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2003-04-14 Andrew Cagney <cagney@redhat.com>

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* mips-tdep.c (mips_push_dummy_frame): Delete function.
	(MASK, PUSH_FP_REGNUM, GEN_REG_SAVE_MASK): Delete macros.
	(FLOAT_REG_SAVE_MASK, FLOAT_SINGLE_REG_SAVE_MASK): Delete macro.
	(mips_push_register): Delete function.
	(mips_dump_tdep): Delete references to GEN_REG_SAVE_MASK and
	PUSH_FP_REGNUM.
This commit is contained in:
Andrew Cagney
2003-04-14 19:06:48 +00:00
parent 44ea7b70f9
commit 36712a20aa
2 changed files with 9 additions and 111 deletions
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9
gdb/ChangeLog
View File

@ -1,3 +1,12 @@
2003-04-14 Andrew Cagney <cagney@redhat.com>
* mips-tdep.c (mips_push_dummy_frame): Delete function.
(MASK, PUSH_FP_REGNUM, GEN_REG_SAVE_MASK): Delete macros.
(FLOAT_REG_SAVE_MASK, FLOAT_SINGLE_REG_SAVE_MASK): Delete macro.
(mips_push_register): Delete function.
(mips_dump_tdep): Delete references to GEN_REG_SAVE_MASK and
PUSH_FP_REGNUM.
2003-04-14 Jim Blandy <jimb@redhat.com> 2003-04-14 Jim Blandy <jimb@redhat.com>
* symmisc.c: #include "gdb_regex.h". * symmisc.c: #include "gdb_regex.h".

111
gdb/mips-tdep.c
View File

@ -3747,111 +3747,6 @@ mips_push_return_address (CORE_ADDR pc, CORE_ADDR sp)
return sp; return sp;
} }
static void
mips_push_register (CORE_ADDR * sp, int regno)
{
char *buffer = alloca (MAX_REGISTER_RAW_SIZE);
int regsize;
int offset;
if (MIPS_SAVED_REGSIZE < REGISTER_RAW_SIZE (regno))
{
regsize = MIPS_SAVED_REGSIZE;
offset = (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG
? REGISTER_RAW_SIZE (regno) - MIPS_SAVED_REGSIZE
: 0);
}
else
{
regsize = REGISTER_RAW_SIZE (regno);
offset = 0;
}
*sp -= regsize;
deprecated_read_register_gen (regno, buffer);
write_memory (*sp, buffer + offset, regsize);
}
/* MASK(i,j) == (1<<i) + (1<<(i+1)) + ... + (1<<j)). Assume i<=j<(MIPS_NUMREGS-1). */
#define MASK(i,j) (((1 << ((j)+1))-1) ^ ((1 << (i))-1))
static void
mips_push_dummy_frame (void)
{
int ireg;
struct linked_proc_info *link = (struct linked_proc_info *)
xmalloc (sizeof (struct linked_proc_info));
mips_extra_func_info_t proc_desc = &link->info;
CORE_ADDR sp = ADDR_BITS_REMOVE (read_signed_register (SP_REGNUM));
CORE_ADDR old_sp = sp;
link->next = linked_proc_desc_table;
linked_proc_desc_table = link;
/* FIXME! are these correct ? */
#define PUSH_FP_REGNUM 16 /* must be a register preserved across calls */
#define GEN_REG_SAVE_MASK MASK(1,16)|MASK(24,28)|(1<<(MIPS_NUMREGS-1))
#define FLOAT_REG_SAVE_MASK MASK(0,19)
#define FLOAT_SINGLE_REG_SAVE_MASK \
((1<<18)|(1<<16)|(1<<14)|(1<<12)|(1<<10)|(1<<8)|(1<<6)|(1<<4)|(1<<2)|(1<<0))
/*
* The registers we must save are all those not preserved across
* procedure calls. Dest_Reg (see tm-mips.h) must also be saved.
* In addition, we must save the PC, PUSH_FP_REGNUM, MMLO/-HI
* and FP Control/Status registers.
*
*
* Dummy frame layout:
* (high memory)
* Saved PC
* Saved MMHI, MMLO, FPC_CSR
* Saved R31
* Saved R28
* ...
* Saved R1
* Saved D18 (i.e. F19, F18)
* ...
* Saved D0 (i.e. F1, F0)
* Argument build area and stack arguments written via mips_push_arguments
* (low memory)
*/
/* Save special registers (PC, MMHI, MMLO, FPC_CSR) */
PROC_FRAME_REG (proc_desc) = PUSH_FP_REGNUM;
PROC_FRAME_OFFSET (proc_desc) = 0;
PROC_FRAME_ADJUST (proc_desc) = 0;
mips_push_register (&sp, PC_REGNUM);
mips_push_register (&sp, HI_REGNUM);
mips_push_register (&sp, LO_REGNUM);
mips_push_register (&sp, MIPS_FPU_TYPE == MIPS_FPU_NONE ? 0 : FCRCS_REGNUM);
/* Save general CPU registers */
PROC_REG_MASK (proc_desc) = GEN_REG_SAVE_MASK;
/* PROC_REG_OFFSET is the offset of the first saved register from FP. */
PROC_REG_OFFSET (proc_desc) = sp - old_sp - MIPS_SAVED_REGSIZE;
for (ireg = 32; --ireg >= 0;)
if (PROC_REG_MASK (proc_desc) & (1 << ireg))
mips_push_register (&sp, ireg);
/* Save floating point registers starting with high order word */
PROC_FREG_MASK (proc_desc) =
MIPS_FPU_TYPE == MIPS_FPU_DOUBLE ? FLOAT_REG_SAVE_MASK
: MIPS_FPU_TYPE == MIPS_FPU_SINGLE ? FLOAT_SINGLE_REG_SAVE_MASK : 0;
/* PROC_FREG_OFFSET is the offset of the first saved *double* register
from FP. */
PROC_FREG_OFFSET (proc_desc) = sp - old_sp - 8;
for (ireg = 32; --ireg >= 0;)
if (PROC_FREG_MASK (proc_desc) & (1 << ireg))
mips_push_register (&sp, ireg + FP0_REGNUM);
/* Update the frame pointer for the call dummy and the stack pointer.
Set the procedure's starting and ending addresses to point to the
call dummy address at the entry point. */
write_register (PUSH_FP_REGNUM, old_sp);
write_register (SP_REGNUM, sp);
PROC_LOW_ADDR (proc_desc) = CALL_DUMMY_ADDRESS ();
PROC_HIGH_ADDR (proc_desc) = CALL_DUMMY_ADDRESS () + 4;
SET_PROC_DESC_IS_DUMMY (proc_desc);
PROC_PC_REG (proc_desc) = RA_REGNUM;
}
static void static void
mips_pop_frame (void) mips_pop_frame (void)
{ {
@ -6238,9 +6133,6 @@ mips_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
fprintf_unfiltered (file, fprintf_unfiltered (file,
"mips_dump_tdep: GDB_TARGET_IS_MIPS64 = %d\n", "mips_dump_tdep: GDB_TARGET_IS_MIPS64 = %d\n",
GDB_TARGET_IS_MIPS64); GDB_TARGET_IS_MIPS64);
fprintf_unfiltered (file,
"mips_dump_tdep: GEN_REG_SAVE_MASK = %d\n",
GEN_REG_SAVE_MASK);
fprintf_unfiltered (file, fprintf_unfiltered (file,
"mips_dump_tdep: HAVE_NONSTEPPABLE_WATCHPOINT # %s\n", "mips_dump_tdep: HAVE_NONSTEPPABLE_WATCHPOINT # %s\n",
XSTRING (HAVE_NONSTEPPABLE_WATCHPOINT)); XSTRING (HAVE_NONSTEPPABLE_WATCHPOINT));
@ -6354,9 +6246,6 @@ mips_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
fprintf_unfiltered (file, fprintf_unfiltered (file,
"mips_dump_tdep: PS_REGNUM = %d\n", "mips_dump_tdep: PS_REGNUM = %d\n",
PS_REGNUM); PS_REGNUM);
fprintf_unfiltered (file,
"mips_dump_tdep: PUSH_FP_REGNUM = %d\n",
PUSH_FP_REGNUM);
fprintf_unfiltered (file, fprintf_unfiltered (file,
"mips_dump_tdep: RA_REGNUM = %d\n", "mips_dump_tdep: RA_REGNUM = %d\n",
RA_REGNUM); RA_REGNUM);