diff options
Diffstat (limited to 'gdb/hppa-tdep.c')
| -rw-r--r-- | gdb/hppa-tdep.c | 130 |
1 files changed, 17 insertions, 113 deletions
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c index 1f78d06d164..7c8e7629ad0 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) { @@ -4961,26 +4875,6 @@ hppa_cannot_store_register (int regnum) } CORE_ADDR -hppa_frame_args_address (struct frame_info *fi) -{ - return get_frame_base (fi); -} - -CORE_ADDR -hppa_frame_locals_address (struct frame_info *fi) -{ - return get_frame_base (fi); -} - -int -hppa_frame_num_args (struct frame_info *frame) -{ - /* We can't tell how many args there are now that the C compiler delays - popping them. */ - return -1; -} - -CORE_ADDR hppa_smash_text_address (CORE_ADDR addr) { /* The low two bits of the PC on the PA contain the privilege level. @@ -4993,6 +4887,16 @@ hppa_smash_text_address (CORE_ADDR addr) return (addr &= ~0x3); } +/* Get the ith function argument for the current function. */ +CORE_ADDR +hppa_fetch_pointer_argument (struct frame_info *frame, int argi, + struct type *type) +{ + CORE_ADDR addr; + frame_read_register (frame, R0_REGNUM + 26 - argi, &addr); + return addr; +} + static struct gdbarch * hppa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) { @@ -5035,13 +4939,13 @@ hppa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_fp0_regnum (gdbarch, 64); set_gdbarch_pc_regnum (gdbarch, PCOQ_HEAD_REGNUM); set_gdbarch_npc_regnum (gdbarch, PCOQ_TAIL_REGNUM); - set_gdbarch_register_raw_size (gdbarch, hppa_register_raw_size); + set_gdbarch_deprecated_register_raw_size (gdbarch, hppa_register_raw_size); set_gdbarch_deprecated_register_bytes (gdbarch, hppa_num_regs * 4); - set_gdbarch_register_byte (gdbarch, hppa_register_byte); - set_gdbarch_register_virtual_size (gdbarch, hppa_register_raw_size); + set_gdbarch_deprecated_register_byte (gdbarch, hppa_register_byte); + set_gdbarch_deprecated_register_virtual_size (gdbarch, hppa_register_raw_size); set_gdbarch_deprecated_max_register_raw_size (gdbarch, 4); set_gdbarch_deprecated_max_register_virtual_size (gdbarch, 8); - set_gdbarch_register_virtual_type (gdbarch, hppa_register_virtual_type); + set_gdbarch_deprecated_register_virtual_type (gdbarch, hppa_register_virtual_type); set_gdbarch_deprecated_store_struct_return (gdbarch, hppa_store_struct_return); set_gdbarch_deprecated_extract_return_value (gdbarch, hppa_extract_return_value); @@ -5056,9 +4960,6 @@ hppa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_frameless_function_invocation (gdbarch, hppa_frameless_function_invocation); set_gdbarch_deprecated_frame_saved_pc (gdbarch, hppa_frame_saved_pc); - set_gdbarch_frame_args_address (gdbarch, hppa_frame_args_address); - set_gdbarch_frame_locals_address (gdbarch, hppa_frame_locals_address); - set_gdbarch_frame_num_args (gdbarch, hppa_frame_num_args); set_gdbarch_frame_args_skip (gdbarch, 0); set_gdbarch_deprecated_push_dummy_frame (gdbarch, hppa_push_dummy_frame); set_gdbarch_deprecated_pop_frame (gdbarch, hppa_pop_frame); @@ -5071,6 +4972,9 @@ hppa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_write_pc (gdbarch, hppa_target_write_pc); set_gdbarch_deprecated_target_read_fp (gdbarch, hppa_target_read_fp); + /* Helper for function argument information. */ + set_gdbarch_fetch_pointer_argument (gdbarch, hppa_fetch_pointer_argument); + return gdbarch; } |