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elfutils/elfutils-0.137-dwarf-header-check-fix.diff
2012-11-29 12:05:16 +00:00

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From: Takashi Iwai <tiwai@novell.com>
Subject: Fix for kernel debuginfo files
References: https://bugzilla.novell.com/show_bug.cgi?id=468247, comments 17-20
References: https://bugzilla.novell.com/show_bug.cgi?id=433182
Above BZ originally occured with Systemtap testsuite (stmt_rel.exp).
# stap -e 'probe kernel.statement("bio_put@fs/bio.c:*") {}'
semantic error: libdw failure (dwarf_getsrcfiles): invalid DWARF
...
---
libdw/dwarf_getsrclines.c | 2 ++
1 file changed, 2 insertions(+)
Index: elfutils-0.155/libdw/dwarf_getsrclines.c
===================================================================
--- elfutils-0.155.orig/libdw/dwarf_getsrclines.c
+++ elfutils-0.155/libdw/dwarf_getsrclines.c
@@ -296,8 +296,10 @@ dwarf_getsrclines (Dwarf_Die *cudie, Dwa
/* Consistency check. */
if (unlikely (linep != header_start + header_length))
{
+#if 0
__libdw_seterrno (DWARF_E_INVALID_DWARF);
goto out;
+#endif
}
/* We are about to process the statement program. Initialize the