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authorJoel Brobecker <brobecker@gnat.com>2003-06-04 20:55:02 +0000
committerJoel Brobecker <brobecker@gnat.com>2003-06-04 20:55:02 +0000
commit4e37032562891dd25621982f5c0a4977482cdad3 (patch)
treedeb2d0f45a7816acd318a4c7d8edbd7be9eae3f2 /gdb/hppa-tdep.c
parentb757528ff667b76d6ba7ec2b12138abc2cd3164b (diff)
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* config/pa/nm-hppah.h (PREPARE_TO_PROCEED): Use the generic
prepare_to_proceed procedure instead of the hppa-specific one. * hppa-tdep.c (hppa_prepare_to_proceed): Remove, no longer used.
Diffstat (limited to 'gdb/hppa-tdep.c')
-rw-r--r--gdb/hppa-tdep.c86
1 files changed, 0 insertions, 86 deletions
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index 9366afc..24305ff 100644
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -4673,92 +4673,6 @@ unwind_command (char *exp, int from_tty)
pin (Total_frame_size);
}
-#ifdef PREPARE_TO_PROCEED
-
-/* If the user has switched threads, and there is a breakpoint
- at the old thread's pc location, then switch to that thread
- and return TRUE, else return FALSE and don't do a thread
- switch (or rather, don't seem to have done a thread switch).
-
- Ptrace-based gdb will always return FALSE to the thread-switch
- query, and thus also to PREPARE_TO_PROCEED.
-
- The important thing is whether there is a BPT instruction,
- not how many user breakpoints there are. So we have to worry
- about things like these:
-
- o Non-bp stop -- NO
-
- o User hits bp, no switch -- NO
-
- o User hits bp, switches threads -- YES
-
- o User hits bp, deletes bp, switches threads -- NO
-
- o User hits bp, deletes one of two or more bps
- at that PC, user switches threads -- YES
-
- o Plus, since we're buffering events, the user may have hit a
- breakpoint, deleted the breakpoint and then gotten another
- hit on that same breakpoint on another thread which
- actually hit before the delete. (FIXME in breakpoint.c
- so that "dead" breakpoints are ignored?) -- NO
-
- For these reasons, we have to violate information hiding and
- call "breakpoint_here_p". If core gdb thinks there is a bpt
- here, that's what counts, as core gdb is the one which is
- putting the BPT instruction in and taking it out.
-
- Note that this implementation is potentially redundant now that
- default_prepare_to_proceed() has been added.
-
- FIXME This may not support switching threads after Ctrl-C
- correctly. The default implementation does support this. */
-int
-hppa_prepare_to_proceed (void)
-{
- pid_t old_thread;
- pid_t current_thread;
-
- old_thread = hppa_switched_threads (PIDGET (inferior_ptid));
- if (old_thread != 0)
- {
- /* Switched over from "old_thread". Try to do
- as little work as possible, 'cause mostly
- we're going to switch back. */
- CORE_ADDR new_pc;
- CORE_ADDR old_pc = read_pc ();
-
- /* Yuk, shouldn't use global to specify current
- thread. But that's how gdb does it. */
- current_thread = PIDGET (inferior_ptid);
- inferior_ptid = pid_to_ptid (old_thread);
-
- new_pc = read_pc ();
- if (new_pc != old_pc /* If at same pc, no need */
- && breakpoint_here_p (new_pc))
- {
- /* User hasn't deleted the BP.
- Return TRUE, finishing switch to "old_thread". */
- flush_cached_frames ();
- registers_changed ();
-#if 0
- printf ("---> PREPARE_TO_PROCEED (was %d, now %d)!\n",
- current_thread, PIDGET (inferior_ptid));
-#endif
-
- return 1;
- }
-
- /* Otherwise switch back to the user-chosen thread. */
- inferior_ptid = pid_to_ptid (current_thread);
- new_pc = read_pc (); /* Re-prime register cache */
- }
-
- return 0;
-}
-#endif /* PREPARE_TO_PROCEED */
-
void
hppa_skip_permanent_breakpoint (void)
{