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2004-01-07 Andrew Cagney <cagney@redhat.com>

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* mips-tdep.c (mips_gdbarch_init): Move code determining the MIPS
	FPU to the start, check the MIPS FPU when looking for an old
	architecture.
	(set_mipsfpu_single_command): Update the architecture.
	(set_mipsfpu_double_command, set_mipsfpu_none_command): Ditto.
This commit is contained in:
Andrew Cagney 2004-01-08 04:57:38 +00:00
parent 480d3dd25b
commit 8d5838b592
2 changed files with 60 additions and 25 deletions
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6
gdb/ChangeLog
View file

@ -1,5 +1,11 @@
2004-01-07 Andrew Cagney <cagney@redhat.com>
* mips-tdep.c (mips_gdbarch_init): Move code determining the MIPS
FPU to the start, check the MIPS FPU when looking for an old
architecture.
(set_mipsfpu_single_command): Update the architecture.
(set_mipsfpu_double_command, set_mipsfpu_none_command): Ditto.
* mips-tdep.c (MIPS_DEFAULT_MASK_ADDRESS_P): Delete macro.
(mips_mask_address_p): Add "tdep" parameter.
(show_mask_address, mips_addr_bits_remove): Update.

79
gdb/mips-tdep.c
View file

@ -5119,25 +5119,43 @@ set_mipsfpu_command (char *args, int from_tty)
static void
set_mipsfpu_single_command (char *args, int from_tty)
{
struct gdbarch_info info;
gdbarch_info_init (&info);
mips_fpu_type = MIPS_FPU_SINGLE;
mips_fpu_type_auto = 0;
gdbarch_tdep (current_gdbarch)->mips_fpu_type = MIPS_FPU_SINGLE;
/* FIXME: cagney/2003-11-15: Should be setting a field in "info"
instead of relying on globals. Doing that would let generic code
handle the search for this specific architecture. */
if (!gdbarch_update_p (info))
internal_error (__FILE__, __LINE__, "set mipsfpu failed");
}
static void
set_mipsfpu_double_command (char *args, int from_tty)
{
struct gdbarch_info info;
gdbarch_info_init (&info);
mips_fpu_type = MIPS_FPU_DOUBLE;
mips_fpu_type_auto = 0;
gdbarch_tdep (current_gdbarch)->mips_fpu_type = MIPS_FPU_DOUBLE;
/* FIXME: cagney/2003-11-15: Should be setting a field in "info"
instead of relying on globals. Doing that would let generic code
handle the search for this specific architecture. */
if (!gdbarch_update_p (info))
internal_error (__FILE__, __LINE__, "set mipsfpu failed");
}
static void
set_mipsfpu_none_command (char *args, int from_tty)
{
struct gdbarch_info info;
gdbarch_info_init (&info);
mips_fpu_type = MIPS_FPU_NONE;
mips_fpu_type_auto = 0;
gdbarch_tdep (current_gdbarch)->mips_fpu_type = MIPS_FPU_NONE;
/* FIXME: cagney/2003-11-15: Should be setting a field in "info"
instead of relying on globals. Doing that would let generic code
handle the search for this specific architecture. */
if (!gdbarch_update_p (info))
internal_error (__FILE__, __LINE__, "set mipsfpu failed");
}
static void
@ -5665,6 +5683,7 @@ mips_gdbarch_init (struct gdbarch_info info,
int elf_flags;
enum mips_abi mips_abi, found_abi, wanted_abi;
int num_regs;
enum mips_fpu_type fpu_type;
/* First of all, extract the elf_flags, if available. */
if (info.abfd && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour)
@ -5764,6 +5783,34 @@ mips_gdbarch_init (struct gdbarch_info info,
"mips_gdbarch_init: mips64_transfers_32bit_regs_p = %d\n",
mips64_transfers_32bit_regs_p);
/* Determine the MIPS FPU type. */
if (!mips_fpu_type_auto)
fpu_type = mips_fpu_type;
else if (info.bfd_arch_info != NULL
&& info.bfd_arch_info->arch == bfd_arch_mips)
switch (info.bfd_arch_info->mach)
{
case bfd_mach_mips3900:
case bfd_mach_mips4100:
case bfd_mach_mips4111:
fpu_type = MIPS_FPU_NONE;
break;
case bfd_mach_mips4650:
fpu_type = MIPS_FPU_SINGLE;
break;
default:
fpu_type = MIPS_FPU_DOUBLE;
break;
}
else if (arches != NULL)
fpu_type = gdbarch_tdep (arches->gdbarch)->mips_fpu_type;
else
fpu_type = MIPS_FPU_DOUBLE;
if (gdbarch_debug)
fprintf_unfiltered (gdb_stdlog,
"mips_gdbarch_init: fpu_type = %d\n",
fpu_type);
/* try to find a pre-existing architecture */
for (arches = gdbarch_list_lookup_by_info (arches, &info);
arches != NULL;
@ -5780,6 +5827,9 @@ mips_gdbarch_init (struct gdbarch_info info,
if (gdbarch_tdep (arches->gdbarch)->mips64_transfers_32bit_regs_p
!= mips64_transfers_32bit_regs_p)
continue;
/* Be pedantic about which FPU is selected. */
if (gdbarch_tdep (arches->gdbarch)->mips_fpu_type != fpu_type)
continue;
return arches->gdbarch;
}
@ -5790,6 +5840,7 @@ mips_gdbarch_init (struct gdbarch_info info,
tdep->mips64_transfers_32bit_regs_p = mips64_transfers_32bit_regs_p;
tdep->found_abi = found_abi;
tdep->mips_abi = mips_abi;
tdep->mips_fpu_type = fpu_type;
/* Initially set everything according to the default ABI/ISA. */
set_gdbarch_short_bit (gdbarch, 16);
@ -5976,28 +6027,6 @@ mips_gdbarch_init (struct gdbarch_info info,
the current gcc - it would make GDB treat these 64-bit programs
as 32-bit programs by default. */
/* enable/disable the MIPS FPU */
if (!mips_fpu_type_auto)
tdep->mips_fpu_type = mips_fpu_type;
else if (info.bfd_arch_info != NULL
&& info.bfd_arch_info->arch == bfd_arch_mips)
switch (info.bfd_arch_info->mach)
{
case bfd_mach_mips3900:
case bfd_mach_mips4100:
case bfd_mach_mips4111:
tdep->mips_fpu_type = MIPS_FPU_NONE;
break;
case bfd_mach_mips4650:
tdep->mips_fpu_type = MIPS_FPU_SINGLE;
break;
default:
tdep->mips_fpu_type = MIPS_FPU_DOUBLE;
break;
}
else
tdep->mips_fpu_type = MIPS_FPU_DOUBLE;
set_gdbarch_read_pc (gdbarch, mips_read_pc);
set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
set_gdbarch_deprecated_target_read_fp (gdbarch, mips_read_sp); /* Draft FRAME base. */