mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-11-26 00:57:39 +01:00
4ab9e5dd10
Test that creates MiniDebugInfo-containing binary and then checks if it can recover the procedure names from its coredump. Signed-off-by: Martin Milata <mmilata@redhat.com>
53 lines
1.9 KiB
Bash
Executable file
53 lines
1.9 KiB
Bash
Executable file
#!/bin/sh
|
|
|
|
# this function is slight modification of the one used in RPM
|
|
# found at https://bugzilla.redhat.com/show_bug.cgi?id=834073
|
|
# written by Alexander Larsson <alexl@redhat.com>
|
|
add_minidebug()
|
|
{
|
|
debuginfo="$1" ## we don't have separate debuginfo file
|
|
binary="$1"
|
|
|
|
dynsyms=`mktemp`
|
|
funcsyms=`mktemp`
|
|
keep_symbols=`mktemp`
|
|
mini_debuginfo=`mktemp`
|
|
|
|
# Extract the dynamic symbols from the main binary, there is no need to also have these
|
|
# in the normal symbol table
|
|
nm -D "$binary" --format=posix --defined-only | awk '{ print $1 }' | sort > "$dynsyms"
|
|
# Extract all the text (i.e. function) symbols from the debuginfo
|
|
nm "$debuginfo" --format=posix --defined-only | awk '{ if ($2 == "T" || $2 == "t") print $1 }' | sort > "$funcsyms"
|
|
# Keep all the function symbols not already in the dynamic symbol table
|
|
comm -13 "$dynsyms" "$funcsyms" > "$keep_symbols"
|
|
# Copy the full debuginfo, keeping only a minumal set of symbols and removing some unnecessary sections
|
|
objcopy -S --remove-section .gdb_index --remove-section .comment --keep-symbols="$keep_symbols" "$debuginfo" "$mini_debuginfo" &> /dev/null
|
|
#Inject the compressed data into the .gnu_debugdata section of the original binary
|
|
xz "$mini_debuginfo"
|
|
mini_debuginfo="${mini_debuginfo}.xz"
|
|
objcopy --add-section .gnu_debugdata="$mini_debuginfo" "$binary"
|
|
rm -f "$dynsyms" "$funcsyms" "$keep_symbols" "$mini_debuginfo"
|
|
|
|
strip "$binary" ## throw away the symbol table
|
|
}
|
|
|
|
|
|
TESTDIR=`pwd`
|
|
TEMPDIR=`mktemp --tmpdir -d libunwind-test-XXXXXXXXXX`
|
|
trap "rm -r -- $TEMPDIR" EXIT
|
|
|
|
cp crasher $TEMPDIR/crasher
|
|
if [ "$1" = "-minidebuginfo" ]; then
|
|
add_minidebug $TEMPDIR/crasher
|
|
fi
|
|
|
|
# create core dump
|
|
(
|
|
cd $TEMPDIR
|
|
ulimit -c 10000
|
|
./crasher backing_files
|
|
) 2>/dev/null
|
|
COREFILE=$TEMPDIR/core*
|
|
|
|
# magic option -testcase enables checking for the specific contents of the stack
|
|
./test-coredump-unwind $COREFILE -testcase `cat $TEMPDIR/backing_files`
|