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* mips-tdep.c (find_proc_desc): Add cur_frame argument. Pass

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cur_frame to heuristic_proc_desc.
        (heuristic_proc_desc): Add cur_frame argument.  Do not read SP
        if cur_frame == 0.
        (after_prologue): Pass cur_frame == 0 to find_proc_desc.
        (mips_frame_chain): Pass cur_frame == 1 to find_proc_desc.
        (mips_init_extra_frame_info): Likewise.
This commit is contained in:
Daniel Jacobowitz 2001-11-19 23:15:31 +00:00
parent b572d65c66
commit 479412cd97
2 changed files with 30 additions and 10 deletions
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10
gdb/ChangeLog
View File

@ -1,3 +1,13 @@
2001-11-19 Daniel Jacobowitz <drow@mvista.com>
* mips-tdep.c (find_proc_desc): Add cur_frame argument. Pass
cur_frame to heuristic_proc_desc.
(heuristic_proc_desc): Add cur_frame argument. Do not read SP
if cur_frame == 0.
(after_prologue): Pass cur_frame == 0 to find_proc_desc.
(mips_frame_chain): Pass cur_frame == 1 to find_proc_desc.
(mips_init_extra_frame_info): Likewise.
2001-11-19 Andrew Cagney <ac131313@redhat.com>
* defs.h (return_to_top_level): Comment.

30
gdb/mips-tdep.c
View File

@ -239,7 +239,7 @@ int gdb_print_insn_mips (bfd_vma, disassemble_info *);
static void mips_print_register (int, int);
static mips_extra_func_info_t
heuristic_proc_desc (CORE_ADDR, CORE_ADDR, struct frame_info *);
heuristic_proc_desc (CORE_ADDR, CORE_ADDR, struct frame_info *, int);
static CORE_ADDR heuristic_proc_start (CORE_ADDR);
@ -252,7 +252,7 @@ static void mips_show_processor_type_command (char *, int);
static void reinit_frame_cache_sfunc (char *, int, struct cmd_list_element *);
static mips_extra_func_info_t
find_proc_desc (CORE_ADDR pc, struct frame_info *next_frame);
find_proc_desc (CORE_ADDR pc, struct frame_info *next_frame, int cur_frame);
static CORE_ADDR after_prologue (CORE_ADDR pc,
mips_extra_func_info_t proc_desc);
@ -561,8 +561,13 @@ after_prologue (CORE_ADDR pc,
struct symtab_and_line sal;
CORE_ADDR func_addr, func_end;
/* Pass cur_frame == 0 to find_proc_desc. We should not attempt
to read the stack pointer from the current machine state, because
the current machine state has nothing to do with the information
we need from the proc_desc; and the process may or may not exist
right now. */
if (!proc_desc)
proc_desc = find_proc_desc (pc, NULL);
proc_desc = find_proc_desc (pc, NULL, 0);
if (proc_desc)
{
@ -1858,9 +1863,14 @@ restart:
static mips_extra_func_info_t
heuristic_proc_desc (CORE_ADDR start_pc, CORE_ADDR limit_pc,
struct frame_info *next_frame)
struct frame_info *next_frame, int cur_frame)
{
CORE_ADDR sp = read_next_frame_reg (next_frame, SP_REGNUM);
CORE_ADDR sp;
if (cur_frame)
sp = read_next_frame_reg (next_frame, SP_REGNUM);
else
sp = 0;
if (start_pc == 0)
return NULL;
@ -1919,7 +1929,7 @@ non_heuristic_proc_desc (CORE_ADDR pc, CORE_ADDR *addrptr)
static mips_extra_func_info_t
find_proc_desc (CORE_ADDR pc, struct frame_info *next_frame)
find_proc_desc (CORE_ADDR pc, struct frame_info *next_frame, int cur_frame)
{
mips_extra_func_info_t proc_desc;
CORE_ADDR startaddr;
@ -1951,7 +1961,7 @@ find_proc_desc (CORE_ADDR pc, struct frame_info *next_frame)
{
mips_extra_func_info_t found_heuristic =
heuristic_proc_desc (PROC_LOW_ADDR (proc_desc),
pc, next_frame);
pc, next_frame, cur_frame);
if (found_heuristic)
proc_desc = found_heuristic;
}
@ -1975,7 +1985,7 @@ find_proc_desc (CORE_ADDR pc, struct frame_info *next_frame)
startaddr = heuristic_proc_start (pc);
proc_desc =
heuristic_proc_desc (startaddr, pc, next_frame);
heuristic_proc_desc (startaddr, pc, next_frame, cur_frame);
}
return proc_desc;
}
@ -2007,7 +2017,7 @@ mips_frame_chain (struct frame_info *frame)
saved_pc = tmp;
/* Look up the procedure descriptor for this PC. */
proc_desc = find_proc_desc (saved_pc, frame);
proc_desc = find_proc_desc (saved_pc, frame, 1);
if (!proc_desc)
return 0;
@ -2033,7 +2043,7 @@ mips_init_extra_frame_info (int fromleaf, struct frame_info *fci)
/* Use proc_desc calculated in frame_chain */
mips_extra_func_info_t proc_desc =
fci->next ? cached_proc_desc : find_proc_desc (fci->pc, fci->next);
fci->next ? cached_proc_desc : find_proc_desc (fci->pc, fci->next, 1);
fci->extra_info = (struct frame_extra_info *)
frame_obstack_alloc (sizeof (struct frame_extra_info));