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* rs6000-tdep.c (rs6000_gdbarch_init): Initialize tdep fields

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before the mach-specific switch, and then let the individual cases
override the defaults, rather than leaving them uninitialized
until the switch and then setting them in each case.
This commit is contained in:
Jim Blandy 2004-05-19 04:18:42 +00:00
parent 5859efe54e
commit baffbae05e
2 changed files with 27 additions and 26 deletions
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7
gdb/ChangeLog
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@ -1,3 +1,10 @@
2004-05-18 Jim Blandy <jimb@redhat.com>
* rs6000-tdep.c (rs6000_gdbarch_init): Initialize tdep fields
before the mach-specific switch, and then let the individual cases
override the defaults, rather than leaving them uninitialized
until the switch and then setting them in each case.
2004-05-18 Randolph Chung <tausq@debian.org>
* hppa-tdep.c (hppa_frame_cache): Check for validity of r31 for

46
gdb/rs6000-tdep.c
View File

@ -2821,6 +2821,10 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep->ppc_mq_regnum = -1;
tdep->ppc_fp0_regnum = 32;
tdep->ppc_fpscr_regnum = power ? 71 : 70;
tdep->ppc_vr0_regnum = -1;
tdep->ppc_vrsave_regnum = -1;
tdep->ppc_ev0_regnum = -1;
tdep->ppc_ev31_regnum = -1;
set_gdbarch_pc_regnum (gdbarch, 64);
set_gdbarch_sp_regnum (gdbarch, 1);
@ -2835,20 +2839,32 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_deprecated_store_return_value (gdbarch, rs6000_store_return_value);
}
/* 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->num_tot_regs * sizeof (int));
for (i = off = 0; i < v->num_tot_regs; i++)
{
tdep->regoff[i] = off;
off += regsize (v->regs + i, wordsize);
}
if (v->arch == bfd_arch_powerpc)
switch (v->mach)
{
case bfd_mach_ppc:
tdep->ppc_vr0_regnum = 71;
tdep->ppc_vrsave_regnum = 104;
tdep->ppc_ev0_regnum = -1;
tdep->ppc_ev31_regnum = -1;
break;
case bfd_mach_ppc_7400:
tdep->ppc_vr0_regnum = 119;
tdep->ppc_vrsave_regnum = 152;
tdep->ppc_ev0_regnum = -1;
tdep->ppc_ev31_regnum = -1;
break;
case bfd_mach_ppc_e500:
tdep->ppc_gp0_regnum = 41;
@ -2868,33 +2884,11 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_pseudo_register_read (gdbarch, e500_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, e500_pseudo_register_write);
break;
default:
tdep->ppc_vr0_regnum = -1;
tdep->ppc_vrsave_regnum = -1;
tdep->ppc_ev0_regnum = -1;
tdep->ppc_ev31_regnum = -1;
break;
}
/* Sanity check on registers. */
gdb_assert (strcmp (tdep->regs[tdep->ppc_gp0_regnum].name, "r0") == 0);
/* 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->num_tot_regs * sizeof (int));
for (i = off = 0; i < v->num_tot_regs; i++)
{
tdep->regoff[i] = off;
off += regsize (v->regs + i, wordsize);
}
/* Select instruction printer. */
if (arch == power)
set_gdbarch_print_insn (gdbarch, print_insn_rs6000);