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| author | Ulrich Drepper <drepper@redhat.com> | 2006-05-02 00:50:46 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-05-02 00:50:46 +0000 |
| commit | afbf86d209f555381ceb07c58cc4e1741dee6d11 (patch) | |
| tree | 98b149e8b1339174b98c10a216c4106258b14766 /sysdeps/generic/unwind-dw2.c | |
| parent | 1e528c6e1bd9d6c7d952456eab826362f489dfbd (diff) | |
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* misc/tsearch.c (__tdelete): Remove unnecessary test
[Coverity CID 75].
* sysdeps/generic/unwind-dw2.c (execute_cfa_program): Print error
message for invalid DWARF data instead of crashing.
Diffstat (limited to 'sysdeps/generic/unwind-dw2.c')
| -rw-r--r-- | sysdeps/generic/unwind-dw2.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sysdeps/generic/unwind-dw2.c b/sysdeps/generic/unwind-dw2.c index 5ecf2846f3..d818e5dfd8 100644 --- a/sysdeps/generic/unwind-dw2.c +++ b/sysdeps/generic/unwind-dw2.c @@ -25,6 +25,7 @@ #include <error.h> #include <libintl.h> #include <dwarf2.h> +#include <stdio.h> #include <unwind.h> #include <unwind-pe.h> #include <unwind-dw2-fde.h> @@ -837,9 +838,16 @@ execute_cfa_program (const unsigned char *insn_ptr, case DW_CFA_restore_state: { struct frame_state_reg_info *old_rs = fs->regs.prev; - fs->regs = *old_rs; - old_rs->prev = unused_rs; - unused_rs = old_rs; +#ifdef _LIBC + if (old_rs == NULL) + __libc_fatal ("invalid DWARF unwind data"); + else +#endif + { + fs->regs = *old_rs; + old_rs->prev = unused_rs; + unused_rs = old_rs; + } } break; |