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| author | Andrew Cagney <cagney@redhat.com> | 2004-04-08 20:03:52 +0000 |
|---|---|---|
| committer | Andrew Cagney <cagney@redhat.com> | 2004-04-08 20:03:52 +0000 |
| commit | fb2be677dcb440b001df7739bda229295910a7c8 (patch) | |
| tree | 343dee28c6245e56eabcebd5fb77ac965c7ab071 /gdb/frame-unwind.h | |
| parent | 67faf007637dbb56ab9efb68af7a800a29bf3141 (diff) | |
| download | gdb-fb2be677dcb440b001df7739bda229295910a7c8.zip gdb-fb2be677dcb440b001df7739bda229295910a7c8.tar.gz gdb-fb2be677dcb440b001df7739bda229295910a7c8.tar.bz2 | |
2004-04-08 Andrew Cagney <cagney@redhat.com>
* frame-unwind.c (struct frame_unwind_table, frame_unwind_init)
(frame_unwind_prepend_unwinder, frame_unwind_append_sniffer)
(frame_unwind_find_by_frame): Re-implement the unwind code so
that it can both prepend and append sniffers. Replace
frame_unwind_register_unwinder with frame_unwind_prepend_unwinder.
* tramp-frame.c (tramp_frame_append): Use
frame_unwind_prepend_unwinder.
* frame-unwind.h (frame_unwind_prepend_unwinder): Replace
frame_unwind_register_unwinder.
* tramp-frame.h (tramp_frame_prepend_unwinder): Rename
tramp_frame_append.
* tramp-frame.c (tramp_frame_prepend_unwinder): Update.
* mips-linux-tdep.c (mips_linux_init_abi, mips_linux_init_abi)
(mips_linux_init_abi): Update.
Diffstat (limited to 'gdb/frame-unwind.h')
| -rw-r--r-- | gdb/frame-unwind.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/gdb/frame-unwind.h b/gdb/frame-unwind.h index 49f2889..12d6dd2 100644 --- a/gdb/frame-unwind.h +++ b/gdb/frame-unwind.h @@ -131,11 +131,14 @@ struct frame_unwind frame_sniffer_ftype *sniffer; }; -/* Register a frame unwinder, _appending_ it to the end of the search - list. */ -extern void frame_unwind_register_unwinder (struct gdbarch *gdbarch, - const struct frame_unwind *unwinder); - +/* Register a frame unwinder, _prepending_ it to the front of the + search list (so it is sniffed before previously registered + unwinders). By using a prepend, later calls can install unwinders + that override earlier calls. This allows, for instance, an OSABI + to install a a more specific sigtramp unwinder that overrides the + traditional brute-force unwinder. */ +extern void frame_unwind_prepend_unwinder (struct gdbarch *gdbarch, + const struct frame_unwind *unwinder); /* Given the NEXT frame, take a wiff of THIS frame's registers (namely the PC and attributes) and if it is the applicable unwinder return |