{
CORE_ADDR func_start;
struct rs6000_framedata fdata;
- int wordsize = TDEP->wordsize;
+ struct gdbarch_tdep *tdep = TDEP;
+ int wordsize = tdep->wordsize;
if (fi->signal_handler_caller)
return read_memory_addr (fi->frame + SIG_FRAME_PC_OFFSET, wordsize);
return read_memory_addr (fi->next->frame + SIG_FRAME_LR_OFFSET,
wordsize);
else
- return read_memory_addr (FRAME_CHAIN (fi) + DEFAULT_LR_SAVE,
+ return read_memory_addr (FRAME_CHAIN (fi) + tdep->lr_frame_offset,
wordsize);
}
return fi->extra_info->initial_sp;
}
- /* This function has an alloca register. If this is the top-most frame
- (with the lowest address), the value in alloca register is good. */
-
- if (!fi->next)
- return fi->extra_info->initial_sp = read_register (fdata.alloca_reg);
-
- /* Otherwise, this is a caller frame. Callee has usually already saved
- registers, but there are exceptions (such as when the callee
- has no parameters). Find the address in which caller's alloca
- register is saved. */
-
- for (callee_fi = fi->next; callee_fi; callee_fi = callee_fi->next)
- {
-
- if (!callee_fi->saved_regs)
- frame_get_saved_regs (callee_fi, NULL);
-
- /* this is the address in which alloca register is saved. */
-
- tmpaddr = callee_fi->saved_regs[fdata.alloca_reg];
- if (tmpaddr)
- {
- fi->extra_info->initial_sp =
- read_memory_addr (tmpaddr, TDEP->wordsize);
- return fi->extra_info->initial_sp;
- }
-
- /* Go look into deeper levels of the frame chain to see if any one of
- the callees has saved alloca register. */
- }
-
- /* If alloca register was not saved, by the callee (or any of its callees)
- then the value in the register is still good. */
-
- fi->extra_info->initial_sp = read_register (fdata.alloca_reg);
+ /* There is an alloca register, use its value, in the current frame,
+ as the initial stack pointer. */
+ {
+ char *tmpbuf = alloca (MAX_REGISTER_RAW_SIZE);
+ if (frame_register_read (fi, fdata.alloca_reg, tmpbuf))
+ {
+ fi->extra_info->initial_sp
+ = extract_unsigned_integer (tmpbuf,
+ REGISTER_RAW_SIZE (fdata.alloca_reg));
+ }
+ else
+ /* NOTE: cagney/2002-04-17: At present the only time
+ frame_register_read will fail is when the register isn't
+ available. If that does happen, use the frame. */
+ fi->extra_info->initial_sp = fi->frame;
+ }
return fi->extra_info->initial_sp;
}
print_spaces_filtered (15 - strlen (REGISTER_NAME (i)), gdb_stdout);
/* Get the data in raw format. */
- if (read_relative_register_raw_bytes (i, raw_buffer))
+ if (!frame_register_read (selected_frame, i, raw_buffer))
{
printf_filtered ("*value not available*\n");
continue;
print_spaces_filtered (15 - strlen (REGISTER_NAME (i)), gdb_stdout);
/* Get the data in raw format. */
- if (read_relative_register_raw_bytes (i, raw_buffer))
+ if (!frame_register_read (selected_frame, i, raw_buffer))
{
printf_filtered ("*value not available*\n");
continue;
/* UISA-level SPRs for PowerPC. */
#define PPC_UISA_SPRS \
- /* 66 */ R4(cr), R(lr), R(ctr), R4(xer), R0
+ /* 66 */ R4(cr), R(lr), R(ctr), R4(xer), R4(fpscr)
/* Segment registers, for PowerPC. */
#define PPC_SEGMENT_REGS \
static const struct reg registers_power[] =
{
COMMON_UISA_REGS,
- /* 66 */ R4(cnd), R(lr), R(cnt), R4(xer), R4(mq)
+ /* 66 */ R4(cnd), R(lr), R(cnt), R4(xer), R4(mq),
+ /* 71 */ R4(fpscr)
};
/* PowerPC UISA - a PPC processor as viewed by user-level code. A UISA-only
{"7400", "Motorola/IBM PowerPC 7400 (G4)", bfd_arch_powerpc,
bfd_mach_ppc_7400, num_registers (registers_7400), registers_7400},
- /* FIXME: I haven't checked the register sets of the following. */
+ /* 64-bit */
+ {"powerpc64", "PowerPC 64-bit user-level", bfd_arch_powerpc,
+ bfd_mach_ppc64, num_registers (registers_powerpc), registers_powerpc},
{"620", "Motorola PowerPC 620", bfd_arch_powerpc,
bfd_mach_ppc_620, num_registers (registers_powerpc), registers_powerpc},
+ {"630", "Motorola PowerPC 630", bfd_arch_powerpc,
+ bfd_mach_ppc_630, num_registers (registers_powerpc), registers_powerpc},
{"a35", "PowerPC A35", bfd_arch_powerpc,
bfd_mach_ppc_a35, num_registers (registers_powerpc), registers_powerpc},
+ {"rs64ii", "PowerPC rs64ii", bfd_arch_powerpc,
+ bfd_mach_ppc_rs64ii, num_registers (registers_powerpc), registers_powerpc},
+ {"rs64iii", "PowerPC rs64iii", bfd_arch_powerpc,
+ bfd_mach_ppc_rs64iii, num_registers (registers_powerpc), registers_powerpc},
+
+ /* FIXME: I haven't checked the register sets of the following. */
{"rs1", "IBM POWER RS1", bfd_arch_rs6000,
bfd_mach_rs6k_rs1, num_registers (registers_power), registers_power},
{"rsc", "IBM POWER RSC", bfd_arch_rs6000,
}
else
{
- wordsize = 4;
+ if (info.bfd_arch_info != NULL && info.bfd_arch_info->bits_per_word != 0)
+ wordsize = info.bfd_arch_info->bits_per_word /
+ info.bfd_arch_info->bits_per_byte;
+ else
+ wordsize = 4;
}
/* Find a candidate among extant architectures. */
tdep->ppc_xer_regnum = 69;
if (v->mach == bfd_mach_ppc_601)
tdep->ppc_mq_regnum = 124;
- else
+ else if (power)
tdep->ppc_mq_regnum = 70;
+ else
+ tdep->ppc_mq_regnum = -1;
+ tdep->ppc_fpscr_regnum = power ? 71 : 70;
if (v->arch == bfd_arch_powerpc)
switch (v->mach)
break;
}
- /* Calculate byte offsets in raw register array. */
+ /* Set lr_frame_offset. */
+ if (wordsize == 8)
+ tdep->lr_frame_offset = 16;
+ else if (sysv_abi)
+ tdep->lr_frame_offset = 4;
+ else
+ tdep->lr_frame_offset = 8;
+
+ /* Calculate byte offsets in raw register array. */
tdep->regoff = xmalloc (v->nregs * sizeof (int));
for (i = off = 0; i < v->nregs; i++)
{
set_gdbarch_extract_return_value (gdbarch, rs6000_extract_return_value);
- if (sysv_abi)
+ /* 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
+ fairly certain that ppc_sysv_abi_push_arguments() will give even
+ worse results since it only works for 32-bit code. So, for the moment,
+ we're better off calling rs6000_push_arguments() since it works for
+ 64-bit code. At some point in the future, this matter needs to be
+ revisited. */
+ if (sysv_abi && wordsize == 4)
set_gdbarch_push_arguments (gdbarch, ppc_sysv_abi_push_arguments);
else
set_gdbarch_push_arguments (gdbarch, rs6000_push_arguments);
}
set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
- if (osabi == ELFOSABI_LINUX)
+ /* Note: kevinb/2002-04-12: See note above regarding *_push_arguments().
+ The same remarks hold for the methods below. */
+ if (osabi == ELFOSABI_LINUX && wordsize == 4)
{
set_gdbarch_frameless_function_invocation (gdbarch,
ppc_linux_frameless_function_invocation);
projects / binutils.git / blobdiff