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authorTom Tromey <tom@tromey.com>2017-10-08 12:40:07 -0600
committerTom Tromey <tom@tromey.com>2017-10-08 23:16:42 -0600
commit30a9c02feff56bd58a276c2a7262f364baa558ac (patch)
tree653735bbd531718449106195009cede65ffa1a0b /gdb/frame.h
parent757325a3f24e01bf8e7b7214f33c546bc52d1d12 (diff)
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Remove cleanup from frame_prepare_for_sniffer
Currently frame_prepare_for_sniffer returns a cleanup. This patch changes it to return void, and exposes frame_cleanup_after_sniffer to the caller. Normally I would write an RAII class for this sort of thing; but because there was just a single caller of frame_prepare_for_sniffer, and because this caller is already using try/catch, I thought it seemed ok to require explicit calls in this instance. Regression tested by the buildbot. gdb/ChangeLog 2017-10-08 Tom Tromey <tom@tromey.com> * frame-unwind.c (frame_unwind_try_unwinder): Update. * frame.h (frame_cleanup_after_sniffer): Declare. (frame_prepare_for_sniffer): Return void. * frame.c (frame_cleanup_after_sniffer): No longer static. Change type of argument. (frame_prepare_for_sniffer): Return void.
Diffstat (limited to 'gdb/frame.h')
-rw-r--r--gdb/frame.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/gdb/frame.h b/gdb/frame.h
index 1b72610..190ce76 100644
--- a/gdb/frame.h
+++ b/gdb/frame.h
@@ -791,11 +791,16 @@ extern void info_locals_command (char *, int);
extern void return_command (char *, int);
/* Set FRAME's unwinder temporarily, so that we can call a sniffer.
- Return a cleanup which should be called if unwinding fails, and
- discarded if it succeeds. */
+ If sniffing fails, the caller should be sure to call
+ frame_cleanup_after_sniffer. */
-struct cleanup *frame_prepare_for_sniffer (struct frame_info *frame,
- const struct frame_unwind *unwind);
+extern void frame_prepare_for_sniffer (struct frame_info *frame,
+ const struct frame_unwind *unwind);
+
+/* Clean up after a failed (wrong unwinder) attempt to unwind past
+ FRAME. */
+
+extern void frame_cleanup_after_sniffer (struct frame_info *frame);
/* Notes (cagney/2002-11-27, drow/2003-09-06):