#include "defs.h"
#include "frame.h"
#include "inferior.h"
#include "symtab.h"
#include "target.h"
#include "gdbcore.h"
#include "gdbcmd.h"
#include "objfiles.h"
#include "arch-utils.h"
#include "regcache.h"
#include "regset.h"
#include "doublest.h"
#include "value.h"
#include "parser-defs.h"
#include "osabi.h"
#include "infcall.h"
#include "sim-regno.h"
#include "gdb/sim-ppc.h"
#include "reggroups.h"
#include "libbfd.h"
#include "coff/internal.h"
#include "libcoff.h"
#include "coff/xcoff.h"
#include "libxcoff.h"
#include "elf-bfd.h"
#include "solib-svr4.h"
#include "ppc-tdep.h"
#include "gdb_assert.h"
#include "dis-asm.h"
#include "trad-frame.h"
#include "frame-unwind.h"
#include "frame-base.h"
#include "reggroups.h"
#define SIG_FRAME_PC_OFFSET 96
#define SIG_FRAME_LR_OFFSET 108
#define SIG_FRAME_FP_OFFSET 284
#ifndef TEXT_SEGMENT_BASE
#define TEXT_SEGMENT_BASE 0
#endif
struct rs6000_framedata
{
int offset;
int saved_gpr;
int saved_fpr;
int saved_vr;
int saved_ev;
int alloca_reg;
char frameless;
char nosavedpc;
int gpr_offset;
int fpr_offset;
int vr_offset;
int ev_offset;
int lr_offset;
int cr_offset;
int vrsave_offset;
};
struct reg
{
char *name;
unsigned char sz32;
unsigned char sz64;
unsigned char fpr;
unsigned char pseudo;
int spr_num;
};
static struct sstep_breaks
{
CORE_ADDR address;
gdb_byte data[4];
}
stepBreaks[2];
CORE_ADDR (*rs6000_find_toc_address_hook) (CORE_ADDR) = NULL;
void (*rs6000_set_host_arch_hook) (int) = NULL;
static CORE_ADDR branch_dest (int opcode, int instr, CORE_ADDR pc,
CORE_ADDR safety);
static CORE_ADDR skip_prologue (CORE_ADDR, CORE_ADDR,
struct rs6000_framedata *);
int
altivec_register_p (int regno)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
if (tdep->ppc_vr0_regnum < 0 || tdep->ppc_vrsave_regnum < 0)
return 0;
else
return (regno >= tdep->ppc_vr0_regnum && regno <= tdep->ppc_vrsave_regnum);
}
int
spe_register_p (int regno)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
if (tdep->ppc_ev0_regnum >= 0
&& tdep->ppc_ev31_regnum >= 0
&& tdep->ppc_ev0_regnum <= regno && regno <= tdep->ppc_ev31_regnum)
return 1;
if (tdep->ppc_ev0_upper_regnum >= 0
&& tdep->ppc_ev0_upper_regnum <= regno
&& regno < tdep->ppc_ev0_upper_regnum + ppc_num_gprs)
return 1;
if (tdep->ppc_acc_regnum >= 0
&& tdep->ppc_acc_regnum == regno)
return 1;
if (tdep->ppc_spefscr_regnum >= 0
&& tdep->ppc_spefscr_regnum == regno)
return 1;
return 0;
}
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);
}
static void
set_sim_regno (int *table, int gdb_regno, int sim_regno)
{
gdb_assert (table[gdb_regno] == -1);
table[gdb_regno] = sim_regno;
}
static void
init_sim_regno_table (struct gdbarch *arch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (arch);
int total_regs = gdbarch_num_regs (arch) + gdbarch_num_pseudo_regs (arch);
const struct reg *regs = tdep->regs;
int *sim_regno = GDBARCH_OBSTACK_CALLOC (arch, total_regs, int);
int i;
for (i = 0; i < total_regs; i++)
sim_regno[i] = -1;
for (i = 0; i < ppc_num_gprs; i++)
set_sim_regno (sim_regno, tdep->ppc_gp0_regnum + i, sim_ppc_r0_regnum + i);
if (tdep->ppc_fp0_regnum >= 0)
for (i = 0; i < ppc_num_fprs; i++)
set_sim_regno (sim_regno,
tdep->ppc_fp0_regnum + i,
sim_ppc_f0_regnum + i);
if (tdep->ppc_fpscr_regnum >= 0)
set_sim_regno (sim_regno, tdep->ppc_fpscr_regnum, sim_ppc_fpscr_regnum);
set_sim_regno (sim_regno, gdbarch_pc_regnum (arch), sim_ppc_pc_regnum);
set_sim_regno (sim_regno, tdep->ppc_ps_regnum, sim_ppc_ps_regnum);
set_sim_regno (sim_regno, tdep->ppc_cr_regnum, sim_ppc_cr_regnum);
if (tdep->ppc_sr0_regnum >= 0)
for (i = 0; i < ppc_num_srs; i++)
set_sim_regno (sim_regno,
tdep->ppc_sr0_regnum + i,
sim_ppc_sr0_regnum + i);
if (tdep->ppc_vr0_regnum >= 0)
{
for (i = 0; i < ppc_num_vrs; i++)
set_sim_regno (sim_regno,
tdep->ppc_vr0_regnum + i,
sim_ppc_vr0_regnum + i);
set_sim_regno (sim_regno,
tdep->ppc_vr0_regnum + ppc_num_vrs,
sim_ppc_vscr_regnum);
}
if (tdep->ppc_ev0_regnum >= 0)
for (i = 0; i < ppc_num_gprs; i++)
set_sim_regno (sim_regno,
tdep->ppc_ev0_regnum + i,
sim_ppc_ev0_regnum + i);
if (tdep->ppc_ev0_upper_regnum >= 0)
for (i = 0; i < ppc_num_gprs; i++)
set_sim_regno (sim_regno,
tdep->ppc_ev0_upper_regnum + i,
sim_ppc_rh0_regnum + i);
if (tdep->ppc_acc_regnum >= 0)
set_sim_regno (sim_regno, tdep->ppc_acc_regnum, sim_ppc_acc_regnum);
for (i = 0; i < total_regs; i++)
if (regs[i].spr_num >= 0)
set_sim_regno (sim_regno, i, regs[i].spr_num + sim_ppc_spr0_regnum);
tdep->sim_regno = sim_regno;
}
static int
rs6000_register_sim_regno (int reg)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
int sim_regno;
gdb_assert (0 <= reg && reg <= NUM_REGS + NUM_PSEUDO_REGS);
sim_regno = tdep->sim_regno[reg];
if (sim_regno >= 0)
return sim_regno;
else
return LEGACY_SIM_REGNO_IGNORE;
}
static void
ppc_supply_reg (struct regcache *regcache, int regnum,
const gdb_byte *regs, size_t offset)
{
if (regnum != -1 && offset != -1)
regcache_raw_supply (regcache, regnum, regs + offset);
}
static void
ppc_collect_reg (const struct regcache *regcache, int regnum,
gdb_byte *regs, size_t offset)
{
if (regnum != -1 && offset != -1)
regcache_raw_collect (regcache, regnum, regs + offset);
}
void
ppc_supply_gregset (const struct regset *regset, struct regcache *regcache,
int regnum, const void *gregs, size_t len)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
const struct ppc_reg_offsets *offsets = regset->descr;
size_t offset;
int i;
for (i = tdep->ppc_gp0_regnum, offset = offsets->r0_offset;
i < tdep->ppc_gp0_regnum + ppc_num_gprs;
i++, offset += 4)
{
if (regnum == -1 || regnum == i)
ppc_supply_reg (regcache, i, gregs, offset);
}
if (regnum == -1 || regnum == PC_REGNUM)
ppc_supply_reg (regcache, PC_REGNUM, gregs, offsets->pc_offset);
if (regnum == -1 || regnum == tdep->ppc_ps_regnum)
ppc_supply_reg (regcache, tdep->ppc_ps_regnum,
gregs, offsets->ps_offset);
if (regnum == -1 || regnum == tdep->ppc_cr_regnum)
ppc_supply_reg (regcache, tdep->ppc_cr_regnum,
gregs, offsets->cr_offset);
if (regnum == -1 || regnum == tdep->ppc_lr_regnum)
ppc_supply_reg (regcache, tdep->ppc_lr_regnum,
gregs, offsets->lr_offset);
if (regnum == -1 || regnum == tdep->ppc_ctr_regnum)
ppc_supply_reg (regcache, tdep->ppc_ctr_regnum,
gregs, offsets->ctr_offset);
if (regnum == -1 || regnum == tdep->ppc_xer_regnum)
ppc_supply_reg (regcache, tdep->ppc_xer_regnum,
gregs, offsets->cr_offset);
if (regnum == -1 || regnum == tdep->ppc_mq_regnum)
ppc_supply_reg (regcache, tdep->ppc_mq_regnum, gregs, offsets->mq_offset);
}
void
ppc_supply_fpregset (const struct regset *regset, struct regcache *regcache,
int regnum, const void *fpregs, size_t len)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
const struct ppc_reg_offsets *offsets = regset->descr;
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;
i++, offset += 8)
{
if (regnum == -1 || regnum == i)
ppc_supply_reg (regcache, i, fpregs, offset);
}
if (regnum == -1 || regnum == tdep->ppc_fpscr_regnum)
ppc_supply_reg (regcache, tdep->ppc_fpscr_regnum,
fpregs, offsets->fpscr_offset);
}
void
ppc_collect_gregset (const struct regset *regset,
const struct regcache *regcache,
int regnum, void *gregs, size_t len)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
const struct ppc_reg_offsets *offsets = regset->descr;
size_t offset;
int i;
offset = offsets->r0_offset;
for (i = tdep->ppc_gp0_regnum;
i < tdep->ppc_gp0_regnum + ppc_num_gprs;
i++, offset += 4)
{
if (regnum == -1 || regnum == i)
ppc_collect_reg (regcache, i, gregs, offset);
}
if (regnum == -1 || regnum == PC_REGNUM)
ppc_collect_reg (regcache, PC_REGNUM, gregs, offsets->pc_offset);
if (regnum == -1 || regnum == tdep->ppc_ps_regnum)
ppc_collect_reg (regcache, tdep->ppc_ps_regnum,
gregs, offsets->ps_offset);
if (regnum == -1 || regnum == tdep->ppc_cr_regnum)
ppc_collect_reg (regcache, tdep->ppc_cr_regnum,
gregs, offsets->cr_offset);
if (regnum == -1 || regnum == tdep->ppc_lr_regnum)
ppc_collect_reg (regcache, tdep->ppc_lr_regnum,
gregs, offsets->lr_offset);
if (regnum == -1 || regnum == tdep->ppc_ctr_regnum)
ppc_collect_reg (regcache, tdep->ppc_ctr_regnum,
gregs, offsets->ctr_offset);
if (regnum == -1 || regnum == tdep->ppc_xer_regnum)
ppc_collect_reg (regcache, tdep->ppc_xer_regnum,
gregs, offsets->xer_offset);
if (regnum == -1 || regnum == tdep->ppc_mq_regnum)
ppc_collect_reg (regcache, tdep->ppc_mq_regnum,
gregs, offsets->mq_offset);
}
void
ppc_collect_fpregset (const struct regset *regset,
const struct regcache *regcache,
int regnum, void *fpregs, size_t len)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
const struct ppc_reg_offsets *offsets = regset->descr;
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;
i++, offset += 8)
{
if (regnum == -1 || regnum == i)
ppc_collect_reg (regcache, i, fpregs, offset);
}
if (regnum == -1 || regnum == tdep->ppc_fpscr_regnum)
ppc_collect_reg (regcache, tdep->ppc_fpscr_regnum,
fpregs, offsets->fpscr_offset);
}
static CORE_ADDR
read_memory_addr (CORE_ADDR memaddr, int len)
{
return read_memory_unsigned_integer (memaddr, len);
}
static CORE_ADDR
rs6000_skip_prologue (CORE_ADDR pc)
{
struct rs6000_framedata frame;
pc = skip_prologue (pc, 0, &frame);
return pc;
}
struct frame_extra_info
{
CORE_ADDR initial_sp;
};
CORE_ADDR
rs6000_fetch_pointer_argument (struct frame_info *frame, int argi,
struct type *type)
{
return get_frame_register_unsigned (frame, 3 + argi);
}
static CORE_ADDR
branch_dest (int opcode, int instr, CORE_ADDR pc, CORE_ADDR safety)
{
CORE_ADDR dest;
int immediate;
int absolute;
int ext_op;
absolute = (int) ((instr >> 1) & 1);
switch (opcode)
{
case 18:
immediate = ((instr & ~3) << 6) >> 6;
if (absolute)
dest = immediate;
else
dest = pc + immediate;
break;
case 16:
immediate = ((instr & ~3) << 16) >> 16;
if (absolute)
dest = immediate;
else
dest = pc + immediate;
break;
case 19:
ext_op = (instr >> 1) & 0x3ff;
if (ext_op == 16)
{
dest = read_register (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum) & ~3;
if (dest < TEXT_SEGMENT_BASE)
{
struct frame_info *fi;
fi = get_current_frame ();
if (fi != NULL)
dest = read_memory_addr (get_frame_base (fi) + SIG_FRAME_PC_OFFSET,
gdbarch_tdep (current_gdbarch)->wordsize);
}
}
else if (ext_op == 528)
{
dest = read_register (gdbarch_tdep (current_gdbarch)->ppc_ctr_regnum) & ~3;
if (dest < TEXT_SEGMENT_BASE)
dest = read_register (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum) & ~3;
}
else
return -1;
break;
default:
return -1;
}
return (dest < TEXT_SEGMENT_BASE) ? safety : dest;
}
const static unsigned char *
rs6000_breakpoint_from_pc (CORE_ADDR *bp_addr, int *bp_size)
{
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;
else
return little_breakpoint;
}
void
rs6000_software_single_step (enum target_signal signal,
int insert_breakpoints_p)
{
CORE_ADDR dummy;
int breakp_sz;
const gdb_byte *breakp = rs6000_breakpoint_from_pc (&dummy, &breakp_sz);
int ii, insn;
CORE_ADDR loc;
CORE_ADDR breaks[2];
int opcode;
if (insert_breakpoints_p)
{
loc = read_pc ();
insn = read_memory_integer (loc, 4);
breaks[0] = loc + breakp_sz;
opcode = insn >> 26;
breaks[1] = branch_dest (opcode, insn, loc, breaks[0]);
if (breaks[1] == breaks[0])
breaks[1] = -1;
stepBreaks[1].address = 0;
for (ii = 0; ii < 2; ++ii)
{
if (breaks[ii] == -1)
continue;
target_insert_breakpoint (breaks[ii], stepBreaks[ii].data);
stepBreaks[ii].address = breaks[ii];
}
}
else
{
for (ii = 0; ii < 2; ++ii)
if (stepBreaks[ii].address != 0)
target_remove_breakpoint (stepBreaks[ii].address,
stepBreaks[ii].data);
}
errno = 0;
}
#define SIGNED_SHORT(x) \
((sizeof (short) == 2) \
? ((int)(short)(x)) \
: ((int)((((x) & 0xffff) ^ 0x8000) - 0x8000)))
#define GET_SRC_REG(x) (((x) >> 21) & 0x1f)
static int max_skip_non_prologue_insns = 10;
static int
store_param_on_stack_p (unsigned long op, int framep, int *r0_contains_arg)
{
if ((op & 0xfc0007fe) == 0x7c000378)
{
const int rx_regno = (op >> 16) & 31;
const int ry_regno = GET_SRC_REG (op);
if (rx_regno == 0 && ry_regno >= 3 && ry_regno <= 10)
{
*r0_contains_arg = 1;
return 1;
}
else
return 0;
}
if ((op & 0xfc1f0003) == 0xf8010000 ||
(op & 0xfc1f0000) == 0xd8010000)
{
const int rx_regno = GET_SRC_REG (op);
return (rx_regno >= 3 && rx_regno <= 10);
}
if (framep &&
((op & 0xfc1f0000) == 0x901f0000 ||
(op & 0xfc1f0000) == 0x981f0000 ||
(op & 0xfc1f0000) == 0xd81f0000))
{
const int rx_regno = GET_SRC_REG (op);
return ((rx_regno >= 3 && rx_regno <= 10)
|| (rx_regno == 0 && *r0_contains_arg));
}
if ((op & 0xfc1f0000) == 0xfc010000)
{
const int src_regno = GET_SRC_REG (op);
return (src_regno >= 2 && src_regno <= 8);
}
if (framep && ((op & 0xfc1f0000) == 0xfc1f0000))
{
const int src_regno = GET_SRC_REG (op);
return (src_regno >= 2 && src_regno <= 8);
}
return 0;
}
static CORE_ADDR
skip_prologue (CORE_ADDR pc, CORE_ADDR lim_pc, struct rs6000_framedata *fdata)
{
CORE_ADDR orig_pc = pc;
CORE_ADDR last_prologue_pc = pc;
CORE_ADDR li_found_pc = 0;
gdb_byte buf[4];
unsigned long op;
long offset = 0;
long vr_saved_offset = 0;
int lr_reg = -1;
int cr_reg = -1;
int vr_reg = -1;
int ev_reg = -1;
long ev_offset = 0;
int vrsave_reg = -1;
int reg;
int framep = 0;
int minimal_toc_loaded = 0;
int prev_insn_was_prologue_insn = 1;
int num_skip_non_prologue_insns = 0;
int r0_contains_arg = 0;
const struct bfd_arch_info *arch_info = gdbarch_bfd_arch_info (current_gdbarch);
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
if (lim_pc == 0)
lim_pc = refine_prologue_limit (pc, lim_pc, max_skip_non_prologue_insns);
memset (fdata, 0, sizeof (struct rs6000_framedata));
fdata->saved_gpr = -1;
fdata->saved_fpr = -1;
fdata->saved_vr = -1;
fdata->saved_ev = -1;
fdata->alloca_reg = -1;
fdata->frameless = 1;
fdata->nosavedpc = 1;
for (;; pc += 4)
{
if (prev_insn_was_prologue_insn)
last_prologue_pc = pc;
if (lim_pc != 0 && pc >= lim_pc)
break;
prev_insn_was_prologue_insn = 1;
if (target_read_memory (pc, buf, 4))
break;
op = extract_signed_integer (buf, 4);
if ((op & 0xfc1fffff) == 0x7c0802a6)
{
if (lr_reg < 0)
lr_reg = (op & 0x03e00000);
if (lr_reg == 0)
r0_contains_arg = 0;
continue;
}
else if ((op & 0xfc1fffff) == 0x7c000026)
{
cr_reg = (op & 0x03e00000);
if (cr_reg == 0)
r0_contains_arg = 0;
continue;
}
else if ((op & 0xfc1f0000) == 0xd8010000)
{
reg = GET_SRC_REG (op);
if (fdata->saved_fpr == -1 || fdata->saved_fpr > reg)
{
fdata->saved_fpr = reg;
fdata->fpr_offset = SIGNED_SHORT (op) + offset;
}
continue;
}
else if (((op & 0xfc1f0000) == 0xbc010000) ||
(((op & 0xfc1f0000) == 0x90010000 ||
(op & 0xfc1f0003) == 0xf8010000) &&
(op & 0x03e00000) >= 0x01a00000))
{
reg = GET_SRC_REG (op);
if (fdata->saved_gpr == -1 || fdata->saved_gpr > reg)
{
fdata->saved_gpr = reg;
if ((op & 0xfc1f0003) == 0xf8010000)
op &= ~3UL;
fdata->gpr_offset = SIGNED_SHORT (op) + offset;
}
continue;
}
else if ((op & 0xffff0000) == 0x60000000)
{
prev_insn_was_prologue_insn = 0;
continue;
}
else if ((op & 0xffff0000) == 0x3c000000)
{
fdata->offset = (op & 0x0000ffff) << 16;
fdata->frameless = 0;
r0_contains_arg = 0;
continue;
}
else if ((op & 0xffff0000) == 0x60000000)
{
fdata->offset |= (op & 0x0000ffff);
fdata->frameless = 0;
r0_contains_arg = 0;
continue;
}
else if (lr_reg >= 0 &&
(((op & 0xffff0000) == (lr_reg | 0xf8010000)) ||
((op & 0xffff0000) == (lr_reg | 0x90010000)) ||
((op & 0xffff0000) == (lr_reg | 0x94010000))))
{
fdata->lr_offset = offset;
fdata->nosavedpc = 0;
lr_reg = -2;
if ((op & 0xfc000003) == 0xf8000000 ||
(op & 0xfc000000) == 0x90000000)
{
fdata->lr_offset += SIGNED_SHORT (op);
}
continue;
}
else if (cr_reg >= 0 &&
(((op & 0xffff0000) == (cr_reg | 0xf8010000)) ||
((op & 0xffff0000) == (cr_reg | 0x90010000)) ||
((op & 0xffff0000) == (cr_reg | 0x94010000))))
{
fdata->cr_offset = offset;
cr_reg = -2;
if ((op & 0xfc000003) == 0xf8000000 ||
(op & 0xfc000000) == 0x90000000)
{
fdata->cr_offset += SIGNED_SHORT (op);
}
continue;
}
else if (op == 0x48000005)
{
continue;
}
else if (op == 0x48000004)
{
break;
}
else if ((op & 0xffff0000) == 0x3fc00000 ||
(op & 0xffff0000) == 0x3bde0000)
{
continue;
}
else if ((op & 0xfc000001) == 0x48000001)
{
fdata->frameless = 0;
if ((pc - orig_pc) > 8)
{
struct symtab_and_line prologue_sal = find_pc_line (orig_pc, 0);
struct symtab_and_line this_sal = find_pc_line (pc, 0);
if ((prologue_sal.line == 0) || (prologue_sal.line != this_sal.line))
break;
}
op = read_memory_integer (pc + 4, 4);
if (op == 0x4def7b82 || op == 0)
break;
continue;
}
else if ((op & 0xfc1f0000) == 0x94010000)
{
fdata->frameless = 0;
fdata->offset = SIGNED_SHORT (op);
offset = fdata->offset;
continue;
}
else if ((op & 0xfc1f016a) == 0x7c01016e)
{
fdata->frameless = 0;
offset = fdata->offset;
continue;
}
else if ((op & 0xfc1f0003) == 0xf8010001)
{
fdata->frameless = 0;
fdata->offset = SIGNED_SHORT (op & ~3UL);
offset = fdata->offset;
continue;
}
else if ((op & 0xfc1f016a) == 0x7c01016a)
{
fdata->frameless = 0;
offset = fdata->offset;
continue;
}
else if (((op >> 22) == 0x20f ||
(op >> 22) == 0x3af)
&& !minimal_toc_loaded)
{
minimal_toc_loaded = 1;
continue;
}
else if ((op & 0xfc0007fe) == 0x7c000378 &&
(((op >> 21) & 31) >= 3) &&
(((op >> 21) & 31) <= 10) &&
((long) ((op >> 16) & 31) >= fdata->saved_gpr))
{
continue;
}
else if (store_param_on_stack_p (op, framep, &r0_contains_arg))
{
continue;
}
else if (op == 0x603f0000
|| op == 0x7c3f0b78)
{
fdata->frameless = 0;
framep = 1;
fdata->alloca_reg = (tdep->ppc_gp0_regnum + 31);
continue;
}
else if ((op & 0xfc1fffff) == 0x38010000)
{
fdata->frameless = 0;
framep = 1;
fdata->alloca_reg = (tdep->ppc_gp0_regnum
+ ((op & ~0x38010000) >> 21));
continue;
}
else if ((op & 0xfc1fffff) == 0x7c0042a6)
{
vrsave_reg = GET_SRC_REG (op);
continue;
}
else if ((op & 0xfc1fffff) == 0x7c0043a6)
{
continue;
}
else if ((op & 0xfc1f0000) == 0x90010000)
{
if (vrsave_reg == GET_SRC_REG (op))
{
fdata->vrsave_offset = SIGNED_SHORT (op) + offset;
vrsave_reg = -1;
}
continue;
}
else if (((op & 0xfc000000) == 0x64000000)
|| ((op & 0xfc000000) == 0x60000000))
{
continue;
}
else if ((op & 0xffff0000) == 0x38000000
|| (op & 0xffff0000) == 0x39c00000)
{
if ((op & 0xffff0000) == 0x38000000)
r0_contains_arg = 0;
li_found_pc = pc;
vr_saved_offset = SIGNED_SHORT (op);
prev_insn_was_prologue_insn = 0;
}
else if ((op & 0xfc1fffff) == 0x7c1f01ce)
{
if (pc == (li_found_pc + 4))
{
vr_reg = GET_SRC_REG (op);
if (fdata->saved_vr == -1 || fdata->saved_vr > vr_reg)
{
fdata->saved_vr = vr_reg;
fdata->vr_offset = vr_saved_offset + offset;
}
vr_saved_offset = -1;
vr_reg = -1;
li_found_pc = 0;
}
}
else if (arch_info->mach == bfd_mach_ppc_e500
&& (op & 0xfc1f07ff) == 0x101f0321)
{
if ((op & 0x03e00000) >= 0x01a00000)
{
unsigned int imm;
ev_reg = GET_SRC_REG (op);
imm = (op >> 11) & 0x1f;
ev_offset = imm * 8;
if (fdata->saved_ev == -1 || fdata->saved_ev > ev_reg)
{
fdata->saved_ev = ev_reg;
fdata->ev_offset = ev_offset + offset;
}
}
continue;
}
else if (arch_info->mach == bfd_mach_ppc_e500
&& (op & 0xffe007ff) == 0x13e00320)
{
if (pc == (li_found_pc + 4))
{
ev_reg = GET_SRC_REG (op);
if (fdata->saved_ev == -1 || fdata->saved_ev > ev_reg)
{
fdata->saved_ev = ev_reg;
fdata->ev_offset = vr_saved_offset + offset;
}
vr_saved_offset = -1;
ev_reg = -1;
li_found_pc = 0;
}
continue;
}
else if (arch_info->mach == bfd_mach_ppc_e500
&& (op & 0xffe007ff) == 0x13e00321)
{
ev_reg = GET_SRC_REG (op);
ev_offset = ((op >> 11) & 0x1f) * 8;
if (fdata->saved_ev == -1 || fdata->saved_ev > ev_reg)
{
fdata->saved_ev = ev_reg;
fdata->ev_offset = ev_offset + offset;
}
continue;
}
else if (arch_info->mach == bfd_mach_ppc_e500
&& (op & 0xfc1fffff) == 0x101f0320)
{
if (pc == (li_found_pc + 4))
{
if ((op & 0x03e00000) >= 0x01a00000)
{
ev_reg = GET_SRC_REG (op);
if (fdata->saved_ev == -1 || fdata->saved_ev > ev_reg)
{
fdata->saved_ev = ev_reg;
fdata->ev_offset = vr_saved_offset + offset;
}
ev_reg = -1;
}
vr_saved_offset = -1;
li_found_pc = 0;
continue;
}
}
else
{
if (fdata->frameless == 0
&& (lr_reg == -1 || fdata->nosavedpc == 0))
break;
if (op == 0x4e800020
|| op == 0x4e800420)
break;
if ((op & 0xf4000000) == 0x40000000)
break;
if (num_skip_non_prologue_insns++ > max_skip_non_prologue_insns)
break;
prev_insn_was_prologue_insn = 0;
continue;
}
}
#if 0
if ((op & 0xfc000001) == 0x48000001)
{
op = read_memory_integer (pc + 4, 4);
if (op == 0x4def7b82)
{
tmp = find_pc_misc_function (pc);
if (tmp >= 0
&& strcmp (misc_function_vector[tmp].name, main_name ()) == 0)
return pc + 8;
}
}
#endif
fdata->offset = -fdata->offset;
return last_prologue_pc;
}
static CORE_ADDR
rs6000_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr)
{
return (addr & -16);
}
CORE_ADDR
rs6000_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
struct regcache *regcache, CORE_ADDR bp_addr,
int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
int ii;
int len = 0;
int argno;
int argbytes;
gdb_byte tmp_buffer[50];
int f_argno = 0;
int wordsize = gdbarch_tdep (current_gdbarch)->wordsize;
CORE_ADDR func_addr = find_function_addr (function, NULL);
struct value *arg = 0;
struct type *type;
CORE_ADDR saved_sp;
gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
ii = 0;
if (struct_return)
{
regcache_raw_write_unsigned (regcache, tdep->ppc_gp0_regnum + 3,
struct_addr);
ii++;
}
for (argno = 0, argbytes = 0; argno < nargs && ii < 8; ++ii)
{
int reg_size = register_size (current_gdbarch, ii + 3);
arg = args[argno];
type = check_typedef (value_type (arg));
len = TYPE_LENGTH (type);
if (TYPE_CODE (type) == TYPE_CODE_FLT)
{
gdb_assert (len <= 8);
regcache_cooked_write (regcache,
tdep->ppc_fp0_regnum + 1 + f_argno,
value_contents (arg));
++f_argno;
}
if (len > reg_size)
{
while (argbytes < len)
{
gdb_byte word[MAX_REGISTER_SIZE];
memset (word, 0, reg_size);
memcpy (word,
((char *) value_contents (arg)) + argbytes,
(len - argbytes) > reg_size
? reg_size : len - argbytes);
regcache_cooked_write (regcache,
tdep->ppc_gp0_regnum + 3 + ii,
word);
++ii, argbytes += reg_size;
if (ii >= 8)
goto ran_out_of_registers_for_arguments;
}
argbytes = 0;
--ii;
}
else
{
int adj = TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? reg_size - len : 0;
gdb_byte word[MAX_REGISTER_SIZE];
memset (word, 0, reg_size);
memcpy (word, value_contents (arg), len);
regcache_cooked_write (regcache, tdep->ppc_gp0_regnum + 3 +ii, word);
}
++argno;
}
ran_out_of_registers_for_arguments:
saved_sp = read_sp ();
sp -= wordsize * 8;
sp -= wordsize * 6;
sp &= -16;
if ((argno < nargs) || argbytes)
{
int space = 0, jj;
if (argbytes)
{
space += ((len - argbytes + 3) & -4);
jj = argno + 1;
}
else
jj = argno;
for (; jj < nargs; ++jj)
{
struct value *val = args[jj];
space += ((TYPE_LENGTH (value_type (val))) + 3) & -4;
}
space = (space + 15) & -16;
sp -= space;
regcache_raw_write_signed (regcache, SP_REGNUM, sp);
if (argbytes)
{
write_memory (sp + 24 + (ii * 4),
value_contents (arg) + argbytes,
len - argbytes);
++argno;
ii += ((len - argbytes + 3) & -4) / 4;
}
for (; argno < nargs; ++argno)
{
arg = args[argno];
type = check_typedef (value_type (arg));
len = TYPE_LENGTH (type);
if (TYPE_CODE (type) == TYPE_CODE_FLT && f_argno < 13)
{
gdb_assert (len <= 8);
regcache_cooked_write (regcache,
tdep->ppc_fp0_regnum + 1 + f_argno,
value_contents (arg));
++f_argno;
}
write_memory (sp + 24 + (ii * 4), value_contents (arg), len);
ii += ((len + 3) & -4) / 4;
}
}
regcache_raw_write_signed (regcache, SP_REGNUM, sp);
store_unsigned_integer (tmp_buffer, 4, saved_sp);
write_memory (sp, tmp_buffer, 4);
regcache_raw_write_signed (regcache, tdep->ppc_lr_regnum, bp_addr);
if (rs6000_find_toc_address_hook != NULL)
{
CORE_ADDR tocvalue = (*rs6000_find_toc_address_hook) (func_addr);
regcache_raw_write_signed (regcache, tdep->ppc_toc_regnum, tocvalue);
}
target_store_registers (-1);
return sp;
}
static int
rs6000_use_struct_convention (int gcc_p, struct type *value_type)
{
if ((TYPE_LENGTH (value_type) == 16 || TYPE_LENGTH (value_type) == 8)
&& TYPE_VECTOR (value_type))
return 0;
return 1;
}
static void
rs6000_extract_return_value (struct type *valtype, gdb_byte *regbuf,
gdb_byte *valbuf)
{
int offset = 0;
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
if (TYPE_CODE (valtype) == TYPE_CODE_FLT)
{
convert_typed_floating (®buf[DEPRECATED_REGISTER_BYTE
(tdep->ppc_fp0_regnum + 1)],
builtin_type_double,
valbuf,
valtype);
}
else if (TYPE_CODE (valtype) == TYPE_CODE_ARRAY
&& TYPE_LENGTH (valtype) == 16
&& TYPE_VECTOR (valtype))
{
memcpy (valbuf, regbuf + DEPRECATED_REGISTER_BYTE (tdep->ppc_vr0_regnum + 2),
TYPE_LENGTH (valtype));
}
else
{
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG
&& TYPE_LENGTH (valtype) < register_size (current_gdbarch, 3))
offset = register_size (current_gdbarch, 3) - TYPE_LENGTH (valtype);
memcpy (valbuf,
regbuf + DEPRECATED_REGISTER_BYTE (3) + offset,
TYPE_LENGTH (valtype));
}
}
int
rs6000_in_solib_return_trampoline (CORE_ADDR pc, char *name)
{
return name && !strncmp (name, "@FIX", 4);
}
CORE_ADDR
rs6000_skip_trampoline_code (CORE_ADDR pc)
{
unsigned int ii, op;
int rel;
CORE_ADDR solib_target_pc;
struct minimal_symbol *msymbol;
static unsigned trampoline_code[] =
{
0x800b0000,
0x90410014,
0x7c0903a6,
0x804b0004,
0x816b0008,
0x4e800420,
0x4e800020,
0
};
msymbol = lookup_minimal_symbol_by_pc (pc);
if (msymbol
&& rs6000_in_solib_return_trampoline (pc,
DEPRECATED_SYMBOL_NAME (msymbol)))
{
op = read_memory_integer (pc + 8, 4);
if ((op & 0xfc000003) == 0x48000000)
{
rel = ((int)(op << 6) >> 6);
return pc + 8 + rel;
}
}
solib_target_pc = find_solib_trampoline_target (pc);
if (solib_target_pc)
return solib_target_pc;
for (ii = 0; trampoline_code[ii]; ++ii)
{
op = read_memory_integer (pc + (ii * 4), 4);
if (op != trampoline_code[ii])
return 0;
}
ii = read_register (11);
pc = read_memory_addr (ii, gdbarch_tdep (current_gdbarch)->wordsize);
return pc;
}
static int
regsize (const struct reg *reg, int wordsize)
{
return wordsize == 8 ? reg->sz64 : reg->sz32;
}
static const char *
rs6000_register_name (int n)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
const struct reg *reg = tdep->regs + n;
if (!regsize (reg, tdep->wordsize))
return NULL;
return reg->name;
}
static struct type *
rs6000_register_type (struct gdbarch *gdbarch, int n)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
const struct reg *reg = tdep->regs + n;
if (reg->fpr)
return builtin_type_double;
else
{
int size = regsize (reg, tdep->wordsize);
switch (size)
{
case 0:
return builtin_type_int0;
case 4:
return builtin_type_uint32;
case 8:
if (tdep->ppc_ev0_regnum <= n && n <= tdep->ppc_ev31_regnum)
return builtin_type_vec64;
else
return builtin_type_uint64;
break;
case 16:
return builtin_type_vec128;
break;
default:
internal_error (__FILE__, __LINE__, _("Register %d size %d unknown"),
n, size);
}
}
}
static int
rs6000_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
struct reggroup *group)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
int float_p;
int vector_p;
int general_p;
if (REGISTER_NAME (regnum) == NULL
|| *REGISTER_NAME (regnum) == '\0')
return 0;
if (group == all_reggroup)
return 1;
float_p = (regnum == tdep->ppc_fpscr_regnum
|| (regnum >= tdep->ppc_fp0_regnum
&& regnum < tdep->ppc_fp0_regnum + 32));
if (group == float_reggroup)
return float_p;
vector_p = ((regnum >= tdep->ppc_vr0_regnum
&& regnum < tdep->ppc_vr0_regnum + 32)
|| (regnum >= tdep->ppc_ev0_regnum
&& regnum < tdep->ppc_ev0_regnum + 32)
|| regnum == tdep->ppc_vrsave_regnum
|| regnum == tdep->ppc_acc_regnum
|| regnum == tdep->ppc_spefscr_regnum);
if (group == vector_reggroup)
return vector_p;
general_p = ((regnum >= tdep->ppc_gp0_regnum
&& regnum < tdep->ppc_gp0_regnum + 32)
|| regnum == tdep->ppc_toc_regnum
|| regnum == tdep->ppc_cr_regnum
|| regnum == tdep->ppc_lr_regnum
|| regnum == tdep->ppc_ctr_regnum
|| regnum == tdep->ppc_xer_regnum
|| regnum == PC_REGNUM);
if (group == general_reggroup)
return general_p;
if (group == save_reggroup || group == restore_reggroup)
return general_p || vector_p || float_p;
return 0;
}
static int
rs6000_convert_register_p (int regnum, struct type *type)
{
const struct reg *reg = gdbarch_tdep (current_gdbarch)->regs + regnum;
return (reg->fpr
&& TYPE_CODE (type) == TYPE_CODE_FLT
&& TYPE_LENGTH (type) != TYPE_LENGTH (builtin_type_double));
}
void
rs6000_register_to_value (struct frame_info *frame,
int regnum,
struct type *type,
gdb_byte *to)
{
const struct reg *reg = gdbarch_tdep (current_gdbarch)->regs + regnum;
gdb_byte from[MAX_REGISTER_SIZE];
gdb_assert (reg->fpr);
gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLT);
get_frame_register (frame, regnum, from);
convert_typed_floating (from, builtin_type_double, to, type);
}
void
rs6000_value_to_register (struct frame_info *frame,
int regnum,
struct type *type,
const gdb_byte *from)
{
const struct reg *reg = gdbarch_tdep (current_gdbarch)->regs + regnum;
gdb_byte to[MAX_REGISTER_SIZE];
gdb_assert (reg->fpr);
gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLT);
convert_typed_floating (from, type, to, builtin_type_double);
put_frame_register (frame, regnum, to);
}
static void
e500_move_ev_register (void (*move) (struct regcache *regcache,
int regnum, gdb_byte *buf),
struct regcache *regcache, int ev_reg,
gdb_byte *buffer)
{
struct gdbarch *arch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (arch);
int reg_index;
gdb_byte *byte_buffer = buffer;
gdb_assert (tdep->ppc_ev0_regnum <= ev_reg
&& ev_reg < tdep->ppc_ev0_regnum + ppc_num_gprs);
reg_index = ev_reg - tdep->ppc_ev0_regnum;
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
{
move (regcache, tdep->ppc_ev0_upper_regnum + reg_index, byte_buffer);
move (regcache, tdep->ppc_gp0_regnum + reg_index, byte_buffer + 4);
}
else
{
move (regcache, tdep->ppc_gp0_regnum + reg_index, byte_buffer);
move (regcache, tdep->ppc_ev0_upper_regnum + reg_index, byte_buffer + 4);
}
}
static void
e500_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
int reg_nr, gdb_byte *buffer)
{
struct gdbarch *regcache_arch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
gdb_assert (regcache_arch == gdbarch);
if (tdep->ppc_ev0_regnum <= reg_nr
&& reg_nr < tdep->ppc_ev0_regnum + ppc_num_gprs)
e500_move_ev_register (regcache_raw_read, regcache, reg_nr, buffer);
else
internal_error (__FILE__, __LINE__,
_("e500_pseudo_register_read: "
"called on unexpected register '%s' (%d)"),
gdbarch_register_name (gdbarch, reg_nr), reg_nr);
}
static void
e500_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
int reg_nr, const gdb_byte *buffer)
{
struct gdbarch *regcache_arch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
gdb_assert (regcache_arch == gdbarch);
if (tdep->ppc_ev0_regnum <= reg_nr
&& reg_nr < tdep->ppc_ev0_regnum + ppc_num_gprs)
e500_move_ev_register ((void (*) (struct regcache *, int, gdb_byte *))
regcache_raw_write,
regcache, reg_nr, (gdb_byte *) buffer);
else
internal_error (__FILE__, __LINE__,
_("e500_pseudo_register_read: "
"called on unexpected register '%s' (%d)"),
gdbarch_register_name (gdbarch, reg_nr), reg_nr);
}
static int
e500_register_reggroup_p (struct gdbarch *gdbarch,
int regnum,
struct reggroup *group)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
if ((group == save_reggroup
|| group == restore_reggroup)
&& (tdep->ppc_ev0_upper_regnum <= regnum
&& regnum < tdep->ppc_ev0_upper_regnum + ppc_num_gprs))
return 1;
return default_register_reggroup_p (gdbarch, regnum, group);
}
static int
rs6000_stab_reg_to_regnum (int num)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
if (0 <= num && num <= 31)
return tdep->ppc_gp0_regnum + num;
else if (32 <= num && num <= 63)
return tdep->ppc_fp0_regnum + (num - 32);
else if (77 <= num && num <= 108)
return tdep->ppc_vr0_regnum + (num - 77);
else if (1200 <= num && num < 1200 + 32)
return tdep->ppc_ev0_regnum + (num - 1200);
else
switch (num)
{
case 64:
return tdep->ppc_mq_regnum;
case 65:
return tdep->ppc_lr_regnum;
case 66:
return tdep->ppc_ctr_regnum;
case 76:
return tdep->ppc_xer_regnum;
case 109:
return tdep->ppc_vrsave_regnum;
case 110:
return tdep->ppc_vrsave_regnum - 1;
case 111:
return tdep->ppc_acc_regnum;
case 112:
return tdep->ppc_spefscr_regnum;
default:
return num;
}
}
static int
rs6000_dwarf2_reg_to_regnum (int num)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
if (0 <= num && num <= 31)
return tdep->ppc_gp0_regnum + num;
else if (32 <= num && num <= 63)
return tdep->ppc_fp0_regnum + (num - 32);
else if (1124 <= num && num < 1124 + 32)
return tdep->ppc_vr0_regnum + (num - 1124);
else if (1200 <= num && num < 1200 + 32)
return tdep->ppc_ev0_regnum + (num - 1200);
else
switch (num)
{
case 67:
return tdep->ppc_vrsave_regnum - 1;
case 99:
return tdep->ppc_acc_regnum;
case 100:
return tdep->ppc_mq_regnum;
case 101:
return tdep->ppc_xer_regnum;
case 108:
return tdep->ppc_lr_regnum;
case 109:
return tdep->ppc_ctr_regnum;
case 356:
return tdep->ppc_vrsave_regnum;
case 612:
return tdep->ppc_spefscr_regnum;
default:
return num;
}
}
static void
rs6000_store_return_value (struct type *type,
struct regcache *regcache,
const gdb_byte *valbuf)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
int regnum = -1;
gdb_assert (ppc_floating_point_unit_p (gdbarch));
if (TYPE_CODE (type) == TYPE_CODE_FLT)
regnum = tdep->ppc_fp0_regnum + 1;
else if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
{
if (TYPE_LENGTH (type) == 16
&& TYPE_VECTOR (type))
regnum = tdep->ppc_vr0_regnum + 2;
else
internal_error (__FILE__, __LINE__,
_("rs6000_store_return_value: "
"unexpected array return type"));
}
else
regnum = tdep->ppc_gp0_regnum + 3;
{
size_t bytes_written = 0;
while (bytes_written < TYPE_LENGTH (type))
{
size_t bytes_to_write = min (TYPE_LENGTH (type) - bytes_written,
register_size (gdbarch, regnum));
regcache_cooked_write_part (regcache, regnum,
0, bytes_to_write,
valbuf + bytes_written);
regnum++;
bytes_written += bytes_to_write;
}
}
}
static CORE_ADDR
rs6000_extract_struct_value_address (struct regcache *regcache)
{
return 0;
}
void
rs6000_create_inferior (int pid)
{
if (rs6000_set_host_arch_hook)
rs6000_set_host_arch_hook (pid);
}
static CORE_ADDR
rs6000_convert_from_func_ptr_addr (struct gdbarch *gdbarch,
CORE_ADDR addr,
struct target_ops *targ)
{
struct obj_section *s;
s = find_pc_section (addr);
if (s && s->the_bfd_section->flags & SEC_CODE)
return addr;
return read_memory_addr (addr, gdbarch_tdep (current_gdbarch)->wordsize);
}
#define STR(s) #s
#define R(name) { STR(name), 4, 8, 0, 0, -1 }
#define R4(name) { STR(name), 4, 4, 0, 0, -1 }
#define R8(name) { STR(name), 8, 8, 0, 0, -1 }
#define R16(name) { STR(name), 16, 16, 0, 0, -1 }
#define F(name) { STR(name), 8, 8, 1, 0, -1 }
#define P8(name) { STR(name), 8, 8, 0, 1, -1 }
#define R32(name) { STR(name), 4, 0, 0, 0, -1 }
#define R64(name) { STR(name), 0, 8, 0, 0, -1 }
#define R0 { 0, 0, 0, 0, 0, -1 }
#define A4 { 0, 4, 4, 0, 0, -1 }
#define S(name) { STR(name), 4, 8, 0, 0, ppc_spr_ ## name }
#define S4(name) { STR(name), 4, 4, 0, 0, ppc_spr_ ## name }
#define SN4(name, number) { STR(name), 4, 4, 0, 0, (number) }
#define S64(name) { STR(name), 0, 8, 0, 0, ppc_spr_ ## name }
#define COMMON_UISA_REGS \
R(r0), R(r1), R(r2), R(r3), R(r4), R(r5), R(r6), R(r7), \
R(r8), R(r9), R(r10),R(r11),R(r12),R(r13),R(r14),R(r15), \
R(r16),R(r17),R(r18),R(r19),R(r20),R(r21),R(r22),R(r23), \
R(r24),R(r25),R(r26),R(r27),R(r28),R(r29),R(r30),R(r31), \
F(f0), F(f1), F(f2), F(f3), F(f4), F(f5), F(f6), F(f7), \
F(f8), F(f9), F(f10),F(f11),F(f12),F(f13),F(f14),F(f15), \
F(f16),F(f17),F(f18),F(f19),F(f20),F(f21),F(f22),F(f23), \
F(f24),F(f25),F(f26),F(f27),F(f28),F(f29),F(f30),F(f31), \
R(pc), R(ps)
#define PPC_UISA_SPRS \
R4(cr), S(lr), S(ctr), S4(xer), R4(fpscr)
#define PPC_UISA_NOFP_SPRS \
R4(cr), S(lr), S(ctr), S4(xer), R0
#define PPC_SEGMENT_REGS \
R32(sr0), R32(sr1), R32(sr2), R32(sr3), \
R32(sr4), R32(sr5), R32(sr6), R32(sr7), \
R32(sr8), R32(sr9), R32(sr10), R32(sr11), \
R32(sr12), R32(sr13), R32(sr14), R32(sr15)
#define PPC_OEA_SPRS \
S4(pvr), \
S(ibat0u), S(ibat0l), S(ibat1u), S(ibat1l), \
S(ibat2u), S(ibat2l), S(ibat3u), S(ibat3l), \
S(dbat0u), S(dbat0l), S(dbat1u), S(dbat1l), \
S(dbat2u), S(dbat2l), S(dbat3u), S(dbat3l), \
S(sdr1), S64(asr), S(dar), S4(dsisr), \
S(sprg0), S(sprg1), S(sprg2), S(sprg3), \
S(srr0), S(srr1), S(tbl), S(tbu), \
S4(dec), S(dabr), S4(ear)
#define PPC_ALTIVEC_REGS \
R16(vr0), R16(vr1), R16(vr2), R16(vr3), R16(vr4), R16(vr5), R16(vr6), R16(vr7), \
R16(vr8), R16(vr9), R16(vr10),R16(vr11),R16(vr12),R16(vr13),R16(vr14),R16(vr15), \
R16(vr16),R16(vr17),R16(vr18),R16(vr19),R16(vr20),R16(vr21),R16(vr22),R16(vr23), \
R16(vr24),R16(vr25),R16(vr26),R16(vr27),R16(vr28),R16(vr29),R16(vr30),R16(vr31), \
R4(vscr), R4(vrsave)
#define PPC_SPE_GP_REGS \
R4(r0), R4(r1), R4(r2), R4(r3), R4(r4), R4(r5), R4(r6), R4(r7), \
R4(r8), R4(r9), R4(r10),R4(r11),R4(r12),R4(r13),R4(r14),R4(r15), \
R4(r16),R4(r17),R4(r18),R4(r19),R4(r20),R4(r21),R4(r22),R4(r23), \
R4(r24),R4(r25),R4(r26),R4(r27),R4(r28),R4(r29),R4(r30),R4(r31)
#define PPC_SPE_UPPER_GP_REGS \
A4, A4, A4, A4, A4, A4, A4, A4, \
A4, A4, A4, A4, A4, A4, A4, A4, \
A4, A4, A4, A4, A4, A4, A4, A4, \
A4, A4, A4, A4, A4, A4, A4, A4
#define PPC_EV_PSEUDO_REGS \
P8(ev0), P8(ev1), P8(ev2), P8(ev3), P8(ev4), P8(ev5), P8(ev6), P8(ev7), \
P8(ev8), P8(ev9), P8(ev10),P8(ev11),P8(ev12),P8(ev13),P8(ev14),P8(ev15),\
P8(ev16),P8(ev17),P8(ev18),P8(ev19),P8(ev20),P8(ev21),P8(ev22),P8(ev23),\
P8(ev24),P8(ev25),P8(ev26),P8(ev27),P8(ev28),P8(ev29),P8(ev30),P8(ev31)
static const struct reg registers_power[] =
{
COMMON_UISA_REGS,
R4(cnd), S(lr), S(cnt), S4(xer), S4(mq),
R4(fpscr)
};
static const struct reg registers_powerpc[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_ALTIVEC_REGS
};
static const struct reg registers_403[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_SEGMENT_REGS,
PPC_OEA_SPRS,
S(icdbdr), S(esr), S(dear), S(evpr),
S(cdbcr), S(tsr), SN4(tcr, ppc_spr_403_tcr), S(pit),
S(tbhi), S(tblo), S(srr2), S(srr3),
S(dbsr), S(dbcr), S(iac1), S(iac2),
S(dac1), S(dac2), S(dccr), S(iccr),
S(pbl1), S(pbu1), S(pbl2), S(pbu2)
};
static const struct reg registers_403GC[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_SEGMENT_REGS,
PPC_OEA_SPRS,
S(icdbdr), S(esr), S(dear), S(evpr),
S(cdbcr), S(tsr), SN4(tcr, ppc_spr_403_tcr), S(pit),
S(tbhi), S(tblo), S(srr2), S(srr3),
S(dbsr), S(dbcr), S(iac1), S(iac2),
S(dac1), S(dac2), S(dccr), S(iccr),
S(pbl1), S(pbu1), S(pbl2), S(pbu2),
S(zpr), S(pid), S(sgr), S(dcwr),
S(tbhu), S(tblu)
};
static const struct reg registers_505[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_SEGMENT_REGS,
PPC_OEA_SPRS,
S(eie), S(eid), S(nri)
};
static const struct reg registers_860[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_SEGMENT_REGS,
PPC_OEA_SPRS,
S(eie), S(eid), S(nri), S(cmpa),
S(cmpb), S(cmpc), S(cmpd), S(icr),
S(der), S(counta), S(countb), S(cmpe),
S(cmpf), S(cmpg), S(cmph), S(lctrl1),
S(lctrl2), S(ictrl), S(bar), S(ic_cst),
S(ic_adr), S(ic_dat), S(dc_cst), S(dc_adr),
S(dc_dat), S(dpdr), S(dpir), S(immr),
S(mi_ctr), S(mi_ap), S(mi_epn), S(mi_twc),
S(mi_rpn), S(md_ctr), S(m_casid), S(md_ap),
S(md_epn), S(m_twb), S(md_twc), S(md_rpn),
S(m_tw), S(mi_dbcam), S(mi_dbram0), S(mi_dbram1),
S(md_dbcam), S(md_dbram0), S(md_dbram1)
};
static const struct reg registers_601[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_SEGMENT_REGS,
PPC_OEA_SPRS,
S(hid0), S(hid1), S(iabr), S(dabr),
S(pir), S(mq), S(rtcu), S(rtcl)
};
static const struct reg registers_602[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_SEGMENT_REGS,
PPC_OEA_SPRS,
S(hid0), S(hid1), S(iabr), R0,
R0, SN4(tcr, ppc_spr_602_tcr), S(ibr), S(esasrr),
S(sebr), S(ser), S(sp), S(lt)
};
static const struct reg registers_603[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_SEGMENT_REGS,
PPC_OEA_SPRS,
S(hid0), S(hid1), S(iabr), R0,
R0, S(dmiss), S(dcmp), S(hash1),
S(hash2), S(imiss), S(icmp), S(rpa)
};
static const struct reg registers_604[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_SEGMENT_REGS,
PPC_OEA_SPRS,
S(hid0), S(hid1), S(iabr), S(dabr),
S(pir), S(mmcr0), S(pmc1), S(pmc2),
S(sia), S(sda)
};
static const struct reg registers_750[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_SEGMENT_REGS,
PPC_OEA_SPRS,
S(hid0), S(hid1), S(iabr), S(dabr),
R0, S(ummcr0), S(upmc1), S(upmc2),
S(usia), S(ummcr1), S(upmc3), S(upmc4),
S(mmcr0), S(pmc1), S(pmc2), S(sia),
S(mmcr1), S(pmc3), S(pmc4), S(l2cr),
S(ictc), S(thrm1), S(thrm2), S(thrm3)
};
static const struct reg registers_7400[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS,
PPC_SEGMENT_REGS,
PPC_OEA_SPRS,
PPC_ALTIVEC_REGS
};
static const struct reg registers_e500[] =
{
PPC_SPE_GP_REGS,
PPC_SPE_UPPER_GP_REGS,
R(pc), R(ps),
PPC_UISA_NOFP_SPRS,
R8(acc), S4(spefscr),
PPC_EV_PSEUDO_REGS
};
struct variant
{
char *name;
char *description;
enum bfd_architecture arch;
unsigned long mach;
int nregs;
int npregs;
int num_tot_regs;
const struct reg *regs;
};
#define tot_num_registers(list) (sizeof (list) / sizeof((list)[0]))
static int
num_registers (const struct reg *reg_list, int num_tot_regs)
{
int i;
int nregs = 0;
for (i = 0; i < num_tot_regs; i++)
if (!reg_list[i].pseudo)
nregs++;
return nregs;
}
static int
num_pseudo_registers (const struct reg *reg_list, int num_tot_regs)
{
int i;
int npregs = 0;
for (i = 0; i < num_tot_regs; i++)
if (reg_list[i].pseudo)
npregs ++;
return npregs;
}
static struct variant variants[] =
{
{"powerpc", "PowerPC user-level", bfd_arch_powerpc,
bfd_mach_ppc, -1, -1, tot_num_registers (registers_powerpc),
registers_powerpc},
{"power", "POWER user-level", bfd_arch_rs6000,
bfd_mach_rs6k, -1, -1, tot_num_registers (registers_power),
registers_power},
{"403", "IBM PowerPC 403", bfd_arch_powerpc,
bfd_mach_ppc_403, -1, -1, tot_num_registers (registers_403),
registers_403},
{"601", "Motorola PowerPC 601", bfd_arch_powerpc,
bfd_mach_ppc_601, -1, -1, tot_num_registers (registers_601),
registers_601},
{"602", "Motorola PowerPC 602", bfd_arch_powerpc,
bfd_mach_ppc_602, -1, -1, tot_num_registers (registers_602),
registers_602},
{"603", "Motorola/IBM PowerPC 603 or 603e", bfd_arch_powerpc,
bfd_mach_ppc_603, -1, -1, tot_num_registers (registers_603),
registers_603},
{"604", "Motorola PowerPC 604 or 604e", bfd_arch_powerpc,
604, -1, -1, tot_num_registers (registers_604),
registers_604},
{"403GC", "IBM PowerPC 403GC", bfd_arch_powerpc,
bfd_mach_ppc_403gc, -1, -1, tot_num_registers (registers_403GC),
registers_403GC},
{"505", "Motorola PowerPC 505", bfd_arch_powerpc,
bfd_mach_ppc_505, -1, -1, tot_num_registers (registers_505),
registers_505},
{"860", "Motorola PowerPC 860 or 850", bfd_arch_powerpc,
bfd_mach_ppc_860, -1, -1, tot_num_registers (registers_860),
registers_860},
{"750", "Motorola/IBM PowerPC 750 or 740", bfd_arch_powerpc,
bfd_mach_ppc_750, -1, -1, tot_num_registers (registers_750),
registers_750},
{"7400", "Motorola/IBM PowerPC 7400 (G4)", bfd_arch_powerpc,
bfd_mach_ppc_7400, -1, -1, tot_num_registers (registers_7400),
registers_7400},
{"e500", "Motorola PowerPC e500", bfd_arch_powerpc,
bfd_mach_ppc_e500, -1, -1, tot_num_registers (registers_e500),
registers_e500},
{"powerpc64", "PowerPC 64-bit user-level", bfd_arch_powerpc,
bfd_mach_ppc64, -1, -1, tot_num_registers (registers_powerpc),
registers_powerpc},
{"620", "Motorola PowerPC 620", bfd_arch_powerpc,
bfd_mach_ppc_620, -1, -1, tot_num_registers (registers_powerpc),
registers_powerpc},
{"630", "Motorola PowerPC 630", bfd_arch_powerpc,
bfd_mach_ppc_630, -1, -1, tot_num_registers (registers_powerpc),
registers_powerpc},
{"a35", "PowerPC A35", bfd_arch_powerpc,
bfd_mach_ppc_a35, -1, -1, tot_num_registers (registers_powerpc),
registers_powerpc},
{"rs64ii", "PowerPC rs64ii", bfd_arch_powerpc,
bfd_mach_ppc_rs64ii, -1, -1, tot_num_registers (registers_powerpc),
registers_powerpc},
{"rs64iii", "PowerPC rs64iii", bfd_arch_powerpc,
bfd_mach_ppc_rs64iii, -1, -1, tot_num_registers (registers_powerpc),
registers_powerpc},
{"rs1", "IBM POWER RS1", bfd_arch_rs6000,
bfd_mach_rs6k_rs1, -1, -1, tot_num_registers (registers_power),
registers_power},
{"rsc", "IBM POWER RSC", bfd_arch_rs6000,
bfd_mach_rs6k_rsc, -1, -1, tot_num_registers (registers_power),
registers_power},
{"rs2", "IBM POWER RS2", bfd_arch_rs6000,
bfd_mach_rs6k_rs2, -1, -1, tot_num_registers (registers_power),
registers_power},
{0, 0, 0, 0, 0, 0, 0, 0}
};
static void
init_variants (void)
{
struct variant *v;
for (v = variants; v->name; v++)
{
if (v->nregs == -1)
v->nregs = num_registers (v->regs, v->num_tot_regs);
if (v->npregs == -1)
v->npregs = num_pseudo_registers (v->regs, v->num_tot_regs);
}
}
static const struct variant *
find_variant_by_arch (enum bfd_architecture arch, unsigned long mach)
{
const struct variant *v;
for (v = variants; v->name; v++)
if (arch == v->arch && mach == v->mach)
return v;
return NULL;
}
static int
gdb_print_insn_powerpc (bfd_vma memaddr, disassemble_info *info)
{
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
return print_insn_big_powerpc (memaddr, info);
else
return print_insn_little_powerpc (memaddr, info);
}
static CORE_ADDR
rs6000_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
{
return frame_unwind_register_unsigned (next_frame, PC_REGNUM);
}
static struct frame_id
rs6000_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
{
return frame_id_build (frame_unwind_register_unsigned (next_frame,
SP_REGNUM),
frame_pc_unwind (next_frame));
}
struct rs6000_frame_cache
{
CORE_ADDR base;
CORE_ADDR initial_sp;
struct trad_frame_saved_reg *saved_regs;
};
static struct rs6000_frame_cache *
rs6000_frame_cache (struct frame_info *next_frame, void **this_cache)
{
struct rs6000_frame_cache *cache;
struct gdbarch *gdbarch = get_frame_arch (next_frame);
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
struct rs6000_framedata fdata;
int wordsize = tdep->wordsize;
if ((*this_cache) != NULL)
return (*this_cache);
cache = FRAME_OBSTACK_ZALLOC (struct rs6000_frame_cache);
(*this_cache) = cache;
cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
skip_prologue (frame_func_unwind (next_frame), frame_pc_unwind (next_frame),
&fdata);
if (fdata.saved_fpr == 0
&& fdata.saved_gpr == 0
&& fdata.saved_vr == 0
&& fdata.saved_ev == 0
&& fdata.lr_offset == 0
&& fdata.cr_offset == 0
&& fdata.vr_offset == 0
&& fdata.ev_offset == 0)
cache->base = frame_unwind_register_unsigned (next_frame, SP_REGNUM);
else
{
cache->base = frame_unwind_register_unsigned (next_frame, SP_REGNUM);
if (!fdata.frameless)
cache->base = read_memory_addr (cache->base, wordsize);
}
trad_frame_set_value (cache->saved_regs, SP_REGNUM, cache->base);
if (fdata.saved_fpr >= 0)
{
int i;
CORE_ADDR fpr_addr = cache->base + fdata.fpr_offset;
if (ppc_floating_point_unit_p (gdbarch))
for (i = fdata.saved_fpr; i < ppc_num_fprs; i++)
{
cache->saved_regs[tdep->ppc_fp0_regnum + i].addr = fpr_addr;
fpr_addr += 8;
}
}
if (fdata.saved_gpr >= 0)
{
int i;
CORE_ADDR gpr_addr = cache->base + fdata.gpr_offset;
for (i = fdata.saved_gpr; i < ppc_num_gprs; i++)
{
cache->saved_regs[tdep->ppc_gp0_regnum + i].addr = gpr_addr;
gpr_addr += wordsize;
}
}
if (tdep->ppc_vr0_regnum != -1 && tdep->ppc_vrsave_regnum != -1)
{
if (fdata.saved_vr >= 0)
{
int i;
CORE_ADDR vr_addr = cache->base + fdata.vr_offset;
for (i = fdata.saved_vr; i < 32; i++)
{
cache->saved_regs[tdep->ppc_vr0_regnum + i].addr = vr_addr;
vr_addr += register_size (gdbarch, tdep->ppc_vr0_regnum);
}
}
}
if (tdep->ppc_ev0_regnum != -1 && tdep->ppc_ev31_regnum != -1)
{
if (fdata.saved_ev >= 0)
{
int i;
CORE_ADDR ev_addr = cache->base + fdata.ev_offset;
for (i = fdata.saved_ev; i < ppc_num_gprs; i++)
{
cache->saved_regs[tdep->ppc_ev0_regnum + i].addr = ev_addr;
cache->saved_regs[tdep->ppc_gp0_regnum + i].addr = ev_addr + 4;
ev_addr += register_size (gdbarch, tdep->ppc_ev0_regnum);
}
}
}
if (fdata.cr_offset != 0)
cache->saved_regs[tdep->ppc_cr_regnum].addr = cache->base + fdata.cr_offset;
if (fdata.lr_offset != 0)
cache->saved_regs[tdep->ppc_lr_regnum].addr = cache->base + fdata.lr_offset;
cache->saved_regs[PC_REGNUM] = cache->saved_regs[tdep->ppc_lr_regnum];
if (fdata.vrsave_offset != 0)
cache->saved_regs[tdep->ppc_vrsave_regnum].addr = cache->base + fdata.vrsave_offset;
if (fdata.alloca_reg < 0)
cache->initial_sp = frame_unwind_register_unsigned (next_frame, SP_REGNUM);
else
cache->initial_sp = frame_unwind_register_unsigned (next_frame,
fdata.alloca_reg);
return cache;
}
static void
rs6000_frame_this_id (struct frame_info *next_frame, void **this_cache,
struct frame_id *this_id)
{
struct rs6000_frame_cache *info = rs6000_frame_cache (next_frame,
this_cache);
(*this_id) = frame_id_build (info->base, frame_func_unwind (next_frame));
}
static void
rs6000_frame_prev_register (struct frame_info *next_frame,
void **this_cache,
int regnum, int *optimizedp,
enum lval_type *lvalp, CORE_ADDR *addrp,
int *realnump, gdb_byte *valuep)
{
struct rs6000_frame_cache *info = rs6000_frame_cache (next_frame,
this_cache);
trad_frame_get_prev_register (next_frame, info->saved_regs, regnum,
optimizedp, lvalp, addrp, realnump, valuep);
}
static const struct frame_unwind rs6000_frame_unwind =
{
NORMAL_FRAME,
rs6000_frame_this_id,
rs6000_frame_prev_register
};
static const struct frame_unwind *
rs6000_frame_sniffer (struct frame_info *next_frame)
{
return &rs6000_frame_unwind;
}
static CORE_ADDR
rs6000_frame_base_address (struct frame_info *next_frame,
void **this_cache)
{
struct rs6000_frame_cache *info = rs6000_frame_cache (next_frame,
this_cache);
return info->initial_sp;
}
static const struct frame_base rs6000_frame_base = {
&rs6000_frame_unwind,
rs6000_frame_base_address,
rs6000_frame_base_address,
rs6000_frame_base_address
};
static const struct frame_base *
rs6000_frame_base_sniffer (struct frame_info *next_frame)
{
return &rs6000_frame_base;
}
static struct gdbarch *
rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch *gdbarch;
struct gdbarch_tdep *tdep;
int wordsize, from_xcoff_exec, from_elf_exec, i, off;
struct reg *regs;
const struct variant *v;
enum bfd_architecture arch;
unsigned long mach;
bfd abfd;
int sysv_abi;
asection *sect;
from_xcoff_exec = info.abfd && info.abfd->format == bfd_object &&
bfd_get_flavour (info.abfd) == bfd_target_xcoff_flavour;
from_elf_exec = info.abfd && info.abfd->format == bfd_object &&
bfd_get_flavour (info.abfd) == bfd_target_elf_flavour;
sysv_abi = info.abfd && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour;
if (from_xcoff_exec)
{
if (bfd_xcoff_is_xcoff64 (info.abfd))
wordsize = 8;
else
wordsize = 4;
}
else if (from_elf_exec)
{
if (elf_elfheader (info.abfd)->e_ident[EI_CLASS] == ELFCLASS64)
wordsize = 8;
else
wordsize = 4;
}
else
{
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;
}
for (arches = gdbarch_list_lookup_by_info (arches, &info);
arches != NULL;
arches = gdbarch_list_lookup_by_info (arches->next, &info))
{
tdep = gdbarch_tdep (arches->gdbarch);
if (tdep && tdep->wordsize == wordsize)
return arches->gdbarch;
}
if (!from_xcoff_exec)
{
arch = info.bfd_arch_info->arch;
mach = info.bfd_arch_info->mach;
}
else
{
arch = bfd_arch_powerpc;
bfd_default_set_arch_mach (&abfd, arch, 0);
info.bfd_arch_info = bfd_get_arch_info (&abfd);
mach = info.bfd_arch_info->mach;
}
tdep = xmalloc (sizeof (struct gdbarch_tdep));
tdep->wordsize = wordsize;
if (info.abfd)
{
sect = bfd_get_section_by_name (info.abfd, ".PPC.EMB.apuinfo");
if (sect)
{
arch = info.bfd_arch_info->arch;
mach = bfd_mach_ppc_e500;
bfd_default_set_arch_mach (&abfd, arch, mach);
info.bfd_arch_info = bfd_get_arch_info (&abfd);
}
}
gdbarch = gdbarch_alloc (&info, tdep);
init_variants ();
v = find_variant_by_arch (arch, mach);
if (!v)
return NULL;
tdep->regs = v->regs;
tdep->ppc_gp0_regnum = 0;
tdep->ppc_toc_regnum = 2;
tdep->ppc_ps_regnum = 65;
tdep->ppc_cr_regnum = 66;
tdep->ppc_lr_regnum = 67;
tdep->ppc_ctr_regnum = 68;
tdep->ppc_xer_regnum = 69;
if (v->mach == bfd_mach_ppc_601)
tdep->ppc_mq_regnum = 124;
else if (arch == bfd_arch_rs6000)
tdep->ppc_mq_regnum = 70;
else
tdep->ppc_mq_regnum = -1;
tdep->ppc_fp0_regnum = 32;
tdep->ppc_fpscr_regnum = (arch == bfd_arch_rs6000) ? 71 : 70;
tdep->ppc_sr0_regnum = 71;
tdep->ppc_vr0_regnum = -1;
tdep->ppc_vrsave_regnum = -1;
tdep->ppc_ev0_upper_regnum = -1;
tdep->ppc_ev0_regnum = -1;
tdep->ppc_ev31_regnum = -1;
tdep->ppc_acc_regnum = -1;
tdep->ppc_spefscr_regnum = -1;
set_gdbarch_pc_regnum (gdbarch, 64);
set_gdbarch_sp_regnum (gdbarch, 1);
set_gdbarch_deprecated_fp_regnum (gdbarch, 1);
set_gdbarch_register_sim_regno (gdbarch, rs6000_register_sim_regno);
if (sysv_abi && wordsize == 8)
set_gdbarch_return_value (gdbarch, ppc64_sysv_abi_return_value);
else if (sysv_abi && wordsize == 4)
set_gdbarch_return_value (gdbarch, ppc_sysv_abi_return_value);
else
{
set_gdbarch_deprecated_extract_return_value (gdbarch, rs6000_extract_return_value);
set_gdbarch_store_return_value (gdbarch, rs6000_store_return_value);
}
if (wordsize == 8)
tdep->lr_frame_offset = 16;
else if (sysv_abi)
tdep->lr_frame_offset = 4;
else
tdep->lr_frame_offset = 8;
if (v->arch == bfd_arch_rs6000)
tdep->ppc_sr0_regnum = -1;
else if (v->arch == bfd_arch_powerpc)
switch (v->mach)
{
case bfd_mach_ppc:
tdep->ppc_sr0_regnum = -1;
tdep->ppc_vr0_regnum = 71;
tdep->ppc_vrsave_regnum = 104;
break;
case bfd_mach_ppc_7400:
tdep->ppc_vr0_regnum = 119;
tdep->ppc_vrsave_regnum = 152;
break;
case bfd_mach_ppc_e500:
tdep->ppc_toc_regnum = -1;
tdep->ppc_ev0_upper_regnum = 32;
tdep->ppc_ev0_regnum = 73;
tdep->ppc_ev31_regnum = 104;
tdep->ppc_acc_regnum = 71;
tdep->ppc_spefscr_regnum = 72;
tdep->ppc_fp0_regnum = -1;
tdep->ppc_fpscr_regnum = -1;
tdep->ppc_sr0_regnum = -1;
set_gdbarch_pseudo_register_read (gdbarch, e500_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, e500_pseudo_register_write);
set_gdbarch_register_reggroup_p (gdbarch, e500_register_reggroup_p);
break;
case bfd_mach_ppc64:
case bfd_mach_ppc_620:
case bfd_mach_ppc_630:
case bfd_mach_ppc_a35:
case bfd_mach_ppc_rs64ii:
case bfd_mach_ppc_rs64iii:
tdep->ppc_sr0_regnum = -1;
break;
}
else
internal_error (__FILE__, __LINE__,
_("rs6000_gdbarch_init: "
"received unexpected BFD 'arch' value"));
gdb_assert (strcmp (tdep->regs[tdep->ppc_gp0_regnum].name, "r0") == 0);
if (arch == bfd_arch_rs6000)
set_gdbarch_print_insn (gdbarch, print_insn_rs6000);
else
set_gdbarch_print_insn (gdbarch, gdb_print_insn_powerpc);
set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
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_register_type (gdbarch, rs6000_register_type);
set_gdbarch_register_reggroup_p (gdbarch, rs6000_register_reggroup_p);
set_gdbarch_ptr_bit (gdbarch, wordsize * TARGET_CHAR_BIT);
set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
set_gdbarch_int_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_long_bit (gdbarch, wordsize * TARGET_CHAR_BIT);
set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
set_gdbarch_float_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
if (sysv_abi)
set_gdbarch_long_double_bit (gdbarch, 16 * TARGET_CHAR_BIT);
else
set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
set_gdbarch_char_signed (gdbarch, 0);
set_gdbarch_frame_align (gdbarch, rs6000_frame_align);
if (sysv_abi && wordsize == 8)
set_gdbarch_frame_red_zone_size (gdbarch, 288);
else if (!sysv_abi && wordsize == 4)
set_gdbarch_frame_red_zone_size (gdbarch, 224);
set_gdbarch_convert_register_p (gdbarch, rs6000_convert_register_p);
set_gdbarch_register_to_value (gdbarch, rs6000_register_to_value);
set_gdbarch_value_to_register (gdbarch, rs6000_value_to_register);
set_gdbarch_stab_reg_to_regnum (gdbarch, rs6000_stab_reg_to_regnum);
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, rs6000_dwarf2_reg_to_regnum);
if (sysv_abi && wordsize == 4)
set_gdbarch_push_dummy_call (gdbarch, ppc_sysv_abi_push_dummy_call);
else if (sysv_abi && wordsize == 8)
set_gdbarch_push_dummy_call (gdbarch, ppc64_sysv_abi_push_dummy_call);
else
set_gdbarch_push_dummy_call (gdbarch, rs6000_push_dummy_call);
set_gdbarch_deprecated_extract_struct_value_address (gdbarch, rs6000_extract_struct_value_address);
set_gdbarch_skip_prologue (gdbarch, rs6000_skip_prologue);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
set_gdbarch_breakpoint_from_pc (gdbarch, rs6000_breakpoint_from_pc);
if (sysv_abi && wordsize == 8)
set_gdbarch_adjust_breakpoint_address (gdbarch, ppc64_sysv_abi_adjust_breakpoint_address);
set_gdbarch_frame_args_skip (gdbarch, 8);
if (!sysv_abi)
set_gdbarch_deprecated_use_struct_convention (gdbarch, rs6000_use_struct_convention);
if (!sysv_abi)
{
set_gdbarch_convert_from_func_ptr_addr (gdbarch,
rs6000_convert_from_func_ptr_addr);
}
set_gdbarch_fetch_pointer_argument (gdbarch, rs6000_fetch_pointer_argument);
gdbarch_init_osabi (info, gdbarch);
switch (info.osabi)
{
case GDB_OSABI_NETBSD_AOUT:
case GDB_OSABI_NETBSD_ELF:
case GDB_OSABI_UNKNOWN:
case GDB_OSABI_LINUX:
set_gdbarch_unwind_pc (gdbarch, rs6000_unwind_pc);
frame_unwind_append_sniffer (gdbarch, rs6000_frame_sniffer);
set_gdbarch_unwind_dummy_id (gdbarch, rs6000_unwind_dummy_id);
frame_base_append_sniffer (gdbarch, rs6000_frame_base_sniffer);
break;
default:
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
set_gdbarch_unwind_pc (gdbarch, rs6000_unwind_pc);
frame_unwind_append_sniffer (gdbarch, rs6000_frame_sniffer);
set_gdbarch_unwind_dummy_id (gdbarch, rs6000_unwind_dummy_id);
frame_base_append_sniffer (gdbarch, rs6000_frame_base_sniffer);
}
if (from_xcoff_exec)
{
set_gdbarch_software_single_step (gdbarch, rs6000_software_single_step);
}
init_sim_regno_table (gdbarch);
return gdbarch;
}
static void
rs6000_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
if (tdep == NULL)
return;
}
static struct cmd_list_element *info_powerpc_cmdlist = NULL;
static void
rs6000_info_powerpc_command (char *args, int from_tty)
{
help_list (info_powerpc_cmdlist, "info powerpc ", class_info, gdb_stdout);
}
extern initialize_file_ftype _initialize_rs6000_tdep;
void
_initialize_rs6000_tdep (void)
{
#ifdef TM_NEXTSTEP
return;
#endif
gdbarch_register (bfd_arch_rs6000, rs6000_gdbarch_init, rs6000_dump_tdep);
gdbarch_register (bfd_arch_powerpc, rs6000_gdbarch_init, rs6000_dump_tdep);
add_prefix_cmd ("powerpc", class_info, rs6000_info_powerpc_command,
_("Various POWERPC info specific commands."),
&info_powerpc_cmdlist, "info powerpc ", 0, &infolist);
}