/* Target-dependent code for GDB, the GNU debugger.
Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000, 2001, 2002
+ 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
This file is part of GDB.
#include "doublest.h"
#include "value.h"
#include "parser-defs.h"
+#include "osabi.h"
#include "libbfd.h" /* for bfd_default_set_arch_mach */
#include "coff/internal.h" /* for libcoff.h */
#include "solib-svr4.h"
#include "ppc-tdep.h"
+#include "gdb_assert.h"
+#include "dis-asm.h"
+
/* If the kernel has to deliver a signal, it pushes a sigcontext
structure on the stack and then calls the signal handler, passing
the address of the sigcontext in an argument register. Usually
int saved_gpr; /* smallest # of saved gpr */
int saved_fpr; /* smallest # of saved fpr */
int saved_vr; /* smallest # of saved vr */
+ int saved_ev; /* smallest # of saved ev */
int alloca_reg; /* alloca register number (frame ptr) */
char frameless; /* true if frameless functions. */
char nosavedpc; /* true if pc not saved. */
int gpr_offset; /* offset of saved gprs from prev sp */
int fpr_offset; /* offset of saved fprs from prev sp */
int vr_offset; /* offset of saved vrs from prev sp */
+ int ev_offset; /* offset of saved evs from prev sp */
int lr_offset; /* offset of saved lr */
int cr_offset; /* offset of saved cr */
int vrsave_offset; /* offset of saved vrsave register */
struct rs6000_framedata * fdatap);
static CORE_ADDR frame_initial_stack_address (struct frame_info *);
+/* Is REGNO an AltiVec register? Return 1 if so, 0 otherwise. */
+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);
+}
+
+/* Use the architectures FP registers? */
+int
+ppc_floating_point_unit_p (struct gdbarch *gdbarch)
+{
+ 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;
+}
+
/* Read a LEN-byte address from debugged memory address MEMADDR. */
static CORE_ADDR
void
rs6000_init_extra_frame_info (int fromleaf, struct frame_info *fi)
{
- fi->extra_info = (struct frame_extra_info *)
- frame_obstack_alloc (sizeof (struct frame_extra_info));
- fi->extra_info->initial_sp = 0;
- if (fi->next != (CORE_ADDR) 0
- && fi->pc < TEXT_SEGMENT_BASE)
+ struct frame_extra_info *extra_info =
+ frame_extra_info_zalloc (fi, sizeof (struct frame_extra_info));
+ extra_info->initial_sp = 0;
+ if (get_next_frame (fi) != NULL
+ && get_frame_pc (fi) < TEXT_SEGMENT_BASE)
/* We're in get_prev_frame */
/* and this is a special signal frame. */
/* (fi->pc will be some low address in the kernel, */
/* to which the signal handler returns). */
- fi->signal_handler_caller = 1;
+ deprecated_set_frame_type (fi, SIGTRAMP_FRAME);
}
/* Put here the code to store, into a struct frame_saved_regs,
static CORE_ADDR
rs6000_frame_args_address (struct frame_info *fi)
{
- if (fi->extra_info->initial_sp != 0)
- return fi->extra_info->initial_sp;
+ struct frame_extra_info *extra_info = get_frame_extra_info (fi);
+ if (extra_info->initial_sp != 0)
+ return extra_info->initial_sp;
else
return frame_initial_stack_address (fi);
}
return read_register (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum);
}
+/* Get the ith function argument for the current function. */
+static CORE_ADDR
+rs6000_fetch_pointer_argument (struct frame_info *frame, int argi,
+ struct type *type)
+{
+ CORE_ADDR addr;
+ get_frame_register (frame, 3 + argi, &addr);
+ return addr;
+}
+
/* Calculate the destination of a branch/jump. Return -1 if not a branch. */
static CORE_ADDR
fi = get_current_frame ();
if (fi != NULL)
- dest = read_memory_addr (fi->frame + SIG_FRAME_PC_OFFSET,
+ dest = read_memory_addr (get_frame_base (fi) + SIG_FRAME_PC_OFFSET,
gdbarch_tdep (current_gdbarch)->wordsize);
}
}
/* Sequence of bytes for breakpoint instruction. */
-#define BIG_BREAKPOINT { 0x7d, 0x82, 0x10, 0x08 }
-#define LITTLE_BREAKPOINT { 0x08, 0x10, 0x82, 0x7d }
-
const static unsigned char *
rs6000_breakpoint_from_pc (CORE_ADDR *bp_addr, int *bp_size)
{
- static unsigned char big_breakpoint[] = BIG_BREAKPOINT;
- static unsigned char little_breakpoint[] = LITTLE_BREAKPOINT;
+ 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;
- saved_gpr is the number of the first saved gpr.
- saved_fpr is the number of the first saved fpr.
- saved_vr is the number of the first saved vr.
+ - saved_ev is the number of the first saved ev.
- alloca_reg is the number of the register used for alloca() handling.
Otherwise -1.
- gpr_offset is the offset of the first saved gpr from the previous frame.
- fpr_offset is the offset of the first saved fpr from the previous frame.
- vr_offset is the offset of the first saved vr from the previous frame.
+ - ev_offset is the offset of the first saved ev from the previous frame.
- lr_offset is the offset of the saved lr
- cr_offset is the offset of the saved cr
- vrsave_offset is the offset of the saved vrsave register
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;
-
+ const struct bfd_arch_info *arch_info = gdbarch_bfd_arch_info (current_gdbarch);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+
/* Attempt to find the end of the prologue when no limit is specified.
Note that refine_prologue_limit() has been written so that it may
be used to "refine" the limits of non-zero PC values too, but this
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;
if ((op & 0xfc1fffff) == 0x7c0802a6)
{ /* mflr Rx */
- lr_reg = (op & 0x03e00000) | 0x90010000;
+ lr_reg = (op & 0x03e00000);
continue;
}
else if ((op & 0xfc1fffff) == 0x7c000026)
{ /* mfcr Rx */
- cr_reg = (op & 0x03e00000) | 0x90010000;
+ cr_reg = (op & 0x03e00000);
continue;
}
{
fdata->saved_gpr = reg;
if ((op & 0xfc1f0003) == 0xf8010000)
- op = (op >> 1) << 1;
+ op &= ~3UL;
fdata->gpr_offset = SIGNED_SHORT (op) + offset;
}
continue;
}
else if ((op & 0xffff0000) == 0x60000000)
{
- /* nop */
+ /* nop */
/* Allow nops in the prologue, but do not consider them to
be part of the prologue unless followed by other prologue
instructions. */
continue;
}
- else if (lr_reg != -1 && (op & 0xffff0000) == lr_reg)
- { /* st Rx,NUM(r1)
- where Rx == lr */
- fdata->lr_offset = SIGNED_SHORT (op) + offset;
+ else if (lr_reg != -1 &&
+ /* std Rx, NUM(r1) || stdu Rx, NUM(r1) */
+ (((op & 0xffff0000) == (lr_reg | 0xf8010000)) ||
+ /* stw Rx, NUM(r1) */
+ ((op & 0xffff0000) == (lr_reg | 0x90010000)) ||
+ /* stwu Rx, NUM(r1) */
+ ((op & 0xffff0000) == (lr_reg | 0x94010000))))
+ { /* where Rx == lr */
+ fdata->lr_offset = offset;
fdata->nosavedpc = 0;
lr_reg = 0;
+ if ((op & 0xfc000003) == 0xf8000000 || /* std */
+ (op & 0xfc000000) == 0x90000000) /* stw */
+ {
+ /* Does not update r1, so add displacement to lr_offset. */
+ fdata->lr_offset += SIGNED_SHORT (op);
+ }
continue;
}
- else if (cr_reg != -1 && (op & 0xffff0000) == cr_reg)
- { /* st Rx,NUM(r1)
- where Rx == cr */
- fdata->cr_offset = SIGNED_SHORT (op) + offset;
+ else if (cr_reg != -1 &&
+ /* std Rx, NUM(r1) || stdu Rx, NUM(r1) */
+ (((op & 0xffff0000) == (cr_reg | 0xf8010000)) ||
+ /* stw Rx, NUM(r1) */
+ ((op & 0xffff0000) == (cr_reg | 0x90010000)) ||
+ /* stwu Rx, NUM(r1) */
+ ((op & 0xffff0000) == (cr_reg | 0x94010000))))
+ { /* where Rx == cr */
+ fdata->cr_offset = offset;
cr_reg = 0;
+ if ((op & 0xfc000003) == 0xf8000000 ||
+ (op & 0xfc000000) == 0x90000000)
+ {
+ /* Does not update r1, so add displacement to cr_offset. */
+ fdata->cr_offset += SIGNED_SHORT (op);
+ }
continue;
}
this branch */
continue;
- /* update stack pointer */
}
- else if ((op & 0xffff0000) == 0x94210000 || /* stu r1,NUM(r1) */
- (op & 0xffff0003) == 0xf8210001) /* stdu r1,NUM(r1) */
- {
+ /* update stack pointer */
+ else if ((op & 0xfc1f0000) == 0x94010000)
+ { /* stu rX,NUM(r1) || stwu rX,NUM(r1) */
fdata->frameless = 0;
- if ((op & 0xffff0003) == 0xf8210001)
- op = (op >> 1) << 1;
fdata->offset = SIGNED_SHORT (op);
offset = fdata->offset;
continue;
-
}
- else if (op == 0x7c21016e)
- { /* stwux 1,1,0 */
+ else if ((op & 0xfc1f016a) == 0x7c01016e)
+ { /* stwux rX,r1,rY */
+ /* no way to figure out what r1 is going to be */
+ fdata->frameless = 0;
+ offset = fdata->offset;
+ continue;
+ }
+ else if ((op & 0xfc1f0003) == 0xf8010001)
+ { /* stdu rX,NUM(r1) */
+ fdata->frameless = 0;
+ fdata->offset = SIGNED_SHORT (op & ~3UL);
+ offset = fdata->offset;
+ continue;
+ }
+ else if ((op & 0xfc1f016a) == 0x7c01016a)
+ { /* stdux rX,r1,rY */
+ /* no way to figure out what r1 is going to be */
fdata->frameless = 0;
offset = fdata->offset;
continue;
-
- /* Load up minimal toc pointer */
}
- else if ((op >> 22) == 0x20f
+ /* Load up minimal toc pointer */
+ else if (((op >> 22) == 0x20f || /* l r31,... or l r30,... */
+ (op >> 22) == 0x3af) /* ld r31,... or ld r30,... */
&& !minimal_toc_loaded)
- { /* l r31,... or l r30,... */
+ {
minimal_toc_loaded = 1;
continue;
else if ((op & 0xfc0007fe) == 0x7c000378 && /* mr(.) Rx,Ry */
(((op >> 21) & 31) >= 3) && /* R3 >= Ry >= R10 */
(((op >> 21) & 31) <= 10) &&
- (((op >> 16) & 31) >= fdata->saved_gpr)) /* Rx: local var reg */
+ ((long) ((op >> 16) & 31) >= fdata->saved_gpr)) /* Rx: local var reg */
{
continue;
{ /* mr r31, r1 */
fdata->frameless = 0;
framep = 1;
- fdata->alloca_reg = 31;
+ fdata->alloca_reg = (tdep->ppc_gp0_regnum + 31);
continue;
/* Another way to set up the frame pointer. */
{ /* addi rX, r1, 0x0 */
fdata->frameless = 0;
framep = 1;
- fdata->alloca_reg = (op & ~0x38010000) >> 21;
+ fdata->alloca_reg = (tdep->ppc_gp0_regnum
+ + ((op & ~0x38010000) >> 21));
continue;
}
/* AltiVec related instructions. */
in a pair of insns to save the vector registers on the
stack. */
/* 001110 00000 00000 iiii iiii iiii iiii */
- else if ((op & 0xffff0000) == 0x38000000) /* li r0, SIMM */
+ /* 001110 01110 00000 iiii iiii iiii iiii */
+ else if ((op & 0xffff0000) == 0x38000000 /* li r0, SIMM */
+ || (op & 0xffff0000) == 0x39c00000) /* li r14, SIMM */
{
li_found_pc = pc;
vr_saved_offset = SIGNED_SHORT (op);
}
}
/* End AltiVec related instructions. */
+
+ /* Start BookE related instructions. */
+ /* Store gen register S at (r31+uimm).
+ Any register less than r13 is volatile, so we don't care. */
+ /* 000100 sssss 11111 iiiii 01100100001 */
+ else if (arch_info->mach == bfd_mach_ppc_e500
+ && (op & 0xfc1f07ff) == 0x101f0321) /* evstdd Rs,uimm(R31) */
+ {
+ if ((op & 0x03e00000) >= 0x01a00000) /* Rs >= r13 */
+ {
+ unsigned int imm;
+ ev_reg = GET_SRC_REG (op);
+ imm = (op >> 11) & 0x1f;
+ ev_offset = imm * 8;
+ /* If this is the first vector reg to be saved, or if
+ it has a lower number than others previously seen,
+ reupdate the frame info. */
+ if (fdata->saved_ev == -1 || fdata->saved_ev > ev_reg)
+ {
+ fdata->saved_ev = ev_reg;
+ fdata->ev_offset = ev_offset + offset;
+ }
+ }
+ continue;
+ }
+ /* Store gen register rS at (r1+rB). */
+ /* 000100 sssss 00001 bbbbb 01100100000 */
+ else if (arch_info->mach == bfd_mach_ppc_e500
+ && (op & 0xffe007ff) == 0x13e00320) /* evstddx RS,R1,Rb */
+ {
+ if (pc == (li_found_pc + 4))
+ {
+ ev_reg = GET_SRC_REG (op);
+ /* If this is the first vector reg to be saved, or if
+ it has a lower number than others previously seen,
+ reupdate the frame info. */
+ /* We know the contents of rB from the previous instruction. */
+ 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;
+ }
+ /* Store gen register r31 at (rA+uimm). */
+ /* 000100 11111 aaaaa iiiii 01100100001 */
+ else if (arch_info->mach == bfd_mach_ppc_e500
+ && (op & 0xffe007ff) == 0x13e00321) /* evstdd R31,Ra,UIMM */
+ {
+ /* Wwe know that the source register is 31 already, but
+ it can't hurt to compute it. */
+ ev_reg = GET_SRC_REG (op);
+ ev_offset = ((op >> 11) & 0x1f) * 8;
+ /* If this is the first vector reg to be saved, or if
+ it has a lower number than others previously seen,
+ reupdate the frame info. */
+ if (fdata->saved_ev == -1 || fdata->saved_ev > ev_reg)
+ {
+ fdata->saved_ev = ev_reg;
+ fdata->ev_offset = ev_offset + offset;
+ }
+
+ continue;
+ }
+ /* Store gen register S at (r31+r0).
+ Store param on stack when offset from SP bigger than 4 bytes. */
+ /* 000100 sssss 11111 00000 01100100000 */
+ else if (arch_info->mach == bfd_mach_ppc_e500
+ && (op & 0xfc1fffff) == 0x101f0320) /* evstddx Rs,R31,R0 */
+ {
+ if (pc == (li_found_pc + 4))
+ {
+ if ((op & 0x03e00000) >= 0x01a00000)
+ {
+ ev_reg = GET_SRC_REG (op);
+ /* If this is the first vector reg to be saved, or if
+ it has a lower number than others previously seen,
+ reupdate the frame info. */
+ /* We know the contents of r0 from the previous
+ instruction. */
+ 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;
+ }
+ }
+ /* End BookE related instructions. */
+
else
{
/* Not a recognized prologue instruction.
trampolines. */
break;
if ((op & 0xf4000000) == 0x40000000) /* bxx */
- /* Never skip branches. */
+ /* Never skip branches. */
break;
if (num_skip_non_prologue_insns++ > max_skip_non_prologue_insns)
/* If the first thing after skipping a prolog is a branch to a function,
this might be a call to an initializer in main(), introduced by gcc2.
- We'd like to skip over it as well. Fortunately, xlc does some extra
+ We'd like to skip over it as well. Fortunately, xlc does some extra
work before calling a function right after a prologue, thus we can
- single out such gcc2 behaviour. */
+ single out such gcc2 behaviour. */
if ((op & 0xfc000001) == 0x48000001)
if (op == 0x4def7b82)
{ /* cror 0xf, 0xf, 0xf (nop) */
- /* check and see if we are in main. If so, skip over this initializer
- function as well. */
+ /* Check and see if we are in main. If so, skip over this
+ initializer function as well. */
tmp = find_pc_misc_function (pc);
if (tmp >= 0 && STREQ (misc_function_vector[tmp].name, main_name ()))
*************************************************************************/
-/* Pop the innermost frame, go back to the caller. */
+/* Pop the innermost frame, go back to the caller. */
static void
rs6000_pop_frame (void)
int ii, wordsize;
pc = read_pc ();
- sp = FRAME_FP (frame);
+ sp = get_frame_base (frame);
- if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame),
+ get_frame_base (frame),
+ get_frame_base (frame)))
{
generic_pop_dummy_frame ();
flush_cached_frames ();
}
/* Make sure that all registers are valid. */
- read_register_bytes (0, NULL, REGISTER_BYTES);
+ deprecated_read_register_bytes (0, NULL, DEPRECATED_REGISTER_BYTES);
- /* figure out previous %pc value. If the function is frameless, it is
+ /* Figure out previous %pc value. If the function is frameless, it is
still in the link register, otherwise walk the frames and retrieve the
- saved %pc value in the previous frame. */
+ saved %pc value in the previous frame. */
- addr = get_pc_function_start (frame->pc);
- (void) skip_prologue (addr, frame->pc, &fdata);
+ addr = get_frame_func (frame);
+ (void) skip_prologue (addr, get_frame_pc (frame), &fdata);
wordsize = gdbarch_tdep (current_gdbarch)->wordsize;
if (fdata.frameless)
/* reset %pc value. */
write_register (PC_REGNUM, lr);
- /* reset register values if any was saved earlier. */
+ /* reset register values if any was saved earlier. */
if (fdata.saved_gpr != -1)
{
addr = prev_sp + fdata.gpr_offset;
for (ii = fdata.saved_gpr; ii <= 31; ++ii)
{
- read_memory (addr, ®isters[REGISTER_BYTE (ii)], wordsize);
+ read_memory (addr, &deprecated_registers[DEPRECATED_REGISTER_BYTE (ii)],
+ wordsize);
addr += wordsize;
}
}
addr = prev_sp + fdata.fpr_offset;
for (ii = fdata.saved_fpr; ii <= 31; ++ii)
{
- read_memory (addr, ®isters[REGISTER_BYTE (ii + FP0_REGNUM)], 8);
+ read_memory (addr, &deprecated_registers[DEPRECATED_REGISTER_BYTE (ii + FP0_REGNUM)], 8);
addr += 8;
}
}
flush_cached_frames ();
}
-/* Fixup the call sequence of a dummy function, with the real function
- address. Its arguments will be passed by gdb. */
-
-static void
-rs6000_fix_call_dummy (char *dummyname, CORE_ADDR pc, CORE_ADDR fun,
- int nargs, struct value **args, struct type *type,
- int gcc_p)
+/* All the ABI's require 16 byte alignment. */
+static CORE_ADDR
+rs6000_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr)
{
- int ii;
- CORE_ADDR target_addr;
-
- if (rs6000_find_toc_address_hook != NULL)
- {
- CORE_ADDR tocvalue = (*rs6000_find_toc_address_hook) (fun);
- write_register (gdbarch_tdep (current_gdbarch)->ppc_toc_regnum,
- tocvalue);
- }
+ return (addr & -16);
}
/* Pass the arguments in either registers, or in the stack. In RS/6000,
the first eight words of the argument list (that might be less than
eight parameters if some parameters occupy more than one word) are
passed in r3..r10 registers. float and double parameters are
- passed in fpr's, in addition to that. Rest of the parameters if any
- are passed in user stack. There might be cases in which half of the
+ passed in fpr's, in addition to that. Rest of the parameters if any
+ are passed in user stack. There might be cases in which half of the
parameter is copied into registers, the other half is pushed into
stack.
If the function is returning a structure, then the return address is passed
in r3, then the first 7 words of the parameters can be passed in registers,
- starting from r4. */
+ starting from r4. */
static CORE_ADDR
-rs6000_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
- int struct_return, CORE_ADDR struct_addr)
+rs6000_push_dummy_call (struct gdbarch *gdbarch, CORE_ADDR func_addr,
+ 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; /* current argument number */
CORE_ADDR saved_sp;
- /* The first eight words of ther arguments are passed in registers. Copy
- them appropriately.
-
- If the function is returning a `struct', then the first word (which
- will be passed in r3) is used for struct return address. In that
- case we should advance one word and start from r4 register to copy
- parameters. */
+ /* The first eight words of ther arguments are passed in registers.
+ Copy them appropriately. */
+ ii = 0;
- ii = struct_return ? 1 : 0;
+ /* If the function is returning a `struct', then the first word
+ (which will be passed in r3) is used for struct return address.
+ In that case we should advance one word and start from r4
+ register to copy parameters. */
+ if (struct_return)
+ {
+ regcache_raw_write_unsigned (regcache, tdep->ppc_gp0_regnum + 3,
+ struct_addr);
+ ii++;
+ }
/*
effectively indirect call... gcc does...
for (argno = 0, argbytes = 0; argno < nargs && ii < 8; ++ii)
{
- int reg_size = REGISTER_RAW_SIZE (ii + 3);
+ int reg_size = DEPRECATED_REGISTER_RAW_SIZE (ii + 3);
arg = args[argno];
type = check_typedef (VALUE_TYPE (arg));
if (TYPE_CODE (type) == TYPE_CODE_FLT)
{
- /* floating point arguments are passed in fpr's, as well as gpr's.
+ /* Floating point arguments are passed in fpr's, as well as gpr's.
There are 13 fpr's reserved for passing parameters. At this point
- there is no way we would run out of them. */
+ there is no way we would run out of them. */
if (len > 8)
printf_unfiltered (
"Fatal Error: a floating point parameter #%d with a size > 8 is found!\n", argno);
- memcpy (®isters[REGISTER_BYTE (FP0_REGNUM + 1 + f_argno)],
+ memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (FP0_REGNUM + 1 + f_argno)],
VALUE_CONTENTS (arg),
len);
++f_argno;
if (len > reg_size)
{
- /* Argument takes more than one register. */
+ /* Argument takes more than one register. */
while (argbytes < len)
{
- memset (®isters[REGISTER_BYTE (ii + 3)], 0, reg_size);
- memcpy (®isters[REGISTER_BYTE (ii + 3)],
+ memset (&deprecated_registers[DEPRECATED_REGISTER_BYTE (ii + 3)], 0,
+ reg_size);
+ memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (ii + 3)],
((char *) VALUE_CONTENTS (arg)) + argbytes,
(len - argbytes) > reg_size
? reg_size : len - argbytes);
--ii;
}
else
- { /* Argument can fit in one register. No problem. */
+ {
+ /* Argument can fit in one register. No problem. */
int adj = TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? reg_size - len : 0;
- memset (®isters[REGISTER_BYTE (ii + 3)], 0, reg_size);
- memcpy ((char *)®isters[REGISTER_BYTE (ii + 3)] + adj,
+ memset (&deprecated_registers[DEPRECATED_REGISTER_BYTE (ii + 3)], 0, reg_size);
+ memcpy ((char *)&deprecated_registers[DEPRECATED_REGISTER_BYTE (ii + 3)] + adj,
VALUE_CONTENTS (arg), len);
}
++argno;
saved_sp = read_sp ();
- /* location for 8 parameters are always reserved. */
+ /* Location for 8 parameters are always reserved. */
sp -= wordsize * 8;
- /* another six words for back chain, TOC register, link register, etc. */
+ /* Another six words for back chain, TOC register, link register, etc. */
sp -= wordsize * 6;
- /* stack pointer must be quadword aligned */
+ /* Stack pointer must be quadword aligned. */
sp &= -16;
- /* if there are more arguments, allocate space for them in
- the stack, then push them starting from the ninth one. */
+ /* If there are more arguments, allocate space for them in
+ the stack, then push them starting from the ninth one. */
if ((argno < nargs) || argbytes)
{
space += ((TYPE_LENGTH (VALUE_TYPE (val))) + 3) & -4;
}
- /* add location required for the rest of the parameters */
+ /* Add location required for the rest of the parameters. */
space = (space + 15) & -16;
sp -= space;
- /* This is another instance we need to be concerned about securing our
- stack space. If we write anything underneath %sp (r1), we might conflict
- with the kernel who thinks he is free to use this area. So, update %sp
- first before doing anything else. */
-
- write_register (SP_REGNUM, sp);
-
- /* if the last argument copied into the registers didn't fit there
- completely, push the rest of it into stack. */
+ /* If the last argument copied into the registers didn't fit there
+ completely, push the rest of it into stack. */
if (argbytes)
{
ii += ((len - argbytes + 3) & -4) / 4;
}
- /* push the rest of the arguments into stack. */
+ /* Push the rest of the arguments into stack. */
for (; argno < nargs; ++argno)
{
len = TYPE_LENGTH (type);
- /* float types should be passed in fpr's, as well as in the stack. */
+ /* Float types should be passed in fpr's, as well as in the
+ stack. */
if (TYPE_CODE (type) == TYPE_CODE_FLT && f_argno < 13)
{
printf_unfiltered (
"Fatal Error: a floating point parameter #%d with a size > 8 is found!\n", argno);
- memcpy (®isters[REGISTER_BYTE (FP0_REGNUM + 1 + f_argno)],
+ memcpy (&deprecated_registers[DEPRECATED_REGISTER_BYTE (FP0_REGNUM + 1 + f_argno)],
VALUE_CONTENTS (arg),
len);
++f_argno;
ii += ((len + 3) & -4) / 4;
}
}
- else
- /* Secure stack areas first, before doing anything else. */
- write_register (SP_REGNUM, sp);
/* set back chain properly */
- store_address (tmp_buffer, 4, saved_sp);
+ store_unsigned_integer (tmp_buffer, 4, saved_sp);
write_memory (sp, tmp_buffer, 4);
+ /* Set the stack pointer. According to the ABI, the SP is meant to
+ be set _before_ the corresponding stack space is used. No need
+ for that here though - the target has been completely stopped -
+ it isn't possible for an exception handler to stomp on the stack. */
+ regcache_raw_write_signed (regcache, SP_REGNUM, sp);
+
+ /* Point the inferior function call's return address at the dummy's
+ breakpoint. */
+ regcache_raw_write_signed (regcache, tdep->ppc_lr_regnum, bp_addr);
+
+ /* Set the TOC register, get the value from the objfile reader
+ which, in turn, gets it from the VMAP table. */
+ 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;
}
-/* Function: ppc_push_return_address (pc, sp)
- Set up the return address for the inferior function call. */
+/* PowerOpen always puts structures in memory. Vectors, which were
+ added later, do get returned in a register though. */
-static CORE_ADDR
-ppc_push_return_address (CORE_ADDR pc, CORE_ADDR sp)
-{
- write_register (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum,
- CALL_DUMMY_ADDRESS ());
- 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;
}
-/* Extract a function return value of type TYPE from raw register array
- REGBUF, and copy that return value into VALBUF in virtual format. */
-
static void
rs6000_extract_return_value (struct type *valtype, char *regbuf, char *valbuf)
{
float ff;
/* floats and doubles are returned in fpr1. fpr's have a size of 8 bytes.
We need to truncate the return value into float size (4 byte) if
- necessary. */
+ necessary. */
if (TYPE_LENGTH (valtype) > 4) /* this is a double */
memcpy (valbuf,
- ®buf[REGISTER_BYTE (FP0_REGNUM + 1)],
+ ®buf[DEPRECATED_REGISTER_BYTE (FP0_REGNUM + 1)],
TYPE_LENGTH (valtype));
else
{ /* float */
- memcpy (&dd, ®buf[REGISTER_BYTE (FP0_REGNUM + 1)], 8);
+ memcpy (&dd, ®buf[DEPRECATED_REGISTER_BYTE (FP0_REGNUM + 1)], 8);
ff = (float) dd;
memcpy (valbuf, &ff, sizeof (float));
}
&& TYPE_LENGTH (valtype) == 16
&& TYPE_VECTOR (valtype))
{
- memcpy (valbuf, regbuf + REGISTER_BYTE (tdep->ppc_vr0_regnum + 2),
+ memcpy (valbuf, regbuf + DEPRECATED_REGISTER_BYTE (tdep->ppc_vr0_regnum + 2),
TYPE_LENGTH (valtype));
}
else
{
/* return value is copied starting from r3. */
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG
- && TYPE_LENGTH (valtype) < REGISTER_RAW_SIZE (3))
- offset = REGISTER_RAW_SIZE (3) - TYPE_LENGTH (valtype);
+ && TYPE_LENGTH (valtype) < DEPRECATED_REGISTER_RAW_SIZE (3))
+ offset = DEPRECATED_REGISTER_RAW_SIZE (3) - TYPE_LENGTH (valtype);
memcpy (valbuf,
- regbuf + REGISTER_BYTE (3) + offset,
+ regbuf + DEPRECATED_REGISTER_BYTE (3) + offset,
TYPE_LENGTH (valtype));
}
}
-/* Keep structure return address in this variable.
- FIXME: This is a horrid kludge which should not be allowed to continue
- living. This only allows a single nested call to a structure-returning
- function. Come on, guys! -- gnu@cygnus.com, Aug 92 */
-
-static CORE_ADDR rs6000_struct_return_address;
-
/* Return whether handle_inferior_event() should proceed through code
starting at PC in function NAME when stepping.
CORE_ADDR
rs6000_skip_trampoline_code (CORE_ADDR pc)
{
- register unsigned int ii, op;
+ unsigned int ii, op;
int rel;
CORE_ADDR solib_target_pc;
struct minimal_symbol *msymbol;
/* Check for bigtoc fixup code. */
msymbol = lookup_minimal_symbol_by_pc (pc);
- if (msymbol && rs6000_in_solib_return_trampoline (pc, SYMBOL_NAME (msymbol)))
+ if (msymbol && rs6000_in_solib_return_trampoline (pc, DEPRECATED_SYMBOL_NAME (msymbol)))
{
/* Double-check that the third instruction from PC is relative "b". */
op = read_memory_integer (pc + 8, 4);
/* Don't even think about framelessness except on the innermost frame
or if the function was interrupted by a signal. */
- if (fi->next != NULL && !fi->next->signal_handler_caller)
+ if (get_next_frame (fi) != NULL
+ && !(get_frame_type (get_next_frame (fi)) == SIGTRAMP_FRAME))
return 0;
- func_start = get_pc_function_start (fi->pc);
+ func_start = get_frame_func (fi);
/* If we failed to find the start of the function, it is a mistake
- to inspect the instructions. */
+ to inspect the instructions. */
if (!func_start)
{
/* A frame with a zero PC is usually created by dereferencing a NULL
function pointer, normally causing an immediate core dump of the
- inferior. Mark function as frameless, as the inferior has no chance
+ inferior. Mark function as frameless, as the inferior has no chance
of setting up a stack frame. */
- if (fi->pc == 0)
+ if (get_frame_pc (fi) == 0)
return 1;
else
return 0;
}
- (void) skip_prologue (func_start, fi->pc, &fdata);
+ (void) skip_prologue (func_start, get_frame_pc (fi), &fdata);
return fdata.frameless;
}
-/* Return the PC saved in a frame */
+/* Return the PC saved in a frame. */
CORE_ADDR
rs6000_frame_saved_pc (struct frame_info *fi)
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
int wordsize = tdep->wordsize;
- if (fi->signal_handler_caller)
- return read_memory_addr (fi->frame + SIG_FRAME_PC_OFFSET, wordsize);
+ if ((get_frame_type (fi) == SIGTRAMP_FRAME))
+ return read_memory_addr (get_frame_base (fi) + SIG_FRAME_PC_OFFSET,
+ wordsize);
- if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
- return generic_read_register_dummy (fi->pc, fi->frame, PC_REGNUM);
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi),
+ get_frame_base (fi),
+ get_frame_base (fi)))
+ return deprecated_read_register_dummy (get_frame_pc (fi),
+ get_frame_base (fi), PC_REGNUM);
- func_start = get_pc_function_start (fi->pc);
+ func_start = get_frame_func (fi);
/* If we failed to find the start of the function, it is a mistake
- to inspect the instructions. */
+ to inspect the instructions. */
if (!func_start)
return 0;
- (void) skip_prologue (func_start, fi->pc, &fdata);
+ (void) skip_prologue (func_start, get_frame_pc (fi), &fdata);
- if (fdata.lr_offset == 0 && fi->next != NULL)
+ if (fdata.lr_offset == 0 && get_next_frame (fi) != NULL)
{
- if (fi->next->signal_handler_caller)
- return read_memory_addr (fi->next->frame + SIG_FRAME_LR_OFFSET,
+ if ((get_frame_type (get_next_frame (fi)) == SIGTRAMP_FRAME))
+ return read_memory_addr ((get_frame_base (get_next_frame (fi))
+ + SIG_FRAME_LR_OFFSET),
wordsize);
+ else if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (get_next_frame (fi)), 0, 0))
+ /* The link register wasn't saved by this frame and the next
+ (inner, newer) frame is a dummy. Get the link register
+ value by unwinding it from that [dummy] frame. */
+ {
+ ULONGEST lr;
+ frame_unwind_unsigned_register (get_next_frame (fi),
+ tdep->ppc_lr_regnum, &lr);
+ return lr;
+ }
else
- return read_memory_addr (FRAME_CHAIN (fi) + tdep->lr_frame_offset,
+ return read_memory_addr (DEPRECATED_FRAME_CHAIN (fi)
+ + tdep->lr_frame_offset,
wordsize);
}
if (fdata.lr_offset == 0)
return read_register (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum);
- return read_memory_addr (FRAME_CHAIN (fi) + fdata.lr_offset, wordsize);
+ return read_memory_addr (DEPRECATED_FRAME_CHAIN (fi) + fdata.lr_offset,
+ wordsize);
}
/* If saved registers of frame FI are not known yet, read and cache them.
struct gdbarch_tdep * tdep = gdbarch_tdep (current_gdbarch);
int wordsize = tdep->wordsize;
- if (fi->saved_regs)
+ if (deprecated_get_frame_saved_regs (fi))
return;
if (fdatap == NULL)
{
fdatap = &work_fdata;
- (void) skip_prologue (get_pc_function_start (fi->pc), fi->pc, fdatap);
+ (void) skip_prologue (get_frame_func (fi), get_frame_pc (fi), fdatap);
}
frame_saved_regs_zalloc (fi);
/* If there were any saved registers, figure out parent's stack
- pointer. */
+ pointer. */
/* The following is true only if the frame doesn't have a call to
- alloca(), FIXME. */
+ alloca(), FIXME. */
if (fdatap->saved_fpr == 0
&& fdatap->saved_gpr == 0
&& fdatap->saved_vr == 0
+ && fdatap->saved_ev == 0
&& fdatap->lr_offset == 0
&& fdatap->cr_offset == 0
- && fdatap->vr_offset == 0)
+ && fdatap->vr_offset == 0
+ && fdatap->ev_offset == 0)
frame_addr = 0;
else
/* NOTE: cagney/2002-04-14: The ->frame points to the inner-most
->frame pointed to the outer-most address of the frame. In the
mean time, the address of the prev frame is used as the base
address of this frame. */
- frame_addr = FRAME_CHAIN (fi);
+ frame_addr = DEPRECATED_FRAME_CHAIN (fi);
/* if != -1, fdatap->saved_fpr is the smallest number of saved_fpr.
All fpr's from saved_fpr to fp31 are saved. */
CORE_ADDR fpr_addr = frame_addr + fdatap->fpr_offset;
for (i = fdatap->saved_fpr; i < 32; i++)
{
- fi->saved_regs[FP0_REGNUM + i] = fpr_addr;
+ deprecated_get_frame_saved_regs (fi)[FP0_REGNUM + i] = fpr_addr;
fpr_addr += 8;
}
}
CORE_ADDR gpr_addr = frame_addr + fdatap->gpr_offset;
for (i = fdatap->saved_gpr; i < 32; i++)
{
- fi->saved_regs[i] = gpr_addr;
+ deprecated_get_frame_saved_regs (fi)[tdep->ppc_gp0_regnum + i] = gpr_addr;
gpr_addr += wordsize;
}
}
CORE_ADDR vr_addr = frame_addr + fdatap->vr_offset;
for (i = fdatap->saved_vr; i < 32; i++)
{
- fi->saved_regs[tdep->ppc_vr0_regnum + i] = vr_addr;
- vr_addr += REGISTER_RAW_SIZE (tdep->ppc_vr0_regnum);
+ deprecated_get_frame_saved_regs (fi)[tdep->ppc_vr0_regnum + i] = vr_addr;
+ vr_addr += DEPRECATED_REGISTER_RAW_SIZE (tdep->ppc_vr0_regnum);
}
}
}
+ /* if != -1, fdatap->saved_ev is the smallest number of saved_ev.
+ All vr's from saved_ev to ev31 are saved. ????? */
+ if (tdep->ppc_ev0_regnum != -1 && tdep->ppc_ev31_regnum != -1)
+ {
+ if (fdatap->saved_ev >= 0)
+ {
+ int i;
+ CORE_ADDR ev_addr = frame_addr + fdatap->ev_offset;
+ for (i = fdatap->saved_ev; i < 32; i++)
+ {
+ deprecated_get_frame_saved_regs (fi)[tdep->ppc_ev0_regnum + i] = ev_addr;
+ deprecated_get_frame_saved_regs (fi)[tdep->ppc_gp0_regnum + i] = ev_addr + 4;
+ ev_addr += DEPRECATED_REGISTER_RAW_SIZE (tdep->ppc_ev0_regnum);
+ }
+ }
+ }
+
/* If != 0, fdatap->cr_offset is the offset from the frame that holds
the CR. */
if (fdatap->cr_offset != 0)
- fi->saved_regs[tdep->ppc_cr_regnum] = frame_addr + fdatap->cr_offset;
+ deprecated_get_frame_saved_regs (fi)[tdep->ppc_cr_regnum] = frame_addr + fdatap->cr_offset;
/* If != 0, fdatap->lr_offset is the offset from the frame that holds
the LR. */
if (fdatap->lr_offset != 0)
- fi->saved_regs[tdep->ppc_lr_regnum] = frame_addr + fdatap->lr_offset;
+ deprecated_get_frame_saved_regs (fi)[tdep->ppc_lr_regnum] = frame_addr + fdatap->lr_offset;
/* If != 0, fdatap->vrsave_offset is the offset from the frame that holds
the VRSAVE. */
if (fdatap->vrsave_offset != 0)
- fi->saved_regs[tdep->ppc_vrsave_regnum] = frame_addr + fdatap->vrsave_offset;
+ deprecated_get_frame_saved_regs (fi)[tdep->ppc_vrsave_regnum] = frame_addr + fdatap->vrsave_offset;
}
/* Return the address of a frame. This is the inital %sp value when the frame
- was first allocated. For functions calling alloca(), it might be saved in
- an alloca register. */
+ was first allocated. For functions calling alloca(), it might be saved in
+ an alloca register. */
static CORE_ADDR
frame_initial_stack_address (struct frame_info *fi)
struct rs6000_framedata fdata;
struct frame_info *callee_fi;
- /* if the initial stack pointer (frame address) of this frame is known,
- just return it. */
+ /* If the initial stack pointer (frame address) of this frame is known,
+ just return it. */
- if (fi->extra_info->initial_sp)
- return fi->extra_info->initial_sp;
+ if (get_frame_extra_info (fi)->initial_sp)
+ return get_frame_extra_info (fi)->initial_sp;
- /* find out if this function is using an alloca register.. */
+ /* Find out if this function is using an alloca register. */
- (void) skip_prologue (get_pc_function_start (fi->pc), fi->pc, &fdata);
+ (void) skip_prologue (get_frame_func (fi), get_frame_pc (fi), &fdata);
- /* if saved registers of this frame are not known yet, read and cache them. */
+ /* If saved registers of this frame are not known yet, read and
+ cache them. */
- if (!fi->saved_regs)
+ if (!deprecated_get_frame_saved_regs (fi))
frame_get_saved_regs (fi, &fdata);
/* If no alloca register used, then fi->frame is the value of the %sp for
- this frame, and it is good enough. */
+ this frame, and it is good enough. */
if (fdata.alloca_reg < 0)
{
- fi->extra_info->initial_sp = fi->frame;
- return fi->extra_info->initial_sp;
+ get_frame_extra_info (fi)->initial_sp = get_frame_base (fi);
+ return get_frame_extra_info (fi)->initial_sp;
}
/* There is an alloca register, use its value, in the current frame,
as the initial stack pointer. */
{
- char *tmpbuf = alloca (MAX_REGISTER_RAW_SIZE);
+ char tmpbuf[MAX_REGISTER_SIZE];
if (frame_register_read (fi, fdata.alloca_reg, tmpbuf))
{
- fi->extra_info->initial_sp
+ get_frame_extra_info (fi)->initial_sp
= extract_unsigned_integer (tmpbuf,
- REGISTER_RAW_SIZE (fdata.alloca_reg));
+ DEPRECATED_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;
+ get_frame_extra_info (fi)->initial_sp = get_frame_base (fi);
}
- return fi->extra_info->initial_sp;
+ return get_frame_extra_info (fi)->initial_sp;
}
/* Describe the pointer in each stack frame to the previous stack frame
(its caller). */
-/* FRAME_CHAIN takes a frame's nominal address
- and produces the frame's chain-pointer. */
+/* DEPRECATED_FRAME_CHAIN takes a frame's nominal address and produces
+ the frame's chain-pointer. */
/* In the case of the RS/6000, the frame's nominal address
is the address of a 4-byte word containing the calling frame's address. */
CORE_ADDR fp, fpp, lr;
int wordsize = gdbarch_tdep (current_gdbarch)->wordsize;
- if (PC_IN_CALL_DUMMY (thisframe->pc, thisframe->frame, thisframe->frame))
- return thisframe->frame; /* dummy frame same as caller's frame */
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (thisframe),
+ get_frame_base (thisframe),
+ get_frame_base (thisframe)))
+ /* A dummy frame always correctly chains back to the previous
+ frame. */
+ return read_memory_addr (get_frame_base (thisframe), wordsize);
- if (inside_entry_file (thisframe->pc) ||
- thisframe->pc == entry_point_address ())
+ if (deprecated_inside_entry_file (get_frame_pc (thisframe))
+ || get_frame_pc (thisframe) == entry_point_address ())
return 0;
- if (thisframe->signal_handler_caller)
- fp = read_memory_addr (thisframe->frame + SIG_FRAME_FP_OFFSET,
- wordsize);
- else if (thisframe->next != NULL
- && thisframe->next->signal_handler_caller
+ if ((get_frame_type (thisframe) == SIGTRAMP_FRAME))
+ fp = read_memory_addr (get_frame_base (thisframe) + SIG_FRAME_FP_OFFSET,
+ wordsize);
+ else if (get_next_frame (thisframe) != NULL
+ && (get_frame_type (get_next_frame (thisframe)) == SIGTRAMP_FRAME)
&& FRAMELESS_FUNCTION_INVOCATION (thisframe))
/* A frameless function interrupted by a signal did not change the
frame pointer. */
- fp = FRAME_FP (thisframe);
+ fp = get_frame_base (thisframe);
else
- fp = read_memory_addr ((thisframe)->frame, wordsize);
-
- lr = read_register (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum);
- if (lr == entry_point_address ())
- if (fp != 0 && (fpp = read_memory_addr (fp, wordsize)) != 0)
- if (PC_IN_CALL_DUMMY (lr, fpp, fpp))
- return fpp;
-
+ fp = read_memory_addr (get_frame_base (thisframe), wordsize);
return fp;
}
/* Return the size of register REG when words are WORDSIZE bytes long. If REG
- isn't available with that word size, return 0. */
+ isn't available with that word size, return 0. */
static int
regsize (const struct reg *reg, int wordsize)
}
/* Return the name of register number N, or null if no such register exists
- in the current architecture. */
+ in the current architecture. */
static const char *
rs6000_register_name (int n)
}
/* Return the number of bytes of storage in the actual machine representation
- for register N if that register is available, else return 0. */
+ for register N if that register is available, else return 0. */
static int
rs6000_register_raw_size (int n)
int size = regsize (reg, tdep->wordsize);
switch (size)
{
+ case 0:
+ return builtin_type_int0;
+ case 4:
+ return builtin_type_int32;
case 8:
- return builtin_type_int64;
+ if (tdep->ppc_ev0_regnum <= n && n <= tdep->ppc_ev31_regnum)
+ return builtin_type_vec64;
+ else
+ return builtin_type_int64;
break;
case 16:
return builtin_type_vec128;
break;
default:
- return builtin_type_int32;
- break;
+ internal_error (__FILE__, __LINE__, "Register %d size %d unknown",
+ n, size);
}
}
}
-/* For the PowerPC, it appears that the debug info marks float parameters as
- floats regardless of whether the function is prototyped, but the actual
- values are always passed in as doubles. Tell gdb to always assume that
- floats are passed as doubles and then converted in the callee. */
-
-static int
-rs6000_coerce_float_to_double (struct type *formal, struct type *actual)
-{
- return 1;
-}
-
/* Return whether register N requires conversion when moving from raw format
to virtual format.
The register format for RS/6000 floating point registers is always
- double, we need a conversion if the memory format is float. */
+ double, we need a conversion if the memory format is float. */
static int
rs6000_register_convertible (int n)
}
/* Convert data from raw format for register N in buffer FROM
- to virtual format with type TYPE in buffer TO. */
+ to virtual format with type TYPE in buffer TO. */
static void
rs6000_register_convert_to_virtual (int n, struct type *type,
char *from, char *to)
{
- if (TYPE_LENGTH (type) != REGISTER_RAW_SIZE (n))
+ if (TYPE_LENGTH (type) != DEPRECATED_REGISTER_RAW_SIZE (n))
{
- double val = extract_floating (from, REGISTER_RAW_SIZE (n));
- store_floating (to, TYPE_LENGTH (type), val);
+ double val = deprecated_extract_floating (from, DEPRECATED_REGISTER_RAW_SIZE (n));
+ deprecated_store_floating (to, TYPE_LENGTH (type), val);
}
else
- memcpy (to, from, REGISTER_RAW_SIZE (n));
+ memcpy (to, from, DEPRECATED_REGISTER_RAW_SIZE (n));
}
/* Convert data from virtual format with type TYPE in buffer FROM
- to raw format for register N in buffer TO. */
+ to raw format for register N in buffer TO. */
static void
rs6000_register_convert_to_raw (struct type *type, int n,
- char *from, char *to)
+ const char *from, char *to)
{
- if (TYPE_LENGTH (type) != REGISTER_RAW_SIZE (n))
+ if (TYPE_LENGTH (type) != DEPRECATED_REGISTER_RAW_SIZE (n))
{
- double val = extract_floating (from, TYPE_LENGTH (type));
- store_floating (to, REGISTER_RAW_SIZE (n), val);
+ double val = deprecated_extract_floating (from, TYPE_LENGTH (type));
+ deprecated_store_floating (to, DEPRECATED_REGISTER_RAW_SIZE (n), val);
}
else
- memcpy (to, from, REGISTER_RAW_SIZE (n));
-}
-
-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);
+ memcpy (to, from, DEPRECATED_REGISTER_RAW_SIZE (n));
}
static void
-rs6000_do_altivec_registers (int regnum)
+e500_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
+ int reg_nr, void *buffer)
{
- int i;
- char *raw_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE);
- char *virtual_buffer = (char*) alloca (MAX_REGISTER_VIRTUAL_SIZE);
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ int base_regnum;
+ int offset = 0;
+ char temp_buffer[MAX_REGISTER_SIZE];
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- for (i = tdep->ppc_vr0_regnum; i <= tdep->ppc_vrsave_regnum; i++)
+ if (reg_nr >= tdep->ppc_gp0_regnum
+ && reg_nr <= tdep->ppc_gplast_regnum)
{
- /* If we want just one reg, check that this is the one we want. */
- if (regnum != -1 && i != regnum)
- continue;
-
- /* If the register name is empty, it is undefined for this
- processor, so don't display anything. */
- if (REGISTER_NAME (i) == NULL || *(REGISTER_NAME (i)) == '\0')
- continue;
-
- fputs_filtered (REGISTER_NAME (i), gdb_stdout);
- print_spaces_filtered (15 - strlen (REGISTER_NAME (i)), gdb_stdout);
-
- /* Get the data in raw format. */
- if (!frame_register_read (selected_frame, i, raw_buffer))
- {
- printf_filtered ("*value not available*\n");
- continue;
- }
-
- /* Convert raw data to virtual format if necessary. */
- if (REGISTER_CONVERTIBLE (i))
- REGISTER_CONVERT_TO_VIRTUAL (i, REGISTER_VIRTUAL_TYPE (i),
- raw_buffer, virtual_buffer);
- else
- memcpy (virtual_buffer, raw_buffer, REGISTER_VIRTUAL_SIZE (i));
-
- /* Print as integer in hex only. */
- val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
- gdb_stdout, 'x', 1, 0, Val_pretty_default);
- printf_filtered ("\n");
+ base_regnum = reg_nr - tdep->ppc_gp0_regnum + tdep->ppc_ev0_regnum;
+
+ /* Build the value in the provided buffer. */
+ /* Read the raw register of which this one is the lower portion. */
+ regcache_raw_read (regcache, base_regnum, temp_buffer);
+ if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
+ offset = 4;
+ memcpy ((char *) buffer, temp_buffer + offset, 4);
}
}
static void
-rs6000_altivec_registers_info (char *addr_exp, int from_tty)
+e500_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
+ int reg_nr, const void *buffer)
{
- int regnum, numregs;
- register char *end;
-
- if (!target_has_registers)
- error ("The program has no registers now.");
- if (selected_frame == NULL)
- error ("No selected frame.");
-
- if (!addr_exp)
- {
- rs6000_do_altivec_registers (-1);
- return;
- }
+ int base_regnum;
+ int offset = 0;
+ char temp_buffer[MAX_REGISTER_SIZE];
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- numregs = NUM_REGS + NUM_PSEUDO_REGS;
- do
+ if (reg_nr >= tdep->ppc_gp0_regnum
+ && reg_nr <= tdep->ppc_gplast_regnum)
{
- if (addr_exp[0] == '$')
- addr_exp++;
- end = addr_exp;
- while (*end != '\0' && *end != ' ' && *end != '\t')
- ++end;
-
- regnum = target_map_name_to_register (addr_exp, end - addr_exp);
- if (regnum < 0)
- {
- regnum = numregs;
- if (*addr_exp >= '0' && *addr_exp <= '9')
- regnum = atoi (addr_exp); /* Take a number */
- if (regnum >= numregs) /* Bad name, or bad number */
- error ("%.*s: invalid register", end - addr_exp, addr_exp);
- }
-
- rs6000_do_altivec_registers (regnum);
-
- addr_exp = end;
- while (*addr_exp == ' ' || *addr_exp == '\t')
- ++addr_exp;
+ base_regnum = reg_nr - tdep->ppc_gp0_regnum + tdep->ppc_ev0_regnum;
+ /* reg_nr is 32 bit here, and base_regnum is 64 bits. */
+ if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
+ offset = 4;
+
+ /* Let's read the value of the base register into a temporary
+ buffer, so that overwriting the last four bytes with the new
+ value of the pseudo will leave the upper 4 bytes unchanged. */
+ regcache_raw_read (regcache, base_regnum, temp_buffer);
+
+ /* Write as an 8 byte quantity. */
+ memcpy (temp_buffer + offset, (char *) buffer, 4);
+ regcache_raw_write (regcache, base_regnum, temp_buffer);
}
- while (*addr_exp != '\0');
}
-static void
-rs6000_do_registers_info (int regnum, int fpregs)
+/* Convert a dwarf2 register number to a gdb REGNUM. */
+static int
+e500_dwarf2_reg_to_regnum (int num)
{
- register int i;
- int numregs = NUM_REGS + NUM_PSEUDO_REGS;
- char *raw_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE);
- char *virtual_buffer = (char*) alloca (MAX_REGISTER_VIRTUAL_SIZE);
-
- for (i = 0; i < numregs; i++)
- {
- /* Decide between printing all regs, nonfloat regs, or specific reg. */
- if (regnum == -1)
- {
- if ((TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT && !fpregs)
- || (altivec_register_p (i) && !fpregs))
- continue;
- }
- else
- {
- if (i != regnum)
- continue;
- }
-
- /* If the register name is empty, it is undefined for this
- processor, so don't display anything. */
- if (REGISTER_NAME (i) == NULL || *(REGISTER_NAME (i)) == '\0')
- continue;
-
- fputs_filtered (REGISTER_NAME (i), gdb_stdout);
- print_spaces_filtered (15 - strlen (REGISTER_NAME (i)), gdb_stdout);
-
- /* Get the data in raw format. */
- if (!frame_register_read (selected_frame, i, raw_buffer))
- {
- printf_filtered ("*value not available*\n");
- continue;
- }
-
- /* Convert raw data to virtual format if necessary. */
- if (REGISTER_CONVERTIBLE (i))
- REGISTER_CONVERT_TO_VIRTUAL (i, REGISTER_VIRTUAL_TYPE (i),
- raw_buffer, virtual_buffer);
- else
- memcpy (virtual_buffer, raw_buffer, REGISTER_VIRTUAL_SIZE (i));
-
- /* If virtual format is floating, print it that way, and in raw hex. */
- if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT)
- {
- register int j;
-
- val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
- gdb_stdout, 0, 1, 0, Val_pretty_default);
-
- printf_filtered ("\t(raw 0x");
- for (j = 0; j < REGISTER_RAW_SIZE (i); j++)
- {
- register int idx = TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? j
- : REGISTER_RAW_SIZE (i) - 1 - j;
- printf_filtered ("%02x", (unsigned char) raw_buffer[idx]);
- }
- printf_filtered (")");
- }
- else
- {
- /* Print the register in hex. */
- val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
- gdb_stdout, 'x', 1, 0, Val_pretty_default);
- /* If not a vector register, print it also in decimal. */
- if (!altivec_register_p (i))
- {
- printf_filtered ("\t");
- val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
- gdb_stdout, 0, 1, 0, Val_pretty_default);
- }
- }
- printf_filtered ("\n");
- }
+ int regnum;
+ if (0 <= num && num <= 31)
+ return num + gdbarch_tdep (current_gdbarch)->ppc_gp0_regnum;
+ else
+ return num;
}
/* Convert a dbx stab register number (from `r' declaration) to a gdb
- REGNUM. */
+ REGNUM. */
static int
rs6000_stab_reg_to_regnum (int num)
{
return regnum;
}
-/* Store the address of the place in which to copy the structure the
- subroutine will return. This is called from call_function.
-
- In RS/6000, struct return addresses are passed as an extra parameter in r3.
- In function return, callee is not responsible of returning this address
- back. Since gdb needs to find it, we will store in a designated variable
- `rs6000_struct_return_address'. */
-
-static void
-rs6000_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
-{
- write_register (3, addr);
- rs6000_struct_return_address = addr;
-}
-
-/* Write into appropriate registers a function return value
- of type TYPE, given in virtual format. */
-
static void
rs6000_store_return_value (struct type *type, char *valbuf)
{
/* Floating point values are returned starting from FPR1 and up.
Say a double_double_double type could be returned in
- FPR1/FPR2/FPR3 triple. */
+ FPR1/FPR2/FPR3 triple. */
- write_register_bytes (REGISTER_BYTE (FP0_REGNUM + 1), valbuf,
- TYPE_LENGTH (type));
+ deprecated_write_register_bytes (DEPRECATED_REGISTER_BYTE (FP0_REGNUM + 1), valbuf,
+ TYPE_LENGTH (type));
else if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
{
if (TYPE_LENGTH (type) == 16
&& TYPE_VECTOR (type))
- write_register_bytes (REGISTER_BYTE (tdep->ppc_vr0_regnum + 2),
- valbuf, TYPE_LENGTH (type));
+ deprecated_write_register_bytes (DEPRECATED_REGISTER_BYTE (tdep->ppc_vr0_regnum + 2),
+ valbuf, TYPE_LENGTH (type));
}
else
- /* Everything else is returned in GPR3 and up. */
- write_register_bytes (REGISTER_BYTE (gdbarch_tdep (current_gdbarch)->ppc_gp0_regnum + 3),
- valbuf, TYPE_LENGTH (type));
+ /* Everything else is returned in GPR3 and up. */
+ deprecated_write_register_bytes (DEPRECATED_REGISTER_BYTE (gdbarch_tdep (current_gdbarch)->ppc_gp0_regnum + 3),
+ valbuf, TYPE_LENGTH (type));
}
/* Extract from an array REGBUF containing the (raw) register state
as a CORE_ADDR (or an expression that can be used as one). */
static CORE_ADDR
-rs6000_extract_struct_value_address (char *regbuf)
-{
- return rs6000_struct_return_address;
+rs6000_extract_struct_value_address (struct regcache *regcache)
+{
+ /* FIXME: cagney/2002-09-26: PR gdb/724: When making an inferior
+ function call GDB knows the address of the struct return value
+ and hence, should not need to call this function. Unfortunately,
+ the current call_function_by_hand() code only saves the most
+ recent struct address leading to occasional calls. The code
+ should instead maintain a stack of such addresses (in the dummy
+ frame object). */
+ /* NOTE: cagney/2002-09-26: Return 0 which indicates that we've
+ really got no idea where the return value is being stored. While
+ r3, on function entry, contained the address it will have since
+ been reused (scratch) and hence wouldn't be valid */
+ return 0;
}
/* Return whether PC is in a dummy function call.
FIXME: This just checks for the end of the stack, which is broken
- for things like stepping through gcc nested function stubs. */
+ for things like stepping through gcc nested function stubs. */
static int
rs6000_pc_in_call_dummy (CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR fp)
return sp < pc && pc < fp;
}
-/* Hook called when a new child process is started. */
+/* Hook called when a new child process is started. */
void
rs6000_create_inferior (int pid)
rs6000_set_host_arch_hook (pid);
}
\f
-/* Support for CONVERT_FROM_FUNC_PTR_ADDR(ADDR).
+/* Support for CONVERT_FROM_FUNC_PTR_ADDR (ARCH, ADDR, TARG).
Usually a function pointer's representation is simply the address
of the function. On the RS/6000 however, a function pointer is
/* Return real function address if ADDR (a function pointer) is in the data
space and is therefore a special function pointer. */
-CORE_ADDR
-rs6000_convert_from_func_ptr_addr (CORE_ADDR addr)
+static CORE_ADDR
+rs6000_convert_from_func_ptr_addr (struct gdbarch *gdbarch,
+ CORE_ADDR addr,
+ struct target_ops *targ)
{
struct obj_section *s;
would introduce a really large gap between fpscr and the rest of
the registers for most processors. */
-/* Convenience macros for populating register arrays. */
+/* Convenience macros for populating register arrays. */
-/* Within another macro, convert S to a string. */
+/* Within another macro, convert S to a string. */
#define STR(s) #s
/* Return a struct reg defining register NAME that's 32 bits on 32-bit systems
- and 64 bits on 64-bit systems. */
+ and 64 bits on 64-bit systems. */
#define R(name) { STR(name), 4, 8, 0, 0 }
/* Return a struct reg defining register NAME that's 32 bits on all
- systems. */
+ systems. */
#define R4(name) { STR(name), 4, 4, 0, 0 }
/* Return a struct reg defining register NAME that's 64 bits on all
- systems. */
+ systems. */
#define R8(name) { STR(name), 8, 8, 0, 0 }
/* Return a struct reg defining register NAME that's 128 bits on all
- systems. */
+ systems. */
#define R16(name) { STR(name), 16, 16, 0, 0 }
-/* Return a struct reg defining floating-point register NAME. */
+/* Return a struct reg defining floating-point register NAME. */
#define F(name) { STR(name), 8, 8, 1, 0 }
-/* Return a struct reg defining a pseudo register NAME. */
+/* Return a struct reg defining a pseudo register NAME. */
#define P(name) { STR(name), 4, 8, 0, 1}
/* Return a struct reg defining register NAME that's 32 bits on 32-bit
- systems and that doesn't exist on 64-bit systems. */
+ systems and that doesn't exist on 64-bit systems. */
#define R32(name) { STR(name), 4, 0, 0, 0 }
/* Return a struct reg defining register NAME that's 64 bits on 64-bit
- systems and that doesn't exist on 32-bit systems. */
+ systems and that doesn't exist on 32-bit systems. */
#define R64(name) { STR(name), 0, 8, 0, 0 }
-/* Return a struct reg placeholder for a register that doesn't exist. */
+/* Return a struct reg placeholder for a register that doesn't exist. */
#define R0 { 0, 0, 0, 0, 0 }
/* UISA registers common across all architectures, including POWER. */
#define PPC_UISA_SPRS \
/* 66 */ R4(cr), R(lr), R(ctr), R4(xer), R4(fpscr)
+/* UISA-level SPRs for PowerPC without floating point support. */
+#define PPC_UISA_NOFP_SPRS \
+ /* 66 */ R4(cr), R(lr), R(ctr), R4(xer), R0
+
/* Segment registers, for PowerPC. */
#define PPC_SEGMENT_REGS \
/* 71 */ R32(sr0), R32(sr1), R32(sr2), R32(sr3), \
/* 112 */ R(srr0), R(srr1), R(tbl), R(tbu), \
/* 116 */ R4(dec), R(dabr), R4(ear)
-/* AltiVec registers */
+/* AltiVec registers. */
#define PPC_ALTIVEC_REGS \
/*119*/R16(vr0), R16(vr1), R16(vr2), R16(vr3), R16(vr4), R16(vr5), R16(vr6), R16(vr7), \
/*127*/R16(vr8), R16(vr9), R16(vr10),R16(vr11),R16(vr12),R16(vr13),R16(vr14),R16(vr15), \
/*143*/R16(vr24),R16(vr25),R16(vr26),R16(vr27),R16(vr28),R16(vr29),R16(vr30),R16(vr31), \
/*151*/R4(vscr), R4(vrsave)
+/* Vectors of hi-lo general purpose registers. */
+#define PPC_EV_REGS \
+ /* 0*/R8(ev0), R8(ev1), R8(ev2), R8(ev3), R8(ev4), R8(ev5), R8(ev6), R8(ev7), \
+ /* 8*/R8(ev8), R8(ev9), R8(ev10),R8(ev11),R8(ev12),R8(ev13),R8(ev14),R8(ev15), \
+ /*16*/R8(ev16),R8(ev17),R8(ev18),R8(ev19),R8(ev20),R8(ev21),R8(ev22),R8(ev23), \
+ /*24*/R8(ev24),R8(ev25),R8(ev26),R8(ev27),R8(ev28),R8(ev29),R8(ev30),R8(ev31)
+
+/* Lower half of the EV registers. */
+#define PPC_GPRS_PSEUDO_REGS \
+ /* 0 */ P(r0), P(r1), P(r2), P(r3), P(r4), P(r5), P(r6), P(r7), \
+ /* 8 */ P(r8), P(r9), P(r10),P(r11),P(r12),P(r13),P(r14),P(r15), \
+ /* 16 */ P(r16),P(r17),P(r18),P(r19),P(r20),P(r21),P(r22),P(r23), \
+ /* 24 */ P(r24),P(r25),P(r26),P(r27),P(r28),P(r29),P(r30),P(r31)
+
/* IBM POWER (pre-PowerPC) architecture, user-level view. We only cover
- user-level SPR's. */
+ user-level SPR's. */
static const struct reg registers_power[] =
{
COMMON_UISA_REGS,
};
/* PowerPC UISA - a PPC processor as viewed by user-level code. A UISA-only
- view of the PowerPC. */
+ view of the PowerPC. */
static const struct reg registers_powerpc[] =
{
COMMON_UISA_REGS,
PPC_UISA_SPRS
};
-/* IBM PowerPC 403. */
+/* IBM PowerPC 403. */
static const struct reg registers_403[] =
{
COMMON_UISA_REGS,
/* 139 */ R(pbl1), R(pbu1), R(pbl2), R(pbu2)
};
-/* IBM PowerPC 403GC. */
+/* IBM PowerPC 403GC. */
static const struct reg registers_403GC[] =
{
COMMON_UISA_REGS,
/* 147 */ R(tbhu), R(tblu)
};
-/* Motorola PowerPC 505. */
+/* Motorola PowerPC 505. */
static const struct reg registers_505[] =
{
COMMON_UISA_REGS,
/* 119 */ R(eie), R(eid), R(nri)
};
-/* Motorola PowerPC 860 or 850. */
+/* Motorola PowerPC 860 or 850. */
static const struct reg registers_860[] =
{
COMMON_UISA_REGS,
/* 123 */ R(pir), R(mq), R(rtcu), R(rtcl)
};
-/* Motorola PowerPC 602. */
+/* Motorola PowerPC 602. */
static const struct reg registers_602[] =
{
COMMON_UISA_REGS,
/* 127 */ R(sebr), R(ser), R(sp), R(lt)
};
-/* Motorola/IBM PowerPC 603 or 603e. */
+/* Motorola/IBM PowerPC 603 or 603e. */
static const struct reg registers_603[] =
{
COMMON_UISA_REGS,
/* 127 */ R(hash2), R(imiss), R(icmp), R(rpa)
};
-/* Motorola PowerPC 604 or 604e. */
+/* Motorola PowerPC 604 or 604e. */
static const struct reg registers_604[] =
{
COMMON_UISA_REGS,
/* 127 */ R(sia), R(sda)
};
-/* Motorola/IBM PowerPC 750 or 740. */
+/* Motorola/IBM PowerPC 750 or 740. */
static const struct reg registers_750[] =
{
COMMON_UISA_REGS,
};
-/* Motorola PowerPC 7400. */
+/* Motorola PowerPC 7400. */
static const struct reg registers_7400[] =
{
/* gpr0-gpr31, fpr0-fpr31 */
/* FIXME? Add more registers? */
};
+/* Motorola e500. */
+static const struct reg registers_e500[] =
+{
+ R(pc), R(ps),
+ /* cr, lr, ctr, xer, "" */
+ PPC_UISA_NOFP_SPRS,
+ /* 7...38 */
+ PPC_EV_REGS,
+ R8(acc), R(spefscr),
+ /* NOTE: Add new registers here the end of the raw register
+ list and just before the first pseudo register. */
+ /* 39...70 */
+ PPC_GPRS_PSEUDO_REGS
+};
+
/* Information about a particular processor variant. */
struct variant
/* English description of the variant. */
char *description;
- /* bfd_arch_info.arch corresponding to variant. */
+ /* bfd_arch_info.arch corresponding to variant. */
enum bfd_architecture arch;
- /* bfd_arch_info.mach corresponding to variant. */
+ /* bfd_arch_info.mach corresponding to variant. */
unsigned long mach;
/* Number of real registers. */
return npregs;
}
-
/* Information in this table comes from the following web sites:
IBM: http://www.chips.ibm.com:80/products/embedded/
Motorola: http://www.mot.com/SPS/PowerPC/
{"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},
/* 64-bit */
{"powerpc64", "PowerPC 64-bit user-level", bfd_arch_powerpc,
bfd_mach_ppc_rs64iii, -1, -1, tot_num_registers (registers_powerpc),
registers_powerpc},
- /* FIXME: I haven't checked the register sets of the following. */
+ /* FIXME: I haven't checked the register sets of the following. */
{"rs1", "IBM POWER RS1", bfd_arch_rs6000,
bfd_mach_rs6k_rs1, -1, -1, tot_num_registers (registers_power),
registers_power},
{0, 0, 0, 0, 0, 0, 0, 0}
};
-/* Initialize the number of registers and pseudo registers in each variant. */
+/* Initialize the number of registers and pseudo registers in each variant. */
static void
init_variants (void)
}
/* Return the variant corresponding to architecture ARCH and machine number
- MACH. If no such variant exists, return null. */
+ MACH. If no such variant exists, return null. */
static const struct variant *
find_variant_by_arch (enum bfd_architecture arch, unsigned long mach)
during this debugging session.
Called e.g. at program startup, when reading a core file, and when reading
- a binary file. */
+ a binary file. */
static struct gdbarch *
rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
unsigned long mach;
bfd abfd;
int sysv_abi;
- enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
+ asection *sect;
from_xcoff_exec = info.abfd && info.abfd->format == bfd_object &&
bfd_get_flavour (info.abfd) == bfd_target_xcoff_flavour;
sysv_abi = info.abfd && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour;
- if (info.abfd)
- osabi = gdbarch_lookup_osabi (info.abfd);
-
/* Check word size. If INFO is from a binary file, infer it from
- that, else choose a likely default. */
+ that, else choose a likely default. */
if (from_xcoff_exec)
{
if (bfd_xcoff_is_xcoff64 (info.abfd))
wordsize = 4;
}
- /* Find a candidate among extant architectures. */
+ /* Find a candidate among extant architectures. */
for (arches = gdbarch_list_lookup_by_info (arches, &info);
arches != NULL;
arches = gdbarch_list_lookup_by_info (arches->next, &info))
{
/* Word size in the various PowerPC bfd_arch_info structs isn't
meaningful, because 64-bit CPUs can run in 32-bit mode. So, perform
- separate word size check. */
+ separate word size check. */
tdep = gdbarch_tdep (arches->gdbarch);
- if (tdep && tdep->wordsize == wordsize && tdep->osabi == osabi)
+ if (tdep && tdep->wordsize == wordsize)
return arches->gdbarch;
}
else
{
arch = bfd_arch_powerpc;
- mach = 0;
- bfd_default_set_arch_mach (&abfd, arch, mach);
+ 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;
- tdep->osabi = osabi;
+
+ /* For e500 executables, the apuinfo section is of help here. Such
+ section contains the identifier and revision number of each
+ Application-specific Processing Unit that is present on the
+ chip. The content of the section is determined by the assembler
+ which looks at each instruction and determines which unit (and
+ which version of it) can execute it. In our case we just look for
+ the existance of the section. */
+
+ 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);
power = arch == bfd_arch_rs6000;
/* Initialize the number of real and pseudo registers in each variant. */
init_variants ();
- /* Choose variant. */
+ /* Choose variant. */
v = find_variant_by_arch (arch, mach);
if (!v)
return NULL;
tdep->ppc_mq_regnum = -1;
tdep->ppc_fpscr_regnum = power ? 71 : 70;
+ set_gdbarch_pc_regnum (gdbarch, 64);
+ set_gdbarch_sp_regnum (gdbarch, 1);
+ set_gdbarch_deprecated_fp_regnum (gdbarch, 1);
+ if (sysv_abi && wordsize == 8)
+ {
+ set_gdbarch_extract_return_value (gdbarch, ppc64_sysv_abi_extract_return_value);
+ set_gdbarch_store_return_value (gdbarch, ppc64_sysv_abi_store_return_value);
+ }
+ else if (sysv_abi && wordsize == 4)
+ {
+ set_gdbarch_extract_return_value (gdbarch, ppc_sysv_abi_extract_return_value);
+ set_gdbarch_store_return_value (gdbarch, ppc_sysv_abi_store_return_value);
+ }
+ else
+ {
+ set_gdbarch_deprecated_extract_return_value (gdbarch, rs6000_extract_return_value);
+ set_gdbarch_deprecated_store_return_value (gdbarch, rs6000_store_return_value);
+ }
+
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 = 153;
+ 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;
+ tdep->ppc_gplast_regnum = tdep->ppc_gp0_regnum + 32 - 1;
+ tdep->ppc_toc_regnum = -1;
+ tdep->ppc_ps_regnum = 1;
+ tdep->ppc_cr_regnum = 2;
+ tdep->ppc_lr_regnum = 3;
+ tdep->ppc_ctr_regnum = 4;
+ tdep->ppc_xer_regnum = 5;
+ tdep->ppc_ev0_regnum = 7;
+ tdep->ppc_ev31_regnum = 38;
+ 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);
+ set_gdbarch_dwarf2_reg_to_regnum (gdbarch, e500_dwarf2_reg_to_regnum);
+ 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
set_gdbarch_print_insn (gdbarch, gdb_print_insn_powerpc);
- set_gdbarch_read_pc (gdbarch, generic_target_read_pc);
set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
- set_gdbarch_read_fp (gdbarch, generic_target_read_fp);
- set_gdbarch_read_sp (gdbarch, generic_target_read_sp);
- set_gdbarch_write_sp (gdbarch, generic_target_write_sp);
set_gdbarch_num_regs (gdbarch, v->nregs);
- set_gdbarch_sp_regnum (gdbarch, 1);
- set_gdbarch_fp_regnum (gdbarch, 1);
- set_gdbarch_pc_regnum (gdbarch, 64);
+ set_gdbarch_num_pseudo_regs (gdbarch, v->npregs);
set_gdbarch_register_name (gdbarch, rs6000_register_name);
- set_gdbarch_register_size (gdbarch, wordsize);
- set_gdbarch_register_bytes (gdbarch, off);
- set_gdbarch_register_byte (gdbarch, rs6000_register_byte);
- set_gdbarch_register_raw_size (gdbarch, rs6000_register_raw_size);
- set_gdbarch_max_register_raw_size (gdbarch, 16);
- set_gdbarch_register_virtual_size (gdbarch, generic_register_size);
- set_gdbarch_max_register_virtual_size (gdbarch, 16);
- set_gdbarch_register_virtual_type (gdbarch, rs6000_register_virtual_type);
- set_gdbarch_do_registers_info (gdbarch, rs6000_do_registers_info);
+ set_gdbarch_deprecated_register_size (gdbarch, wordsize);
+ set_gdbarch_deprecated_register_bytes (gdbarch, off);
+ set_gdbarch_deprecated_register_byte (gdbarch, rs6000_register_byte);
+ set_gdbarch_deprecated_register_raw_size (gdbarch, rs6000_register_raw_size);
+ set_gdbarch_deprecated_register_virtual_type (gdbarch, rs6000_register_virtual_type);
set_gdbarch_ptr_bit (gdbarch, wordsize * TARGET_CHAR_BIT);
set_gdbarch_short_bit (gdbarch, 2 * 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);
- set_gdbarch_long_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_use_generic_dummy_frames (gdbarch, 1);
- set_gdbarch_call_dummy_length (gdbarch, 0);
- set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT);
- set_gdbarch_call_dummy_address (gdbarch, entry_point_address);
- set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1);
- set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0);
- set_gdbarch_call_dummy_start_offset (gdbarch, 0);
- set_gdbarch_pc_in_call_dummy (gdbarch, generic_pc_in_call_dummy);
- set_gdbarch_call_dummy_p (gdbarch, 1);
- set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
- set_gdbarch_get_saved_register (gdbarch, generic_unwind_get_saved_register);
- set_gdbarch_fix_call_dummy (gdbarch, rs6000_fix_call_dummy);
- set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame);
- set_gdbarch_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos);
- set_gdbarch_push_return_address (gdbarch, ppc_push_return_address);
+ set_gdbarch_frame_align (gdbarch, rs6000_frame_align);
+ if (sysv_abi && wordsize == 8)
+ /* PPC64 SYSV. */
+ set_gdbarch_frame_red_zone_size (gdbarch, 288);
+ else if (!sysv_abi && wordsize == 4)
+ /* PowerOpen / AIX 32 bit. The saved area or red zone consists of
+ 19 4 byte GPRS + 18 8 byte FPRs giving a total of 220 bytes.
+ Problem is, 220 isn't frame (16 byte) aligned. Round it up to
+ 224. */
+ set_gdbarch_frame_red_zone_size (gdbarch, 224);
+ set_gdbarch_deprecated_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos);
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
- set_gdbarch_coerce_float_to_double (gdbarch, rs6000_coerce_float_to_double);
- set_gdbarch_register_convertible (gdbarch, rs6000_register_convertible);
- set_gdbarch_register_convert_to_virtual (gdbarch, rs6000_register_convert_to_virtual);
- set_gdbarch_register_convert_to_raw (gdbarch, rs6000_register_convert_to_raw);
+ set_gdbarch_deprecated_register_convertible (gdbarch, rs6000_register_convertible);
+ set_gdbarch_deprecated_register_convert_to_virtual (gdbarch, rs6000_register_convert_to_virtual);
+ set_gdbarch_deprecated_register_convert_to_raw (gdbarch, rs6000_register_convert_to_raw);
set_gdbarch_stab_reg_to_regnum (gdbarch, rs6000_stab_reg_to_regnum);
-
- set_gdbarch_deprecated_extract_return_value (gdbarch, rs6000_extract_return_value);
-
/* 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
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);
+ 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_arguments (gdbarch, rs6000_push_arguments);
+ set_gdbarch_push_dummy_call (gdbarch, rs6000_push_dummy_call);
- set_gdbarch_store_struct_return (gdbarch, rs6000_store_struct_return);
- set_gdbarch_store_return_value (gdbarch, rs6000_store_return_value);
- set_gdbarch_deprecated_extract_struct_value_address (gdbarch, rs6000_extract_struct_value_address);
- set_gdbarch_pop_frame (gdbarch, rs6000_pop_frame);
+ set_gdbarch_extract_struct_value_address (gdbarch, rs6000_extract_struct_value_address);
+ set_gdbarch_deprecated_pop_frame (gdbarch, rs6000_pop_frame);
set_gdbarch_skip_prologue (gdbarch, rs6000_skip_prologue);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
/* Not sure on this. FIXMEmgo */
set_gdbarch_frame_args_skip (gdbarch, 8);
- if (sysv_abi)
+ if (sysv_abi && wordsize == 4)
set_gdbarch_use_struct_convention (gdbarch,
ppc_sysv_abi_use_struct_convention);
+ else if (sysv_abi && wordsize == 8)
+ set_gdbarch_use_struct_convention (gdbarch, ppc64_sysv_abi_use_struct_convention);
else
set_gdbarch_use_struct_convention (gdbarch,
- generic_use_struct_convention);
-
- set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
+ rs6000_use_struct_convention);
set_gdbarch_frameless_function_invocation (gdbarch,
rs6000_frameless_function_invocation);
- set_gdbarch_frame_chain (gdbarch, rs6000_frame_chain);
- set_gdbarch_frame_saved_pc (gdbarch, rs6000_frame_saved_pc);
+ set_gdbarch_deprecated_frame_chain (gdbarch, rs6000_frame_chain);
+ set_gdbarch_deprecated_frame_saved_pc (gdbarch, rs6000_frame_saved_pc);
- set_gdbarch_frame_init_saved_regs (gdbarch, rs6000_frame_init_saved_regs);
- set_gdbarch_init_extra_frame_info (gdbarch, rs6000_init_extra_frame_info);
+ set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, rs6000_frame_init_saved_regs);
+ set_gdbarch_deprecated_init_extra_frame_info (gdbarch, rs6000_init_extra_frame_info);
if (!sysv_abi)
{
set_gdbarch_convert_from_func_ptr_addr (gdbarch,
rs6000_convert_from_func_ptr_addr);
}
- set_gdbarch_frame_args_address (gdbarch, rs6000_frame_args_address);
- set_gdbarch_frame_locals_address (gdbarch, rs6000_frame_args_address);
- set_gdbarch_saved_pc_after_call (gdbarch, rs6000_saved_pc_after_call);
+ set_gdbarch_deprecated_frame_args_address (gdbarch, rs6000_frame_args_address);
+ set_gdbarch_deprecated_frame_locals_address (gdbarch, rs6000_frame_args_address);
+ set_gdbarch_deprecated_saved_pc_after_call (gdbarch, rs6000_saved_pc_after_call);
- /* We can't tell how many args there are
- now that the C compiler delays popping them. */
- set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
+ /* Helpers for function argument information. */
+ set_gdbarch_fetch_pointer_argument (gdbarch, rs6000_fetch_pointer_argument);
/* Hook in ABI-specific overrides, if they have been registered. */
- gdbarch_init_osabi (info, gdbarch, osabi);
+ gdbarch_init_osabi (info, gdbarch);
+
+ if (from_xcoff_exec)
+ {
+ /* NOTE: jimix/2003-06-09: This test should really check for
+ GDB_OSABI_AIX when that is defined and becomes
+ available. (Actually, once things are properly split apart,
+ the test goes away.) */
+ /* RS6000/AIX does not support PT_STEP. Has to be simulated. */
+ set_gdbarch_software_single_step (gdbarch, rs6000_software_single_step);
+ }
return gdbarch;
}
if (tdep == NULL)
return;
- fprintf_unfiltered (file, "rs6000_dump_tdep: OS ABI = %s\n",
- gdbarch_osabi_name (tdep->osabi));
+ /* FIXME: Dump gdbarch_tdep. */
}
static struct cmd_list_element *info_powerpc_cmdlist = NULL;
/* Initialization code. */
+extern initialize_file_ftype _initialize_rs6000_tdep; /* -Wmissing-prototypes */
+
void
_initialize_rs6000_tdep (void)
{
add_prefix_cmd ("powerpc", class_info, rs6000_info_powerpc_command,
"Various POWERPC info specific commands.",
&info_powerpc_cmdlist, "info powerpc ", 0, &infolist);
-
- add_cmd ("altivec", class_info, rs6000_altivec_registers_info,
- "Display the contents of the AltiVec registers.",
- &info_powerpc_cmdlist);
}
projects / deliverable / binutils-gdb.git / blobdiff