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| author | Andrew Burgess <aburgess@broadcom.com> | 2014-04-02 17:02:51 +0100 |
|---|---|---|
| committer | Andrew Burgess <aburgess@broadcom.com> | 2014-05-30 22:36:14 +0100 |
| commit | 938f0e2f6766e90a5ddc5df00e97a68873fd1252 (patch) | |
| tree | 44da0dc82ea1b1c1ff9134d8eaed17e28b8c0161 /gdb/frame.h | |
| parent | f6fb832249b8c64e9c35571fdabc323a62ad31fa (diff) | |
| download | gdb-938f0e2f6766e90a5ddc5df00e97a68873fd1252.zip gdb-938f0e2f6766e90a5ddc5df00e97a68873fd1252.tar.gz gdb-938f0e2f6766e90a5ddc5df00e97a68873fd1252.tar.bz2 | |
Remove previous frame if an error occurs when computing frame id during unwind.
https://sourceware.org/ml/gdb-patches/2014-05/msg00712.html
If an error is thrown during computing a frame id then the frame is left
in existence but without a valid frame id, this will trigger internal
errors if/when the frame is later visited (for example in a backtrace).
This patch catches errors raised while computing the frame id, and
arranges for the new frame, the one without a frame id, to be removed
from the linked list of frames.
gdb/ChangeLog:
* frame.c (remove_prev_frame): New function.
(get_prev_frame_if_no_cycle): Create / discard cleanup using
remove_prev_frame.
gdb/testsuite/ChangeLog:
* gdb.arch/amd64-invalid-stack-middle.S: New file.
* gdb.arch/amd64-invalid-stack-middle.c: New file.
* gdb.arch/amd64-invalid-stack-middle.exp: New file.
* gdb.arch/amd64-invalid-stack-top.c: New file.
* gdb.arch/amd64-invalid-stack-top.exp: New file.
Diffstat (limited to 'gdb/frame.h')
0 files changed, 0 insertions, 0 deletions