return read_register (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum);
}
+/* Get the ith function argument for the current function. */
+static CORE_ADDR
+rs6000_fetch_pointer_argument (struct frame_info *frame, int argi,
+ struct type *type)
+{
+ CORE_ADDR addr;
+ frame_read_register (frame, 3 + argi, &addr);
+ return addr;
+}
+
/* Calculate the destination of a branch/jump. Return -1 if not a branch. */
static CORE_ADDR
/* Sequence of bytes for breakpoint instruction. */
-#define BIG_BREAKPOINT { 0x7d, 0x82, 0x10, 0x08 }
-#define LITTLE_BREAKPOINT { 0x08, 0x10, 0x82, 0x7d }
-
const static unsigned char *
rs6000_breakpoint_from_pc (CORE_ADDR *bp_addr, int *bp_size)
{
- static unsigned char big_breakpoint[] = BIG_BREAKPOINT;
- static unsigned char little_breakpoint[] = LITTLE_BREAKPOINT;
+ static unsigned char big_breakpoint[] = { 0x7d, 0x82, 0x10, 0x08 };
+ static unsigned char little_breakpoint[] = { 0x08, 0x10, 0x82, 0x7d };
*bp_size = 4;
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
return big_breakpoint;
if ((op & 0xfc1fffff) == 0x7c0802a6)
{ /* mflr Rx */
- lr_reg = (op & 0x03e00000) | 0x90010000;
+ lr_reg = (op & 0x03e00000);
continue;
}
else if ((op & 0xfc1fffff) == 0x7c000026)
{ /* mfcr Rx */
- cr_reg = (op & 0x03e00000) | 0x90010000;
+ cr_reg = (op & 0x03e00000);
continue;
}
{
fdata->saved_gpr = reg;
if ((op & 0xfc1f0003) == 0xf8010000)
- op = (op >> 1) << 1;
+ op &= ~3UL;
fdata->gpr_offset = SIGNED_SHORT (op) + offset;
}
continue;
continue;
}
- else if (lr_reg != -1 && (op & 0xffff0000) == lr_reg)
- { /* st Rx,NUM(r1)
- where Rx == lr */
- fdata->lr_offset = SIGNED_SHORT (op) + offset;
+ else if (lr_reg != -1 &&
+ /* std Rx, NUM(r1) || stdu Rx, NUM(r1) */
+ (((op & 0xffff0000) == (lr_reg | 0xf8010000)) ||
+ /* stw Rx, NUM(r1) */
+ ((op & 0xffff0000) == (lr_reg | 0x90010000)) ||
+ /* stwu Rx, NUM(r1) */
+ ((op & 0xffff0000) == (lr_reg | 0x94010000))))
+ { /* where Rx == lr */
+ fdata->lr_offset = offset;
fdata->nosavedpc = 0;
lr_reg = 0;
+ if ((op & 0xfc000003) == 0xf8000000 || /* std */
+ (op & 0xfc000000) == 0x90000000) /* stw */
+ {
+ /* Does not update r1, so add displacement to lr_offset. */
+ fdata->lr_offset += SIGNED_SHORT (op);
+ }
continue;
}
- else if (cr_reg != -1 && (op & 0xffff0000) == cr_reg)
- { /* st Rx,NUM(r1)
- where Rx == cr */
- fdata->cr_offset = SIGNED_SHORT (op) + offset;
+ else if (cr_reg != -1 &&
+ /* std Rx, NUM(r1) || stdu Rx, NUM(r1) */
+ (((op & 0xffff0000) == (cr_reg | 0xf8010000)) ||
+ /* stw Rx, NUM(r1) */
+ ((op & 0xffff0000) == (cr_reg | 0x90010000)) ||
+ /* stwu Rx, NUM(r1) */
+ ((op & 0xffff0000) == (cr_reg | 0x94010000))))
+ { /* where Rx == cr */
+ fdata->cr_offset = offset;
cr_reg = 0;
+ if ((op & 0xfc000003) == 0xf8000000 ||
+ (op & 0xfc000000) == 0x90000000)
+ {
+ /* Does not update r1, so add displacement to cr_offset. */
+ fdata->cr_offset += SIGNED_SHORT (op);
+ }
continue;
}
this branch */
continue;
- /* update stack pointer */
}
- else if ((op & 0xffff0000) == 0x94210000 || /* stu r1,NUM(r1) */
- (op & 0xffff0003) == 0xf8210001) /* stdu r1,NUM(r1) */
- {
+ /* update stack pointer */
+ else if ((op & 0xfc1f0000) == 0x94010000)
+ { /* stu rX,NUM(r1) || stwu rX,NUM(r1) */
fdata->frameless = 0;
- if ((op & 0xffff0003) == 0xf8210001)
- op = (op >> 1) << 1;
fdata->offset = SIGNED_SHORT (op);
offset = fdata->offset;
continue;
-
}
- else if (op == 0x7c21016e)
- { /* stwux 1,1,0 */
+ else if ((op & 0xfc1f016a) == 0x7c01016e)
+ { /* stwux rX,r1,rY */
+ /* no way to figure out what r1 is going to be */
fdata->frameless = 0;
offset = fdata->offset;
continue;
-
- /* Load up minimal toc pointer */
}
- else if ((op >> 22) == 0x20f
+ else if ((op & 0xfc1f0003) == 0xf8010001)
+ { /* stdu rX,NUM(r1) */
+ fdata->frameless = 0;
+ fdata->offset = SIGNED_SHORT (op & ~3UL);
+ offset = fdata->offset;
+ continue;
+ }
+ else if ((op & 0xfc1f016a) == 0x7c01016a)
+ { /* stdux rX,r1,rY */
+ /* no way to figure out what r1 is going to be */
+ fdata->frameless = 0;
+ offset = fdata->offset;
+ continue;
+ }
+ /* Load up minimal toc pointer */
+ else if (((op >> 22) == 0x20f || /* l r31,... or l r30,... */
+ (op >> 22) == 0x3af) /* ld r31,... or ld r30,... */
&& !minimal_toc_loaded)
- { /* l r31,... or l r30,... */
+ {
minimal_toc_loaded = 1;
continue;
}
/* Make sure that all registers are valid. */
- deprecated_read_register_bytes (0, NULL, REGISTER_BYTES);
+ deprecated_read_register_bytes (0, NULL, DEPRECATED_REGISTER_BYTES);
/* Figure out previous %pc value. If the function is frameless, it is
still in the link register, otherwise walk the frames and retrieve the
int size = regsize (reg, tdep->wordsize);
switch (size)
{
+ case 0:
+ return builtin_type_int0;
+ case 4:
+ return builtin_type_int32;
case 8:
if (tdep->ppc_ev0_regnum <= n && n <= tdep->ppc_ev31_regnum)
return builtin_type_vec64;
return builtin_type_vec128;
break;
default:
- return builtin_type_int32;
- break;
+ internal_error (__FILE__, __LINE__, "Register %d size %d unknown",
+ n, size);
}
}
}
static void
rs6000_register_convert_to_raw (struct type *type, int n,
- char *from, char *to)
+ const char *from, char *to)
{
if (TYPE_LENGTH (type) != REGISTER_RAW_SIZE (n))
{
/* Return real function address if ADDR (a function pointer) is in the data
space and is therefore a special function pointer. */
-CORE_ADDR
+static CORE_ADDR
rs6000_convert_from_func_ptr_addr (CORE_ADDR addr)
{
struct obj_section *s;
else
set_gdbarch_print_insn (gdbarch, gdb_print_insn_powerpc);
- set_gdbarch_read_pc (gdbarch, generic_target_read_pc);
set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
- set_gdbarch_read_sp (gdbarch, generic_target_read_sp);
- set_gdbarch_deprecated_dummy_write_sp (gdbarch, generic_target_write_sp);
+ set_gdbarch_deprecated_dummy_write_sp (gdbarch, deprecated_write_sp);
set_gdbarch_num_regs (gdbarch, v->nregs);
set_gdbarch_num_pseudo_regs (gdbarch, v->npregs);
set_gdbarch_register_name (gdbarch, rs6000_register_name);
set_gdbarch_deprecated_register_size (gdbarch, wordsize);
- set_gdbarch_register_bytes (gdbarch, off);
- set_gdbarch_register_byte (gdbarch, rs6000_register_byte);
- set_gdbarch_register_raw_size (gdbarch, rs6000_register_raw_size);
+ set_gdbarch_deprecated_register_bytes (gdbarch, off);
+ set_gdbarch_deprecated_register_byte (gdbarch, rs6000_register_byte);
+ set_gdbarch_deprecated_register_raw_size (gdbarch, rs6000_register_raw_size);
set_gdbarch_deprecated_max_register_raw_size (gdbarch, 16);
- set_gdbarch_register_virtual_size (gdbarch, generic_register_size);
+ set_gdbarch_deprecated_register_virtual_size (gdbarch, generic_register_size);
set_gdbarch_deprecated_max_register_virtual_size (gdbarch, 16);
- set_gdbarch_register_virtual_type (gdbarch, rs6000_register_virtual_type);
+ set_gdbarch_deprecated_register_virtual_type (gdbarch, rs6000_register_virtual_type);
set_gdbarch_ptr_bit (gdbarch, wordsize * TARGET_CHAR_BIT);
set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
set_gdbarch_deprecated_fix_call_dummy (gdbarch, rs6000_fix_call_dummy);
set_gdbarch_frame_align (gdbarch, rs6000_frame_align);
- set_gdbarch_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos);
+ if (sysv_abi && wordsize == 8)
+ /* PPC64 SYSV. */
+ set_gdbarch_frame_red_zone_size (gdbarch, 288);
+ else if (!sysv_abi && wordsize == 4)
+ /* PowerOpen / AIX 32 bit. */
+ set_gdbarch_frame_red_zone_size (gdbarch, 220);
+ set_gdbarch_deprecated_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos);
set_gdbarch_deprecated_push_return_address (gdbarch, ppc_push_return_address);
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
- set_gdbarch_register_convertible (gdbarch, rs6000_register_convertible);
- set_gdbarch_register_convert_to_virtual (gdbarch, rs6000_register_convert_to_virtual);
- set_gdbarch_register_convert_to_raw (gdbarch, rs6000_register_convert_to_raw);
+ set_gdbarch_deprecated_register_convertible (gdbarch, rs6000_register_convertible);
+ set_gdbarch_deprecated_register_convert_to_virtual (gdbarch, rs6000_register_convert_to_virtual);
+ set_gdbarch_deprecated_register_convert_to_raw (gdbarch, rs6000_register_convert_to_raw);
set_gdbarch_stab_reg_to_regnum (gdbarch, rs6000_stab_reg_to_regnum);
/* Note: kevinb/2002-04-12: I'm not convinced that rs6000_push_arguments()
is correct for the SysV ABI when the wordsize is 8, but I'm also
set_gdbarch_convert_from_func_ptr_addr (gdbarch,
rs6000_convert_from_func_ptr_addr);
}
- set_gdbarch_frame_args_address (gdbarch, rs6000_frame_args_address);
- set_gdbarch_frame_locals_address (gdbarch, rs6000_frame_args_address);
+ set_gdbarch_deprecated_frame_args_address (gdbarch, rs6000_frame_args_address);
+ set_gdbarch_deprecated_frame_locals_address (gdbarch, rs6000_frame_args_address);
set_gdbarch_deprecated_saved_pc_after_call (gdbarch, rs6000_saved_pc_after_call);
- /* We can't tell how many args there are
- now that the C compiler delays popping them. */
- set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
+ /* Helpers for function argument information. */
+ set_gdbarch_fetch_pointer_argument (gdbarch, rs6000_fetch_pointer_argument);
/* Hook in ABI-specific overrides, if they have been registered. */
gdbarch_init_osabi (info, gdbarch);
/* Initialization code. */
+extern initialize_file_ftype _initialize_rs6000_tdep; /* -Wmissing-prototypes */
+
void
_initialize_rs6000_tdep (void)
{
projects / deliverable / binutils-gdb.git / blobdiff