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Back out change. The NetBSD changes need Jason Thorpe's approval, but

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he hasn't reviewed it yet.
This commit is contained in:
Jim Blandy
2004-05-10 18:58:44 +00:00
parent cca0d3b030
commit 7bcda025ec
12 changed files with 65 additions and 263 deletions
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54
gdb/rs6000-tdep.c
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@@ -140,16 +140,16 @@ altivec_register_p (int regno)
return (regno >= tdep->ppc_vr0_regnum && regno <= tdep->ppc_vrsave_regnum);
}
/* Return non-zero if the architecture described by GDBARCH has
floating-point registers (f0 --- f31 and fpscr). */
/* Use the architectures FP registers? */
int
ppc_floating_point_unit_p (struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
return (tdep->ppc_fp0_regnum >= 0
&& tdep->ppc_fpscr_regnum >= 0);
const struct bfd_arch_info *info = gdbarch_bfd_arch_info (gdbarch);
if (info->arch == bfd_arch_powerpc)
return (info->mach != bfd_mach_ppc_e500);
if (info->arch == bfd_arch_rs6000)
return 1;
return 0;
}
@@ -226,8 +226,6 @@ ppc_supply_fpregset (const struct regset *regset, struct regcache *regcache,
size_t offset;
int i;
gdb_assert (ppc_floating_point_unit_p (gdbarch));
offset = offsets->f0_offset;
for (i = tdep->ppc_fp0_regnum;
i < tdep->ppc_fp0_regnum + ppc_num_fprs;
@@ -303,8 +301,6 @@ ppc_collect_fpregset (const struct regset *regset,
size_t offset;
int i;
gdb_assert (ppc_floating_point_unit_p (gdbarch));
offset = offsets->f0_offset;
for (i = tdep->ppc_fp0_regnum;
i <= tdep->ppc_fp0_regnum + ppc_num_fprs;
@@ -1194,11 +1190,6 @@ rs6000_push_dummy_call (struct gdbarch *gdbarch, CORE_ADDR func_addr,
CORE_ADDR saved_sp;
/* The calling convention this function implements assumes the
processor has floating-point registers. We shouldn't be using it
on PPC variants that lack them. */
gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
/* The first eight words of ther arguments are passed in registers.
Copy them appropriately. */
ii = 0;
@@ -1425,11 +1416,6 @@ rs6000_extract_return_value (struct type *valtype, char *regbuf, char *valbuf)
int offset = 0;
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
/* The calling convention this function implements assumes the
processor has floating-point registers. We shouldn't be using it
on PPC variants that lack them. */
gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
if (TYPE_CODE (valtype) == TYPE_CODE_FLT)
{
@@ -1741,9 +1727,6 @@ rs6000_dwarf2_stab_reg_to_regnum (int num)
if (0 <= num && num <= 31)
return tdep->ppc_gp0_regnum + num;
else if (32 <= num && num <= 63)
/* FIXME: jimb/2004-05-05: What should we do when the debug info
specifies registers the architecture doesn't have? Our
callers don't check the value we return. */
return tdep->ppc_fp0_regnum + (num - 32);
else if (1200 <= num && num < 1200 + 32)
return tdep->ppc_ev0_regnum + (num - 1200);
@@ -1782,11 +1765,6 @@ rs6000_store_return_value (struct type *type, char *valbuf)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
/* The calling convention this function implements assumes the
processor has floating-point registers. We shouldn't be using it
on PPC variants that lack them. */
gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
if (TYPE_CODE (type) == TYPE_CODE_FLT)
/* Floating point values are returned starting from FPR1 and up.
@@ -2467,17 +2445,11 @@ rs6000_frame_cache (struct frame_info *next_frame, void **this_cache)
{
int i;
CORE_ADDR fpr_addr = cache->base + fdata.fpr_offset;
/* If skip_prologue says floating-point registers were saved,
but the current architecture has no floating-point registers,
then that's strange. But we have no indices to even record
the addresses under, so we just ignore it. */
if (ppc_floating_point_unit_p (gdbarch))
for (i = fdata.saved_fpr; i < 32; i++)
{
cache->saved_regs[tdep->ppc_fp0_regnum + i].addr = fpr_addr;
fpr_addr += 8;
}
for (i = fdata.saved_fpr; i < 32; i++)
{
cache->saved_regs[tdep->ppc_fp0_regnum + i].addr = fpr_addr;
fpr_addr += 8;
}
}
/* if != -1, fdata.saved_gpr is the smallest number of saved_gpr.
@@ -2791,8 +2763,6 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep->ppc_xer_regnum = 5;
tdep->ppc_ev0_regnum = 7;
tdep->ppc_ev31_regnum = 38;
tdep->ppc_fp0_regnum = -1;
tdep->ppc_fpscr_regnum = -1;
set_gdbarch_pc_regnum (gdbarch, 0);
set_gdbarch_sp_regnum (gdbarch, tdep->ppc_gp0_regnum + 1);
set_gdbarch_deprecated_fp_regnum (gdbarch, tdep->ppc_gp0_regnum + 1);