cf1f553f85
Delete. (am33_linux_init_osabi): Register svr4_ilp32_fetch_link_map_offsets instead.
489 lines
15 KiB
C
489 lines
15 KiB
C
/* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger.
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Copyright 2003, 2004, 2005
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Free 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 "gdbcore.h"
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#include "gdb_string.h"
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#include "regcache.h"
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#include "mn10300-tdep.h"
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#include "gdb_assert.h"
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#include "bfd.h"
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#include "elf-bfd.h"
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#include "osabi.h"
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#include "regset.h"
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#include "solib-svr4.h"
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#include <stdlib.h>
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/* Transliterated from <asm-mn10300/elf.h>... */
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#define MN10300_ELF_NGREG 28
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#define MN10300_ELF_NFPREG 32
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typedef gdb_byte mn10300_elf_greg_t[4];
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typedef mn10300_elf_greg_t mn10300_elf_gregset_t[MN10300_ELF_NGREG];
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typedef gdb_byte mn10300_elf_fpreg_t[4];
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typedef struct
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{
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mn10300_elf_fpreg_t fpregs[MN10300_ELF_NFPREG];
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gdb_byte fpcr[4];
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} mn10300_elf_fpregset_t;
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/* elf_gregset_t register indices stolen from include/asm-mn10300/ptrace.h. */
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#define MN10300_ELF_GREGSET_T_REG_INDEX_A3 0
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#define MN10300_ELF_GREGSET_T_REG_INDEX_A2 1
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#define MN10300_ELF_GREGSET_T_REG_INDEX_D3 2
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#define MN10300_ELF_GREGSET_T_REG_INDEX_D2 3
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#define MN10300_ELF_GREGSET_T_REG_INDEX_MCVF 4
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#define MN10300_ELF_GREGSET_T_REG_INDEX_MCRL 5
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#define MN10300_ELF_GREGSET_T_REG_INDEX_MCRH 6
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#define MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ 7
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#define MN10300_ELF_GREGSET_T_REG_INDEX_E1 8
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#define MN10300_ELF_GREGSET_T_REG_INDEX_E0 9
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#define MN10300_ELF_GREGSET_T_REG_INDEX_E7 10
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#define MN10300_ELF_GREGSET_T_REG_INDEX_E6 11
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#define MN10300_ELF_GREGSET_T_REG_INDEX_E5 12
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#define MN10300_ELF_GREGSET_T_REG_INDEX_E4 13
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#define MN10300_ELF_GREGSET_T_REG_INDEX_E3 14
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#define MN10300_ELF_GREGSET_T_REG_INDEX_E2 15
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#define MN10300_ELF_GREGSET_T_REG_INDEX_SP 16
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#define MN10300_ELF_GREGSET_T_REG_INDEX_LAR 17
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#define MN10300_ELF_GREGSET_T_REG_INDEX_LIR 18
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#define MN10300_ELF_GREGSET_T_REG_INDEX_MDR 19
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#define MN10300_ELF_GREGSET_T_REG_INDEX_A1 20
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#define MN10300_ELF_GREGSET_T_REG_INDEX_A0 21
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#define MN10300_ELF_GREGSET_T_REG_INDEX_D1 22
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#define MN10300_ELF_GREGSET_T_REG_INDEX_D0 23
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#define MN10300_ELF_GREGSET_T_REG_INDEX_ORIG_D0 24
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#define MN10300_ELF_GREGSET_T_REG_INDEX_EPSW 25
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#define MN10300_ELF_GREGSET_T_REG_INDEX_PC 26
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/* New gdbarch API for corefile registers.
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Given a section name and size, create a struct reg object
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with a supply_register and a collect_register method. */
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/* Copy register value of REGNUM from regset to regcache.
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If REGNUM is -1, do this for all gp registers in regset. */
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static void
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am33_supply_gregset_method (const struct regset *regset,
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struct regcache *regcache,
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int regnum, const void *gregs, size_t len)
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{
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char zerobuf[MAX_REGISTER_SIZE];
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const mn10300_elf_greg_t *regp = (const mn10300_elf_greg_t *) gregs;
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int i;
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gdb_assert (len == sizeof (mn10300_elf_gregset_t));
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switch (regnum) {
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case E_D0_REGNUM:
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regcache_raw_supply (regcache, E_D0_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0));
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break;
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case E_D1_REGNUM:
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regcache_raw_supply (regcache, E_D1_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1));
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break;
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case E_D2_REGNUM:
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regcache_raw_supply (regcache, E_D2_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2));
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break;
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case E_D3_REGNUM:
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regcache_raw_supply (regcache, E_D3_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3));
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break;
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case E_A0_REGNUM:
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regcache_raw_supply (regcache, E_A0_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0));
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break;
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case E_A1_REGNUM:
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regcache_raw_supply (regcache, E_A1_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1));
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break;
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case E_A2_REGNUM:
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regcache_raw_supply (regcache, E_A2_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2));
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break;
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case E_A3_REGNUM:
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regcache_raw_supply (regcache, E_A3_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3));
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break;
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case E_SP_REGNUM:
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regcache_raw_supply (regcache, E_SP_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP));
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break;
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case E_PC_REGNUM:
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regcache_raw_supply (regcache, E_PC_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC));
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break;
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case E_MDR_REGNUM:
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regcache_raw_supply (regcache, E_MDR_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR));
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break;
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case E_PSW_REGNUM:
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regcache_raw_supply (regcache, E_PSW_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW));
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break;
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case E_LIR_REGNUM:
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regcache_raw_supply (regcache, E_LIR_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR));
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break;
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case E_LAR_REGNUM:
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regcache_raw_supply (regcache, E_LAR_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR));
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break;
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case E_MDRQ_REGNUM:
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regcache_raw_supply (regcache, E_MDRQ_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ));
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break;
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case E_E0_REGNUM:
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regcache_raw_supply (regcache, E_E0_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0));
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break;
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case E_E1_REGNUM:
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regcache_raw_supply (regcache, E_E1_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1));
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break;
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case E_E2_REGNUM:
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regcache_raw_supply (regcache, E_E2_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2));
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break;
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case E_E3_REGNUM:
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regcache_raw_supply (regcache, E_E3_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3));
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break;
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case E_E4_REGNUM:
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regcache_raw_supply (regcache, E_E4_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4));
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break;
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case E_E5_REGNUM:
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regcache_raw_supply (regcache, E_E5_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5));
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break;
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case E_E6_REGNUM:
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regcache_raw_supply (regcache, E_E6_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6));
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break;
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case E_E7_REGNUM:
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regcache_raw_supply (regcache, E_E7_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7));
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break;
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/* ssp, msp, and usp are inaccessible. */
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case E_E8_REGNUM:
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memset (zerobuf, 0, MAX_REGISTER_SIZE);
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regcache_raw_supply (regcache, E_E8_REGNUM, zerobuf);
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break;
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case E_E9_REGNUM:
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memset (zerobuf, 0, MAX_REGISTER_SIZE);
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regcache_raw_supply (regcache, E_E9_REGNUM, zerobuf);
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break;
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case E_E10_REGNUM:
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memset (zerobuf, 0, MAX_REGISTER_SIZE);
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regcache_raw_supply (regcache, E_E10_REGNUM, zerobuf);
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break;
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case E_MCRH_REGNUM:
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regcache_raw_supply (regcache, E_MCRH_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH));
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break;
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case E_MCRL_REGNUM:
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regcache_raw_supply (regcache, E_MCRL_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL));
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break;
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case E_MCVF_REGNUM:
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regcache_raw_supply (regcache, E_MCVF_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF));
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break;
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case E_FPCR_REGNUM:
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/* FPCR is numbered among the GP regs, but handled as an FP reg.
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Do nothing. */
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break;
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case E_FPCR_REGNUM + 1:
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/* The two unused registers beyond fpcr are inaccessible. */
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memset (zerobuf, 0, MAX_REGISTER_SIZE);
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regcache_raw_supply (regcache, E_FPCR_REGNUM + 1, zerobuf);
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break;
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case E_FPCR_REGNUM + 2:
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memset (zerobuf, 0, MAX_REGISTER_SIZE);
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regcache_raw_supply (regcache, E_FPCR_REGNUM + 2, zerobuf);
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break;
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default: /* An error, obviously, but should we error out? */
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break;
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case -1:
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for (i = 0; i < MN10300_ELF_NGREG; i++)
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am33_supply_gregset_method (regset, regcache, i, gregs, len);
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break;
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}
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return;
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}
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/* Copy fp register value of REGNUM from regset to regcache.
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If REGNUM is -1, do this for all fp registers in regset. */
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static void
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am33_supply_fpregset_method (const struct regset *regset,
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struct regcache *regcache,
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int regnum, const void *fpregs, size_t len)
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{
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const mn10300_elf_fpregset_t *fpregset = fpregs;
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gdb_assert (len == sizeof (mn10300_elf_fpregset_t));
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if (regnum == -1)
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{
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int i;
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for (i = 0; i < MN10300_ELF_NFPREG; i++)
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am33_supply_fpregset_method (regset, regcache,
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E_FS0_REGNUM + i, fpregs, len);
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am33_supply_fpregset_method (regset, regcache,
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E_FPCR_REGNUM, fpregs, len);
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}
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else if (regnum == E_FPCR_REGNUM)
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regcache_raw_supply (current_regcache, E_FPCR_REGNUM,
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&fpregset->fpcr);
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else if (E_FS0_REGNUM <= regnum && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG)
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regcache_raw_supply (current_regcache, regnum,
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&fpregset->fpregs[regnum - E_FS0_REGNUM]);
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return;
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}
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/* Copy register values from regcache to regset. */
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static void
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am33_collect_gregset_method (const struct regset *regset,
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const struct regcache *regcache,
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int regnum, void *gregs, size_t len)
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{
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mn10300_elf_gregset_t *regp = gregs;
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int i;
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gdb_assert (len == sizeof (mn10300_elf_gregset_t));
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switch (regnum) {
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case E_D0_REGNUM:
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regcache_raw_collect (regcache, E_D0_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0));
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break;
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case E_D1_REGNUM:
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regcache_raw_collect (regcache, E_D1_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1));
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break;
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case E_D2_REGNUM:
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regcache_raw_collect (regcache, E_D2_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2));
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break;
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case E_D3_REGNUM:
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regcache_raw_collect (regcache, E_D3_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3));
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break;
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case E_A0_REGNUM:
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regcache_raw_collect (regcache, E_A0_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0));
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break;
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case E_A1_REGNUM:
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regcache_raw_collect (regcache, E_A1_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1));
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break;
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case E_A2_REGNUM:
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regcache_raw_collect (regcache, E_A2_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2));
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break;
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case E_A3_REGNUM:
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regcache_raw_collect (regcache, E_A3_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3));
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break;
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case E_SP_REGNUM:
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regcache_raw_collect (regcache, E_SP_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP));
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break;
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case E_PC_REGNUM:
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regcache_raw_collect (regcache, E_PC_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC));
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break;
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case E_MDR_REGNUM:
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regcache_raw_collect (regcache, E_MDR_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR));
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break;
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case E_PSW_REGNUM:
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regcache_raw_collect (regcache, E_PSW_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW));
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break;
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case E_LIR_REGNUM:
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regcache_raw_collect (regcache, E_LIR_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR));
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break;
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case E_LAR_REGNUM:
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regcache_raw_collect (regcache, E_LAR_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR));
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break;
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case E_MDRQ_REGNUM:
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regcache_raw_collect (regcache, E_MDRQ_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ));
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break;
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case E_E0_REGNUM:
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regcache_raw_collect (regcache, E_E0_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0));
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break;
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case E_E1_REGNUM:
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regcache_raw_collect (regcache, E_E1_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1));
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break;
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case E_E2_REGNUM:
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regcache_raw_collect (regcache, E_E2_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2));
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break;
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case E_E3_REGNUM:
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regcache_raw_collect (regcache, E_E3_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3));
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break;
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case E_E4_REGNUM:
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regcache_raw_collect (regcache, E_E4_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4));
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break;
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case E_E5_REGNUM:
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regcache_raw_collect (regcache, E_E5_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5));
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break;
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case E_E6_REGNUM:
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regcache_raw_collect (regcache, E_E6_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6));
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break;
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case E_E7_REGNUM:
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regcache_raw_collect (regcache, E_E7_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7));
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break;
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/* ssp, msp, and usp are inaccessible. */
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case E_E8_REGNUM:
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/* The gregset struct has noplace to put this: do nothing. */
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break;
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case E_E9_REGNUM:
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/* The gregset struct has noplace to put this: do nothing. */
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break;
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case E_E10_REGNUM:
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/* The gregset struct has noplace to put this: do nothing. */
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break;
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case E_MCRH_REGNUM:
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regcache_raw_collect (regcache, E_MCRH_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH));
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break;
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case E_MCRL_REGNUM:
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regcache_raw_collect (regcache, E_MCRL_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL));
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break;
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case E_MCVF_REGNUM:
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regcache_raw_collect (regcache, E_MCVF_REGNUM,
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(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF));
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break;
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case E_FPCR_REGNUM:
|
|
/* FPCR is numbered among the GP regs, but handled as an FP reg.
|
|
Do nothing. */
|
|
break;
|
|
case E_FPCR_REGNUM + 1:
|
|
/* The gregset struct has noplace to put this: do nothing. */
|
|
break;
|
|
case E_FPCR_REGNUM + 2:
|
|
/* The gregset struct has noplace to put this: do nothing. */
|
|
break;
|
|
default: /* An error, obviously, but should we error out? */
|
|
break;
|
|
case -1:
|
|
for (i = 0; i < MN10300_ELF_NGREG; i++)
|
|
am33_collect_gregset_method (regset, regcache, i, gregs, len);
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* Copy fp register values from regcache to regset. */
|
|
|
|
static void
|
|
am33_collect_fpregset_method (const struct regset *regset,
|
|
const struct regcache *regcache,
|
|
int regnum, void *fpregs, size_t len)
|
|
{
|
|
mn10300_elf_fpregset_t *fpregset = fpregs;
|
|
|
|
gdb_assert (len == sizeof (mn10300_elf_fpregset_t));
|
|
|
|
if (regnum == -1)
|
|
{
|
|
int i;
|
|
for (i = 0; i < MN10300_ELF_NFPREG; i++)
|
|
am33_collect_fpregset_method (regset, regcache, E_FS0_REGNUM + i,
|
|
fpregs, len);
|
|
am33_collect_fpregset_method (regset, regcache,
|
|
E_FPCR_REGNUM, fpregs, len);
|
|
}
|
|
else if (regnum == E_FPCR_REGNUM)
|
|
regcache_raw_collect (current_regcache, E_FPCR_REGNUM,
|
|
&fpregset->fpcr);
|
|
else if (E_FS0_REGNUM <= regnum
|
|
&& regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG)
|
|
regcache_raw_collect (current_regcache, regnum,
|
|
&fpregset->fpregs[regnum - E_FS0_REGNUM]);
|
|
|
|
return;
|
|
}
|
|
|
|
/* Create a struct regset from a corefile register section. */
|
|
|
|
static const struct regset *
|
|
am33_regset_from_core_section (struct gdbarch *gdbarch,
|
|
const char *sect_name,
|
|
size_t sect_size)
|
|
{
|
|
/* We will call regset_alloc, and pass the names of the supply and
|
|
collect methods. */
|
|
|
|
if (sect_size == sizeof (mn10300_elf_fpregset_t))
|
|
return regset_alloc (gdbarch,
|
|
am33_supply_fpregset_method,
|
|
am33_collect_fpregset_method);
|
|
else
|
|
return regset_alloc (gdbarch,
|
|
am33_supply_gregset_method,
|
|
am33_collect_gregset_method);
|
|
}
|
|
|
|
/* AM33 Linux osabi has been recognized.
|
|
Now's our chance to register our corefile handling. */
|
|
|
|
static void
|
|
am33_linux_init_osabi (struct gdbarch_info gdbinfo, struct gdbarch *gdbarch)
|
|
{
|
|
set_gdbarch_regset_from_core_section (gdbarch,
|
|
am33_regset_from_core_section);
|
|
set_solib_svr4_fetch_link_map_offsets
|
|
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
|
|
}
|
|
|
|
void
|
|
_initialize_mn10300_linux_tdep (void)
|
|
{
|
|
gdbarch_register_osabi (bfd_arch_mn10300, 0,
|
|
GDB_OSABI_LINUX, am33_linux_init_osabi);
|
|
}
|
|
|