/* Target-dependent code for Hitachi Super-H, for GDB.
- Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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. */
/*
- Contributed by Steve Chamberlain
- sac@cygnus.com
+ Contributed by Steve Chamberlain
+ sac@cygnus.com
*/
#include "defs.h"
#include "inferior.h" /* for BEFORE_TEXT_END etc. */
#include "gdb_string.h"
-extern int remote_write_size; /* in remote.c */
-
-/* Default to the original SH. */
-
-#define DEFAULT_SH_TYPE "sh"
-
-/* This value is the model of SH in use. */
-
-char *sh_processor_type;
-
-char *tmp_sh_processor_type;
-
/* A set of original names, to be used when restoring back to generic
registers from a specific set. */
+/* *INDENT-OFF* */
+static char *sh_generic_reg_names[] = {
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+ "pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
+ "fpul", "fpscr",
+ "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
+ "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
+ "ssr", "spc",
+ "r0b0", "r1b0", "r2b0", "r3b0", "r4b0", "r5b0", "r6b0", "r7b0",
+ "r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1",
+};
-char *sh_generic_reg_names[] = REGISTER_NAMES;
-
-char *sh_reg_names[] = {
+static char *sh_reg_names[] = {
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
"pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
"", "", "", "", "", "", "", "",
};
-char *sh3_reg_names[] = {
+static char *sh3_reg_names[] = {
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
"pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
"r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1"
};
-char *sh3e_reg_names[] = {
+static char *sh3e_reg_names[] = {
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
"pc", "pr", "gbr", "vbr", "mach", "macl", "sr",
"r0b0", "r1b0", "r2b0", "r3b0", "r4b0", "r5b0", "r6b0", "r7b0",
"r0b1", "r1b1", "r2b1", "r3b1", "r4b1", "r5b1", "r6b1", "r7b1",
};
+/* *INDENT-ON* */
-struct {
- char *name;
- char **regnames;
-} sh_processor_type_table[] = {
- { "sh", sh_reg_names },
- { "sh3", sh3_reg_names },
- { "sh3e", sh3e_reg_names },
- { NULL, NULL }
+#ifdef _WIN32_WCE
+char **sh_register_names = sh3_reg_names;
+#else
+char **sh_register_names = sh_generic_reg_names;
+#endif
+
+struct
+ {
+ char **regnames;
+ int mach;
+ }
+sh_processor_type_table[] =
+{
+ {
+ sh_reg_names, bfd_mach_sh
+ }
+ ,
+ {
+ sh_reg_names, bfd_mach_sh2
+ }
+ ,
+ {
+ sh3_reg_names, bfd_mach_sh3
+ }
+ ,
+ {
+ sh3e_reg_names, bfd_mach_sh3e
+ }
+ ,
+ {
+ NULL, 0
+ }
};
/* Prologue looks like
- [mov.l <regs>,@-r15]...
- [sts.l pr,@-r15]
- [mov.l r14,@-r15]
- [mov r15,r14]
-*/
+ [mov.l <regs>,@-r15]...
+ [sts.l pr,@-r15]
+ [mov.l r14,@-r15]
+ [mov r15,r14]
+ */
#define IS_STS(x) ((x) == 0x4f22)
#define IS_PUSH(x) (((x) & 0xff0f) == 0x2f06)
#define IS_MOV_R3(x) (((x) & 0xff00) == 0x1a00)
#define IS_SHLL_R3(x) ((x) == 0x4300)
#define IS_ADD_R3SP(x) ((x) == 0x3f3c)
+#define IS_FMOV(x) (((x) & 0xf00f) == 0xf00b)
+#define FPSCR_SZ (1 << 20)
+
+
+/* Should call_function allocate stack space for a struct return? */
+int
+sh_use_struct_convention (gcc_p, type)
+ int gcc_p;
+ struct type *type;
+{
+ return (TYPE_LENGTH (type) > 1);
+}
+
/* Skip any prologue before the guts of a function */
w = read_memory_integer (start_pc, 2);
while (IS_STS (w)
+ || IS_FMOV (w)
|| IS_PUSH (w)
|| IS_MOV_SP_FP (w)
|| IS_MOV_R3 (w)
for (; fi; fi = fi->next)
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
/* When the caller requests PR from the dummy frame, we return PC because
- that's where the previous routine appears to have done a call from. */
+ that's where the previous routine appears to have done a call from. */
return generic_read_register_dummy (fi->pc, fi->frame, regnum);
- else
+ else
{
- FRAME_FIND_SAVED_REGS(fi, fsr);
+ FRAME_FIND_SAVED_REGS (fi, fsr);
if (fsr.regs[regnum] != 0)
- return read_memory_integer (fsr.regs[regnum],
- REGISTER_RAW_SIZE(regnum));
+ return read_memory_integer (fsr.regs[regnum],
+ REGISTER_RAW_SIZE (regnum));
}
return read_register (regnum);
}
int opc;
int insn;
int r3_val = 0;
- char * dummy_regs = generic_find_dummy_frame (fi->pc, fi->frame);
+ char *dummy_regs = generic_find_dummy_frame (fi->pc, fi->frame);
if (dummy_regs)
{
/* DANGER! This is ONLY going to work if the char buffer format of
- the saved registers is byte-for-byte identical to the
- CORE_ADDR regs[NUM_REGS] format used by struct frame_saved_regs! */
- memcpy (&fsr->regs, dummy_regs, sizeof(fsr));
+ the saved registers is byte-for-byte identical to the
+ CORE_ADDR regs[NUM_REGS] format used by struct frame_saved_regs! */
+ memcpy (&fsr->regs, dummy_regs, sizeof (fsr));
return;
}
depth = 0;
- /* Loop around examining the prologue insns, but give up
- after 15 of them, since we're getting silly then */
- while (pc < opc + 15 * 2)
+ /* Loop around examining the prologue insns until we find something
+ that does not appear to be part of the prologue. But give up
+ after 20 of them, since we're getting silly then. */
+
+ while (pc < opc + 20 * 2)
{
/* See where the registers will be saved to */
if (IS_PUSH (insn))
depth -= ((insn & 0xff) ^ 0x80) - 0x80;
insn = read_memory_integer (pc, 2);
}
+ else if (IS_FMOV (insn))
+ {
+ pc += 2;
+ insn = read_memory_integer (pc, 2);
+ if (read_register (FPSCR_REGNUM) & FPSCR_SZ)
+ {
+ depth += 8;
+ }
+ else
+ {
+ depth += 4;
+ }
+ }
else
break;
}
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
{
/* We need to setup fi->frame here because run_stack_dummy gets it wrong
- by assuming it's always FP. */
- fi->frame = generic_read_register_dummy (fi->pc, fi->frame,
- SP_REGNUM);
- fi->return_pc = generic_read_register_dummy (fi->pc, fi->frame,
+ by assuming it's always FP. */
+ fi->frame = generic_read_register_dummy (fi->pc, fi->frame,
+ SP_REGNUM);
+ fi->return_pc = generic_read_register_dummy (fi->pc, fi->frame,
PC_REGNUM);
fi->f_offset = -(CALL_DUMMY_LENGTH + 4);
fi->leaf_function = 0;
if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
generic_pop_dummy_frame ();
else
- {
- fp = FRAME_FP (frame);
- get_frame_saved_regs (frame, &fsr);
+ {
+ fp = FRAME_FP (frame);
+ get_frame_saved_regs (frame, &fsr);
- /* Copy regs from where they were saved in the frame */
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- if (fsr.regs[regnum])
- write_register (regnum, read_memory_integer (fsr.regs[regnum], 4));
+ /* Copy regs from where they were saved in the frame */
+ for (regnum = 0; regnum < NUM_REGS; regnum++)
+ if (fsr.regs[regnum])
+ write_register (regnum, read_memory_integer (fsr.regs[regnum], 4));
- write_register (PC_REGNUM, frame->return_pc);
- write_register (SP_REGNUM, fp + 4);
- }
+ write_register (PC_REGNUM, frame->return_pc);
+ write_register (SP_REGNUM, fp + 4);
+ }
flush_cached_frames ();
}
bug. Arguments of these odd sizes are left-justified within the
word (as opposed to arguments smaller than 4 bytes, which are
right-justified).
-
+
If the function is to return an aggregate type such as a struct, it
is either returned in the normal return value register R0 (if its
/* The "struct return pointer" pseudo-argument has its own dedicated
register */
if (struct_return)
- write_register (STRUCT_RETURN_REGNUM, struct_addr);
+ write_register (STRUCT_RETURN_REGNUM, struct_addr);
/* Now make sure there's space on the stack */
for (argnum = 0, stack_alloc = 0;
argnum < nargs; argnum++)
- stack_alloc += ((TYPE_LENGTH(VALUE_TYPE(args[argnum])) + 3) & ~3);
- sp -= stack_alloc; /* make room on stack for args */
+ stack_alloc += ((TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 3) & ~3);
+ sp -= stack_alloc; /* make room on stack for args */
/* Now load as many as possible of the first arguments into
for (argnum = 0, stack_offset = 0; argnum < nargs; argnum++)
{
type = VALUE_TYPE (args[argnum]);
- len = TYPE_LENGTH (type);
- memset(valbuf, 0, sizeof(valbuf));
+ len = TYPE_LENGTH (type);
+ memset (valbuf, 0, sizeof (valbuf));
if (len < 4)
- { /* value gets right-justified in the register or stack word */
- memcpy(valbuf + (4 - len),
- (char *) VALUE_CONTENTS (args[argnum]), len);
- val = valbuf;
- }
+ { /* value gets right-justified in the register or stack word */
+ memcpy (valbuf + (4 - len),
+ (char *) VALUE_CONTENTS (args[argnum]), len);
+ val = valbuf;
+ }
else
- val = (char *) VALUE_CONTENTS (args[argnum]);
+ val = (char *) VALUE_CONTENTS (args[argnum]);
if (len > 4 && (len & 3) != 0)
- odd_sized_struct = 1; /* such structs go entirely on stack */
- else
+ odd_sized_struct = 1; /* such structs go entirely on stack */
+ else
odd_sized_struct = 0;
while (len > 0)
{
if (argreg > ARGLAST_REGNUM || odd_sized_struct)
- { /* must go on the stack */
+ { /* must go on the stack */
write_memory (sp + stack_offset, val, 4);
stack_offset += 4;
}
That's because some *&^%$ things get passed on the stack
AND in the registers! */
if (argreg <= ARGLAST_REGNUM)
- { /* there's room in a register */
- regval = extract_address (val, REGISTER_RAW_SIZE(argreg));
+ { /* there's room in a register */
+ regval = extract_address (val, REGISTER_RAW_SIZE (argreg));
write_register (argreg++, regval);
}
/* Store the value 4 bytes at a time. This means that things
larger than 4 bytes may go partly in registers and partly
on the stack. */
- len -= REGISTER_RAW_SIZE(argreg);
- val += REGISTER_RAW_SIZE(argreg);
+ len -= REGISTER_RAW_SIZE (argreg);
+ val += REGISTER_RAW_SIZE (argreg);
}
}
return sp;
it into a register using PC-relative addressing. This function
expects the CALL_DUMMY to look like this:
- mov.w @(2,PC), R8
- jsr @R8
- nop
- trap
- <destination>
- */
+ mov.w @(2,PC), R8
+ jsr @R8
+ nop
+ trap
+ <destination>
+ */
#if 0
void
}
#endif
-/* Function: get_saved_register
- Just call the generic_get_saved_register function. */
-
-void
-get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
- char *raw_buffer;
- int *optimized;
- CORE_ADDR *addrp;
- struct frame_info *frame;
- int regnum;
- enum lval_type *lval;
-{
- generic_get_saved_register (raw_buffer, optimized, addrp,
- frame, regnum, lval);
-}
-
-
-/* Command to set the processor type. */
-
-void
-sh_set_processor_type_command (args, from_tty)
- char *args;
- int from_tty;
-{
- int i;
- char *temp;
-
- /* The `set' commands work by setting the value, then calling the hook,
- so we let the general command modify a scratch location, then decide
- here if we really want to modify the processor type. */
- if (tmp_sh_processor_type == NULL || *tmp_sh_processor_type == '\0')
- {
- printf_unfiltered ("The known SH processor types are as follows:\n\n");
- for (i = 0; sh_processor_type_table[i].name != NULL; ++i)
- printf_unfiltered ("%s\n", sh_processor_type_table[i].name);
-
- /* Restore the value. */
- tmp_sh_processor_type = strsave (sh_processor_type);
-
- return;
- }
-
- if (!sh_set_processor_type (tmp_sh_processor_type))
- {
- /* Restore to a valid value before erroring out. */
- temp = tmp_sh_processor_type;
- tmp_sh_processor_type = strsave (sh_processor_type);
- error ("Unknown processor type `%s'.", temp);
- }
-}
-
-/* This is a dummy not actually run. */
-
-static void
-sh_show_processor_type_command (args, from_tty)
- char *args;
- int from_tty;
-{
-}
/* Modify the actual processor type. */
int
-sh_set_processor_type (str)
- char *str;
+sh_target_architecture_hook (ap)
+ const bfd_arch_info_type *ap;
{
int i, j;
- if (str == NULL)
+ if (ap->arch != bfd_arch_sh)
return 0;
- for (i = 0; sh_processor_type_table[i].name != NULL; ++i)
+ for (i = 0; sh_processor_type_table[i].regnames != NULL; i++)
{
- if (strcasecmp (str, sh_processor_type_table[i].name) == 0)
+ if (sh_processor_type_table[i].mach == ap->mach)
{
- sh_processor_type = str;
-
- for (j = 0; j < NUM_REGS; ++j)
- reg_names[j] = sh_processor_type_table[i].regnames[j];
-
+ sh_register_names = sh_processor_type_table[i].regnames;
return 1;
}
}
- return 0;
+ internal_error ("Architecture `%s' unreconized", ap->printable_name);
}
/* Print the registers in a form similar to the E7000 */
char *args;
int from_tty;
{
- int cpu = 0;
-
- if (strcmp (sh_processor_type, "sh3") == 0)
- cpu = 1;
- else if (strcmp (sh_processor_type, "sh3e") == 0)
- cpu = 2;
-
- printf_filtered ("PC=%08x SR=%08x PR=%08x MACH=%08x MACHL=%08x\n",
- read_register (PC_REGNUM),
- read_register (SR_REGNUM),
- read_register (PR_REGNUM),
- read_register (MACH_REGNUM),
- read_register (MACL_REGNUM));
-
- printf_filtered ("GBR=%08x VBR=%08x",
- read_register (GBR_REGNUM),
- read_register (VBR_REGNUM));
- if (cpu == 1 || cpu == 2)
+ int cpu;
+ if (TARGET_ARCHITECTURE->arch == bfd_arch_sh)
+ cpu = TARGET_ARCHITECTURE->mach;
+ else
+ cpu = 0;
+
+ printf_filtered ("PC=%s SR=%08lx PR=%08lx MACH=%08lx MACHL=%08lx\n",
+ paddr (read_register (PC_REGNUM)),
+ (long) read_register (SR_REGNUM),
+ (long) read_register (PR_REGNUM),
+ (long) read_register (MACH_REGNUM),
+ (long) read_register (MACL_REGNUM));
+
+ printf_filtered ("GBR=%08lx VBR=%08lx",
+ (long) read_register (GBR_REGNUM),
+ (long) read_register (VBR_REGNUM));
+ if (cpu == bfd_mach_sh3 || cpu == bfd_mach_sh3e)
{
- printf_filtered (" SSR=%08x SPC=%08x",
- read_register (SSR_REGNUM),
- read_register (SPC_REGNUM));
- if (cpu ==2)
- {
- printf_filtered (" FPUL=%08x FPSCR=%08x",
- read_register (FPUL_REGNUM),
- read_register (FPSCR_REGNUM));
- }
+ printf_filtered (" SSR=%08lx SPC=%08lx",
+ (long) read_register (SSR_REGNUM),
+ (long) read_register (SPC_REGNUM));
+ if (cpu == bfd_mach_sh3e)
+ {
+ printf_filtered (" FPUL=%08lx FPSCR=%08lx",
+ (long) read_register (FPUL_REGNUM),
+ (long) read_register (FPSCR_REGNUM));
+ }
}
- printf_filtered ("\nR0-R7 %08x %08x %08x %08x %08x %08x %08x %08x\n",
- read_register (0),
- read_register (1),
- read_register (2),
- read_register (3),
- read_register (4),
- read_register (5),
- read_register (6),
- read_register (7));
- printf_filtered ("R8-R15 %08x %08x %08x %08x %08x %08x %08x %08x\n",
- read_register (8),
- read_register (9),
- read_register (10),
- read_register (11),
- read_register (12),
- read_register (13),
- read_register (14),
- read_register (15));
- if (cpu == 2)
+ printf_filtered ("\nR0-R7 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+ (long) read_register (0),
+ (long) read_register (1),
+ (long) read_register (2),
+ (long) read_register (3),
+ (long) read_register (4),
+ (long) read_register (5),
+ (long) read_register (6),
+ (long) read_register (7));
+ printf_filtered ("R8-R15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+ (long) read_register (8),
+ (long) read_register (9),
+ (long) read_register (10),
+ (long) read_register (11),
+ (long) read_register (12),
+ (long) read_register (13),
+ (long) read_register (14),
+ (long) read_register (15));
+ if (cpu == bfd_mach_sh3e)
{
- printf_filtered ("FP0-FP7 %08x %08x %08x %08x %08x %08x %08x %08x\n",
- read_register (FP0_REGNUM + 0),
- read_register (FP0_REGNUM + 1),
- read_register (FP0_REGNUM + 2),
- read_register (FP0_REGNUM + 3),
- read_register (FP0_REGNUM + 4),
- read_register (FP0_REGNUM + 5),
- read_register (FP0_REGNUM + 6),
- read_register (FP0_REGNUM + 7));
- printf_filtered ("FP8-FP15 %08x %08x %08x %08x %08x %08x %08x %08x\n",
- read_register (FP0_REGNUM + 8),
- read_register (FP0_REGNUM + 9),
- read_register (FP0_REGNUM + 10),
- read_register (FP0_REGNUM + 11),
- read_register (FP0_REGNUM + 12),
- read_register (FP0_REGNUM + 13),
- read_register (FP0_REGNUM + 14),
- read_register (FP0_REGNUM + 15));
+ printf_filtered ("FP0-FP7 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+ (long) read_register (FP0_REGNUM + 0),
+ (long) read_register (FP0_REGNUM + 1),
+ (long) read_register (FP0_REGNUM + 2),
+ (long) read_register (FP0_REGNUM + 3),
+ (long) read_register (FP0_REGNUM + 4),
+ (long) read_register (FP0_REGNUM + 5),
+ (long) read_register (FP0_REGNUM + 6),
+ (long) read_register (FP0_REGNUM + 7));
+ printf_filtered ("FP8-FP15 %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
+ (long) read_register (FP0_REGNUM + 8),
+ (long) read_register (FP0_REGNUM + 9),
+ (long) read_register (FP0_REGNUM + 10),
+ (long) read_register (FP0_REGNUM + 11),
+ (long) read_register (FP0_REGNUM + 12),
+ (long) read_register (FP0_REGNUM + 13),
+ (long) read_register (FP0_REGNUM + 14),
+ (long) read_register (FP0_REGNUM + 15));
}
}
void *regbuf;
void *valbuf;
{
- int len = TYPE_LENGTH(type);
+ int len = TYPE_LENGTH (type);
if (len <= 4)
memcpy (valbuf, ((char *) regbuf) + 4 - len, len);
tm_print_insn = gdb_print_insn_sh;
- c = add_set_cmd ("processor", class_support, var_string_noescape,
- (char *) &tmp_sh_processor_type,
- "Set the type of SH processor in use.\n\
-Set this to be able to access processor-type-specific registers.\n\
-",
- &setlist);
- c->function.cfunc = sh_set_processor_type_command;
- c = add_show_from_set (c, &showlist);
- c->function.cfunc = sh_show_processor_type_command;
-
- tmp_sh_processor_type = strsave (DEFAULT_SH_TYPE);
- sh_set_processor_type_command (strsave (DEFAULT_SH_TYPE), 0);
+ target_architecture_hook = sh_target_architecture_hook;
add_com ("regs", class_vars, sh_show_regs, "Print all registers");
}
projects / deliverable / binutils-gdb.git / blobdiff