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