash_handler_ != NULL) {
+    if (crash_handler_(&context, sizeof(context), callback_context_)) {
+      return true;
+    }
+  }
+  return GenerateDump(&context);
+}
+
+// This is a public interface to HandleSignal that allows the client to
+// generate a crash dump. This function may run in a compromised context.
+bool ExceptionHandler::SimulateSignalDelivery(int sig) {
+  siginfo_t siginfo = {};
+  // Mimic a trusted signal to allow tracing the process (see
+  // ExceptionHandler::HandleSignal().
+  siginfo.si_code = SI_USER;
+  siginfo.si_pid = getpid();
+  struct ucontext context;
+  getcontext(&context);
+  return HandleSignal(sig, &siginfo, &context);
+}
+
+// This function may run in a compromised context: see the top of the file.
+bool ExceptionHandler::GenerateDump(CrashContext *context) {
+  if (IsOutOfProcess())
+    return crash_generation_client_->RequestDump(context, sizeof(*context));
+
+  // Allocating too much stack isn't a problem, and better to err on the side
+  // of caution than smash it into random locations.
+  static const unsigned kChildStackSize = 16000;
+  PageAllocator allocator;
+  uint8_t* stack = (uint8_t*) allocator.Alloc(kChildStackSize);
+  if (!stack)
+    return false;
+  // clone() needs the top-most address. (scrub just to be safe)
+  stack += kChildStackSize;
+  my_memset(stack - 16, 0, 16);
+
+  ThreadArgument thread_arg;
+  thread_arg.handler = this;
+  thread_arg.minidump_descriptor = &minidump_descriptor_;
+  thread_arg.pid = getpid();
+  thread_arg.context = context;
+  thread_arg.context_size = sizeof(*context);
+
+  // We need to explicitly enable ptrace of parent processes on some
+  // kernels, but we need to know the PID of the cloned process before we
+  // can do this. Create a pipe here which we can use to block the
+  // cloned process after creating it, until we have explicitly enabled ptrace
+  if(sys_pipe(fdes) == -1) {
+    // Creating the pipe failed. We'll log an error but carry on anyway,
+    // as we'll probably still get a useful crash report. All that will happen
+    // is the write() and read() calls will fail with EBADF
+    static const char no_pipe_msg[] = "ExceptionHandler::GenerateDump \
+                                       sys_pipe failed:";
+    logger::write(no_pipe_msg, sizeof(no_pipe_msg) - 1);
+    logger::write(strerror(errno), strlen(strerror(errno)));
+    logger::write("\n", 1);
+  }
+
+  const pid_t child = sys_clone(
+      ThreadEntry, stack, CLONE_FILES | CLONE_FS | CLONE_UNTRACED,
+      &thread_arg, NULL, NULL, NULL);
+
+  int r, status;
+  // Allow the child to ptrace us
+  sys_prctl(PR_SET_PTRACER, child, 0, 0, 0);
+  SendContinueSignalToChild();
+  do {
+    r = sys_waitpid(child, &status, __WALL);
+  } while (r == -1 && errno == EINTR);
+
+  sys_close(fdes[0]);
+  sys_close(fdes[1]);
+
+  if (r == -1) {
+    static const char msg[] = "ExceptionHandler::GenerateDump waitpid failed:";
+    logger::write(msg, sizeof(msg) - 1);
+    logger::write(strerror(errno), strlen(strerror(errno)));
+    logger::write("\n", 1);
+  }
+
+  bool success = r != -1 && WIFEXITED(status) && WEXITSTATUS(status) == 0;
+  if (callback_)
+    success = callback_(minidump_descriptor_, callback_context_, success);
+  return success;
+}
+
+// This function runs in a compromised context: see the top of the file.
+void ExceptionHandler::SendContinueSignalToChild() {
+  static const char okToContinueMessage = 'a';
+  int r;
+  r = HANDLE_EINTR(sys_write(fdes[1], &okToContinueMessage, sizeof(char)));
+  if(r == -1) {
+    static const char msg[] = "ExceptionHandler::SendContinueSignalToChild \
+                               sys_write failed:";
+    logger::write(msg, sizeof(msg) - 1);
+    logger::write(strerror(errno), strlen(strerror(errno)));
+    logger::write("\n", 1);
+  }
+}
+
+// This function runs in a compromised context: see the top of the file.
+// Runs on the cloned process.
+void ExceptionHandler::WaitForContinueSignal() {
+  int r;
+  char receivedMessage;
+  r = HANDLE_EINTR(sys_read(fdes[0], &receivedMessage, sizeof(char)));
+  if(r == -1) {
+    static const char msg[] = "ExceptionHandler::WaitForContinueSignal \
+                               sys_read failed:";
+    logger::write(msg, sizeof(msg) - 1);
+    logger::write(strerror(errno), strlen(strerror(errno)));
+    logger::write("\n", 1);
+  }
+}
+
+// This function runs in a compromised context: see the top of the file.
+// Runs on the cloned process.
+bool ExceptionHandler::DoDump(pid_t crashing_process, const void* context,
+                              size_t context_size) {
+  if (minidump_descriptor_.IsFD()) {
+    return google_breakpad::WriteMinidump(minidump_descriptor_.fd(),
+                                          minidump_descriptor_.size_limit(),
+                                          crashing_process,
+                                          context,
+                                          context_size,
+                                          mapping_list_,
+                                          app_memory_list_);
+  }
+  return google_breakpad::WriteMinidump(minidump_descriptor_.path(),
+                                        minidump_descriptor_.size_limit(),
+                                        crashing_process,
+                                        context,
+                                        context_size,
+                                        mapping_list_,
+                                        app_memory_list_);
+}
+
+// static
+bool ExceptionHandler::WriteMinidump(const string& dump_path,
+                                     MinidumpCallback callback,
+                                     void* callback_context) {
+  MinidumpDescriptor descriptor(dump_path);
+  ExceptionHandler eh(descriptor, NULL, callback, callback_context, false, -1);
+  return eh.WriteMinidump();
+}
+
+// In order to making using EBP to calculate the desired value for ESP
+// a valid operation, ensure that this function is compiled with a
+// frame pointer using the following attribute. This attribute
+// is supported on GCC but not on clang.
+#if defined(__i386__) && defined(__GNUC__) && !defined(__clang__)
+__attribute__((optimize("no-omit-frame-pointer")))
+#endif
+bool ExceptionHandler::WriteMinidump() {
+  if (!IsOutOfProcess() && !minidump_descriptor_.IsFD()) {
+    // Update the path of the minidump so that this can be called multiple times
+    // and new files are created for each minidump.  This is done before the
+    // generation happens, as clients may want to access the MinidumpDescriptor
+    // after this call to find the exact path to the minidump file.
+    minidump_descriptor_.UpdatePath();
+  } else if (minidump_descriptor_.IsFD()) {
+    // Reposition the FD to its beginning and resize it to get rid of the
+    // previous minidump info.
+    lseek(minidump_descriptor_.fd(), 0, SEEK_SET);
+    ignore_result(ftruncate(minidump_descriptor_.fd(), 0));
+  }
+
+  // Allow this process to be dumped.
+  sys_prctl(PR_SET_DUMPABLE, 1, 0, 0, 0);
+
+  CrashContext context;
+  int getcontext_result = getcontext(&context.context);
+  if (getcontext_result)
+    return false;
+
+#if defined(__i386__)
+  // In CPUFillFromUContext in minidumpwriter.cc the stack pointer is retrieved
+  // from REG_UESP instead of from REG_ESP. REG_UESP is the user stack pointer
+  // and it only makes sense when running in kernel mode with a different stack
+  // pointer. When WriteMiniDump is called during normal processing REG_UESP is
+  // zero which leads to bad minidump files.
+  if (!context.context.uc_mcontext.gregs[REG_UESP]) {
+    // If REG_UESP is set to REG_ESP then that includes the stack space for the
+    // CrashContext object in this function, which is about 128 KB. Since the
+    // Linux dumper only records 32 KB of stack this would mean that nothing
+    // useful would be recorded. A better option is to set REG_UESP to REG_EBP,
+    // perhaps with a small negative offset in case there is any code that
+    // objects to them being equal.
+    context.context.uc_mcontext.gregs[REG_UESP] =
+      context.context.uc_mcontext.gregs[REG_EBP] - 16;
+    // The stack saving is based off of REG_ESP so it must be set to match the
+    // new REG_UESP.
+    context.context.uc_mcontext.gregs[REG_ESP] =
+      context.context.uc_mcontext.gregs[REG_UESP];
+  }
+#endif
+
+#if !defined(__ARM_EABI__) && !defined(__mips__)
+  // FPU state is not part of ARM EABI ucontext_t.
+  memcpy(&context.float_state, context.context.uc_mcontext.fpregs,
+         sizeof(context.float_state));
+#endif
+  context.tid = sys_gettid();
+
+  // Add an exception stream to the minidump for better reporting.
+  memset(&context.siginfo, 0, sizeof(context.siginfo));
+  context.siginfo.si_signo = MD_EXCEPTION_CODE_LIN_DUMP_REQUESTED;
+#if defined(__i386__)
+  context.siginfo.si_addr =
+      reinterpret_cast<void*>(context.context.uc_mcontext.gregs[REG_EIP]);
+#elif defined(__x86_64__)
+  context.siginfo.si_addr =
+      reinterpret_cast<void*>(context.context.uc_mcontext.gregs[REG_RIP]);
+#elif defined(__arm__)
+  context.siginfo.si_addr =
+      reinterpret_cast<void*>(context.context.uc_mcontext.arm_pc);
+#elif defined(__mips__)
+  context.siginfo.si_addr =
+      reinterpret_cast<void*>(context.context.uc_mcontext.pc);
+#else
+#error "This code has not been ported to your platform yet."
+#endif
+
+  return GenerateDump(&context);
+}
+
+void ExceptionHandler::AddMappingInfo(const string& name,
+                                      const uint8_t identifier[sizeof(MDGUID)],
+                                      uintptr_t start_address,
+                                      size_t mapping_size,
+                                      size_t file_offset) {
+  MappingInfo info;
+  info.start_addr = start_address;
+  info.size = mapping_size;
+  info.offset = file_offset;
+  strncpy(info.name, name.c_str(), sizeof(info.name) - 1);
+  info.name[sizeof(info.name) - 1] = '\0';
+
+  MappingEntry mapping;
+  mapping.first = info;
+  memcpy(mapping.second, identifier, sizeof(MDGUID));
+  mapping_list_.push_back(mapping);
+}
+
+void ExceptionHandler::RegisterAppMemory(void* ptr, size_t length) {
+  AppMemoryList::iterator iter =
+    std::find(app_memory_list_.begin(), app_memory_list_.end(), ptr);
+  if (iter != app_memory_list_.end()) {
+    // Don't allow registering the same pointer twice.
+    return;
+  }
+
+  AppMemory app_memory;
+  app_memory.ptr = ptr;
+  app_memory.length = length;
+  app_memory_list_.push_back(app_memory);
+}
+
+void ExceptionHandler::UnregisterAppMemory(void* ptr) {
+  AppMemoryList::iterator iter =
+    std::find(app_memory_list_.begin(), app_memory_list_.end(), ptr);
+  if (iter != app_memory_list_.end()) {
+    app_memory_list_.erase(iter);
+  }
+}
+
+// static
+bool ExceptionHandler::WriteMinidumpForChild(pid_t child,
+                                             pid_t child_blamed_thread,
+                                             const string& dump_path,
+                                             MinidumpCallback callback,
+                                             void* callback_context) {
+  // This function is not run in a compromised context.
+  MinidumpDescriptor descriptor(dump_path);
+  descriptor.UpdatePath();
+  if (!google_breakpad::WriteMinidump(descriptor.path(),
+                                      child,
+                                      child_blamed_thread))
+      return false;
+
+  return callback ? callback(descriptor, callback_context, true) : true;
+}
+
+}  // namespace google_breakpad

common/cpp/libs/3rd/inc/breakpad/client/linux/handler/exception_handler.h

@@ -0,0 +1,275 @@
+// Copyright (c) 2010 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_HANDLER_EXCEPTION_HANDLER_H_
+#define CLIENT_LINUX_HANDLER_EXCEPTION_HANDLER_H_
+
+#include <string>
+#include <vector>
+
+#include <pthread.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <sys/ucontext.h>
+
+#include "client/linux/crash_generation/crash_generation_client.h"
+#include "client/linux/handler/minidump_descriptor.h"
+#include "client/linux/minidump_writer/minidump_writer.h"
+#include "common/scoped_ptr.h"
+#include "common/using_std_string.h"
+#include "google_breakpad/common/minidump_format.h"
+
+namespace google_breakpad {
+
+// ExceptionHandler
+//
+// ExceptionHandler can write a minidump file when an exception occurs,
+// or when WriteMinidump() is called explicitly by your program.
+//
+// To have the exception handler write minidumps when an uncaught exception
+// (crash) occurs, you should create an instance early in the execution
+// of your program, and keep it around for the entire time you want to
+// have crash handling active (typically, until shutdown).
+// (NOTE): There should be only be one this kind of exception handler
+// object per process.
+//
+// If you want to write minidumps without installing the exception handler,
+// you can create an ExceptionHandler with install_handler set to false,
+// then call WriteMinidump.  You can also use this technique if you want to
+// use different minidump callbacks for different call sites.
+//
+// In either case, a callback function is called when a minidump is written,
+// which receives the full path or file descriptor of the minidump.  The
+// caller can collect and write additional application state to that minidump,
+// and launch an external crash-reporting application.
+//
+// Caller should try to make the callbacks as crash-friendly as possible,
+// it should avoid use heap memory allocation as much as possible.
+
+class ExceptionHandler {
+ public:
+  // A callback function to run before Breakpad performs any substantial
+  // processing of an exception.  A FilterCallback is called before writing
+  // a minidump.  |context| is the parameter supplied by the user as
+  // callback_context when the handler was created.
+  //
+  // If a FilterCallback returns true, Breakpad will continue processing,
+  // attempting to write a minidump.  If a FilterCallback returns false,
+  // Breakpad  will immediately report the exception as unhandled without
+  // writing a minidump, allowing another handler the opportunity to handle it.
+  typedef bool (*FilterCallback)(void *context);
+
+  // A callback function to run after the minidump has been written.
+  // |descriptor| contains the file descriptor or file path containing the
+  // minidump. |context| is the parameter supplied by the user as
+  // callback_context when the handler was created.  |succeeded| indicates
+  // whether a minidump file was successfully written.
+  //
+  // If an exception occurred and the callback returns true, Breakpad will
+  // treat the exception as fully-handled, suppressing any other handlers from
+  // being notified of the exception.  If the callback returns false, Breakpad
+  // will treat the exception as unhandled, and allow another handler to handle
+  // it. If there are no other handlers, Breakpad will report the exception to
+  // the system as unhandled, allowing a debugger or native crash dialog the
+  // opportunity to handle the exception.  Most callback implementations
+  // should normally return the value of |succeeded|, or when they wish to
+  // not report an exception of handled, false.  Callbacks will rarely want to
+  // return true directly (unless |succeeded| is true).
+  typedef bool (*MinidumpCallback)(const MinidumpDescriptor& descriptor,
+                                   void* context,
+                                   bool succeeded);
+
+  // In certain cases, a user may wish to handle the generation of the minidump
+  // themselves. In this case, they can install a handler callback which is
+  // called when a crash has occurred. If this function returns true, no other
+  // processing of occurs and the process will shortly be crashed. If this
+  // returns false, the normal processing continues.
+  typedef bool (*HandlerCallback)(const void* crash_context,
+                                  size_t crash_context_size,
+                                  void* context);
+
+  // Creates a new ExceptionHandler instance to handle writing minidumps.
+  // Before writing a minidump, the optional |filter| callback will be called.
+  // Its return value determines whether or not Breakpad should write a
+  // minidump.  The minidump content will be written to the file path or file
+  // descriptor from |descriptor|, and the optional |callback| is called after
+  // writing the dump file, as described above.
+  // If install_handler is true, then a minidump will be written whenever
+  // an unhandled exception occurs.  If it is false, minidumps will only
+  // be written when WriteMinidump is called.
+  // If |server_fd| is valid, the minidump is generated out-of-process.  If it
+  // is -1, in-process generation will always be used.
+  ExceptionHandler(const MinidumpDescriptor& descriptor,
+                   FilterCallback filter,
+                   MinidumpCallback callback,
+                   void *callback_context,
+                   bool install_handler,
+                   const int server_fd);
+  ~ExceptionHandler();
+
+  const MinidumpDescriptor& minidump_descriptor() const {
+    return minidump_descriptor_;
+  }
+
+  void set_minidump_descriptor(const MinidumpDescriptor& descriptor) {
+    minidump_descriptor_ = descriptor;
+  }
+
+  void set_crash_handler(HandlerCallback callback) {
+    crash_handler_ = callback;
+  }
+
+  // Writes a minidump immediately.  This can be used to capture the execution
+  // state independently of a crash.
+  // Returns true on success.
+  // If the ExceptionHandler has been created with a path, a new file is
+  // generated for each minidump.  The file path can be retrieved in the
+  // MinidumpDescriptor passed to the MinidumpCallback or by accessing the
+  // MinidumpDescriptor directly from the ExceptionHandler (with
+  // minidump_descriptor()).
+  // If the ExceptionHandler has been created with a file descriptor, the file
+  // descriptor is repositioned to its beginning and the previous generated
+  // minidump is overwritten.
+  // Note that this method is not supposed to be called from a compromised
+  // context as it uses the heap.
+  bool WriteMinidump();
+
+  // Convenience form of WriteMinidump which does not require an
+  // ExceptionHandler instance.
+  static bool WriteMinidump(const string& dump_path,
+                            MinidumpCallback callback,
+                            void* callback_context);
+
+  // Write a minidump of |child| immediately.  This can be used to
+  // capture the execution state of |child| independently of a crash.
+  // Pass a meaningful |child_blamed_thread| to make that thread in
+  // the child process the one from which a crash signature is
+  // extracted.
+  //
+  // WARNING: the return of this function *must* happen before
+  // the code that will eventually reap |child| executes.
+  // Otherwise there's a pernicious race condition in which |child|
+  // exits, is reaped, another process created with its pid, then that
+  // new process dumped.
+  static bool WriteMinidumpForChild(pid_t child,
+                                    pid_t child_blamed_thread,
+                                    const string& dump_path,
+                                    MinidumpCallback callback,
+                                    void* callback_context);
+
+  // This structure is passed to minidump_writer.h:WriteMinidump via an opaque
+  // blob. It shouldn't be needed in any user code.
+  struct CrashContext {
+    siginfo_t siginfo;
+    pid_t tid;  // the crashing thread.
+    struct ucontext context;
+#if !defined(__ARM_EABI__) && !defined(__mips__)
+    // #ifdef this out because FP state is not part of user ABI for Linux ARM.
+    // In case of MIPS Linux FP state is already part of struct ucontext
+    // so 'float_state' is not required.
+    struct _libc_fpstate float_state;
+#endif
+  };
+
+  // Returns whether out-of-process dump generation is used or not.
+  bool IsOutOfProcess() const {
+      return crash_generation_client_.get() != NULL;
+  }
+
+  // Add information about a memory mapping. This can be used if
+  // a custom library loader is used that maps things in a way
+  // that the linux dumper can't handle by reading the maps file.
+  void AddMappingInfo(const string& name,
+                      const uint8_t identifier[sizeof(MDGUID)],
+                      uintptr_t start_address,
+                      size_t mapping_size,
+                      size_t file_offset);
+
+  // Register a block of memory of length bytes starting at address ptr
+  // to be copied to the minidump when a crash happens.
+  void RegisterAppMemory(void* ptr, size_t length);
+
+  // Unregister a block of memory that was registered with RegisterAppMemory.
+  void UnregisterAppMemory(void* ptr);
+
+  // Force signal handling for the specified signal.
+  bool SimulateSignalDelivery(int sig);
+ private:
+  // Save the old signal handlers and install new ones.
+  static bool InstallHandlersLocked();
+  // Restore the old signal handlers.
+  static void RestoreHandlersLocked();
+
+  void PreresolveSymbols();
+  bool GenerateDump(CrashContext *context);
+  void SendContinueSignalToChild();
+  void WaitForContinueSignal();
+
+  static void SignalHandler(int sig, siginfo_t* info, void* uc);
+  bool HandleSignal(int sig, siginfo_t* info, void* uc);
+  static int ThreadEntry(void* arg);
+  bool DoDump(pid_t crashing_process, const void* context,
+              size_t context_size);
+
+  const FilterCallback filter_;
+  const MinidumpCallback callback_;
+  void* const callback_context_;
+
+  scoped_ptr<CrashGenerationClient> crash_generation_client_;
+
+  MinidumpDescriptor minidump_descriptor_;
+
+  HandlerCallback crash_handler_;
+
+  // The global exception handler stack. This is need becuase there may exist
+  // multiple ExceptionHandler instances in a process. Each will have itself
+  // registered in this stack.
+  static std::vector<ExceptionHandler*> *handler_stack_;
+  static pthread_mutex_t handler_stack_mutex_;
+
+  // We need to explicitly enable ptrace of parent processes on some
+  // kernels, but we need to know the PID of the cloned process before we
+  // can do this. We create a pipe which we can use to block the
+  // cloned process after creating it, until we have explicitly enabled 
+  // ptrace. This is used to store the file descriptors for the pipe
+  int fdes[2];
+
+  // Callers can add extra info about mappings for cases where the
+  // dumper code cannot extract enough information from /proc/<pid>/maps.
+  MappingList mapping_list_;
+
+  // Callers can request additional memory regions to be included in
+  // the dump.
+  AppMemoryList app_memory_list_;
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_HANDLER_EXCEPTION_HANDLER_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/handler/microdump_extra_info.h

@@ -0,0 +1,52 @@
+// Copyright 2015 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_HANDLER_MICRODUMP_EXTRA_INFO_H_
+#define CLIENT_LINUX_HANDLER_MICRODUMP_EXTRA_INFO_H_
+
+namespace google_breakpad {
+
+struct MicrodumpExtraInfo {
+  // Strings pointed to by this struct are not copied, and are
+  // expected to remain valid for the lifetime of the process.
+  const char* build_fingerprint;
+  const char* product_info;
+  const char* gpu_fingerprint;
+  const char* process_type;
+
+  MicrodumpExtraInfo()
+      : build_fingerprint(NULL),
+        product_info(NULL),
+        gpu_fingerprint(NULL),
+        process_type(NULL) {}
+};
+
+}
+
+#endif  // CLIENT_LINUX_HANDLER_MICRODUMP_EXTRA_INFO_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/handler/minidump_descriptor.cc

@@ -0,0 +1,79 @@
+// Copyright (c) 2012 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdio.h>
+
+#include "client/linux/handler/minidump_descriptor.h"
+
+#include "common/linux/guid_creator.h"
+
+namespace google_breakpad {
+
+MinidumpDescriptor::MinidumpDescriptor(const MinidumpDescriptor& descriptor)
+    : fd_(descriptor.fd_),
+      directory_(descriptor.directory_),
+      c_path_(NULL),
+      size_limit_(descriptor.size_limit_) {
+  // The copy constructor is not allowed to be called on a MinidumpDescriptor
+  // with a valid path_, as getting its c_path_ would require the heap which
+  // can cause problems in compromised environments.
+  assert(descriptor.path_.empty());
+}
+
+MinidumpDescriptor& MinidumpDescriptor::operator=(
+    const MinidumpDescriptor& descriptor) {
+  assert(descriptor.path_.empty());
+
+  fd_ = descriptor.fd_;
+  directory_ = descriptor.directory_;
+  path_.clear();
+  if (c_path_) {
+    // This descriptor already had a path set, so generate a new one.
+    c_path_ = NULL;
+    UpdatePath();
+  }
+  size_limit_ = descriptor.size_limit_;
+  return *this;
+}
+
+void MinidumpDescriptor::UpdatePath() {
+  assert(fd_ == -1 && !directory_.empty());
+
+  GUID guid;
+  char guid_str[kGUIDStringLength + 1];
+  if (!CreateGUID(&guid) || !GUIDToString(&guid, guid_str, sizeof(guid_str))) {
+    assert(false);
+  }
+
+  path_.clear();
+  path_ = directory_ + "/" + guid_str + ".dmp";  
+  c_path_ = path_.c_str();
+}
+
+}  // namespace google_breakpad

common/cpp/libs/3rd/inc/breakpad/client/linux/handler/minidump_descriptor.h

@@ -0,0 +1,100 @@
+// Copyright (c) 2012 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_HANDLER_MINIDUMP_DESCRIPTOR_H_
+#define CLIENT_LINUX_HANDLER_MINIDUMP_DESCRIPTOR_H_
+
+#include <assert.h>
+#include <sys/types.h>
+
+#include <string>
+
+#include "common/using_std_string.h"
+
+// The MinidumpDescriptor describes how to access a minidump: it can contain
+// either a file descriptor or a path.
+// Note that when using files, it is created with the path to a directory.
+// The actual path where the minidump is generated is created by this class.
+namespace google_breakpad {
+
+class MinidumpDescriptor {
+ public:
+  MinidumpDescriptor() : fd_(-1), size_limit_(-1) {}
+
+  explicit MinidumpDescriptor(const string& directory)
+      : fd_(-1),
+        directory_(directory),
+        c_path_(NULL),
+        size_limit_(-1) {
+    assert(!directory.empty());
+  }
+
+  explicit MinidumpDescriptor(int fd)
+      : fd_(fd),
+        c_path_(NULL),
+        size_limit_(-1) {
+    assert(fd != -1);
+  }
+
+  explicit MinidumpDescriptor(const MinidumpDescriptor& descriptor);
+  MinidumpDescriptor& operator=(const MinidumpDescriptor& descriptor);
+
+  bool IsFD() const { return fd_ != -1; }
+
+  int fd() const { return fd_; }
+
+  string directory() const { return directory_; }
+
+  const char* path() const { return c_path_; }
+
+  // Updates the path so it is unique.
+  // Should be called from a normal context: this methods uses the heap.
+  void UpdatePath();
+
+  off_t size_limit() const { return size_limit_; }
+  void set_size_limit(off_t limit) { size_limit_ = limit; }
+
+ private:
+  // The file descriptor where the minidump is generated.
+  int fd_;
+
+  // The directory where the minidump should be generated.
+  string directory_;
+  // The full path to the generated minidump.
+  string path_;
+  // The C string of |path_|. Precomputed so it can be access from a compromised
+  // context.
+  const char* c_path_;
+
+  off_t size_limit_;
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_HANDLER_MINIDUMP_DESCRIPTOR_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/log/log.cc

@@ -0,0 +1,48 @@
+// Copyright (c) 2012 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "client/linux/log/log.h"
+
+#if defined(__ANDROID__)
+#include <android/log.h>
+#else
+#include "third_party/lss/linux_syscall_support.h"
+#endif
+
+namespace logger {
+
+int write(const char* buf, size_t nbytes) {
+#if defined(__ANDROID__)
+  return __android_log_write(ANDROID_LOG_WARN, "google-breakpad", buf);
+#else
+  return sys_write(2, buf, nbytes);
+#endif
+}
+
+}  // namespace logger

common/cpp/libs/3rd/inc/breakpad/client/linux/log/log.h

@@ -0,0 +1,41 @@
+// Copyright (c) 2012, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_LOG_LOG_H_
+#define CLIENT_LINUX_LOG_LOG_H_
+
+#include <stddef.h>
+
+namespace logger {
+
+int write(const char* buf, size_t nbytes);
+
+}  // namespace logger
+
+#endif  // CLIENT_LINUX_LOG_LOG_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/minidump_writer/cpu_set.h

@@ -0,0 +1,144 @@
+// Copyright (c) 2013, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_MINIDUMP_WRITER_CPU_SET_H_
+#define CLIENT_LINUX_MINIDUMP_WRITER_CPU_SET_H_
+
+#include <stdint.h>
+#include <assert.h>
+#include <string.h>
+
+#include "common/linux/linux_libc_support.h"
+#include "third_party/lss/linux_syscall_support.h"
+
+namespace google_breakpad {
+
+// Helper class used to model a set of CPUs, as read from sysfs
+// files like /sys/devices/system/cpu/present
+// See See http://www.kernel.org/doc/Documentation/cputopology.txt
+class CpuSet {
+public:
+  // The maximum number of supported CPUs.
+  static const size_t kMaxCpus = 1024;
+
+  CpuSet() {
+    my_memset(mask_, 0, sizeof(mask_));
+  }
+
+  // Parse a sysfs file to extract the corresponding CPU set.
+  bool ParseSysFile(int fd) {
+    char buffer[512];
+    int ret = sys_read(fd, buffer, sizeof(buffer)-1);
+    if (ret < 0)
+      return false;
+
+    buffer[ret] = '\0';
+
+    // Expected format: comma-separated list of items, where each
+    // item can be a decimal integer, or two decimal integers separated
+    // by a dash.
+    // E.g.:
+    //       0
+    //       0,1,2,3
+    //       0-3
+    //       1,10-23
+    const char* p = buffer;
+    const char* p_end = p + ret;
+    while (p < p_end) {
+      // Skip leading space, if any
+      while (p < p_end && my_isspace(*p))
+        p++;
+
+      // Find start and size of current item.
+      const char* item = p;
+      size_t item_len = static_cast<size_t>(p_end - p);
+      const char* item_next =
+          static_cast<const char*>(my_memchr(p, ',', item_len));
+      if (item_next != NULL) {
+        p = item_next + 1;
+        item_len = static_cast<size_t>(item_next - item);
+      } else {
+        p = p_end;
+        item_next = p_end;
+      }
+
+      // Ignore trailing spaces.
+      while (item_next > item && my_isspace(item_next[-1]))
+        item_next--;
+
+      // skip empty items.
+      if (item_next == item)
+        continue;
+
+      // read first decimal value.
+      uintptr_t start = 0;
+      const char* next = my_read_decimal_ptr(&start, item);
+      uintptr_t end = start;
+      if (*next == '-')
+        my_read_decimal_ptr(&end, next+1);
+
+      while (start <= end)
+        SetBit(start++);
+    }
+    return true;
+  }
+
+  // Intersect this CPU set with another one.
+  void IntersectWith(const CpuSet& other) {
+    for (size_t nn = 0; nn < kMaskWordCount; ++nn)
+      mask_[nn] &= other.mask_[nn];
+  }
+
+  // Return the number of CPUs in this set.
+  int GetCount() {
+    int result = 0;
+    for (size_t nn = 0; nn < kMaskWordCount; ++nn) {
+      result += __builtin_popcount(mask_[nn]);
+    }
+    return result;
+  }
+
+private:
+  void SetBit(uintptr_t index) {
+    size_t nn = static_cast<size_t>(index);
+    if (nn < kMaxCpus)
+      mask_[nn / kMaskWordBits] |= (1U << (nn % kMaskWordBits));
+  }
+
+  typedef uint32_t MaskWordType;
+  static const size_t kMaskWordBits = 8*sizeof(MaskWordType);
+  static const size_t kMaskWordCount =
+      (kMaxCpus + kMaskWordBits - 1) / kMaskWordBits;
+
+  MaskWordType mask_[kMaskWordCount];
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_MINIDUMP_WRITER_CPU_SET_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/minidump_writer/cpu_set_unittest.cc

@@ -0,0 +1,164 @@
+// Copyright (c) 2013, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+#include "breakpad_googletest_includes.h"
+#include "client/linux/minidump_writer/cpu_set.h"
+#include "common/linux/tests/auto_testfile.h"
+
+using namespace google_breakpad;
+
+namespace {
+
+typedef testing::Test CpuSetTest;
+
+// Helper class to write test text file to a temporary file and return
+// its file descriptor.
+class ScopedTestFile : public AutoTestFile {
+public:
+  explicit ScopedTestFile(const char* text)
+    : AutoTestFile("cpu_set", text) {
+  }
+};
+
+}
+
+TEST(CpuSetTest, EmptyCount) {
+  CpuSet set;
+  ASSERT_EQ(0, set.GetCount());
+}
+
+TEST(CpuSetTest, OneCpu) {
+  ScopedTestFile file("10");
+  ASSERT_TRUE(file.IsOk());
+
+  CpuSet set;
+  ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
+  ASSERT_EQ(1, set.GetCount());
+}
+
+TEST(CpuSetTest, OneCpuTerminated) {
+  ScopedTestFile file("10\n");
+  ASSERT_TRUE(file.IsOk());
+
+  CpuSet set;
+  ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
+  ASSERT_EQ(1, set.GetCount());
+}
+
+TEST(CpuSetTest, TwoCpusWithComma) {
+  ScopedTestFile file("1,10");
+  ASSERT_TRUE(file.IsOk());
+
+  CpuSet set;
+  ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
+  ASSERT_EQ(2, set.GetCount());
+}
+
+TEST(CpuSetTest, TwoCpusWithRange) {
+  ScopedTestFile file("1-2");
+  ASSERT_TRUE(file.IsOk());
+
+  CpuSet set;
+  ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
+  ASSERT_EQ(2, set.GetCount());
+}
+
+TEST(CpuSetTest, TenCpusWithRange) {
+  ScopedTestFile file("9-18");
+  ASSERT_TRUE(file.IsOk());
+
+  CpuSet set;
+  ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
+  ASSERT_EQ(10, set.GetCount());
+}
+
+TEST(CpuSetTest, MultiItems) {
+  ScopedTestFile file("0, 2-4, 128");
+  ASSERT_TRUE(file.IsOk());
+
+  CpuSet set;
+  ASSERT_TRUE(set.ParseSysFile(file.GetFd()));
+  ASSERT_EQ(5, set.GetCount());
+}
+
+TEST(CpuSetTest, IntersectWith) {
+  ScopedTestFile file1("9-19");
+  ASSERT_TRUE(file1.IsOk());
+  CpuSet set1;
+  ASSERT_TRUE(set1.ParseSysFile(file1.GetFd()));
+  ASSERT_EQ(11, set1.GetCount());
+
+  ScopedTestFile file2("16-24");
+  ASSERT_TRUE(file2.IsOk());
+  CpuSet set2;
+  ASSERT_TRUE(set2.ParseSysFile(file2.GetFd()));
+  ASSERT_EQ(9, set2.GetCount());
+
+  set1.IntersectWith(set2);
+  ASSERT_EQ(4, set1.GetCount());
+  ASSERT_EQ(9, set2.GetCount());
+}
+
+TEST(CpuSetTest, SelfIntersection) {
+  ScopedTestFile file1("9-19");
+  ASSERT_TRUE(file1.IsOk());
+  CpuSet set1;
+  ASSERT_TRUE(set1.ParseSysFile(file1.GetFd()));
+  ASSERT_EQ(11, set1.GetCount());
+
+  set1.IntersectWith(set1);
+  ASSERT_EQ(11, set1.GetCount());
+}
+
+TEST(CpuSetTest, EmptyIntersection) {
+  ScopedTestFile file1("0-19");
+  ASSERT_TRUE(file1.IsOk());
+  CpuSet set1;
+  ASSERT_TRUE(set1.ParseSysFile(file1.GetFd()));
+  ASSERT_EQ(20, set1.GetCount());
+
+  ScopedTestFile file2("20-39");
+  ASSERT_TRUE(file2.IsOk());
+  CpuSet set2;
+  ASSERT_TRUE(set2.ParseSysFile(file2.GetFd()));
+  ASSERT_EQ(20, set2.GetCount());
+
+  set1.IntersectWith(set2);
+  ASSERT_EQ(0, set1.GetCount());
+
+  ASSERT_EQ(20, set2.GetCount());
+}
+

common/cpp/libs/3rd/inc/breakpad/client/linux/minidump_writer/directory_reader.h

@@ -0,0 +1,106 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_MINIDUMP_WRITER_DIRECTORY_READER_H_
+#define CLIENT_LINUX_MINIDUMP_WRITER_DIRECTORY_READER_H_
+
+#include <stdint.h>
+#include <unistd.h>
+#include <limits.h>
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+
+#include "common/linux/linux_libc_support.h"
+#include "third_party/lss/linux_syscall_support.h"
+
+namespace google_breakpad {
+
+// A class for enumerating a directory without using diropen/readdir or other
+// functions which may allocate memory.
+class DirectoryReader {
+ public:
+  DirectoryReader(int fd)
+      : fd_(fd),
+        buf_used_(0) {
+  }
+
+  // Return the next entry from the directory
+  //   name: (output) the NUL terminated entry name
+  //
+  // Returns true iff successful (false on EOF).
+  //
+  // After calling this, one must call |PopEntry| otherwise you'll get the same
+  // entry over and over.
+  bool GetNextEntry(const char** name) {
+    struct kernel_dirent* const dent =
+      reinterpret_cast<kernel_dirent*>(buf_);
+
+    if (buf_used_ == 0) {
+      // need to read more entries.
+      const int n = sys_getdents(fd_, dent, sizeof(buf_));
+      if (n < 0) {
+        return false;
+      } else if (n == 0) {
+        hit_eof_ = true;
+      } else {
+        buf_used_ += n;
+      }
+    }
+
+    if (buf_used_ == 0 && hit_eof_)
+      return false;
+
+    assert(buf_used_ > 0);
+
+    *name = dent->d_name;
+    return true;
+  }
+
+  void PopEntry() {
+    if (!buf_used_)
+      return;
+
+    const struct kernel_dirent* const dent =
+      reinterpret_cast<kernel_dirent*>(buf_);
+
+    buf_used_ -= dent->d_reclen;
+    my_memmove(buf_, buf_ + dent->d_reclen, buf_used_);
+  }
+
+ private:
+  const int fd_;
+  bool hit_eof_;
+  unsigned buf_used_;
+  uint8_t buf_[sizeof(struct kernel_dirent) + NAME_MAX + 1];
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_MINIDUMP_WRITER_DIRECTORY_READER_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/minidump_writer/directory_reader_unittest.cc

@@ -0,0 +1,78 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <set>
+#include <string>
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <sys/types.h>
+
+#include "client/linux/minidump_writer/directory_reader.h"
+#include "common/using_std_string.h"
+#include "breakpad_googletest_includes.h"
+
+using namespace google_breakpad;
+
+namespace {
+typedef testing::Test DirectoryReaderTest;
+}
+
+TEST(DirectoryReaderTest, CompareResults) {
+  std::set<string> dent_set;
+
+  DIR *const dir = opendir("/proc/self");
+  ASSERT_TRUE(dir != NULL);
+
+  struct dirent* dent;
+  while ((dent = readdir(dir)))
+    dent_set.insert(dent->d_name);
+
+  closedir(dir);
+
+  const int fd = open("/proc/self", O_DIRECTORY | O_RDONLY);
+  ASSERT_GE(fd, 0);
+
+  DirectoryReader dir_reader(fd);
+  unsigned seen = 0;
+
+  const char* name;
+  while (dir_reader.GetNextEntry(&name)) {
+    ASSERT_TRUE(dent_set.find(name) != dent_set.end());
+    seen++;
+    dir_reader.PopEntry();
+  }
+
+  ASSERT_TRUE(dent_set.find("status") != dent_set.end());
+  ASSERT_TRUE(dent_set.find("stat") != dent_set.end());
+  ASSERT_TRUE(dent_set.find("cmdline") != dent_set.end());
+
+  ASSERT_EQ(dent_set.size(), seen);
+  close(fd);
+}

common/cpp/libs/3rd/inc/breakpad/client/linux/minidump_writer/line_reader.h

@@ -0,0 +1,131 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CLIENT_LINUX_MINIDUMP_WRITER_LINE_READER_H_
+#define CLIENT_LINUX_MINIDUMP_WRITER_LINE_READER_H_
+
+#include <stdint.h>
+#include <assert.h>
+#include <string.h>
+
+#include "common/linux/linux_libc_support.h"
+#include "third_party/lss/linux_syscall_support.h"
+
+namespace google_breakpad {
+
+// A class for reading a file, line by line, without using fopen/fgets or other
+// functions which may allocate memory.
+class LineReader {
+ public:
+  LineReader(int fd)
+      : fd_(fd),
+        hit_eof_(false),
+        buf_used_(0) {
+  }
+
+  // The maximum length of a line.
+  static const size_t kMaxLineLen = 512;
+
+  // Return the next line from the file.
+  //   line: (output) a pointer to the start of the line. The line is NUL
+  //     terminated.
+  //   len: (output) the length of the line (not inc the NUL byte)
+  //
+  // Returns true iff successful (false on EOF).
+  //
+  // One must call |PopLine| after this function, otherwise you'll continue to
+  // get the same line over and over.
+  bool GetNextLine(const char **line, unsigned *len) {
+    for (;;) {
+      if (buf_used_ == 0 && hit_eof_)
+        return false;
+
+      for (unsigned i = 0; i < buf_used_; ++i) {
+        if (buf_[i] == '\n' || buf_[i] == 0) {
+          buf_[i] = 0;
+          *len = i;
+          *line = buf_;
+          return true;
+        }
+      }
+
+      if (buf_used_ == sizeof(buf_)) {
+        // we scanned the whole buffer and didn't find an end-of-line marker.
+        // This line is too long to process.
+        return false;
+      }
+
+      // We didn't find any end-of-line terminators in the buffer. However, if
+      // this is the last line in the file it might not have one:
+      if (hit_eof_) {
+        assert(buf_used_);
+        // There's room for the NUL because of the buf_used_ == sizeof(buf_)
+        // check above.
+        buf_[buf_used_] = 0;
+        *len = buf_used_;
+        buf_used_ += 1;  // since we appended the NUL.
+        *line = buf_;
+        return true;
+      }
+
+      // Otherwise, we should pull in more data from the file
+      const ssize_t n = sys_read(fd_, buf_ + buf_used_,
+                                 sizeof(buf_) - buf_used_);
+      if (n < 0) {
+        return false;
+      } else if (n == 0) {
+        hit_eof_ = true;
+      } else {
+        buf_used_ += n;
+      }
+
+      // At this point, we have either set the hit_eof_ flag, or we have more
+      // data to process...
+    }
+  }
+
+  void PopLine(unsigned len) {
+    // len doesn't include the NUL byte at the end.
+
+    assert(buf_used_ >= len + 1);
+    buf_used_ -= len + 1;
+    my_memmove(buf_, buf_ + len + 1, buf_used_);
+  }
+
+ private:
+  const int fd_;
+
+  bool hit_eof_;
+  unsigned buf_used_;
+  char buf_[kMaxLineLen];
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_MINIDUMP_WRITER_LINE_READER_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/minidump_writer/line_reader_unittest.cc

@@ -0,0 +1,169 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#include "client/linux/minidump_writer/line_reader.h"
+#include "breakpad_googletest_includes.h"
+#include "common/linux/tests/auto_testfile.h"
+
+using namespace google_breakpad;
+
+namespace {
+
+typedef testing::Test LineReaderTest;
+
+class ScopedTestFile : public AutoTestFile {
+public:
+  explicit ScopedTestFile(const char* text)
+    : AutoTestFile("line_reader", text) {
+  }
+
+  ScopedTestFile(const char* text, size_t text_len)
+    : AutoTestFile("line_reader", text, text_len) {
+  }
+};
+
+}
+
+TEST(LineReaderTest, EmptyFile) {
+  ScopedTestFile file("");
+  ASSERT_TRUE(file.IsOk());
+  LineReader reader(file.GetFd());
+
+  const char *line;
+  unsigned len;
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+}
+
+TEST(LineReaderTest, OneLineTerminated) {
+  ScopedTestFile file("a\n");
+  ASSERT_TRUE(file.IsOk());
+  LineReader reader(file.GetFd());
+
+  const char *line;
+  unsigned int len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ((unsigned int)1, len);
+  ASSERT_EQ('a', line[0]);
+  ASSERT_EQ('\0', line[1]);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+}
+
+TEST(LineReaderTest, OneLine) {
+  ScopedTestFile file("a");
+  ASSERT_TRUE(file.IsOk());
+  LineReader reader(file.GetFd());
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ((unsigned)1, len);
+  ASSERT_EQ('a', line[0]);
+  ASSERT_EQ('\0', line[1]);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+}
+
+TEST(LineReaderTest, TwoLinesTerminated) {
+  ScopedTestFile file("a\nb\n");
+  ASSERT_TRUE(file.IsOk());
+  LineReader reader(file.GetFd());
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ((unsigned)1, len);
+  ASSERT_EQ('a', line[0]);
+  ASSERT_EQ('\0', line[1]);
+  reader.PopLine(len);
+
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ((unsigned)1, len);
+  ASSERT_EQ('b', line[0]);
+  ASSERT_EQ('\0', line[1]);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+}
+
+TEST(LineReaderTest, TwoLines) {
+  ScopedTestFile file("a\nb");
+  ASSERT_TRUE(file.IsOk());
+  LineReader reader(file.GetFd());
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ((unsigned)1, len);
+  ASSERT_EQ('a', line[0]);
+  ASSERT_EQ('\0', line[1]);
+  reader.PopLine(len);
+
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ((unsigned)1, len);
+  ASSERT_EQ('b', line[0]);
+  ASSERT_EQ('\0', line[1]);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+}
+
+TEST(LineReaderTest, MaxLength) {
+  char l[LineReader::kMaxLineLen-1];
+  memset(l, 'a', sizeof(l));
+  ScopedTestFile file(l, sizeof(l));
+  ASSERT_TRUE(file.IsOk());
+  LineReader reader(file.GetFd());
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(sizeof(l), len);
+  ASSERT_TRUE(memcmp(l, line, sizeof(l)) == 0);
+  ASSERT_EQ('\0', line[len]);
+}
+
+TEST(LineReaderTest, TooLong) {
+  // Note: this writes kMaxLineLen 'a' chars in the test file.
+  char l[LineReader::kMaxLineLen];
+  memset(l, 'a', sizeof(l));
+  ScopedTestFile file(l, sizeof(l));
+  ASSERT_TRUE(file.IsOk());
+  LineReader reader(file.GetFd());
+
+  const char *line;
+  unsigned len;
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+}

common/cpp/libs/3rd/inc/breakpad/client/linux/minidump_writer/linux_core_dumper.cc

@@ -0,0 +1,236 @@
+// Copyright (c) 2012, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// linux_core_dumper.cc: Implement google_breakpad::LinuxCoreDumper.
+// See linux_core_dumper.h for details.
+
+#include "client/linux/minidump_writer/linux_core_dumper.h"
+
+#include <asm/ptrace.h>
+#include <assert.h>
+#include <elf.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/procfs.h>
+
+#include "common/linux/linux_libc_support.h"
+
+namespace google_breakpad {
+
+LinuxCoreDumper::LinuxCoreDumper(pid_t pid,
+                                 const char* core_path,
+                                 const char* procfs_path)
+    : LinuxDumper(pid),
+      core_path_(core_path),
+      procfs_path_(procfs_path),
+      thread_infos_(&allocator_, 8) {
+  assert(core_path_);
+}
+
+bool LinuxCoreDumper::BuildProcPath(char* path, pid_t pid,
+                                    const char* node) const {
+  if (!path || !node)
+    return false;
+
+  size_t node_len = my_strlen(node);
+  if (node_len == 0)
+    return false;
+
+  size_t procfs_path_len = my_strlen(procfs_path_);
+  size_t total_length = procfs_path_len + 1 + node_len;
+  if (total_length >= NAME_MAX)
+    return false;
+
+  memcpy(path, procfs_path_, procfs_path_len);
+  path[procfs_path_len] = '/';
+  memcpy(path + procfs_path_len + 1, node, node_len);
+  path[total_length] = '\0';
+  return true;
+}
+
+void LinuxCoreDumper::CopyFromProcess(void* dest, pid_t child,
+                                      const void* src, size_t length) {
+  ElfCoreDump::Addr virtual_address = reinterpret_cast<ElfCoreDump::Addr>(src);
+  // TODO(benchan): Investigate whether the data to be copied could span
+  // across multiple segments in the core dump file. ElfCoreDump::CopyData
+  // and this method do not handle that case yet.
+  if (!core_.CopyData(dest, virtual_address, length)) {
+    // If the data segment is not found in the core dump, fill the result
+    // with marker characters.
+    memset(dest, 0xab, length);
+  }
+}
+
+bool LinuxCoreDumper::GetThreadInfoByIndex(size_t index, ThreadInfo* info) {
+  if (index >= thread_infos_.size())
+    return false;
+
+  *info = thread_infos_[index];
+  const uint8_t* stack_pointer;
+#if defined(__i386)
+  memcpy(&stack_pointer, &info->regs.esp, sizeof(info->regs.esp));
+#elif defined(__x86_64)
+  memcpy(&stack_pointer, &info->regs.rsp, sizeof(info->regs.rsp));
+#elif defined(__ARM_EABI__)
+  memcpy(&stack_pointer, &info->regs.ARM_sp, sizeof(info->regs.ARM_sp));
+#elif defined(__mips__)
+  stack_pointer = 
+      reinterpret_cast<uint8_t*>(info->regs.regs[MD_CONTEXT_MIPS_REG_SP]);
+#else
+#error "This code hasn't been ported to your platform yet."
+#endif
+  info->stack_pointer = reinterpret_cast<uintptr_t>(stack_pointer);
+  return true;
+}
+
+bool LinuxCoreDumper::IsPostMortem() const {
+  return true;
+}
+
+bool LinuxCoreDumper::ThreadsSuspend() {
+  return true;
+}
+
+bool LinuxCoreDumper::ThreadsResume() {
+  return true;
+}
+
+bool LinuxCoreDumper::EnumerateThreads() {
+  if (!mapped_core_file_.Map(core_path_)) {
+    fprintf(stderr, "Could not map core dump file into memory\n");
+    return false;
+  }
+
+  core_.SetContent(mapped_core_file_.content());
+  if (!core_.IsValid()) {
+    fprintf(stderr, "Invalid core dump file\n");
+    return false;
+  }
+
+  ElfCoreDump::Note note = core_.GetFirstNote();
+  if (!note.IsValid()) {
+    fprintf(stderr, "PT_NOTE section not found\n");
+    return false;
+  }
+
+  bool first_thread = true;
+  do {
+    ElfCoreDump::Word type = note.GetType();
+    MemoryRange name = note.GetName();
+    MemoryRange description = note.GetDescription();
+
+    if (type == 0 || name.IsEmpty() || description.IsEmpty()) {
+      fprintf(stderr, "Could not found a valid PT_NOTE.\n");
+      return false;
+    }
+
+    // Based on write_note_info() in linux/kernel/fs/binfmt_elf.c, notes are
+    // ordered as follows (NT_PRXFPREG and NT_386_TLS are i386 specific):
+    //   Thread           Name          Type
+    //   -------------------------------------------------------------------
+    //   1st thread       CORE          NT_PRSTATUS
+    //   process-wide     CORE          NT_PRPSINFO
+    //   process-wide     CORE          NT_AUXV
+    //   1st thread       CORE          NT_FPREGSET
+    //   1st thread       LINUX         NT_PRXFPREG
+    //   1st thread       LINUX         NT_386_TLS
+    //
+    //   2nd thread       CORE          NT_PRSTATUS
+    //   2nd thread       CORE          NT_FPREGSET
+    //   2nd thread       LINUX         NT_PRXFPREG
+    //   2nd thread       LINUX         NT_386_TLS
+    //
+    //   3rd thread       CORE          NT_PRSTATUS
+    //   3rd thread       CORE          NT_FPREGSET
+    //   3rd thread       LINUX         NT_PRXFPREG
+    //   3rd thread       LINUX         NT_386_TLS
+    //
+    // The following code only works if notes are ordered as expected.
+    switch (type) {
+      case NT_PRSTATUS: {
+        if (description.length() != sizeof(elf_prstatus)) {
+          fprintf(stderr, "Found NT_PRSTATUS descriptor of unexpected size\n");
+          return false;
+        }
+
+        const elf_prstatus* status =
+            reinterpret_cast<const elf_prstatus*>(description.data());
+        pid_t pid = status->pr_pid;
+        ThreadInfo info;
+        memset(&info, 0, sizeof(ThreadInfo));
+        info.tgid = status->pr_pgrp;
+        info.ppid = status->pr_ppid;
+        memcpy(&info.regs, status->pr_reg, sizeof(info.regs));
+        if (first_thread) {
+          crash_thread_ = pid;
+          crash_signal_ = status->pr_info.si_signo;
+        }
+        first_thread = false;
+        threads_.push_back(pid);
+        thread_infos_.push_back(info);
+        break;
+      }
+#if defined(__i386) || defined(__x86_64)
+      case NT_FPREGSET: {
+        if (thread_infos_.empty())
+          return false;
+
+        ThreadInfo* info = &thread_infos_.back();
+        if (description.length() != sizeof(info->fpregs)) {
+          fprintf(stderr, "Found NT_FPREGSET descriptor of unexpected size\n");
+          return false;
+        }
+
+        memcpy(&info->fpregs, description.data(), sizeof(info->fpregs));
+        break;
+      }
+#endif
+#if defined(__i386)
+      case NT_PRXFPREG: {
+        if (thread_infos_.empty())
+          return false;
+
+        ThreadInfo* info = &thread_infos_.back();
+        if (description.length() != sizeof(info->fpxregs)) {
+          fprintf(stderr, "Found NT_PRXFPREG descriptor of unexpected size\n");
+          return false;
+        }
+
+        memcpy(&info->fpxregs, description.data(), sizeof(info->fpxregs));
+        break;
+      }
+#endif
+    }
+    note = note.GetNextNote();
+  } while (note.IsValid());
+
+  return true;
+}
+
+}  // namespace google_breakpad

common/cpp/libs/3rd/inc/breakpad/client/linux/minidump_writer/linux_core_dumper.h

@@ -0,0 +1,122 @@
+// Copyright (c) 2012, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// linux_core_dumper.h: Define the google_breakpad::LinuxCoreDumper
+// class, which is derived from google_breakpad::LinuxDumper to extract
+// information from a crashed process via its core dump and proc files.
+
+#ifndef CLIENT_LINUX_MINIDUMP_WRITER_LINUX_CORE_DUMPER_H_
+#define CLIENT_LINUX_MINIDUMP_WRITER_LINUX_CORE_DUMPER_H_
+
+#include "client/linux/minidump_writer/linux_dumper.h"
+#include "common/linux/elf_core_dump.h"
+#include "common/linux/memory_mapped_file.h"
+
+namespace google_breakpad {
+
+class LinuxCoreDumper : public LinuxDumper {
+ public:
+  // Constructs a dumper for extracting information of a given process
+  // with a process ID of |pid| via its core dump file at |core_path| and
+  // its proc files at |procfs_path|. If |procfs_path| is a copy of
+  // /proc/<pid>, it should contain the following files:
+  //     auxv, cmdline, environ, exe, maps, status
+  LinuxCoreDumper(pid_t pid, const char* core_path, const char* procfs_path);
+
+  // Implements LinuxDumper::BuildProcPath().
+  // Builds a proc path for a certain pid for a node (/proc/<pid>/<node>).
+  // |path| is a character array of at least NAME_MAX bytes to return the
+  // result.|node| is the final node without any slashes. Return true on
+  // success.
+  //
+  // As this dumper performs a post-mortem dump and makes use of a copy
+  // of the proc files of the crashed process, this derived method does
+  // not actually make use of |pid| and always returns a subpath of
+  // |procfs_path_| regardless of whether |pid| corresponds to the main
+  // process or a thread of the process, i.e. assuming both the main process
+  // and its threads have the following proc files with the same content:
+  //     auxv, cmdline, environ, exe, maps, status
+  virtual bool BuildProcPath(char* path, pid_t pid, const char* node) const;
+
+  // Implements LinuxDumper::CopyFromProcess().
+  // Copies content of |length| bytes from a given process |child|,
+  // starting from |src|, into |dest|. This method extracts the content
+  // the core dump and fills |dest| with a sequence of marker bytes
+  // if the expected data is not found in the core dump.
+  virtual void CopyFromProcess(void* dest, pid_t child, const void* src,
+                               size_t length);
+
+  // Implements LinuxDumper::GetThreadInfoByIndex().
+  // Reads information about the |index|-th thread of |threads_|.
+  // Returns true on success. One must have called |ThreadsSuspend| first.
+  virtual bool GetThreadInfoByIndex(size_t index, ThreadInfo* info);
+
+  // Implements LinuxDumper::IsPostMortem().
+  // Always returns true to indicate that this dumper performs a
+  // post-mortem dump of a crashed process via a core dump file.
+  virtual bool IsPostMortem() const;
+
+  // Implements LinuxDumper::ThreadsSuspend().
+  // As the dumper performs a post-mortem dump via a core dump file,
+  // there is no threads to suspend. This method does nothing and
+  // always returns true.
+  virtual bool ThreadsSuspend();
+
+  // Implements LinuxDumper::ThreadsResume().
+  // As the dumper performs a post-mortem dump via a core dump file,
+  // there is no threads to resume. This method does nothing and
+  // always returns true.
+  virtual bool ThreadsResume();
+
+ protected:
+  // Implements LinuxDumper::EnumerateThreads().
+  // Enumerates all threads of the given process into |threads_|.
+  virtual bool EnumerateThreads();
+
+ private:
+  // Path of the core dump file.
+  const char* core_path_;
+
+  // Path of the directory containing the proc files of the given process,
+  // which is usually a copy of /proc/<pid>.
+  const char* procfs_path_;
+
+  // Memory-mapped core dump file at |core_path_|.
+  MemoryMappedFile mapped_core_file_;
+
+  // Content of the core dump file.
+  ElfCoreDump core_;
+
+  // Thread info found in the core dump file.
+  wasteful_vector<ThreadInfo> thread_infos_;
+};
+
+}  // namespace google_breakpad
+
+#endif  // CLIENT_LINUX_HANDLER_LINUX_CORE_DUMPER_H_

common/cpp/libs/3rd/inc/breakpad/client/linux/minidump_writer/linux_core_dumper_unittest.cc

@@ -0,0 +1,113 @@
+// Copyright (c) 2012, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// linux_core_dumper_unittest.cc:
+// Unit tests for google_breakpad::LinuxCoreDumoer.
+
+#include <string>
+
+#include "breakpad_googletest_includes.h"
+#include "client/linux/minidump_writer/linux_core_dumper.h"
+#include "common/linux/tests/crash_generator.h"
+#include "common/using_std_string.h"
+
+using namespace google_breakpad;
+
+TEST(LinuxCoreDumperTest, BuildProcPath) {
+  const pid_t pid = getpid();
+  const char procfs_path[] = "/procfs_copy";
+  LinuxCoreDumper dumper(getpid(), "core_file", procfs_path);
+
+  char maps_path[NAME_MAX] = "";
+  char maps_path_expected[NAME_MAX];
+  snprintf(maps_path_expected, sizeof(maps_path_expected),
+           "%s/maps", procfs_path);
+  EXPECT_TRUE(dumper.BuildProcPath(maps_path, pid, "maps"));
+  EXPECT_STREQ(maps_path_expected, maps_path);
+
+  EXPECT_FALSE(dumper.BuildProcPath(NULL, pid, "maps"));
+  EXPECT_FALSE(dumper.BuildProcPath(maps_path, pid, ""));
+  EXPECT_FALSE(dumper.BuildProcPath(maps_path, pid, NULL));
+
+  char long_node[NAME_MAX];
+  size_t long_node_len = NAME_MAX - strlen(procfs_path) - 1;
+  memset(long_node, 'a', long_node_len);
+  long_node[long_node_len] = '\0';
+  EXPECT_FALSE(dumper.BuildProcPath(maps_path, pid, long_node));
+}
+
+TEST(LinuxCoreDumperTest, VerifyDumpWithMultipleThreads) {
+  CrashGenerator crash_generator;
+  if (!crash_generator.HasDefaultCorePattern()) {
+    fprintf(stderr, "LinuxCoreDumperTest.VerifyDumpWithMultipleThreads test "
+            "is skipped due to non-default core pattern\n");
+    return;
+  }
+
+  const unsigned kNumOfThreads = 3;
+  const unsigned kCrashThread = 1;
+  const int kCrashSignal = SIGABRT;
+  pid_t child_pid;
+  // TODO(benchan): Revert to use ASSERT_TRUE once the flakiness in
+  // CrashGenerator is identified and fixed.
+  if (!crash_generator.CreateChildCrash(kNumOfThreads, kCrashThread,
+                                        kCrashSignal, &child_pid)) {
+    fprintf(stderr, "LinuxCoreDumperTest.VerifyDumpWithMultipleThreads test "
+            "is skipped due to no core dump generated\n");
+    return;
+  }
+
+  const string core_file = crash_generator.GetCoreFilePath();
+  const string procfs_path = crash_generator.GetDirectoryOfProcFilesCopy();
+  LinuxCoreDumper dumper(child_pid, core_file.c_str(), procfs_path.c_str());
+  EXPECT_TRUE(dumper.Init());
+
+  EXPECT_TRUE(dumper.IsPostMortem());
+
+  // These are no-ops and should always return true.
+  EXPECT_TRUE(dumper.ThreadsSuspend());
+  EXPECT_TRUE(dumper.ThreadsResume());
+
+  // LinuxCoreDumper cannot determine the crash address and thus it always
+  // sets the crash address to 0.
+  EXPECT_EQ(0U, dumper.crash_address());
+  EXPECT_EQ(kCrashSignal, dumper.crash_signal());
+  EXPECT_EQ(crash_generator.GetThreadId(kCrashThread),
+            dumper.crash_thread());
+
+  EXPECT_EQ(kNumOfThreads, dumper.threads().size());
+  for (unsigned i = 0; i < kNumOfThreads; ++i) {
+    ThreadInfo info;
+    EXPECT_TRUE(dumper.GetThreadInfoByIndex(i, &info));
+    const void* stack;
+    size_t stack_len;
+    EXPECT_TRUE(dumper.GetStackInfo(&stack, &stack_len, info.stack_pointer));
+    EXPECT_EQ(getpid(), info.ppid);
+  }
+}

common/cpp/libs/3rd/inc/breakpad/client/linux/minidump_writer/linux_dumper.cc

@@ -0,0 +1,338 @@
+// Copyright (c) 2010, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// linux_dumper.cc: Implement google_breakpad::LinuxDumper.
+// See linux_dumper.h for details.
+
+// This code deals with the mechanics of getting information about a crashed
+// process. Since this code may run in a compromised address space, the same
+// rules apply as detailed at the top of minidump_writer.h: no libc calls and
+// use the alternative allocator.
+
+#include "client/linux/minidump_writer/linux_dumper.h"
+
+#include <assert.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stddef.h>
+#include <string.h>
+
+#include "client/linux/minidump_writer/line_reader.h"
+#include "common/linux/file_id.h"
+#include "common/linux/linux_libc_support.h"
+#include "common/linux/memory_mapped_file.h"
+#include "common/linux/safe_readlink.h"
+#include "third_party/lss/linux_syscall_support.h"
+
+static const char kMappedFileUnsafePrefix[] = "/dev/";
+static const char kDeletedSuffix[] = " (deleted)";
+
+inline static bool IsMappedFileOpenUnsafe(
+    const google_breakpad::MappingInfo& mapping) {
+  // It is unsafe to attempt to open a mapped file that lives under /dev,
+  // because the semantics of the open may be driver-specific so we'd risk
+  // hanging the crash dumper. And a file in /dev/ almost certainly has no
+  // ELF file identifier anyways.
+  return my_strncmp(mapping.name,
+                    kMappedFileUnsafePrefix,
+                    sizeof(kMappedFileUnsafePrefix) - 1) == 0;
+}
+
+namespace google_breakpad {
+
+// All interesting auvx entry types are below AT_SYSINFO_EHDR
+#define AT_MAX AT_SYSINFO_EHDR
+
+LinuxDumper::LinuxDumper(pid_t pid)
+    : pid_(pid),
+      crash_address_(0),
+      crash_signal_(0),
+      crash_thread_(pid),
+      threads_(&allocator_, 8),
+      mappings_(&allocator_),
+      auxv_(&allocator_, AT_MAX + 1) {
+  // The passed-in size to the constructor (above) is only a hint.
+  // Must call .resize() to do actual initialization of the elements.
+  auxv_.resize(AT_MAX + 1);
+}
+
+LinuxDumper::~LinuxDumper() {
+}
+
+bool LinuxDumper::Init() {
+  return ReadAuxv() && EnumerateThreads() && EnumerateMappings();
+}
+
+bool
+LinuxDumper::ElfFileIdentifierForMapping(const MappingInfo& mapping,
+                                         bool member,
+                                         unsigned int mapping_id,
+                                         uint8_t identifier[sizeof(MDGUID)]) {
+  assert(!member || mapping_id < mappings_.size());
+  my_memset(identifier, 0, sizeof(MDGUID));
+  if (IsMappedFileOpenUnsafe(mapping))
+    return false;
+
+  // Special-case linux-gate because it's not a real file.
+  if (my_strcmp(mapping.name, kLinuxGateLibraryName) == 0) {
+    void* linux_gate = NULL;
+    if (pid_ == sys_getpid()) {
+      linux_gate = reinterpret_cast<void*>(mapping.start_addr);
+    } else {
+      linux_gate = allocator_.Alloc(mapping.size);
+      CopyFromProcess(linux_gate, pid_,
+                      reinterpret_cast<const void*>(mapping.start_addr),
+                      mapping.size);
+    }
+    return FileID::ElfFileIdentifierFromMappedFile(linux_gate, identifier);
+  }
+
+  char filename[NAME_MAX];
+  size_t filename_len = my_strlen(mapping.name);
+  assert(filename_len < NAME_MAX);
+  if (filename_len >= NAME_MAX)
+    return false;
+  my_memcpy(filename, mapping.name, filename_len);
+  filename[filename_len] = '\0';
+  bool filename_modified = HandleDeletedFileInMapping(filename);
+
+  MemoryMappedFile mapped_file(filename);
+  if (!mapped_file.data())  // Should probably check if size >= ElfW(Ehdr)?
+    return false;
+
+  bool success =
+      FileID::ElfFileIdentifierFromMappedFile(mapped_file.data(), identifier);
+  if (success && member && filename_modified) {
+    mappings_[mapping_id]->name[filename_len -
+                                sizeof(kDeletedSuffix) + 1] = '\0';
+  }
+
+  return success;
+}
+
+bool LinuxDumper::ReadAuxv() {
+  char auxv_path[NAME_MAX];
+  if (!BuildProcPath(auxv_path, pid_, "auxv")) {
+    return false;
+  }
+
+  int fd = sys_open(auxv_path, O_RDONLY, 0);
+  if (fd < 0) {
+    return false;
+  }
+
+  elf_aux_entry one_aux_entry;
+  bool res = false;
+  while (sys_read(fd,
+                  &one_aux_entry,
+                  sizeof(elf_aux_entry)) == sizeof(elf_aux_entry) &&
+         one_aux_entry.a_type != AT_NULL) {
+    if (one_aux_entry.a_type <= AT_MAX) {
+      auxv_[one_aux_entry.a_type] = one_aux_entry.a_un.a_val;
+      res = true;
+    }
+  }
+  sys_close(fd);
+  return res;
+}
+
+bool LinuxDumper::EnumerateMappings() {
+  char maps_path[NAME_MAX];
+  if (!BuildProcPath(maps_path, pid_, "maps"))
+    return false;
+
+  // linux_gate_loc is the beginning of the kernel's mapping of
+  // linux-gate.so in the process.  It doesn't actually show up in the
+  // maps list as a filename, but it can be found using the AT_SYSINFO_EHDR
+  // aux vector entry, which gives the information necessary to special
+  // case its entry when creating the list of mappings.
+  // See http://www.trilithium.com/johan/2005/08/linux-gate/ for more
+  // information.
+  const void* linux_gate_loc =
+      reinterpret_cast<void *>(auxv_[AT_SYSINFO_EHDR]);
+  // Although the initial executable is usually the first mapping, it's not
+  // guaranteed (see http://crosbug.com/25355); therefore, try to use the
+  // actual entry point to find the mapping.
+  const void* entry_point_loc = reinterpret_cast<void *>(auxv_[AT_ENTRY]);
+
+  const int fd = sys_open(maps_path, O_RDONLY, 0);
+  if (fd < 0)
+    return false;
+  LineReader* const line_reader = new(allocator_) LineReader(fd);
+
+  const char* line;
+  unsigned line_len;
+  while (line_reader->GetNextLine(&line, &line_len)) {
+    uintptr_t start_addr, end_addr, offset;
+
+    const char* i1 = my_read_hex_ptr(&start_addr, line);
+    if (*i1 == '-') {
+      const char* i2 = my_read_hex_ptr(&end_addr, i1 + 1);
+      if (*i2 == ' ') {
+        const char* i3 = my_read_hex_ptr(&offset, i2 + 6 /* skip ' rwxp ' */);
+        if (*i3 == ' ') {
+          const char* name = NULL;
+          // Only copy name if the name is a valid path name, or if
+          // it's the VDSO image.
+          if (((name = my_strchr(line, '/')) == NULL) &&
+              linux_gate_loc &&
+              reinterpret_cast<void*>(start_addr) == linux_gate_loc) {
+            name = kLinuxGateLibraryName;
+            offset = 0;
+          }
+          // Merge adjacent mappings with the same name into one module,
+          // assuming they're a single library mapped by the dynamic linker
+          if (name && !mappings_.empty()) {
+            MappingInfo* module = mappings_.back();
+            if ((start_addr == module->start_addr + module->size) &&
+                (my_strlen(name) == my_strlen(module->name)) &&
+                (my_strncmp(name, module->name, my_strlen(name)) == 0)) {
+              module->size = end_addr - module->start_addr;
+              line_reader->PopLine(line_len);
+              continue;
+            }
+          }
+          MappingInfo* const module = new(allocator_) MappingInfo;
+          my_memset(module, 0, sizeof(MappingInfo));
+          module->start_addr = start_addr;
+          module->size = end_addr - start_addr;
+          module->offset = offset;
+          if (name != NULL) {
+            const unsigned l = my_strlen(name);
+            if (l < sizeof(module->name))
+              my_memcpy(module->name, name, l);
+          }
+          // If this is the entry-point mapping, and it's not already the
+          // first one, then we need to make it be first.  This is because
+          // the minidump format assumes the first module is the one that
+          // corresponds to the main executable (as codified in
+          // processor/minidump.cc:MinidumpModuleList::GetMainModule()).
+          if (entry_point_loc &&
+              (entry_point_loc >=
+                  reinterpret_cast<void*>(module->start_addr)) &&
+              (entry_point_loc <
+                  reinterpret_cast<void*>(module->start_addr+module->size)) &&
+              !mappings_.empty()) {
+            // push the module onto the front of the list.
+            mappings_.resize(mappings_.size() + 1);
+            for (size_t idx = mappings_.size() - 1; idx > 0; idx--)
+              mappings_[idx] = mappings_[idx - 1];
+            mappings_[0] = module;
+          } else {
+            mappings_.push_back(module);
+          }
+        }
+      }
+    }
+    line_reader->PopLine(line_len);
+  }
+
+  sys_close(fd);
+
+  return !mappings_.empty();
+}
+
+// Get information about the stack, given the stack pointer. We don't try to
+// walk the stack since we might not have all the information needed to do
+// unwind. So we just grab, up to, 32k of stack.
+bool LinuxDumper::GetStackInfo(const void** stack, size_t* stack_len,
+                               uintptr_t int_stack_pointer) {
+  // Move the stack pointer to the bottom of the page that it's in.
+  const uintptr_t page_size = getpagesize();
+
+  uint8_t* const stack_pointer =
+      reinterpret_cast<uint8_t*>(int_stack_pointer & ~(page_size - 1));
+
+  // The number of bytes of stack which we try to capture.
+  static const ptrdiff_t kStackToCapture = 32 * 1024;
+
+  const MappingInfo* mapping = FindMapping(stack_pointer);
+  if (!mapping)
+    return false;
+  const ptrdiff_t offset = stack_pointer -
+      reinterpret_cast<uint8_t*>(mapping->start_addr);
+  const ptrdiff_t distance_to_end =
+      static_cast<ptrdiff_t>(mapping->size) - offset;
+  *stack_len = distance_to_end > kStackToCapture ?
+      kStackToCapture : distance_to_end;
+  *stack = stack_pointer;
+  return true;
+}
+
+// Find the mapping which the given memory address falls in.
+const MappingInfo* LinuxDumper::FindMapping(const void* address) const {
+  const uintptr_t addr = (uintptr_t) address;
+
+  for (size_t i = 0; i < mappings_.size(); ++i) {
+    const uintptr_t start = static_cast<uintptr_t>(mappings_[i]->start_addr);
+    if (addr >= start && addr - start < mappings_[i]->size)
+      return mappings_[i];
+  }
+
+  return NULL;
+}
+
+bool LinuxDumper::HandleDeletedFileInMapping(char* path) const {
+  static const size_t kDeletedSuffixLen = sizeof(kDeletedSuffix) - 1;
+
+  // Check for ' (deleted)' in |path|.
+  // |path| has to be at least as long as "/x (deleted)".
+  const size_t path_len = my_strlen(path);
+  if (path_len < kDeletedSuffixLen + 2)
+    return false;
+  if (my_strncmp(path + path_len - kDeletedSuffixLen, kDeletedSuffix,
+                 kDeletedSuffixLen) != 0) {
+    return false;
+  }
+
+  // Check |path| against the /proc/pid/exe 'symlink'.
+  char exe_link[NAME_MAX];
+  char new_path[NAME_MAX];
+  if (!BuildProcPath(exe_link, pid_, "exe"))
+    return false;
+  if (!SafeReadLink(exe_link, new_path))
+    return false;
+  if (my_strcmp(path, new_path) != 0)
+    return false;
+
+  // Check to see if someone actually named their executable 'foo (deleted)'.
+  struct kernel_stat exe_stat;
+  struct kernel_stat new_path_stat;
+  if (sys_stat(exe_link, &exe_stat) == 0 &&
+      sys_stat(new_path, &new_path_stat) == 0 &&
+      exe_stat.st_dev == new_path_stat.st_dev &&
+      exe_stat.st_ino == new_path_stat.st_ino) {
+    return false;
+  }
+
+  my_memcpy(path, exe_link, NAME_MAX);
+  return true;
+}
+
+}  // namespace google_breakpad