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2002-04-24 David S. Miller <davem@redhat.com>

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* sparc-tdep.c (sparc_gdbarch_skip_prologue): Kill, duplicates
	sparc_skip_prologue.
	(sparc_skip_prologue): Kill frameless_p arg, and use line number
	information to find prologue when possible.
	(sparc_prologue_frameless_p): Call examine_prologue directly.
	(sparc_gdbarch_init): Update set_gdbarch_skip_prologue call.
	* config/sparc/tm-sparc.h (sparc_skip_prologue): Update for killed
	second argument.
	(SKIP_PROLOGUE): Likewise.
This commit is contained in:
David S. Miller 2002-04-26 01:56:04 +00:00
parent 15d72a927a
commit f510d44e69
3 changed files with 36 additions and 15 deletions
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12
gdb/ChangeLog
View file

@ -1,3 +1,15 @@
2002-04-24 David S. Miller <davem@redhat.com>
* sparc-tdep.c (sparc_gdbarch_skip_prologue): Kill, duplicates
sparc_skip_prologue.
(sparc_skip_prologue): Kill frameless_p arg, and use line number
information to find prologue when possible.
(sparc_prologue_frameless_p): Call examine_prologue directly.
(sparc_gdbarch_init): Update set_gdbarch_skip_prologue call.
* config/sparc/tm-sparc.h (sparc_skip_prologue): Update for killed
second argument.
(SKIP_PROLOGUE): Likewise.
2002-04-25 Jason Thorpe <thorpej@wasabisystems.com>
* alpha-tdep.c (alpha_skip_prologue_internal): Remove

4
gdb/config/sparc/tm-sparc.h
View file

@ -250,8 +250,8 @@ extern int sparc_intreg_size (void);
/* Advance PC across any function entry prologue instructions
to reach some "real" code. */
extern CORE_ADDR sparc_skip_prologue (CORE_ADDR, int);
#define SKIP_PROLOGUE(PC) sparc_skip_prologue (PC, 0)
extern CORE_ADDR sparc_skip_prologue (CORE_ADDR);
#define SKIP_PROLOGUE(PC) sparc_skip_prologue (PC)
/* Immediately after a function call, return the saved pc.
Can't go through the frames for this because on some machines

35
gdb/sparc-tdep.c
View file

@ -685,10 +685,28 @@ examine_prologue (CORE_ADDR start_pc, int frameless_p, struct frame_info *fi,
return pc;
}
/* Advance PC across any function entry prologue instructions to reach
some "real" code. */
CORE_ADDR
sparc_skip_prologue (CORE_ADDR start_pc, int frameless_p)
sparc_skip_prologue (CORE_ADDR start_pc)
{
return examine_prologue (start_pc, frameless_p, NULL, NULL);
struct symtab_and_line sal;
CORE_ADDR func_start, func_end;
/* This is the preferred method, find the end of the prologue by
using the debugging information. */
if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end))
{
sal = find_pc_line (func_start, 0);
if (sal.end < func_end
&& start_pc <= sal.end)
return sal.end;
}
/* Oh well, examine the code by hand. */
return examine_prologue (start_pc, 0, NULL, NULL);
}
/* Is the prologue at IP frameless? */
@ -696,7 +714,7 @@ sparc_skip_prologue (CORE_ADDR start_pc, int frameless_p)
int
sparc_prologue_frameless_p (CORE_ADDR ip)
{
return ip == sparc_skip_prologue (ip, 1);
return ip == examine_prologue (ip, 1, NULL, NULL);
}
/* Check instruction at ADDR to see if it is a branch.
@ -2784,15 +2802,6 @@ sparc64_register_byte (int regno)
return 64 * 8 + (regno - 80) * 8;
}
/* Advance PC across any function entry prologue instructions to reach
some "real" code. */
static CORE_ADDR
sparc_gdbarch_skip_prologue (CORE_ADDR ip)
{
return examine_prologue (ip, 0, NULL, NULL);
}
/* Immediately after a function call, return the saved pc.
Can't go through the frames for this because on some machines
the new frame is not set up until the new function executes
@ -2993,7 +3002,7 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_saved_pc_after_call (gdbarch, sparc_saved_pc_after_call);
set_gdbarch_prologue_frameless_p (gdbarch, sparc_prologue_frameless_p);
set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
set_gdbarch_skip_prologue (gdbarch, sparc_gdbarch_skip_prologue);
set_gdbarch_skip_prologue (gdbarch, sparc_skip_prologue);
set_gdbarch_sp_regnum (gdbarch, SPARC_SP_REGNUM);
set_gdbarch_use_generic_dummy_frames (gdbarch, 0);
set_gdbarch_write_pc (gdbarch, generic_target_write_pc);