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
mips_pop_frame (void)
{
fprintf_unfiltered (file,
"mips_dump_tdep: GDB_TARGET_IS_MIPS64 = %d\n",
GDB_TARGET_IS_MIPS64);
- fprintf_unfiltered (file,
- "mips_dump_tdep: GEN_REG_SAVE_MASK = %d\n",
- GEN_REG_SAVE_MASK);
fprintf_unfiltered (file,
"mips_dump_tdep: HAVE_NONSTEPPABLE_WATCHPOINT # %s\n",
XSTRING (HAVE_NONSTEPPABLE_WATCHPOINT));
fprintf_unfiltered (file,
"mips_dump_tdep: PS_REGNUM = %d\n",
PS_REGNUM);
- fprintf_unfiltered (file,
- "mips_dump_tdep: PUSH_FP_REGNUM = %d\n",
- PUSH_FP_REGNUM);
fprintf_unfiltered (file,
"mips_dump_tdep: RA_REGNUM = %d\n",
RA_REGNUM);