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2004-06-21 Martin Hunt <hunt@redhat.com>

Browse Source 
Kevin Buettner <kevinb@redhat.com>

        * config/mips/tm-mips.h (SP_REGNUM): Delete define.
	* mips-tdep.h (MIPS_SP_REGNUM): Define.
	* mips-tdep.c (mips_gdbarch_init): Set SP_REGNUM via call
	to set_gdbarch_sp_regnum().  Use cooked register number.
        (SP_REGNUM): Replace all occurrences with MIPS_SP_REGNUM.
This commit is contained in:
Martin Hunt 2004-06-22 00:01:04 +00:00
parent c64ff40ad2
commit f10683bb26
4 changed files with 26 additions and 16 deletions
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9
gdb/ChangeLog
View File

@ -1,3 +1,12 @@
2004-06-21 Martin Hunt <hunt@redhat.com>
Kevin Buettner <kevinb@redhat.com>
* config/mips/tm-mips.h (SP_REGNUM): Delete define.
* mips-tdep.h (MIPS_SP_REGNUM): Define.
* mips-tdep.c (mips_gdbarch_init): Set SP_REGNUM via call
to set_gdbarch_sp_regnum(). Use cooked register number.
(SP_REGNUM): Replace all occurrences with MIPS_SP_REGNUM.
2004-06-21 Andrew Cagney <cagney@gnu.org>
* gdbarch.sh: When the macro field is empty, do not generate a

1
gdb/config/mips/tm-mips.h
View File

@ -56,7 +56,6 @@ extern int mips_step_skips_delay (CORE_ADDR);
#define V0_REGNUM 2 /* Function integer return value */
#define A0_REGNUM 4 /* Loc of first arg during a subr call */
#define T9_REGNUM 25 /* Contains address of callee in PIC */
#define SP_REGNUM 29 /* Contains address of top of stack */
#define RA_REGNUM 31 /* Contains return address value */
#define PS_REGNUM 32 /* Contains processor status */
#define UNUSED_REGNUM 73 /* Never used, FIXME */

31
gdb/mips-tdep.c
View File

@ -757,7 +757,7 @@ mips_register_type (struct gdbarch *gdbarch, int regnum)
static CORE_ADDR
mips_read_sp (void)
{
return read_signed_register (SP_REGNUM);
return read_signed_register (MIPS_SP_REGNUM);
}
/* Should the upper word of 64-bit addresses be zeroed? */
@ -849,7 +849,7 @@ mips_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
static struct frame_id
mips_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
{
return frame_id_build (frame_unwind_register_signed (next_frame, NUM_REGS + SP_REGNUM),
return frame_id_build (frame_unwind_register_signed (next_frame, NUM_REGS + MIPS_SP_REGNUM),
frame_pc_unwind (next_frame));
}
@ -880,7 +880,7 @@ after_prologue (CORE_ADDR pc, mips_extra_func_info_t proc_desc)
{
/* If function is frameless, then we need to do it the hard way. I
strongly suspect that frameless always means prologueless... */
if (PROC_FRAME_REG (proc_desc) == SP_REGNUM
if (PROC_FRAME_REG (proc_desc) == MIPS_SP_REGNUM
&& PROC_FRAME_OFFSET (proc_desc) == 0)
return 0;
}
@ -1683,7 +1683,7 @@ mips_mdebug_frame_cache (struct frame_info *next_frame, void **this_cache)
}
/* SP_REGNUM, contains the value and not the address. */
trad_frame_set_value (cache->saved_regs, NUM_REGS + SP_REGNUM, cache->base);
trad_frame_set_value (cache->saved_regs, NUM_REGS + MIPS_SP_REGNUM, cache->base);
return (*this_cache);
}
@ -1756,8 +1756,8 @@ read_next_frame_reg (struct frame_info *fi, int regno)
regcache_cooked_read_signed (current_regcache, regno, &val);
return val;
}
else if ((regno % NUM_REGS) == SP_REGNUM)
/* The SP_REGNUM is special, its value is stored in saved_regs.
else if ((regno % NUM_REGS) == MIPS_SP_REGNUM)
/* MIPS_SP_REGNUM is special, its value is stored in saved_regs.
In fact, it is so special that it can even only be fetched
using a raw register number! Once this code as been converted
to frame-unwind the problem goes away. */
@ -2194,7 +2194,7 @@ mips32_heuristic_proc_desc (CORE_ADDR start_pc, CORE_ADDR limit_pc,
/* Old gcc frame, r30 is virtual frame pointer. */
if ((long) low_word != PROC_FRAME_OFFSET (&temp_proc_desc))
frame_addr = sp + low_word;
else if (PROC_FRAME_REG (&temp_proc_desc) == SP_REGNUM)
else if (PROC_FRAME_REG (&temp_proc_desc) == MIPS_SP_REGNUM)
{
unsigned alloca_adjust;
PROC_FRAME_REG (&temp_proc_desc) = 30;
@ -2217,7 +2217,7 @@ mips32_heuristic_proc_desc (CORE_ADDR start_pc, CORE_ADDR limit_pc,
else if (inst == 0x03A0F021 || inst == 0x03a0f025 || inst == 0x03a0f02d)
{
/* New gcc frame, virtual frame pointer is at r30 + frame_size. */
if (PROC_FRAME_REG (&temp_proc_desc) == SP_REGNUM)
if (PROC_FRAME_REG (&temp_proc_desc) == MIPS_SP_REGNUM)
{
unsigned alloca_adjust;
PROC_FRAME_REG (&temp_proc_desc) = 30;
@ -2249,7 +2249,7 @@ heuristic_proc_desc (CORE_ADDR start_pc, CORE_ADDR limit_pc,
CORE_ADDR sp;
if (cur_frame)
sp = read_next_frame_reg (next_frame, NUM_REGS + SP_REGNUM);
sp = read_next_frame_reg (next_frame, NUM_REGS + MIPS_SP_REGNUM);
else
sp = 0;
@ -2259,7 +2259,7 @@ heuristic_proc_desc (CORE_ADDR start_pc, CORE_ADDR limit_pc,
temp_saved_regs = xrealloc (temp_saved_regs, SIZEOF_FRAME_SAVED_REGS);
memset (temp_saved_regs, '\0', SIZEOF_FRAME_SAVED_REGS);
PROC_LOW_ADDR (&temp_proc_desc) = start_pc;
PROC_FRAME_REG (&temp_proc_desc) = SP_REGNUM;
PROC_FRAME_REG (&temp_proc_desc) = MIPS_SP_REGNUM;
PROC_PC_REG (&temp_proc_desc) = RA_REGNUM;
if (start_pc + 200 < limit_pc)
@ -3026,7 +3026,7 @@ mips_eabi_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
fprintf_unfiltered (gdb_stdlog, "\n");
}
regcache_cooked_write_signed (regcache, SP_REGNUM, sp);
regcache_cooked_write_signed (regcache, MIPS_SP_REGNUM, sp);
/* Return adjusted stack pointer. */
return sp;
@ -3312,7 +3312,7 @@ mips_n32n64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
fprintf_unfiltered (gdb_stdlog, "\n");
}
regcache_cooked_write_signed (regcache, SP_REGNUM, sp);
regcache_cooked_write_signed (regcache, MIPS_SP_REGNUM, sp);
/* Return adjusted stack pointer. */
return sp;
@ -3727,7 +3727,7 @@ mips_o32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
fprintf_unfiltered (gdb_stdlog, "\n");
}
regcache_cooked_write_signed (regcache, SP_REGNUM, sp);
regcache_cooked_write_signed (regcache, MIPS_SP_REGNUM, sp);
/* Return adjusted stack pointer. */
return sp;
@ -4181,7 +4181,7 @@ mips_o64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
fprintf_unfiltered (gdb_stdlog, "\n");
}
regcache_cooked_write_signed (regcache, SP_REGNUM, sp);
regcache_cooked_write_signed (regcache, MIPS_SP_REGNUM, sp);
/* Return adjusted stack pointer. */
return sp;
@ -5612,7 +5612,8 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
}
/* FIXME: cagney/2003-11-15: For MIPS, hasn't PC_REGNUM been
replaced by read_pc? */
set_gdbarch_pc_regnum (gdbarch, regnum->pc);
set_gdbarch_pc_regnum (gdbarch, regnum->pc + num_regs);
set_gdbarch_sp_regnum (gdbarch, MIPS_SP_REGNUM + num_regs);
set_gdbarch_fp0_regnum (gdbarch, regnum->fp0);
set_gdbarch_num_regs (gdbarch, num_regs);
set_gdbarch_num_pseudo_regs (gdbarch, num_regs);

1
gdb/mips-tdep.h
View File

@ -62,6 +62,7 @@ struct mips_regnum
extern const struct mips_regnum *mips_regnum (struct gdbarch *gdbarch);
enum {
MIPS_SP_REGNUM = 29,
MIPS_EMBED_LO_REGNUM = 33,
MIPS_EMBED_HI_REGNUM = 34,
MIPS_EMBED_BADVADDR_REGNUM = 35,