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f42accbe77
* gdbarch.sh (deprecated_register_bytes): Delete. * gdbarch.h, gdbarch.c: Re-generate. * regcache.c (deprecated_register_bytes): New function. * regcache.h (deprecated_register_bytes): Declare. * xstormy16-tdep.c (xstormy16_gdbarch_init): Update. * v850-tdep.c (v850_gdbarch_init): Update. * sh64-tdep.c (sh64_gdbarch_init): Update. * ns32k-tdep.c (ns32k_gdbarch_init_32082): Update. * mn10300-tdep.c (mn10300_gdbarch_init): Update. * mcore-tdep.c (mcore_gdbarch_init): Update. * cris-tdep.c (cris_gdbarch_init): Update. * arm-tdep.c (arm_gdbarch_init): Update. * remote.c (init_remote_state): Update. * remote-vx.c (vx_prepare_to_store): Update. * remote-sds.c (sds_fetch_registers, sds_prepare_to_store): Update. * irix5-nat.c (fetch_core_registers): Update. * cris-tdep.c (cris_register_bytes_ok): Update. * config/nm-gnu.h (CHILD_PREPARE_TO_STORE): Update.
1343 lines
40 KiB
C
1343 lines
40 KiB
C
/* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger.
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
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Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "frame.h"
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#include "inferior.h"
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#include "target.h"
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#include "value.h"
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#include "bfd.h"
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#include "gdb_string.h"
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#include "gdbcore.h"
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#include "objfiles.h"
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#include "regcache.h"
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#include "arch-utils.h"
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#include "gdb_assert.h"
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#include "dis-asm.h"
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#define D0_REGNUM 0
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#define D2_REGNUM 2
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#define D3_REGNUM 3
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#define A0_REGNUM 4
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#define A2_REGNUM 6
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#define A3_REGNUM 7
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#define MDR_REGNUM 10
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#define PSW_REGNUM 11
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#define LIR_REGNUM 12
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#define LAR_REGNUM 13
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#define MDRQ_REGNUM 14
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#define E0_REGNUM 15
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#define MCRH_REGNUM 26
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#define MCRL_REGNUM 27
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#define MCVF_REGNUM 28
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enum movm_register_bits {
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movm_exother_bit = 0x01,
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movm_exreg1_bit = 0x02,
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movm_exreg0_bit = 0x04,
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movm_other_bit = 0x08,
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movm_a3_bit = 0x10,
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movm_a2_bit = 0x20,
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movm_d3_bit = 0x40,
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movm_d2_bit = 0x80
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};
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extern void _initialize_mn10300_tdep (void);
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static CORE_ADDR mn10300_analyze_prologue (struct frame_info *fi,
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CORE_ADDR pc);
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/* mn10300 private data */
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struct gdbarch_tdep
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{
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int am33_mode;
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#define AM33_MODE (gdbarch_tdep (current_gdbarch)->am33_mode)
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};
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/* Additional info used by the frame */
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struct frame_extra_info
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{
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int status;
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int stack_size;
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};
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static char *
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register_name (int reg, char **regs, long sizeof_regs)
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{
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if (reg < 0 || reg >= sizeof_regs / sizeof (regs[0]))
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return NULL;
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else
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return regs[reg];
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}
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static const char *
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mn10300_generic_register_name (int reg)
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{
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static char *regs[] =
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{ "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3",
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"sp", "pc", "mdr", "psw", "lir", "lar", "", "",
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"", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "fp"
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};
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return register_name (reg, regs, sizeof regs);
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}
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static const char *
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am33_register_name (int reg)
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{
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static char *regs[] =
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{ "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3",
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"sp", "pc", "mdr", "psw", "lir", "lar", "",
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"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
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"ssp", "msp", "usp", "mcrh", "mcrl", "mcvf", "", "", ""
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};
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return register_name (reg, regs, sizeof regs);
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}
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static CORE_ADDR
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mn10300_saved_pc_after_call (struct frame_info *fi)
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{
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return read_memory_integer (read_register (SP_REGNUM), 4);
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}
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static void
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mn10300_extract_return_value (struct gdbarch *gdbarch, struct type *type,
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struct regcache *regcache, void *valbuf)
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{
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char buf[MAX_REGISTER_SIZE];
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int len = TYPE_LENGTH (type);
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int reg, regsz;
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if (TYPE_CODE (type) == TYPE_CODE_PTR)
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reg = 4;
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else
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reg = 0;
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regsz = register_size (gdbarch, reg);
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if (len <= regsz)
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{
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regcache_raw_read (regcache, reg, buf);
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memcpy (valbuf, buf, len);
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}
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else if (len <= 2 * regsz)
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{
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regcache_raw_read (regcache, reg, buf);
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memcpy (valbuf, buf, regsz);
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gdb_assert (regsz == register_size (gdbarch, reg + 1));
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regcache_raw_read (regcache, reg + 1, buf);
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memcpy ((char *) valbuf + regsz, buf, len - regsz);
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}
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else
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internal_error (__FILE__, __LINE__,
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"Cannot extract return value %d bytes long.", len);
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}
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static void
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mn10300_store_return_value (struct gdbarch *gdbarch, struct type *type,
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struct regcache *regcache, const void *valbuf)
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{
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int len = TYPE_LENGTH (type);
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int reg, regsz;
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if (TYPE_CODE (type) == TYPE_CODE_PTR)
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reg = 4;
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else
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reg = 0;
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regsz = register_size (gdbarch, reg);
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if (len <= regsz)
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regcache_raw_write_part (regcache, reg, 0, len, valbuf);
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else if (len <= 2 * regsz)
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{
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regcache_raw_write (regcache, reg, valbuf);
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gdb_assert (regsz == register_size (gdbarch, reg + 1));
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regcache_raw_write_part (regcache, reg+1, 0,
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len - regsz, (char *) valbuf + regsz);
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}
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else
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internal_error (__FILE__, __LINE__,
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"Cannot store return value %d bytes long.", len);
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}
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static struct frame_info *analyze_dummy_frame (CORE_ADDR, CORE_ADDR);
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static struct frame_info *
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analyze_dummy_frame (CORE_ADDR pc, CORE_ADDR frame)
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{
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struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
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struct frame_info *dummy
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= deprecated_frame_xmalloc_with_cleanup (SIZEOF_FRAME_SAVED_REGS,
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sizeof (struct frame_extra_info));
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deprecated_update_frame_pc_hack (dummy, pc);
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deprecated_update_frame_base_hack (dummy, frame);
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get_frame_extra_info (dummy)->status = 0;
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get_frame_extra_info (dummy)->stack_size = 0;
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mn10300_analyze_prologue (dummy, pc);
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do_cleanups (old_chain);
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return dummy;
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}
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/* Values for frame_info.status */
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#define MY_FRAME_IN_SP 0x1
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#define MY_FRAME_IN_FP 0x2
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#define NO_MORE_FRAMES 0x4
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/* Compute the alignment required by a type. */
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static int
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mn10300_type_align (struct type *type)
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{
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int i, align = 1;
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switch (TYPE_CODE (type))
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{
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case TYPE_CODE_INT:
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case TYPE_CODE_ENUM:
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case TYPE_CODE_SET:
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case TYPE_CODE_RANGE:
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case TYPE_CODE_CHAR:
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case TYPE_CODE_BOOL:
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case TYPE_CODE_FLT:
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case TYPE_CODE_PTR:
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case TYPE_CODE_REF:
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return TYPE_LENGTH (type);
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case TYPE_CODE_COMPLEX:
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return TYPE_LENGTH (type) / 2;
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case TYPE_CODE_STRUCT:
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case TYPE_CODE_UNION:
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for (i = 0; i < TYPE_NFIELDS (type); i++)
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{
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int falign = mn10300_type_align (TYPE_FIELD_TYPE (type, i));
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while (align < falign)
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align <<= 1;
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}
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return align;
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case TYPE_CODE_ARRAY:
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/* HACK! Structures containing arrays, even small ones, are not
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elligible for returning in registers. */
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return 256;
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case TYPE_CODE_TYPEDEF:
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return mn10300_type_align (check_typedef (type));
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default:
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internal_error (__FILE__, __LINE__, "bad switch");
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}
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}
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/* Should call_function allocate stack space for a struct return? */
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static int
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mn10300_use_struct_convention (struct type *type)
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{
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/* Structures bigger than a pair of words can't be returned in
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registers. */
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if (TYPE_LENGTH (type) > 8)
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return 1;
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switch (TYPE_CODE (type))
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{
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case TYPE_CODE_STRUCT:
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case TYPE_CODE_UNION:
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/* Structures with a single field are handled as the field
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itself. */
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if (TYPE_NFIELDS (type) == 1)
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return mn10300_use_struct_convention (TYPE_FIELD_TYPE (type, 0));
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/* Structures with word or double-word size are passed in memory, as
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long as they require at least word alignment. */
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if (mn10300_type_align (type) >= 4)
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return 0;
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return 1;
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/* Arrays are addressable, so they're never returned in
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registers. This condition can only hold when the array is
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the only field of a struct or union. */
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case TYPE_CODE_ARRAY:
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return 1;
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case TYPE_CODE_TYPEDEF:
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return mn10300_use_struct_convention (check_typedef (type));
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default:
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return 0;
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}
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}
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/* Determine, for architecture GDBARCH, how a return value of TYPE
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should be returned. If it is supposed to be returned in registers,
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and READBUF is non-zero, read the appropriate value from REGCACHE,
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and copy it into READBUF. If WRITEBUF is non-zero, write the value
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from WRITEBUF into REGCACHE. */
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static enum return_value_convention
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mn10300_return_value (struct gdbarch *gdbarch, struct type *type,
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struct regcache *regcache, void *readbuf,
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const void *writebuf)
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{
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if (mn10300_use_struct_convention (type))
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return RETURN_VALUE_STRUCT_CONVENTION;
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if (readbuf)
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mn10300_extract_return_value (gdbarch, type, regcache, readbuf);
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if (writebuf)
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mn10300_store_return_value (gdbarch, type, regcache, writebuf);
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return RETURN_VALUE_REGISTER_CONVENTION;
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}
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/* The breakpoint instruction must be the same size as the smallest
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instruction in the instruction set.
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The Matsushita mn10x00 processors have single byte instructions
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so we need a single byte breakpoint. Matsushita hasn't defined
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one, so we defined it ourselves. */
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const static unsigned char *
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mn10300_breakpoint_from_pc (CORE_ADDR *bp_addr, int *bp_size)
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{
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static char breakpoint[] =
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{0xff};
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*bp_size = 1;
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return breakpoint;
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}
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/* Fix fi->frame if it's bogus at this point. This is a helper
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function for mn10300_analyze_prologue. */
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static void
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fix_frame_pointer (struct frame_info *fi, int stack_size)
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{
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if (fi && get_next_frame (fi) == NULL)
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{
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if (get_frame_extra_info (fi)->status & MY_FRAME_IN_SP)
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deprecated_update_frame_base_hack (fi, read_sp () - stack_size);
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else if (get_frame_extra_info (fi)->status & MY_FRAME_IN_FP)
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deprecated_update_frame_base_hack (fi, read_register (A3_REGNUM));
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}
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}
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/* Set offsets of registers saved by movm instruction.
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This is a helper function for mn10300_analyze_prologue. */
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static void
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set_movm_offsets (struct frame_info *fi, int movm_args)
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{
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int offset = 0;
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if (fi == NULL || movm_args == 0)
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return;
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if (movm_args & movm_other_bit)
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{
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/* The `other' bit leaves a blank area of four bytes at the
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beginning of its block of saved registers, making it 32 bytes
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long in total. */
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deprecated_get_frame_saved_regs (fi)[LAR_REGNUM] = get_frame_base (fi) + offset + 4;
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deprecated_get_frame_saved_regs (fi)[LIR_REGNUM] = get_frame_base (fi) + offset + 8;
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deprecated_get_frame_saved_regs (fi)[MDR_REGNUM] = get_frame_base (fi) + offset + 12;
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deprecated_get_frame_saved_regs (fi)[A0_REGNUM + 1] = get_frame_base (fi) + offset + 16;
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deprecated_get_frame_saved_regs (fi)[A0_REGNUM] = get_frame_base (fi) + offset + 20;
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deprecated_get_frame_saved_regs (fi)[D0_REGNUM + 1] = get_frame_base (fi) + offset + 24;
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deprecated_get_frame_saved_regs (fi)[D0_REGNUM] = get_frame_base (fi) + offset + 28;
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offset += 32;
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}
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if (movm_args & movm_a3_bit)
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{
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deprecated_get_frame_saved_regs (fi)[A3_REGNUM] = get_frame_base (fi) + offset;
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offset += 4;
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}
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if (movm_args & movm_a2_bit)
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{
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deprecated_get_frame_saved_regs (fi)[A2_REGNUM] = get_frame_base (fi) + offset;
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offset += 4;
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}
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if (movm_args & movm_d3_bit)
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{
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deprecated_get_frame_saved_regs (fi)[D3_REGNUM] = get_frame_base (fi) + offset;
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offset += 4;
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}
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if (movm_args & movm_d2_bit)
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{
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deprecated_get_frame_saved_regs (fi)[D2_REGNUM] = get_frame_base (fi) + offset;
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offset += 4;
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}
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if (AM33_MODE)
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{
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if (movm_args & movm_exother_bit)
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{
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deprecated_get_frame_saved_regs (fi)[MCVF_REGNUM] = get_frame_base (fi) + offset;
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deprecated_get_frame_saved_regs (fi)[MCRL_REGNUM] = get_frame_base (fi) + offset + 4;
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deprecated_get_frame_saved_regs (fi)[MCRH_REGNUM] = get_frame_base (fi) + offset + 8;
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deprecated_get_frame_saved_regs (fi)[MDRQ_REGNUM] = get_frame_base (fi) + offset + 12;
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deprecated_get_frame_saved_regs (fi)[E0_REGNUM + 1] = get_frame_base (fi) + offset + 16;
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deprecated_get_frame_saved_regs (fi)[E0_REGNUM + 0] = get_frame_base (fi) + offset + 20;
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offset += 24;
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}
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if (movm_args & movm_exreg1_bit)
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{
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deprecated_get_frame_saved_regs (fi)[E0_REGNUM + 7] = get_frame_base (fi) + offset;
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deprecated_get_frame_saved_regs (fi)[E0_REGNUM + 6] = get_frame_base (fi) + offset + 4;
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deprecated_get_frame_saved_regs (fi)[E0_REGNUM + 5] = get_frame_base (fi) + offset + 8;
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deprecated_get_frame_saved_regs (fi)[E0_REGNUM + 4] = get_frame_base (fi) + offset + 12;
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offset += 16;
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}
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if (movm_args & movm_exreg0_bit)
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{
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deprecated_get_frame_saved_regs (fi)[E0_REGNUM + 3] = get_frame_base (fi) + offset;
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deprecated_get_frame_saved_regs (fi)[E0_REGNUM + 2] = get_frame_base (fi) + offset + 4;
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offset += 8;
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}
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}
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}
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/* The main purpose of this file is dealing with prologues to extract
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information about stack frames and saved registers.
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In gcc/config/mn13000/mn10300.c, the expand_prologue prologue
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function is pretty readable, and has a nice explanation of how the
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prologue is generated. The prologues generated by that code will
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have the following form (NOTE: the current code doesn't handle all
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this!):
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+ If this is an old-style varargs function, then its arguments
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need to be flushed back to the stack:
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mov d0,(4,sp)
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mov d1,(4,sp)
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+ If we use any of the callee-saved registers, save them now.
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movm [some callee-saved registers],(sp)
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+ If we have any floating-point registers to save:
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- Decrement the stack pointer to reserve space for the registers.
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If the function doesn't need a frame pointer, we may combine
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this with the adjustment that reserves space for the frame.
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add -SIZE, sp
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- Save the floating-point registers. We have two possible
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strategies:
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. Save them at fixed offset from the SP:
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fmov fsN,(OFFSETN,sp)
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fmov fsM,(OFFSETM,sp)
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...
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Note that, if OFFSETN happens to be zero, you'll get the
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different opcode: fmov fsN,(sp)
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. Or, set a0 to the start of the save area, and then use
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post-increment addressing to save the FP registers.
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mov sp, a0
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add SIZE, a0
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fmov fsN,(a0+)
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fmov fsM,(a0+)
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...
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|
|
|
+ If the function needs a frame pointer, we set it here.
|
|
|
|
mov sp, a3
|
|
|
|
+ Now we reserve space for the stack frame proper. This could be
|
|
merged into the `add -SIZE, sp' instruction for FP saves up
|
|
above, unless we needed to set the frame pointer in the previous
|
|
step, or the frame is so large that allocating the whole thing at
|
|
once would put the FP register save slots out of reach of the
|
|
addressing mode (128 bytes).
|
|
|
|
add -SIZE, sp
|
|
|
|
One day we might keep the stack pointer constant, that won't
|
|
change the code for prologues, but it will make the frame
|
|
pointerless case much more common. */
|
|
|
|
/* Analyze the prologue to determine where registers are saved,
|
|
the end of the prologue, etc etc. Return the end of the prologue
|
|
scanned.
|
|
|
|
We store into FI (if non-null) several tidbits of information:
|
|
|
|
* stack_size -- size of this stack frame. Note that if we stop in
|
|
certain parts of the prologue/epilogue we may claim the size of the
|
|
current frame is zero. This happens when the current frame has
|
|
not been allocated yet or has already been deallocated.
|
|
|
|
* fsr -- Addresses of registers saved in the stack by this frame.
|
|
|
|
* status -- A (relatively) generic status indicator. It's a bitmask
|
|
with the following bits:
|
|
|
|
MY_FRAME_IN_SP: The base of the current frame is actually in
|
|
the stack pointer. This can happen for frame pointerless
|
|
functions, or cases where we're stopped in the prologue/epilogue
|
|
itself. For these cases mn10300_analyze_prologue will need up
|
|
update fi->frame before returning or analyzing the register
|
|
save instructions.
|
|
|
|
MY_FRAME_IN_FP: The base of the current frame is in the
|
|
frame pointer register ($a3).
|
|
|
|
NO_MORE_FRAMES: Set this if the current frame is "start" or
|
|
if the first instruction looks like mov <imm>,sp. This tells
|
|
frame chain to not bother trying to unwind past this frame. */
|
|
|
|
static CORE_ADDR
|
|
mn10300_analyze_prologue (struct frame_info *fi, CORE_ADDR pc)
|
|
{
|
|
CORE_ADDR func_addr, func_end, addr, stop;
|
|
CORE_ADDR stack_size;
|
|
int imm_size;
|
|
unsigned char buf[4];
|
|
int status, movm_args = 0;
|
|
char *name;
|
|
|
|
/* Use the PC in the frame if it's provided to look up the
|
|
start of this function.
|
|
|
|
Note: kevinb/2003-07-16: We used to do the following here:
|
|
pc = (fi ? get_frame_pc (fi) : pc);
|
|
But this is (now) badly broken when called from analyze_dummy_frame().
|
|
*/
|
|
pc = (pc ? pc : get_frame_pc (fi));
|
|
|
|
/* Find the start of this function. */
|
|
status = find_pc_partial_function (pc, &name, &func_addr, &func_end);
|
|
|
|
/* Do nothing if we couldn't find the start of this function or if we're
|
|
stopped at the first instruction in the prologue. */
|
|
if (status == 0)
|
|
{
|
|
return pc;
|
|
}
|
|
|
|
/* If we're in start, then give up. */
|
|
if (strcmp (name, "start") == 0)
|
|
{
|
|
if (fi != NULL)
|
|
get_frame_extra_info (fi)->status = NO_MORE_FRAMES;
|
|
return pc;
|
|
}
|
|
|
|
/* At the start of a function our frame is in the stack pointer. */
|
|
if (fi)
|
|
get_frame_extra_info (fi)->status = MY_FRAME_IN_SP;
|
|
|
|
/* Get the next two bytes into buf, we need two because rets is a two
|
|
byte insn and the first isn't enough to uniquely identify it. */
|
|
status = deprecated_read_memory_nobpt (pc, buf, 2);
|
|
if (status != 0)
|
|
return pc;
|
|
|
|
#if 0
|
|
/* Note: kevinb/2003-07-16: We shouldn't be making these sorts of
|
|
changes to the frame in prologue examination code. */
|
|
/* If we're physically on an "rets" instruction, then our frame has
|
|
already been deallocated. Note this can also be true for retf
|
|
and ret if they specify a size of zero.
|
|
|
|
In this case fi->frame is bogus, we need to fix it. */
|
|
if (fi && buf[0] == 0xf0 && buf[1] == 0xfc)
|
|
{
|
|
if (get_next_frame (fi) == NULL)
|
|
deprecated_update_frame_base_hack (fi, read_sp ());
|
|
return get_frame_pc (fi);
|
|
}
|
|
|
|
/* Similarly if we're stopped on the first insn of a prologue as our
|
|
frame hasn't been allocated yet. */
|
|
if (fi && get_frame_pc (fi) == func_addr)
|
|
{
|
|
if (get_next_frame (fi) == NULL)
|
|
deprecated_update_frame_base_hack (fi, read_sp ());
|
|
return get_frame_pc (fi);
|
|
}
|
|
#endif
|
|
|
|
/* Figure out where to stop scanning. */
|
|
stop = fi ? pc : func_end;
|
|
|
|
/* Don't walk off the end of the function. */
|
|
stop = stop > func_end ? func_end : stop;
|
|
|
|
/* Start scanning on the first instruction of this function. */
|
|
addr = func_addr;
|
|
|
|
/* Suck in two bytes. */
|
|
if (addr + 2 >= stop
|
|
|| (status = deprecated_read_memory_nobpt (addr, buf, 2)) != 0)
|
|
{
|
|
fix_frame_pointer (fi, 0);
|
|
return addr;
|
|
}
|
|
|
|
/* First see if this insn sets the stack pointer from a register; if
|
|
so, it's probably the initialization of the stack pointer in _start,
|
|
so mark this as the bottom-most frame. */
|
|
if (buf[0] == 0xf2 && (buf[1] & 0xf3) == 0xf0)
|
|
{
|
|
if (fi)
|
|
get_frame_extra_info (fi)->status = NO_MORE_FRAMES;
|
|
return addr;
|
|
}
|
|
|
|
/* Now look for movm [regs],sp, which saves the callee saved registers.
|
|
|
|
At this time we don't know if fi->frame is valid, so we only note
|
|
that we encountered a movm instruction. Later, we'll set the entries
|
|
in fsr.regs as needed. */
|
|
if (buf[0] == 0xcf)
|
|
{
|
|
/* Extract the register list for the movm instruction. */
|
|
status = deprecated_read_memory_nobpt (addr + 1, buf, 1);
|
|
movm_args = *buf;
|
|
|
|
addr += 2;
|
|
|
|
/* Quit now if we're beyond the stop point. */
|
|
if (addr >= stop)
|
|
{
|
|
/* Fix fi->frame since it's bogus at this point. */
|
|
if (fi && get_next_frame (fi) == NULL)
|
|
deprecated_update_frame_base_hack (fi, read_sp ());
|
|
|
|
/* Note if/where callee saved registers were saved. */
|
|
set_movm_offsets (fi, movm_args);
|
|
return addr;
|
|
}
|
|
|
|
/* Get the next two bytes so the prologue scan can continue. */
|
|
status = deprecated_read_memory_nobpt (addr, buf, 2);
|
|
if (status != 0)
|
|
{
|
|
/* Fix fi->frame since it's bogus at this point. */
|
|
if (fi && get_next_frame (fi) == NULL)
|
|
deprecated_update_frame_base_hack (fi, read_sp ());
|
|
|
|
/* Note if/where callee saved registers were saved. */
|
|
set_movm_offsets (fi, movm_args);
|
|
return addr;
|
|
}
|
|
}
|
|
|
|
/* Now see if we set up a frame pointer via "mov sp,a3" */
|
|
if (buf[0] == 0x3f)
|
|
{
|
|
addr += 1;
|
|
|
|
/* The frame pointer is now valid. */
|
|
if (fi)
|
|
{
|
|
get_frame_extra_info (fi)->status |= MY_FRAME_IN_FP;
|
|
get_frame_extra_info (fi)->status &= ~MY_FRAME_IN_SP;
|
|
}
|
|
|
|
/* Quit now if we're beyond the stop point. */
|
|
if (addr >= stop)
|
|
{
|
|
/* Fix fi->frame if it's bogus at this point. */
|
|
fix_frame_pointer (fi, 0);
|
|
|
|
/* Note if/where callee saved registers were saved. */
|
|
set_movm_offsets (fi, movm_args);
|
|
return addr;
|
|
}
|
|
|
|
/* Get two more bytes so scanning can continue. */
|
|
status = deprecated_read_memory_nobpt (addr, buf, 2);
|
|
if (status != 0)
|
|
{
|
|
/* Fix fi->frame if it's bogus at this point. */
|
|
fix_frame_pointer (fi, 0);
|
|
|
|
/* Note if/where callee saved registers were saved. */
|
|
set_movm_offsets (fi, movm_args);
|
|
return addr;
|
|
}
|
|
}
|
|
|
|
/* Next we should allocate the local frame. No more prologue insns
|
|
are found after allocating the local frame.
|
|
|
|
Search for add imm8,sp (0xf8feXX)
|
|
or add imm16,sp (0xfafeXXXX)
|
|
or add imm32,sp (0xfcfeXXXXXXXX).
|
|
|
|
If none of the above was found, then this prologue has no
|
|
additional stack. */
|
|
|
|
status = deprecated_read_memory_nobpt (addr, buf, 2);
|
|
if (status != 0)
|
|
{
|
|
/* Fix fi->frame if it's bogus at this point. */
|
|
fix_frame_pointer (fi, 0);
|
|
|
|
/* Note if/where callee saved registers were saved. */
|
|
set_movm_offsets (fi, movm_args);
|
|
return addr;
|
|
}
|
|
|
|
imm_size = 0;
|
|
if (buf[0] == 0xf8 && buf[1] == 0xfe)
|
|
imm_size = 1;
|
|
else if (buf[0] == 0xfa && buf[1] == 0xfe)
|
|
imm_size = 2;
|
|
else if (buf[0] == 0xfc && buf[1] == 0xfe)
|
|
imm_size = 4;
|
|
|
|
if (imm_size != 0)
|
|
{
|
|
/* Suck in imm_size more bytes, they'll hold the size of the
|
|
current frame. */
|
|
status = deprecated_read_memory_nobpt (addr + 2, buf, imm_size);
|
|
if (status != 0)
|
|
{
|
|
/* Fix fi->frame if it's bogus at this point. */
|
|
fix_frame_pointer (fi, 0);
|
|
|
|
/* Note if/where callee saved registers were saved. */
|
|
set_movm_offsets (fi, movm_args);
|
|
return addr;
|
|
}
|
|
|
|
/* Note the size of the stack in the frame info structure. */
|
|
stack_size = extract_signed_integer (buf, imm_size);
|
|
if (fi)
|
|
get_frame_extra_info (fi)->stack_size = stack_size;
|
|
|
|
/* We just consumed 2 + imm_size bytes. */
|
|
addr += 2 + imm_size;
|
|
|
|
/* No more prologue insns follow, so begin preparation to return. */
|
|
/* Fix fi->frame if it's bogus at this point. */
|
|
fix_frame_pointer (fi, stack_size);
|
|
|
|
/* Note if/where callee saved registers were saved. */
|
|
set_movm_offsets (fi, movm_args);
|
|
return addr;
|
|
}
|
|
|
|
/* We never found an insn which allocates local stack space, regardless
|
|
this is the end of the prologue. */
|
|
/* Fix fi->frame if it's bogus at this point. */
|
|
fix_frame_pointer (fi, 0);
|
|
|
|
/* Note if/where callee saved registers were saved. */
|
|
set_movm_offsets (fi, movm_args);
|
|
return addr;
|
|
}
|
|
|
|
|
|
/* Function: saved_regs_size
|
|
Return the size in bytes of the register save area, based on the
|
|
saved_regs array in FI. */
|
|
static int
|
|
saved_regs_size (struct frame_info *fi)
|
|
{
|
|
int adjust = 0;
|
|
int i;
|
|
|
|
/* Reserve four bytes for every register saved. */
|
|
for (i = 0; i < NUM_REGS; i++)
|
|
if (deprecated_get_frame_saved_regs (fi)[i])
|
|
adjust += 4;
|
|
|
|
/* If we saved LIR, then it's most likely we used a `movm'
|
|
instruction with the `other' bit set, in which case the SP is
|
|
decremented by an extra four bytes, "to simplify calculation
|
|
of the transfer area", according to the processor manual. */
|
|
if (deprecated_get_frame_saved_regs (fi)[LIR_REGNUM])
|
|
adjust += 4;
|
|
|
|
return adjust;
|
|
}
|
|
|
|
|
|
/* Function: frame_chain
|
|
Figure out and return the caller's frame pointer given current
|
|
frame_info struct.
|
|
|
|
We don't handle dummy frames yet but we would probably just return the
|
|
stack pointer that was in use at the time the function call was made? */
|
|
|
|
static CORE_ADDR
|
|
mn10300_frame_chain (struct frame_info *fi)
|
|
{
|
|
struct frame_info *dummy;
|
|
/* Walk through the prologue to determine the stack size,
|
|
location of saved registers, end of the prologue, etc. */
|
|
if (get_frame_extra_info (fi)->status == 0)
|
|
mn10300_analyze_prologue (fi, (CORE_ADDR) 0);
|
|
|
|
/* Quit now if mn10300_analyze_prologue set NO_MORE_FRAMES. */
|
|
if (get_frame_extra_info (fi)->status & NO_MORE_FRAMES)
|
|
return 0;
|
|
|
|
/* Now that we've analyzed our prologue, determine the frame
|
|
pointer for our caller.
|
|
|
|
If our caller has a frame pointer, then we need to
|
|
find the entry value of $a3 to our function.
|
|
|
|
If fsr.regs[A3_REGNUM] is nonzero, then it's at the memory
|
|
location pointed to by fsr.regs[A3_REGNUM].
|
|
|
|
Else it's still in $a3.
|
|
|
|
If our caller does not have a frame pointer, then his
|
|
frame base is fi->frame + -caller's stack size. */
|
|
|
|
/* The easiest way to get that info is to analyze our caller's frame.
|
|
So we set up a dummy frame and call mn10300_analyze_prologue to
|
|
find stuff for us. */
|
|
dummy = analyze_dummy_frame (DEPRECATED_FRAME_SAVED_PC (fi), get_frame_base (fi));
|
|
|
|
if (get_frame_extra_info (dummy)->status & MY_FRAME_IN_FP)
|
|
{
|
|
/* Our caller has a frame pointer. So find the frame in $a3 or
|
|
in the stack. */
|
|
if (deprecated_get_frame_saved_regs (fi)[A3_REGNUM])
|
|
return (read_memory_integer (deprecated_get_frame_saved_regs (fi)[A3_REGNUM],
|
|
DEPRECATED_REGISTER_SIZE));
|
|
else
|
|
return read_register (A3_REGNUM);
|
|
}
|
|
else
|
|
{
|
|
int adjust = saved_regs_size (fi);
|
|
|
|
/* Our caller does not have a frame pointer. So his frame starts
|
|
at the base of our frame (fi->frame) + register save space
|
|
+ <his size>. */
|
|
return get_frame_base (fi) + adjust + -get_frame_extra_info (dummy)->stack_size;
|
|
}
|
|
}
|
|
|
|
/* Function: skip_prologue
|
|
Return the address of the first inst past the prologue of the function. */
|
|
|
|
static CORE_ADDR
|
|
mn10300_skip_prologue (CORE_ADDR pc)
|
|
{
|
|
/* We used to check the debug symbols, but that can lose if
|
|
we have a null prologue. */
|
|
return mn10300_analyze_prologue (NULL, pc);
|
|
}
|
|
|
|
/* generic_pop_current_frame calls this function if the current
|
|
frame isn't a dummy frame. */
|
|
static void
|
|
mn10300_pop_frame_regular (struct frame_info *frame)
|
|
{
|
|
int regnum;
|
|
|
|
write_register (PC_REGNUM, DEPRECATED_FRAME_SAVED_PC (frame));
|
|
|
|
/* Restore any saved registers. */
|
|
for (regnum = 0; regnum < NUM_REGS; regnum++)
|
|
if (deprecated_get_frame_saved_regs (frame)[regnum] != 0)
|
|
{
|
|
ULONGEST value;
|
|
|
|
value = read_memory_unsigned_integer (deprecated_get_frame_saved_regs (frame)[regnum],
|
|
register_size (current_gdbarch, regnum));
|
|
write_register (regnum, value);
|
|
}
|
|
|
|
/* Actually cut back the stack, adjusted by the saved registers like
|
|
ret would. */
|
|
write_register (SP_REGNUM, get_frame_base (frame) + saved_regs_size (frame));
|
|
}
|
|
|
|
/* Function: pop_frame
|
|
This routine gets called when either the user uses the `return'
|
|
command, or the call dummy breakpoint gets hit. */
|
|
static void
|
|
mn10300_pop_frame (void)
|
|
{
|
|
struct frame_info *frame = get_current_frame ();
|
|
if (get_frame_type (frame) == DUMMY_FRAME)
|
|
/* NOTE: cagney/2002-22-23: Does this ever occure? Surely a dummy
|
|
frame will have already been poped by the "infrun.c" code. */
|
|
deprecated_pop_dummy_frame ();
|
|
else
|
|
mn10300_pop_frame_regular (frame);
|
|
/* Throw away any cached frame information. */
|
|
flush_cached_frames ();
|
|
}
|
|
|
|
/* Function: push_arguments
|
|
Setup arguments for a call to the target. Arguments go in
|
|
order on the stack. */
|
|
|
|
static CORE_ADDR
|
|
mn10300_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
|
|
int struct_return, CORE_ADDR struct_addr)
|
|
{
|
|
int argnum = 0;
|
|
int len = 0;
|
|
int stack_offset = 0;
|
|
int regsused = struct_return ? 1 : 0;
|
|
|
|
/* This should be a nop, but align the stack just in case something
|
|
went wrong. Stacks are four byte aligned on the mn10300. */
|
|
sp &= ~3;
|
|
|
|
/* Now make space on the stack for the args.
|
|
|
|
XXX This doesn't appear to handle pass-by-invisible reference
|
|
arguments. */
|
|
for (argnum = 0; argnum < nargs; argnum++)
|
|
{
|
|
int arg_length = (TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 3) & ~3;
|
|
|
|
while (regsused < 2 && arg_length > 0)
|
|
{
|
|
regsused++;
|
|
arg_length -= 4;
|
|
}
|
|
len += arg_length;
|
|
}
|
|
|
|
/* Allocate stack space. */
|
|
sp -= len;
|
|
|
|
regsused = struct_return ? 1 : 0;
|
|
/* Push all arguments onto the stack. */
|
|
for (argnum = 0; argnum < nargs; argnum++)
|
|
{
|
|
int len;
|
|
char *val;
|
|
|
|
/* XXX Check this. What about UNIONS? */
|
|
if (TYPE_CODE (VALUE_TYPE (*args)) == TYPE_CODE_STRUCT
|
|
&& TYPE_LENGTH (VALUE_TYPE (*args)) > 8)
|
|
{
|
|
/* XXX Wrong, we want a pointer to this argument. */
|
|
len = TYPE_LENGTH (VALUE_TYPE (*args));
|
|
val = (char *) VALUE_CONTENTS (*args);
|
|
}
|
|
else
|
|
{
|
|
len = TYPE_LENGTH (VALUE_TYPE (*args));
|
|
val = (char *) VALUE_CONTENTS (*args);
|
|
}
|
|
|
|
while (regsused < 2 && len > 0)
|
|
{
|
|
write_register (regsused, extract_unsigned_integer (val, 4));
|
|
val += 4;
|
|
len -= 4;
|
|
regsused++;
|
|
}
|
|
|
|
while (len > 0)
|
|
{
|
|
write_memory (sp + stack_offset, val, 4);
|
|
len -= 4;
|
|
val += 4;
|
|
stack_offset += 4;
|
|
}
|
|
|
|
args++;
|
|
}
|
|
|
|
/* Make space for the flushback area. */
|
|
sp -= 8;
|
|
return sp;
|
|
}
|
|
|
|
/* Function: push_return_address (pc)
|
|
Set up the return address for the inferior function call.
|
|
Needed for targets where we don't actually execute a JSR/BSR instruction */
|
|
|
|
static CORE_ADDR
|
|
mn10300_push_return_address (CORE_ADDR pc, CORE_ADDR sp)
|
|
{
|
|
unsigned char buf[4];
|
|
|
|
store_unsigned_integer (buf, 4, entry_point_address ());
|
|
write_memory (sp - 4, buf, 4);
|
|
return sp - 4;
|
|
}
|
|
|
|
/* Function: store_struct_return (addr,sp)
|
|
Store the structure value return address for an inferior function
|
|
call. */
|
|
|
|
static void
|
|
mn10300_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
|
|
{
|
|
/* The structure return address is passed as the first argument. */
|
|
write_register (0, addr);
|
|
}
|
|
|
|
/* Function: frame_saved_pc
|
|
Find the caller of this frame. We do this by seeing if RP_REGNUM
|
|
is saved in the stack anywhere, otherwise we get it from the
|
|
registers. If the inner frame is a dummy frame, return its PC
|
|
instead of RP, because that's where "caller" of the dummy-frame
|
|
will be found. */
|
|
|
|
static CORE_ADDR
|
|
mn10300_frame_saved_pc (struct frame_info *fi)
|
|
{
|
|
int adjust = saved_regs_size (fi);
|
|
|
|
return (read_memory_integer (get_frame_base (fi) + adjust,
|
|
DEPRECATED_REGISTER_SIZE));
|
|
}
|
|
|
|
/* Function: mn10300_init_extra_frame_info
|
|
Setup the frame's frame pointer, pc, and frame addresses for saved
|
|
registers. Most of the work is done in mn10300_analyze_prologue().
|
|
|
|
Note that when we are called for the last frame (currently active frame),
|
|
that get_frame_pc (fi) and fi->frame will already be setup. However, fi->frame will
|
|
be valid only if this routine uses FP. For previous frames, fi-frame will
|
|
always be correct. mn10300_analyze_prologue will fix fi->frame if
|
|
it's not valid.
|
|
|
|
We can be called with the PC in the call dummy under two
|
|
circumstances. First, during normal backtracing, second, while
|
|
figuring out the frame pointer just prior to calling the target
|
|
function (see call_function_by_hand). */
|
|
|
|
static void
|
|
mn10300_init_extra_frame_info (int fromleaf, struct frame_info *fi)
|
|
{
|
|
if (get_next_frame (fi))
|
|
deprecated_update_frame_pc_hack (fi, DEPRECATED_FRAME_SAVED_PC (get_next_frame (fi)));
|
|
|
|
frame_saved_regs_zalloc (fi);
|
|
frame_extra_info_zalloc (fi, sizeof (struct frame_extra_info));
|
|
|
|
get_frame_extra_info (fi)->status = 0;
|
|
get_frame_extra_info (fi)->stack_size = 0;
|
|
|
|
mn10300_analyze_prologue (fi, 0);
|
|
}
|
|
|
|
|
|
/* This function's job is handled by init_extra_frame_info. */
|
|
static void
|
|
mn10300_frame_init_saved_regs (struct frame_info *frame)
|
|
{
|
|
}
|
|
|
|
|
|
/* Function: mn10300_virtual_frame_pointer
|
|
Return the register that the function uses for a frame pointer,
|
|
plus any necessary offset to be applied to the register before
|
|
any frame pointer offsets. */
|
|
|
|
static void
|
|
mn10300_virtual_frame_pointer (CORE_ADDR pc,
|
|
int *reg,
|
|
LONGEST *offset)
|
|
{
|
|
struct frame_info *dummy = analyze_dummy_frame (pc, 0);
|
|
/* Set up a dummy frame_info, Analyze the prolog and fill in the
|
|
extra info. */
|
|
/* Results will tell us which type of frame it uses. */
|
|
if (get_frame_extra_info (dummy)->status & MY_FRAME_IN_SP)
|
|
{
|
|
*reg = SP_REGNUM;
|
|
*offset = -(get_frame_extra_info (dummy)->stack_size);
|
|
}
|
|
else
|
|
{
|
|
*reg = A3_REGNUM;
|
|
*offset = 0;
|
|
}
|
|
}
|
|
|
|
static int
|
|
mn10300_reg_struct_has_addr (int gcc_p, struct type *type)
|
|
{
|
|
return (TYPE_LENGTH (type) > 8);
|
|
}
|
|
|
|
static struct type *
|
|
mn10300_register_virtual_type (int reg)
|
|
{
|
|
return builtin_type_int;
|
|
}
|
|
|
|
static int
|
|
mn10300_register_byte (int reg)
|
|
{
|
|
return (reg * 4);
|
|
}
|
|
|
|
static int
|
|
mn10300_register_virtual_size (int reg)
|
|
{
|
|
return 4;
|
|
}
|
|
|
|
static int
|
|
mn10300_register_raw_size (int reg)
|
|
{
|
|
return 4;
|
|
}
|
|
|
|
/* If DWARF2 is a register number appearing in Dwarf2 debug info, then
|
|
mn10300_dwarf2_reg_to_regnum (DWARF2) is the corresponding GDB
|
|
register number. Why don't Dwarf2 and GDB use the same numbering?
|
|
Who knows? But since people have object files lying around with
|
|
the existing Dwarf2 numbering, and other people have written stubs
|
|
to work with the existing GDB, neither of them can change. So we
|
|
just have to cope. */
|
|
static int
|
|
mn10300_dwarf2_reg_to_regnum (int dwarf2)
|
|
{
|
|
/* This table is supposed to be shaped like the REGISTER_NAMES
|
|
initializer in gcc/config/mn10300/mn10300.h. Registers which
|
|
appear in GCC's numbering, but have no counterpart in GDB's
|
|
world, are marked with a -1. */
|
|
static int dwarf2_to_gdb[] = {
|
|
0, 1, 2, 3, 4, 5, 6, 7, -1, 8,
|
|
15, 16, 17, 18, 19, 20, 21, 22
|
|
};
|
|
int gdb;
|
|
|
|
if (dwarf2 < 0
|
|
|| dwarf2 >= (sizeof (dwarf2_to_gdb) / sizeof (dwarf2_to_gdb[0]))
|
|
|| dwarf2_to_gdb[dwarf2] == -1)
|
|
internal_error (__FILE__, __LINE__,
|
|
"bogus register number in debug info: %d", dwarf2);
|
|
|
|
return dwarf2_to_gdb[dwarf2];
|
|
}
|
|
|
|
static void
|
|
mn10300_print_register (const char *name, int regnum, int reg_width)
|
|
{
|
|
char raw_buffer[MAX_REGISTER_SIZE];
|
|
|
|
if (reg_width)
|
|
printf_filtered ("%*s: ", reg_width, name);
|
|
else
|
|
printf_filtered ("%s: ", name);
|
|
|
|
/* Get the data */
|
|
if (!frame_register_read (deprecated_selected_frame, regnum, raw_buffer))
|
|
{
|
|
printf_filtered ("[invalid]");
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
int byte;
|
|
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
|
|
{
|
|
for (byte = register_size (current_gdbarch, regnum) - DEPRECATED_REGISTER_VIRTUAL_SIZE (regnum);
|
|
byte < register_size (current_gdbarch, regnum);
|
|
byte++)
|
|
printf_filtered ("%02x", (unsigned char) raw_buffer[byte]);
|
|
}
|
|
else
|
|
{
|
|
for (byte = DEPRECATED_REGISTER_VIRTUAL_SIZE (regnum) - 1;
|
|
byte >= 0;
|
|
byte--)
|
|
printf_filtered ("%02x", (unsigned char) raw_buffer[byte]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
mn10300_do_registers_info (int regnum, int fpregs)
|
|
{
|
|
if (regnum >= 0)
|
|
{
|
|
const char *name = REGISTER_NAME (regnum);
|
|
if (name == NULL || name[0] == '\0')
|
|
error ("Not a valid register for the current processor type");
|
|
mn10300_print_register (name, regnum, 0);
|
|
printf_filtered ("\n");
|
|
}
|
|
else
|
|
{
|
|
/* print registers in an array 4x8 */
|
|
int r;
|
|
int reg;
|
|
const int nr_in_row = 4;
|
|
const int reg_width = 4;
|
|
for (r = 0; r < NUM_REGS; r += nr_in_row)
|
|
{
|
|
int c;
|
|
int printing = 0;
|
|
int padding = 0;
|
|
for (c = r; c < r + nr_in_row; c++)
|
|
{
|
|
const char *name = REGISTER_NAME (c);
|
|
if (name != NULL && *name != '\0')
|
|
{
|
|
printing = 1;
|
|
while (padding > 0)
|
|
{
|
|
printf_filtered (" ");
|
|
padding--;
|
|
}
|
|
mn10300_print_register (name, c, reg_width);
|
|
printf_filtered (" ");
|
|
}
|
|
else
|
|
{
|
|
padding += (reg_width + 2 + 8 + 1);
|
|
}
|
|
}
|
|
if (printing)
|
|
printf_filtered ("\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
static CORE_ADDR
|
|
mn10300_read_fp (void)
|
|
{
|
|
/* That's right, we're using the stack pointer as our frame pointer. */
|
|
gdb_assert (SP_REGNUM >= 0);
|
|
return read_register (SP_REGNUM);
|
|
}
|
|
|
|
/* Dump out the mn10300 speciic architecture information. */
|
|
|
|
static void
|
|
mn10300_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
|
|
fprintf_unfiltered (file, "mn10300_dump_tdep: am33_mode = %d\n",
|
|
tdep->am33_mode);
|
|
}
|
|
|
|
static struct gdbarch *
|
|
mn10300_gdbarch_init (struct gdbarch_info info,
|
|
struct gdbarch_list *arches)
|
|
{
|
|
struct gdbarch *gdbarch;
|
|
struct gdbarch_tdep *tdep = NULL;
|
|
int am33_mode;
|
|
gdbarch_register_name_ftype *register_name;
|
|
int mach;
|
|
int num_regs;
|
|
|
|
arches = gdbarch_list_lookup_by_info (arches, &info);
|
|
if (arches != NULL)
|
|
return arches->gdbarch;
|
|
tdep = xmalloc (sizeof (struct gdbarch_tdep));
|
|
gdbarch = gdbarch_alloc (&info, tdep);
|
|
|
|
if (info.bfd_arch_info != NULL
|
|
&& info.bfd_arch_info->arch == bfd_arch_mn10300)
|
|
mach = info.bfd_arch_info->mach;
|
|
else
|
|
mach = 0;
|
|
switch (mach)
|
|
{
|
|
case 0:
|
|
case bfd_mach_mn10300:
|
|
am33_mode = 0;
|
|
register_name = mn10300_generic_register_name;
|
|
num_regs = 32;
|
|
break;
|
|
case bfd_mach_am33:
|
|
am33_mode = 1;
|
|
register_name = am33_register_name;
|
|
num_regs = 32;
|
|
break;
|
|
default:
|
|
internal_error (__FILE__, __LINE__,
|
|
"mn10300_gdbarch_init: Unknown mn10300 variant");
|
|
return NULL; /* keep GCC happy. */
|
|
}
|
|
|
|
/* Registers. */
|
|
set_gdbarch_num_regs (gdbarch, num_regs);
|
|
set_gdbarch_register_name (gdbarch, register_name);
|
|
set_gdbarch_deprecated_register_size (gdbarch, 4);
|
|
set_gdbarch_deprecated_register_raw_size (gdbarch, mn10300_register_raw_size);
|
|
set_gdbarch_deprecated_register_byte (gdbarch, mn10300_register_byte);
|
|
set_gdbarch_deprecated_register_virtual_size (gdbarch, mn10300_register_virtual_size);
|
|
set_gdbarch_deprecated_register_virtual_type (gdbarch, mn10300_register_virtual_type);
|
|
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, mn10300_dwarf2_reg_to_regnum);
|
|
set_gdbarch_deprecated_do_registers_info (gdbarch, mn10300_do_registers_info);
|
|
set_gdbarch_sp_regnum (gdbarch, 8);
|
|
set_gdbarch_pc_regnum (gdbarch, 9);
|
|
set_gdbarch_deprecated_fp_regnum (gdbarch, 31);
|
|
set_gdbarch_virtual_frame_pointer (gdbarch, mn10300_virtual_frame_pointer);
|
|
|
|
/* Breakpoints. */
|
|
set_gdbarch_breakpoint_from_pc (gdbarch, mn10300_breakpoint_from_pc);
|
|
|
|
/* Stack unwinding. */
|
|
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
|
|
set_gdbarch_deprecated_saved_pc_after_call (gdbarch, mn10300_saved_pc_after_call);
|
|
set_gdbarch_deprecated_init_extra_frame_info (gdbarch, mn10300_init_extra_frame_info);
|
|
set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, mn10300_frame_init_saved_regs);
|
|
set_gdbarch_deprecated_frame_chain (gdbarch, mn10300_frame_chain);
|
|
set_gdbarch_deprecated_frame_saved_pc (gdbarch, mn10300_frame_saved_pc);
|
|
set_gdbarch_return_value (gdbarch, mn10300_return_value);
|
|
set_gdbarch_deprecated_store_struct_return (gdbarch, mn10300_store_struct_return);
|
|
set_gdbarch_deprecated_pop_frame (gdbarch, mn10300_pop_frame);
|
|
set_gdbarch_skip_prologue (gdbarch, mn10300_skip_prologue);
|
|
/* That's right, we're using the stack pointer as our frame pointer. */
|
|
set_gdbarch_deprecated_target_read_fp (gdbarch, mn10300_read_fp);
|
|
|
|
/* Calling functions in the inferior from GDB. */
|
|
set_gdbarch_deprecated_push_arguments (gdbarch, mn10300_push_arguments);
|
|
set_gdbarch_deprecated_reg_struct_has_addr
|
|
(gdbarch, mn10300_reg_struct_has_addr);
|
|
set_gdbarch_deprecated_push_return_address (gdbarch, mn10300_push_return_address);
|
|
|
|
tdep->am33_mode = am33_mode;
|
|
|
|
/* Should be using push_dummy_call. */
|
|
set_gdbarch_deprecated_dummy_write_sp (gdbarch, deprecated_write_sp);
|
|
|
|
set_gdbarch_print_insn (gdbarch, print_insn_mn10300);
|
|
|
|
return gdbarch;
|
|
}
|
|
|
|
void
|
|
_initialize_mn10300_tdep (void)
|
|
{
|
|
/* printf("_initialize_mn10300_tdep\n"); */
|
|
gdbarch_register (bfd_arch_mn10300, mn10300_gdbarch_init, mn10300_dump_tdep);
|
|
}
|