/* Target-machine dependent code for Motorola 88000 series, for GDB.
- Copyright (C) 1988, 1990, 1991 Free Software Foundation, Inc.
+ Copyright 1988, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 2000,
+ 2001 Free Software Foundation, Inc.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "frame.h"
#include "inferior.h"
#include "value.h"
#include "gdbcore.h"
-
#include "symtab.h"
#include "setjmp.h"
#include "value.h"
+#include "regcache.h"
/* Size of an instruction */
#define BYTES_PER_88K_INSN 4
void frame_find_saved_regs ();
-/* is this target an m88110? Otherwise assume m88100. This has
- relevance for the ways in which we screw with instruction pointers. */
+/* Is this target an m88110? Otherwise assume m88100. This has
+ relevance for the ways in which we screw with instruction pointers. */
+
int target_is_m88110 = 0;
+/* The m88k kernel aligns all instructions on 4-byte boundaries. The
+ kernel also uses the least significant two bits for its own hocus
+ pocus. When gdb receives an address from the kernel, it needs to
+ preserve those right-most two bits, but gdb also needs to be careful
+ to realize that those two bits are not really a part of the address
+ of an instruction. Shrug. */
+
+CORE_ADDR
+m88k_addr_bits_remove (CORE_ADDR addr)
+{
+ return ((addr) & ~3);
+}
+
+
/* Given a GDB frame, determine the address of the calling function's frame.
This will be used to create a new GDB frame struct, and then
INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame.
For us, the frame address is its stack pointer value, so we look up
the function prologue to determine the caller's sp value, and return it. */
-FRAME_ADDR
-frame_chain (thisframe)
- FRAME thisframe;
+CORE_ADDR
+frame_chain (struct frame_info *thisframe)
{
frame_find_saved_regs (thisframe, (struct frame_saved_regs *) 0);
/* NOTE: this depends on frame_find_saved_regs returning the VALUE, not
- the ADDRESS, of SP_REGNUM. It also depends on the cache of
- frame_find_saved_regs results. */
+ the ADDRESS, of SP_REGNUM. It also depends on the cache of
+ frame_find_saved_regs results. */
if (thisframe->fsr->regs[SP_REGNUM])
return thisframe->fsr->regs[SP_REGNUM];
else
}
int
-frameless_function_invocation (frame)
- FRAME frame;
+frameless_function_invocation (struct frame_info *frame)
{
frame_find_saved_regs (frame, (struct frame_saved_regs *) 0);
/* NOTE: this depends on frame_find_saved_regs returning the VALUE, not
- the ADDRESS, of SP_REGNUM. It also depends on the cache of
- frame_find_saved_regs results. */
+ the ADDRESS, of SP_REGNUM. It also depends on the cache of
+ frame_find_saved_regs results. */
if (frame->fsr->regs[SP_REGNUM])
return 0; /* Frameful -- return addr saved somewhere */
else
}
void
-init_extra_frame_info (fromleaf, fi)
- int fromleaf;
- struct frame_info *fi;
+init_extra_frame_info (int fromleaf, struct frame_info *frame)
{
- fi->fsr = 0; /* Not yet allocated */
- fi->args_pointer = 0; /* Unknown */
- fi->locals_pointer = 0; /* Unknown */
+ frame->fsr = 0; /* Not yet allocated */
+ frame->args_pointer = 0; /* Unknown */
+ frame->locals_pointer = 0; /* Unknown */
}
\f
/* Examine an m88k function prologue, recording the addresses at which
derived from examination of the source to gcc 1.95, particularly
the routine output_prologue () in config/out-m88k.c.
- subu r31,r31,n # stack pointer update
+ subu r31,r31,n # stack pointer update
- (st rn,r31,offset)? # save incoming regs
+ (st rn,r31,offset)? # save incoming regs
(st.d rn,r31,offset)?
- (addu r30,r31,n)? # frame pointer update
+ (addu r30,r31,n)? # frame pointer update
- (pic sequence)? # PIC code prologue
+ (pic sequence)? # PIC code prologue
- (or rn,rm,0)? # Move parameters to other regs
-*/
+ (or rn,rm,0)? # Move parameters to other regs
+ */
/* Macros for extracting fields from instructions. */
* the state of certain machine registers and where the stack frame lives.
*/
-enum prologue_insn_action {
+enum prologue_insn_action
+{
PIA_SKIP, /* don't care what the instruction does */
PIA_NOTE_ST, /* note register stored and where */
PIA_NOTE_STD, /* note pair of registers stored and where */
PIA_NOTE_PROLOGUE_END, /* no more prologue */
};
-struct prologue_insns {
+struct prologue_insns
+ {
unsigned long insn;
unsigned long mask;
enum prologue_insn_action action;
-};
+ };
-struct prologue_insns prologue_insn_tbl[] = {
+struct prologue_insns prologue_insn_tbl[] =
+{
/* Various register move instructions */
- { 0x58000000, 0xf800ffff, PIA_SKIP }, /* or/or.u with immed of 0 */
- { 0xf4005800, 0xfc1fffe0, PIA_SKIP }, /* or rd, r0, rs */
- { 0xf4005800, 0xfc00ffff, PIA_SKIP }, /* or rd, rs, r0 */
+ {0x58000000, 0xf800ffff, PIA_SKIP}, /* or/or.u with immed of 0 */
+ {0xf4005800, 0xfc1fffe0, PIA_SKIP}, /* or rd, r0, rs */
+ {0xf4005800, 0xfc00ffff, PIA_SKIP}, /* or rd, rs, r0 */
/* Stack pointer setup: "subu sp, sp, n" where n is a multiple of 8 */
- { 0x67ff0000, 0xffff0007, PIA_NOTE_SP_ADJUSTMENT },
+ {0x67ff0000, 0xffff0007, PIA_NOTE_SP_ADJUSTMENT},
/* Frame pointer assignment: "addu r30, r31, n" */
- { 0x63df0000, 0xffff0000, PIA_NOTE_FP_ASSIGNMENT },
+ {0x63df0000, 0xffff0000, PIA_NOTE_FP_ASSIGNMENT},
/* Store to stack instructions; either "st rx, sp, n" or "st.d rx, sp, n" */
- { 0x241f0000, 0xfc1f0000, PIA_NOTE_ST }, /* st rx, sp, n */
- { 0x201f0000, 0xfc1f0000, PIA_NOTE_STD }, /* st.d rs, sp, n */
+ {0x241f0000, 0xfc1f0000, PIA_NOTE_ST}, /* st rx, sp, n */
+ {0x201f0000, 0xfc1f0000, PIA_NOTE_STD}, /* st.d rs, sp, n */
/* Instructions needed for setting up r25 for pic code. */
- { 0x5f200000, 0xffff0000, PIA_SKIP }, /* or.u r25, r0, offset_high */
- { 0xcc000002, 0xffffffff, PIA_SKIP }, /* bsr.n Lab */
- { 0x5b390000, 0xffff0000, PIA_SKIP }, /* or r25, r25, offset_low */
- { 0xf7396001, 0xffffffff, PIA_SKIP }, /* Lab: addu r25, r25, r1 */
+ {0x5f200000, 0xffff0000, PIA_SKIP}, /* or.u r25, r0, offset_high */
+ {0xcc000002, 0xffffffff, PIA_SKIP}, /* bsr.n Lab */
+ {0x5b390000, 0xffff0000, PIA_SKIP}, /* or r25, r25, offset_low */
+ {0xf7396001, 0xffffffff, PIA_SKIP}, /* Lab: addu r25, r25, r1 */
/* Various branch or jump instructions which have a delay slot -- these
do not form part of the prologue, but the instruction in the delay
slot might be a store instruction which should be noted. */
- { 0xc4000000, 0xe4000000, PIA_NOTE_PROLOGUE_END },
- /* br.n, bsr.n, bb0.n, or bb1.n */
- { 0xec000000, 0xfc000000, PIA_NOTE_PROLOGUE_END }, /* bcnd.n */
- { 0xf400c400, 0xfffff7e0, PIA_NOTE_PROLOGUE_END } /* jmp.n or jsr.n */
+ {0xc4000000, 0xe4000000, PIA_NOTE_PROLOGUE_END},
+ /* br.n, bsr.n, bb0.n, or bb1.n */
+ {0xec000000, 0xfc000000, PIA_NOTE_PROLOGUE_END}, /* bcnd.n */
+ {0xf400c400, 0xfffff7e0, PIA_NOTE_PROLOGUE_END} /* jmp.n or jsr.n */
};
is stored at 'pword1'. */
CORE_ADDR
-next_insn (memaddr, pword1)
- unsigned long *pword1;
- CORE_ADDR memaddr;
+next_insn (CORE_ADDR memaddr, unsigned long *pword1)
{
*pword1 = read_memory_integer (memaddr, BYTES_PER_88K_INSN);
return memaddr + BYTES_PER_88K_INSN;
/* Read a register from frames called by us (or from the hardware regs). */
static int
-read_next_frame_reg(fi, regno)
- FRAME fi;
- int regno;
+read_next_frame_reg (struct frame_info *frame, int regno)
{
- for (; fi; fi = fi->next) {
- if (regno == SP_REGNUM) return fi->frame;
- else if (fi->fsr->regs[regno])
- return read_memory_integer(fi->fsr->regs[regno], 4);
- }
- return read_register(regno);
+ for (; frame; frame = frame->next)
+ {
+ if (regno == SP_REGNUM)
+ return FRAME_FP (frame);
+ else if (frame->fsr->regs[regno])
+ return read_memory_integer (frame->fsr->regs[regno], 4);
+ }
+ return read_register (regno);
}
/* Examine the prologue of a function. `ip' points to the first instruction.
to reflect the offsets of the arg pointer and the locals pointer. */
static CORE_ADDR
-examine_prologue (ip, limit, frame_sp, fsr, fi)
- register CORE_ADDR ip;
- register CORE_ADDR limit;
- FRAME_ADDR frame_sp;
- struct frame_saved_regs *fsr;
- struct frame_info *fi;
+examine_prologue (register CORE_ADDR ip, register CORE_ADDR limit,
+ CORE_ADDR frame_sp, struct frame_saved_regs *fsr,
+ struct frame_info *fi)
{
register CORE_ADDR next_ip;
register int src;
- unsigned int insn;
+ unsigned long insn;
int size, offset;
char must_adjust[32]; /* If set, must adjust offsets in fsr */
int sp_offset = -1; /* -1 means not set (valid must be mult of 8) */
while (next_ip)
{
- struct prologue_insns *pip;
+ struct prologue_insns *pip;
- for (pip=prologue_insn_tbl; (insn & pip->mask) != pip->insn; )
- if (++pip >= prologue_insn_tbl + sizeof prologue_insn_tbl)
- goto end_of_prologue_found; /* not a prologue insn */
+ for (pip = prologue_insn_tbl; (insn & pip->mask) != pip->insn;)
+ if (++pip >= prologue_insn_tbl + sizeof prologue_insn_tbl)
+ goto end_of_prologue_found; /* not a prologue insn */
switch (pip->action)
{
- case PIA_NOTE_ST:
- case PIA_NOTE_STD:
- if (sp_offset != -1) {
- src = ST_SRC (insn);
- offset = ST_OFFSET (insn);
- must_adjust[src] = 1;
- fsr->regs[src++] = offset; /* Will be adjusted later */
- if (pip->action == PIA_NOTE_STD && src < 32)
- {
- offset += 4;
- must_adjust[src] = 1;
- fsr->regs[src++] = offset;
- }
+ case PIA_NOTE_ST:
+ case PIA_NOTE_STD:
+ if (sp_offset != -1)
+ {
+ src = ST_SRC (insn);
+ offset = ST_OFFSET (insn);
+ must_adjust[src] = 1;
+ fsr->regs[src++] = offset; /* Will be adjusted later */
+ if (pip->action == PIA_NOTE_STD && src < 32)
+ {
+ offset += 4;
+ must_adjust[src] = 1;
+ fsr->regs[src++] = offset;
+ }
}
- else
- goto end_of_prologue_found;
- break;
- case PIA_NOTE_SP_ADJUSTMENT:
- if (sp_offset == -1)
- sp_offset = -SUBU_OFFSET (insn);
- else
- goto end_of_prologue_found;
- break;
- case PIA_NOTE_FP_ASSIGNMENT:
- if (fp_offset == -1)
- fp_offset = ADDU_OFFSET (insn);
- else
- goto end_of_prologue_found;
- break;
- case PIA_NOTE_PROLOGUE_END:
- if (!prologue_end)
- prologue_end = ip;
- break;
- case PIA_SKIP:
- default :
- /* Do nothing */
- break;
+ else
+ goto end_of_prologue_found;
+ break;
+ case PIA_NOTE_SP_ADJUSTMENT:
+ if (sp_offset == -1)
+ sp_offset = -SUBU_OFFSET (insn);
+ else
+ goto end_of_prologue_found;
+ break;
+ case PIA_NOTE_FP_ASSIGNMENT:
+ if (fp_offset == -1)
+ fp_offset = ADDU_OFFSET (insn);
+ else
+ goto end_of_prologue_found;
+ break;
+ case PIA_NOTE_PROLOGUE_END:
+ if (!prologue_end)
+ prologue_end = ip;
+ break;
+ case PIA_SKIP:
+ default:
+ /* Do nothing */
+ break;
}
ip = next_ip;
end_of_prologue_found:
- if (prologue_end)
- ip = prologue_end;
+ if (prologue_end)
+ ip = prologue_end;
/* We're done with the prologue. If we don't care about the stack
frame itself, just return. (Note that fsr->regs has been trashed,
/*
OK, now we have:
- sp_offset original (before any alloca calls) displacement of SP
- (will be negative).
+ sp_offset original (before any alloca calls) displacement of SP
+ (will be negative).
- fp_offset displacement from original SP to the FP for this frame
- or -1.
+ fp_offset displacement from original SP to the FP for this frame
+ or -1.
- fsr->regs[0..31] displacement from original SP to the stack
- location where reg[0..31] is stored.
+ fsr->regs[0..31] displacement from original SP to the stack
+ location where reg[0..31] is stored.
- must_adjust[0..31] set if corresponding offset was set.
+ must_adjust[0..31] set if corresponding offset was set.
If alloca has been called between the function prologue and the current
IP, then the current SP (frame_sp) will not be the original SP as set by
Then, we figure out where the arguments and locals are, and relocate the
offsets in fsr->regs to absolute addresses. */
- if (fp_offset != -1) {
- /* We have a frame pointer, so get it, and base our calc's on it. */
- frame_fp = (CORE_ADDR) read_next_frame_reg (fi->next, ACTUAL_FP_REGNUM);
- frame_sp = frame_fp - fp_offset;
- } else {
- /* We have no frame pointer, therefore frame_sp is still the same value
- as set by prologue. But where is the frame itself? */
- if (must_adjust[SRP_REGNUM]) {
- /* Function header saved SRP (r1), the return address. Frame starts
- 4 bytes down from where it was saved. */
- frame_fp = frame_sp + fsr->regs[SRP_REGNUM] - 4;
- fi->locals_pointer = frame_fp;
- } else {
- /* Function header didn't save SRP (r1), so we are in a leaf fn or
- are otherwise confused. */
- frame_fp = -1;
+ if (fp_offset != -1)
+ {
+ /* We have a frame pointer, so get it, and base our calc's on it. */
+ frame_fp = (CORE_ADDR) read_next_frame_reg (fi->next, ACTUAL_FP_REGNUM);
+ frame_sp = frame_fp - fp_offset;
+ }
+ else
+ {
+ /* We have no frame pointer, therefore frame_sp is still the same value
+ as set by prologue. But where is the frame itself? */
+ if (must_adjust[SRP_REGNUM])
+ {
+ /* Function header saved SRP (r1), the return address. Frame starts
+ 4 bytes down from where it was saved. */
+ frame_fp = frame_sp + fsr->regs[SRP_REGNUM] - 4;
+ fi->locals_pointer = frame_fp;
+ }
+ else
+ {
+ /* Function header didn't save SRP (r1), so we are in a leaf fn or
+ are otherwise confused. */
+ frame_fp = -1;
+ }
}
- }
/* The locals are relative to the FP (whether it exists as an allocated
register, or just as an assumed offset from the SP) */
for (src = 0; src < 32; src++)
if (must_adjust[src])
fsr->regs[src] += frame_sp;
-
+
/* The saved value of the SP is always known. */
/* (we hope...) */
- if (fsr->regs[SP_REGNUM] != 0
- && fsr->regs[SP_REGNUM] != frame_sp - sp_offset)
- fprintf_unfiltered(gdb_stderr, "Bad saved SP value %x != %x, offset %x!\n",
- fsr->regs[SP_REGNUM],
- frame_sp - sp_offset, sp_offset);
+ if (fsr->regs[SP_REGNUM] != 0
+ && fsr->regs[SP_REGNUM] != frame_sp - sp_offset)
+ fprintf_unfiltered (gdb_stderr, "Bad saved SP value %lx != %lx, offset %x!\n",
+ fsr->regs[SP_REGNUM],
+ frame_sp - sp_offset, sp_offset);
fsr->regs[SP_REGNUM] = frame_sp - sp_offset;
prologue. */
CORE_ADDR
-skip_prologue (ip)
- CORE_ADDR (ip);
+m88k_skip_prologue (CORE_ADDR ip)
{
struct frame_saved_regs saved_regs_dummy;
struct symtab_and_line sal;
sal = find_pc_line (ip, 0);
limit = (sal.end) ? sal.end : 0xffffffff;
- return (examine_prologue (ip, limit, (FRAME_ADDR) 0, &saved_regs_dummy,
- (struct frame_info *)0 ));
+ return (examine_prologue (ip, limit, (CORE_ADDR) 0, &saved_regs_dummy,
+ (struct frame_info *) 0));
}
/* Put here the code to store, into a struct frame_saved_regs,
ways in the stack frame. sp is even more special:
the address we return for it IS the sp for the next frame.
- We cache the result of doing this in the frame_cache_obstack, since
- it is fairly expensive. */
+ We cache the result of doing this in the frame_obstack, since it is
+ fairly expensive. */
void
-frame_find_saved_regs (fi, fsr)
- struct frame_info *fi;
- struct frame_saved_regs *fsr;
+frame_find_saved_regs (struct frame_info *fi, struct frame_saved_regs *fsr)
{
register struct frame_saved_regs *cache_fsr;
- extern struct obstack frame_cache_obstack;
CORE_ADDR ip;
struct symtab_and_line sal;
CORE_ADDR limit;
if (!fi->fsr)
{
cache_fsr = (struct frame_saved_regs *)
- obstack_alloc (&frame_cache_obstack,
- sizeof (struct frame_saved_regs));
+ frame_obstack_alloc (sizeof (struct frame_saved_regs));
memset (cache_fsr, '\0', sizeof (struct frame_saved_regs));
fi->fsr = cache_fsr;
/* Find the start and end of the function prologue. If the PC
- is in the function prologue, we only consider the part that
- has executed already. In the case where the PC is not in
- the function prologue, we set limit to two instructions beyond
- where the prologue ends in case if any of the prologue instructions
- were moved into a delay slot of a branch instruction. */
-
+ is in the function prologue, we only consider the part that
+ has executed already. In the case where the PC is not in
+ the function prologue, we set limit to two instructions beyond
+ where the prologue ends in case if any of the prologue instructions
+ were moved into a delay slot of a branch instruction. */
+
ip = get_pc_function_start (fi->pc);
sal = find_pc_line (ip, 0);
- limit = (sal.end && sal.end < fi->pc) ? sal.end + 2 * BYTES_PER_88K_INSN
- : fi->pc;
+ limit = (sal.end && sal.end < fi->pc) ? sal.end + 2 * BYTES_PER_88K_INSN
+ : fi->pc;
/* This will fill in fields in *fi as well as in cache_fsr. */
#ifdef SIGTRAMP_FRAME_FIXUP
if (fi->signal_handler_caller)
- SIGTRAMP_FRAME_FIXUP(fi->frame);
+ SIGTRAMP_FRAME_FIXUP (fi->frame);
#endif
examine_prologue (ip, limit, fi->frame, cache_fsr, fi);
#ifdef SIGTRAMP_SP_FIXUP
if (fi->signal_handler_caller && fi->fsr->regs[SP_REGNUM])
- SIGTRAMP_SP_FIXUP(fi->fsr->regs[SP_REGNUM]);
+ SIGTRAMP_SP_FIXUP (fi->fsr->regs[SP_REGNUM]);
#endif
}
argument pointer, so this is the same as frame_args_address(). */
CORE_ADDR
-frame_locals_address (fi)
- struct frame_info *fi;
+frame_locals_address (struct frame_info *fi)
{
struct frame_saved_regs fsr;
- if (fi->args_pointer) /* Cached value is likely there. */
+ if (fi->args_pointer) /* Cached value is likely there. */
return fi->args_pointer;
/* Nope, generate it. */
described by FI. Returns 0 if the address is unknown. */
CORE_ADDR
-frame_args_address (fi)
- struct frame_info *fi;
+frame_args_address (struct frame_info *fi)
{
struct frame_saved_regs fsr;
just use the register SRP_REGNUM itself. */
CORE_ADDR
-frame_saved_pc (frame)
- FRAME frame;
+frame_saved_pc (struct frame_info *frame)
{
- return read_next_frame_reg(frame, SRP_REGNUM);
+ return read_next_frame_reg (frame, SRP_REGNUM);
}
#define DUMMY_FRAME_SIZE 192
static void
-write_word (sp, word)
- CORE_ADDR sp;
- unsigned LONGEST word;
+write_word (CORE_ADDR sp, ULONGEST word)
{
register int len = REGISTER_SIZE;
char buffer[MAX_REGISTER_RAW_SIZE];
}
void
-m88k_push_dummy_frame()
+m88k_push_dummy_frame (void)
{
register CORE_ADDR sp = read_register (SP_REGNUM);
register int rn;
sp -= DUMMY_FRAME_SIZE; /* allocate a bunch of space */
- for (rn = 0, offset = 0; rn <= SP_REGNUM; rn++, offset+=4)
- write_word (sp+offset, read_register(rn));
-
- write_word (sp+offset, read_register (SXIP_REGNUM));
+ for (rn = 0, offset = 0; rn <= SP_REGNUM; rn++, offset += 4)
+ write_word (sp + offset, read_register (rn));
+
+ write_word (sp + offset, read_register (SXIP_REGNUM));
offset += 4;
- write_word (sp+offset, read_register (SNIP_REGNUM));
+ write_word (sp + offset, read_register (SNIP_REGNUM));
offset += 4;
- write_word (sp+offset, read_register (SFIP_REGNUM));
+ write_word (sp + offset, read_register (SFIP_REGNUM));
offset += 4;
- write_word (sp+offset, read_register (PSR_REGNUM));
+ write_word (sp + offset, read_register (PSR_REGNUM));
offset += 4;
- write_word (sp+offset, read_register (FPSR_REGNUM));
+ write_word (sp + offset, read_register (FPSR_REGNUM));
offset += 4;
- write_word (sp+offset, read_register (FPCR_REGNUM));
+ write_word (sp + offset, read_register (FPCR_REGNUM));
offset += 4;
write_register (SP_REGNUM, sp);
}
void
-pop_frame ()
+pop_frame (void)
{
- register FRAME frame = get_current_frame ();
- register CORE_ADDR fp;
+ register struct frame_info *frame = get_current_frame ();
register int regnum;
struct frame_saved_regs fsr;
- struct frame_info *fi;
- fi = get_frame_info (frame);
- fp = fi -> frame;
- get_frame_saved_regs (fi, &fsr);
+ get_frame_saved_regs (frame, &fsr);
- if (PC_IN_CALL_DUMMY (read_pc(), read_register(SP_REGNUM), FRAME_FP(fi)))
+ if (PC_IN_CALL_DUMMY (read_pc (), read_register (SP_REGNUM), frame->frame))
{
/* FIXME: I think get_frame_saved_regs should be handling this so
- that we can deal with the saved registers properly (e.g. frame
- 1 is a call dummy, the user types "frame 2" and then "print $ps"). */
+ that we can deal with the saved registers properly (e.g. frame
+ 1 is a call dummy, the user types "frame 2" and then "print $ps"). */
register CORE_ADDR sp = read_register (ACTUAL_FP_REGNUM);
int offset;
- for (regnum = 0, offset = 0; regnum <= SP_REGNUM; regnum++, offset+=4)
- (void) write_register (regnum, read_memory_integer (sp+offset, 4));
-
- write_register (SXIP_REGNUM, read_memory_integer (sp+offset, 4));
+ for (regnum = 0, offset = 0; regnum <= SP_REGNUM; regnum++, offset += 4)
+ (void) write_register (regnum, read_memory_integer (sp + offset, 4));
+
+ write_register (SXIP_REGNUM, read_memory_integer (sp + offset, 4));
offset += 4;
- write_register (SNIP_REGNUM, read_memory_integer (sp+offset, 4));
+ write_register (SNIP_REGNUM, read_memory_integer (sp + offset, 4));
offset += 4;
- write_register (SFIP_REGNUM, read_memory_integer (sp+offset, 4));
+ write_register (SFIP_REGNUM, read_memory_integer (sp + offset, 4));
offset += 4;
- write_register (PSR_REGNUM, read_memory_integer (sp+offset, 4));
+ write_register (PSR_REGNUM, read_memory_integer (sp + offset, 4));
offset += 4;
- write_register (FPSR_REGNUM, read_memory_integer (sp+offset, 4));
+ write_register (FPSR_REGNUM, read_memory_integer (sp + offset, 4));
offset += 4;
- write_register (FPCR_REGNUM, read_memory_integer (sp+offset, 4));
+ write_register (FPCR_REGNUM, read_memory_integer (sp + offset, 4));
offset += 4;
}
- else
+ else
{
- for (regnum = FP_REGNUM ; regnum > 0 ; regnum--)
- if (fsr.regs[regnum])
- write_register (regnum,
- read_memory_integer (fsr.regs[regnum], 4));
- write_pc(frame_saved_pc(frame));
+ for (regnum = FP_REGNUM; regnum > 0; regnum--)
+ if (fsr.regs[regnum])
+ write_register (regnum,
+ read_memory_integer (fsr.regs[regnum], 4));
+ write_pc (frame_saved_pc (frame));
}
reinit_frame_cache ();
}
+
+void
+_initialize_m88k_tdep (void)
+{
+ tm_print_insn = print_insn_m88k;
+}