| /* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger. |
| |
| Copyright (C) 2003-2016 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #include "defs.h" |
| #include "gdbcore.h" |
| #include "regcache.h" |
| #include "mn10300-tdep.h" |
| #include "bfd.h" |
| #include "elf-bfd.h" |
| #include "osabi.h" |
| #include "regset.h" |
| #include "solib-svr4.h" |
| #include "frame.h" |
| #include "trad-frame.h" |
| #include "tramp-frame.h" |
| #include "linux-tdep.h" |
| |
| /* Transliterated from <asm-mn10300/elf.h>... */ |
| #define MN10300_ELF_NGREG 28 |
| #define MN10300_ELF_NFPREG 32 |
| |
| typedef gdb_byte mn10300_elf_greg_t[4]; |
| typedef mn10300_elf_greg_t mn10300_elf_gregset_t[MN10300_ELF_NGREG]; |
| |
| typedef gdb_byte mn10300_elf_fpreg_t[4]; |
| typedef struct |
| { |
| mn10300_elf_fpreg_t fpregs[MN10300_ELF_NFPREG]; |
| gdb_byte fpcr[4]; |
| } mn10300_elf_fpregset_t; |
| |
| /* elf_gregset_t register indices stolen from include/asm-mn10300/ptrace.h. */ |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_A3 0 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_A2 1 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_D3 2 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_D2 3 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_MCVF 4 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_MCRL 5 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_MCRH 6 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ 7 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_E1 8 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_E0 9 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_E7 10 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_E6 11 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_E5 12 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_E4 13 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_E3 14 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_E2 15 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_SP 16 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_LAR 17 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_LIR 18 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_MDR 19 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_A1 20 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_A0 21 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_D1 22 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_D0 23 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_ORIG_D0 24 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_EPSW 25 |
| #define MN10300_ELF_GREGSET_T_REG_INDEX_PC 26 |
| |
| /* New gdbarch API for corefile registers. |
| Given a section name and size, create a struct reg object |
| with a supply_register and a collect_register method. */ |
| |
| /* Copy register value of REGNUM from regset to regcache. |
| If REGNUM is -1, do this for all gp registers in regset. */ |
| |
| static void |
| am33_supply_gregset_method (const struct regset *regset, |
| struct regcache *regcache, |
| int regnum, const void *gregs, size_t len) |
| { |
| char zerobuf[MAX_REGISTER_SIZE]; |
| const mn10300_elf_greg_t *regp = (const mn10300_elf_greg_t *) gregs; |
| int i; |
| |
| gdb_assert (len >= sizeof (mn10300_elf_gregset_t)); |
| |
| switch (regnum) { |
| case E_D0_REGNUM: |
| regcache_raw_supply (regcache, E_D0_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0)); |
| break; |
| case E_D1_REGNUM: |
| regcache_raw_supply (regcache, E_D1_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1)); |
| break; |
| case E_D2_REGNUM: |
| regcache_raw_supply (regcache, E_D2_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2)); |
| break; |
| case E_D3_REGNUM: |
| regcache_raw_supply (regcache, E_D3_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3)); |
| break; |
| case E_A0_REGNUM: |
| regcache_raw_supply (regcache, E_A0_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0)); |
| break; |
| case E_A1_REGNUM: |
| regcache_raw_supply (regcache, E_A1_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1)); |
| break; |
| case E_A2_REGNUM: |
| regcache_raw_supply (regcache, E_A2_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2)); |
| break; |
| case E_A3_REGNUM: |
| regcache_raw_supply (regcache, E_A3_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3)); |
| break; |
| case E_SP_REGNUM: |
| regcache_raw_supply (regcache, E_SP_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP)); |
| break; |
| case E_PC_REGNUM: |
| regcache_raw_supply (regcache, E_PC_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC)); |
| break; |
| case E_MDR_REGNUM: |
| regcache_raw_supply (regcache, E_MDR_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR)); |
| break; |
| case E_PSW_REGNUM: |
| regcache_raw_supply (regcache, E_PSW_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW)); |
| break; |
| case E_LIR_REGNUM: |
| regcache_raw_supply (regcache, E_LIR_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR)); |
| break; |
| case E_LAR_REGNUM: |
| regcache_raw_supply (regcache, E_LAR_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR)); |
| break; |
| case E_MDRQ_REGNUM: |
| regcache_raw_supply (regcache, E_MDRQ_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ)); |
| break; |
| case E_E0_REGNUM: |
| regcache_raw_supply (regcache, E_E0_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0)); |
| break; |
| case E_E1_REGNUM: |
| regcache_raw_supply (regcache, E_E1_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1)); |
| break; |
| case E_E2_REGNUM: |
| regcache_raw_supply (regcache, E_E2_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2)); |
| break; |
| case E_E3_REGNUM: |
| regcache_raw_supply (regcache, E_E3_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3)); |
| break; |
| case E_E4_REGNUM: |
| regcache_raw_supply (regcache, E_E4_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4)); |
| break; |
| case E_E5_REGNUM: |
| regcache_raw_supply (regcache, E_E5_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5)); |
| break; |
| case E_E6_REGNUM: |
| regcache_raw_supply (regcache, E_E6_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6)); |
| break; |
| case E_E7_REGNUM: |
| regcache_raw_supply (regcache, E_E7_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7)); |
| break; |
| |
| /* ssp, msp, and usp are inaccessible. */ |
| case E_E8_REGNUM: |
| memset (zerobuf, 0, MAX_REGISTER_SIZE); |
| regcache_raw_supply (regcache, E_E8_REGNUM, zerobuf); |
| break; |
| case E_E9_REGNUM: |
| memset (zerobuf, 0, MAX_REGISTER_SIZE); |
| regcache_raw_supply (regcache, E_E9_REGNUM, zerobuf); |
| break; |
| case E_E10_REGNUM: |
| memset (zerobuf, 0, MAX_REGISTER_SIZE); |
| regcache_raw_supply (regcache, E_E10_REGNUM, zerobuf); |
| |
| break; |
| case E_MCRH_REGNUM: |
| regcache_raw_supply (regcache, E_MCRH_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH)); |
| break; |
| case E_MCRL_REGNUM: |
| regcache_raw_supply (regcache, E_MCRL_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL)); |
| break; |
| case E_MCVF_REGNUM: |
| regcache_raw_supply (regcache, E_MCVF_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF)); |
| break; |
| 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 two unused registers beyond fpcr are inaccessible. */ |
| memset (zerobuf, 0, MAX_REGISTER_SIZE); |
| regcache_raw_supply (regcache, E_FPCR_REGNUM + 1, zerobuf); |
| break; |
| case E_FPCR_REGNUM + 2: |
| memset (zerobuf, 0, MAX_REGISTER_SIZE); |
| regcache_raw_supply (regcache, E_FPCR_REGNUM + 2, zerobuf); |
| break; |
| default: /* An error, obviously, but should we error out? */ |
| break; |
| case -1: |
| for (i = 0; i < MN10300_ELF_NGREG; i++) |
| am33_supply_gregset_method (regset, regcache, i, gregs, len); |
| break; |
| } |
| return; |
| } |
| |
| /* Copy fp register value of REGNUM from regset to regcache. |
| If REGNUM is -1, do this for all fp registers in regset. */ |
| |
| static void |
| am33_supply_fpregset_method (const struct regset *regset, |
| struct regcache *regcache, |
| int regnum, const void *fpregs, size_t len) |
| { |
| const mn10300_elf_fpregset_t *fpregset |
| = (const mn10300_elf_fpregset_t *) fpregs; |
| |
| gdb_assert (len >= sizeof (mn10300_elf_fpregset_t)); |
| |
| if (regnum == -1) |
| { |
| int i; |
| |
| for (i = 0; i < MN10300_ELF_NFPREG; i++) |
| am33_supply_fpregset_method (regset, regcache, |
| E_FS0_REGNUM + i, fpregs, len); |
| am33_supply_fpregset_method (regset, regcache, |
| E_FPCR_REGNUM, fpregs, len); |
| } |
| else if (regnum == E_FPCR_REGNUM) |
| regcache_raw_supply (regcache, E_FPCR_REGNUM, |
| &fpregset->fpcr); |
| else if (E_FS0_REGNUM <= regnum |
| && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG) |
| regcache_raw_supply (regcache, regnum, |
| &fpregset->fpregs[regnum - E_FS0_REGNUM]); |
| |
| return; |
| } |
| |
| /* Copy register values from regcache to regset. */ |
| |
| static void |
| am33_collect_gregset_method (const struct regset *regset, |
| const struct regcache *regcache, |
| int regnum, void *gregs, size_t len) |
| { |
| mn10300_elf_gregset_t *regp = (gdb_byte (*)[28][4]) gregs; |
| int i; |
| |
| gdb_assert (len >= sizeof (mn10300_elf_gregset_t)); |
| |
| switch (regnum) { |
| case E_D0_REGNUM: |
| regcache_raw_collect (regcache, E_D0_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0)); |
| break; |
| case E_D1_REGNUM: |
| regcache_raw_collect (regcache, E_D1_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1)); |
| break; |
| case E_D2_REGNUM: |
| regcache_raw_collect (regcache, E_D2_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2)); |
| break; |
| case E_D3_REGNUM: |
| regcache_raw_collect (regcache, E_D3_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3)); |
| break; |
| case E_A0_REGNUM: |
| regcache_raw_collect (regcache, E_A0_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0)); |
| break; |
| case E_A1_REGNUM: |
| regcache_raw_collect (regcache, E_A1_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1)); |
| break; |
| case E_A2_REGNUM: |
| regcache_raw_collect (regcache, E_A2_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2)); |
| break; |
| case E_A3_REGNUM: |
| regcache_raw_collect (regcache, E_A3_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3)); |
| break; |
| case E_SP_REGNUM: |
| regcache_raw_collect (regcache, E_SP_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP)); |
| break; |
| case E_PC_REGNUM: |
| regcache_raw_collect (regcache, E_PC_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC)); |
| break; |
| case E_MDR_REGNUM: |
| regcache_raw_collect (regcache, E_MDR_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR)); |
| break; |
| case E_PSW_REGNUM: |
| regcache_raw_collect (regcache, E_PSW_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW)); |
| break; |
| case E_LIR_REGNUM: |
| regcache_raw_collect (regcache, E_LIR_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR)); |
| break; |
| case E_LAR_REGNUM: |
| regcache_raw_collect (regcache, E_LAR_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR)); |
| break; |
| case E_MDRQ_REGNUM: |
| regcache_raw_collect (regcache, E_MDRQ_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ)); |
| break; |
| case E_E0_REGNUM: |
| regcache_raw_collect (regcache, E_E0_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0)); |
| break; |
| case E_E1_REGNUM: |
| regcache_raw_collect (regcache, E_E1_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1)); |
| break; |
| case E_E2_REGNUM: |
| regcache_raw_collect (regcache, E_E2_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2)); |
| break; |
| case E_E3_REGNUM: |
| regcache_raw_collect (regcache, E_E3_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3)); |
| break; |
| case E_E4_REGNUM: |
| regcache_raw_collect (regcache, E_E4_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4)); |
| break; |
| case E_E5_REGNUM: |
| regcache_raw_collect (regcache, E_E5_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5)); |
| break; |
| case E_E6_REGNUM: |
| regcache_raw_collect (regcache, E_E6_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6)); |
| break; |
| case E_E7_REGNUM: |
| regcache_raw_collect (regcache, E_E7_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7)); |
| break; |
| |
| /* ssp, msp, and usp are inaccessible. */ |
| case E_E8_REGNUM: |
| /* The gregset struct has noplace to put this: do nothing. */ |
| break; |
| case E_E9_REGNUM: |
| /* The gregset struct has noplace to put this: do nothing. */ |
| break; |
| case E_E10_REGNUM: |
| /* The gregset struct has noplace to put this: do nothing. */ |
| break; |
| case E_MCRH_REGNUM: |
| regcache_raw_collect (regcache, E_MCRH_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH)); |
| break; |
| case E_MCRL_REGNUM: |
| regcache_raw_collect (regcache, E_MCRL_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL)); |
| break; |
| case E_MCVF_REGNUM: |
| regcache_raw_collect (regcache, E_MCVF_REGNUM, |
| (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF)); |
| break; |
| 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 = (mn10300_elf_fpregset_t *) 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 (regcache, E_FPCR_REGNUM, |
| &fpregset->fpcr); |
| else if (E_FS0_REGNUM <= regnum |
| && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG) |
| regcache_raw_collect (regcache, regnum, |
| &fpregset->fpregs[regnum - E_FS0_REGNUM]); |
| |
| return; |
| } |
| |
| static const struct regset am33_gregset = |
| { |
| NULL, am33_supply_gregset_method, am33_collect_gregset_method |
| }; |
| |
| static const struct regset am33_fpregset = |
| { |
| NULL, am33_supply_fpregset_method, am33_collect_fpregset_method |
| }; |
| |
| /* Iterate over core file register note sections. */ |
| |
| static void |
| am33_iterate_over_regset_sections (struct gdbarch *gdbarch, |
| iterate_over_regset_sections_cb *cb, |
| void *cb_data, |
| const struct regcache *regcache) |
| { |
| cb (".reg", sizeof (mn10300_elf_gregset_t), &am33_gregset, |
| NULL, cb_data); |
| cb (".reg2", sizeof(mn10300_elf_fpregset_t), &am33_fpregset, |
| NULL, cb_data); |
| } |
| |
| static void |
| am33_linux_sigframe_cache_init (const struct tramp_frame *self, |
| struct frame_info *this_frame, |
| struct trad_frame_cache *this_cache, |
| CORE_ADDR func); |
| |
| static const struct tramp_frame am33_linux_sigframe = { |
| SIGTRAMP_FRAME, |
| 1, |
| { |
| /* mov 119,d0 */ |
| { 0x2c, -1 }, |
| { 0x77, -1 }, |
| { 0x00, -1 }, |
| /* syscall 0 */ |
| { 0xf0, -1 }, |
| { 0xe0, -1 }, |
| { TRAMP_SENTINEL_INSN, -1 } |
| }, |
| am33_linux_sigframe_cache_init |
| }; |
| |
| static const struct tramp_frame am33_linux_rt_sigframe = { |
| SIGTRAMP_FRAME, |
| 1, |
| { |
| /* mov 173,d0 */ |
| { 0x2c, -1 }, |
| { 0xad, -1 }, |
| { 0x00, -1 }, |
| /* syscall 0 */ |
| { 0xf0, -1 }, |
| { 0xe0, -1 }, |
| { TRAMP_SENTINEL_INSN, -1 } |
| }, |
| am33_linux_sigframe_cache_init |
| }; |
| |
| /* Relevant struct definitions for signal handling... |
| |
| From arch/mn10300/kernel/sigframe.h: |
| |
| struct sigframe |
| { |
| void (*pretcode)(void); |
| int sig; |
| struct sigcontext *psc; |
| struct sigcontext sc; |
| struct fpucontext fpuctx; |
| unsigned long extramask[_NSIG_WORDS-1]; |
| char retcode[8]; |
| }; |
| |
| struct rt_sigframe |
| { |
| void (*pretcode)(void); |
| int sig; |
| struct siginfo *pinfo; |
| void *puc; |
| struct siginfo info; |
| struct ucontext uc; |
| struct fpucontext fpuctx; |
| char retcode[8]; |
| }; |
| |
| From include/asm-mn10300/ucontext.h: |
| |
| struct ucontext { |
| unsigned long uc_flags; |
| struct ucontext *uc_link; |
| stack_t uc_stack; |
| struct sigcontext uc_mcontext; |
| sigset_t uc_sigmask; |
| }; |
| |
| From include/asm-mn10300/sigcontext.h: |
| |
| struct fpucontext { |
| unsigned long fs[32]; |
| unsigned long fpcr; |
| }; |
| |
| struct sigcontext { |
| unsigned long d0; |
| unsigned long d1; |
| unsigned long d2; |
| unsigned long d3; |
| unsigned long a0; |
| unsigned long a1; |
| unsigned long a2; |
| unsigned long a3; |
| unsigned long e0; |
| unsigned long e1; |
| unsigned long e2; |
| unsigned long e3; |
| unsigned long e4; |
| unsigned long e5; |
| unsigned long e6; |
| unsigned long e7; |
| unsigned long lar; |
| unsigned long lir; |
| unsigned long mdr; |
| unsigned long mcvf; |
| unsigned long mcrl; |
| unsigned long mcrh; |
| unsigned long mdrq; |
| unsigned long sp; |
| unsigned long epsw; |
| unsigned long pc; |
| struct fpucontext *fpucontext; |
| unsigned long oldmask; |
| }; */ |
| |
| |
| #define AM33_SIGCONTEXT_D0 0 |
| #define AM33_SIGCONTEXT_D1 4 |
| #define AM33_SIGCONTEXT_D2 8 |
| #define AM33_SIGCONTEXT_D3 12 |
| #define AM33_SIGCONTEXT_A0 16 |
| #define AM33_SIGCONTEXT_A1 20 |
| #define AM33_SIGCONTEXT_A2 24 |
| #define AM33_SIGCONTEXT_A3 28 |
| #define AM33_SIGCONTEXT_E0 32 |
| #define AM33_SIGCONTEXT_E1 36 |
| #define AM33_SIGCONTEXT_E2 40 |
| #define AM33_SIGCONTEXT_E3 44 |
| #define AM33_SIGCONTEXT_E4 48 |
| #define AM33_SIGCONTEXT_E5 52 |
| #define AM33_SIGCONTEXT_E6 56 |
| #define AM33_SIGCONTEXT_E7 60 |
| #define AM33_SIGCONTEXT_LAR 64 |
| #define AM33_SIGCONTEXT_LIR 68 |
| #define AM33_SIGCONTEXT_MDR 72 |
| #define AM33_SIGCONTEXT_MCVF 76 |
| #define AM33_SIGCONTEXT_MCRL 80 |
| #define AM33_SIGCONTEXT_MCRH 84 |
| #define AM33_SIGCONTEXT_MDRQ 88 |
| #define AM33_SIGCONTEXT_SP 92 |
| #define AM33_SIGCONTEXT_EPSW 96 |
| #define AM33_SIGCONTEXT_PC 100 |
| #define AM33_SIGCONTEXT_FPUCONTEXT 104 |
| |
| |
| static void |
| am33_linux_sigframe_cache_init (const struct tramp_frame *self, |
| struct frame_info *this_frame, |
| struct trad_frame_cache *this_cache, |
| CORE_ADDR func) |
| { |
| CORE_ADDR sc_base, fpubase; |
| int i; |
| |
| sc_base = get_frame_register_unsigned (this_frame, E_SP_REGNUM); |
| if (self == &am33_linux_sigframe) |
| { |
| sc_base += 8; |
| sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4); |
| } |
| else |
| { |
| sc_base += 12; |
| sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4); |
| sc_base += 20; |
| } |
| |
| trad_frame_set_reg_addr (this_cache, E_D0_REGNUM, |
| sc_base + AM33_SIGCONTEXT_D0); |
| trad_frame_set_reg_addr (this_cache, E_D1_REGNUM, |
| sc_base + AM33_SIGCONTEXT_D1); |
| trad_frame_set_reg_addr (this_cache, E_D2_REGNUM, |
| sc_base + AM33_SIGCONTEXT_D2); |
| trad_frame_set_reg_addr (this_cache, E_D3_REGNUM, |
| sc_base + AM33_SIGCONTEXT_D3); |
| |
| trad_frame_set_reg_addr (this_cache, E_A0_REGNUM, |
| sc_base + AM33_SIGCONTEXT_A0); |
| trad_frame_set_reg_addr (this_cache, E_A1_REGNUM, |
| sc_base + AM33_SIGCONTEXT_A1); |
| trad_frame_set_reg_addr (this_cache, E_A2_REGNUM, |
| sc_base + AM33_SIGCONTEXT_A2); |
| trad_frame_set_reg_addr (this_cache, E_A3_REGNUM, |
| sc_base + AM33_SIGCONTEXT_A3); |
| |
| trad_frame_set_reg_addr (this_cache, E_E0_REGNUM, |
| sc_base + AM33_SIGCONTEXT_E0); |
| trad_frame_set_reg_addr (this_cache, E_E1_REGNUM, |
| sc_base + AM33_SIGCONTEXT_E1); |
| trad_frame_set_reg_addr (this_cache, E_E2_REGNUM, |
| sc_base + AM33_SIGCONTEXT_E2); |
| trad_frame_set_reg_addr (this_cache, E_E3_REGNUM, |
| sc_base + AM33_SIGCONTEXT_E3); |
| trad_frame_set_reg_addr (this_cache, E_E4_REGNUM, |
| sc_base + AM33_SIGCONTEXT_E4); |
| trad_frame_set_reg_addr (this_cache, E_E5_REGNUM, |
| sc_base + AM33_SIGCONTEXT_E5); |
| trad_frame_set_reg_addr (this_cache, E_E6_REGNUM, |
| sc_base + AM33_SIGCONTEXT_E6); |
| trad_frame_set_reg_addr (this_cache, E_E7_REGNUM, |
| sc_base + AM33_SIGCONTEXT_E7); |
| |
| trad_frame_set_reg_addr (this_cache, E_LAR_REGNUM, |
| sc_base + AM33_SIGCONTEXT_LAR); |
| trad_frame_set_reg_addr (this_cache, E_LIR_REGNUM, |
| sc_base + AM33_SIGCONTEXT_LIR); |
| trad_frame_set_reg_addr (this_cache, E_MDR_REGNUM, |
| sc_base + AM33_SIGCONTEXT_MDR); |
| trad_frame_set_reg_addr (this_cache, E_MCVF_REGNUM, |
| sc_base + AM33_SIGCONTEXT_MCVF); |
| trad_frame_set_reg_addr (this_cache, E_MCRL_REGNUM, |
| sc_base + AM33_SIGCONTEXT_MCRL); |
| trad_frame_set_reg_addr (this_cache, E_MDRQ_REGNUM, |
| sc_base + AM33_SIGCONTEXT_MDRQ); |
| |
| trad_frame_set_reg_addr (this_cache, E_SP_REGNUM, |
| sc_base + AM33_SIGCONTEXT_SP); |
| trad_frame_set_reg_addr (this_cache, E_PSW_REGNUM, |
| sc_base + AM33_SIGCONTEXT_EPSW); |
| trad_frame_set_reg_addr (this_cache, E_PC_REGNUM, |
| sc_base + AM33_SIGCONTEXT_PC); |
| |
| fpubase = get_frame_memory_unsigned (this_frame, |
| sc_base + AM33_SIGCONTEXT_FPUCONTEXT, |
| 4); |
| if (fpubase) |
| { |
| for (i = 0; i < 32; i++) |
| { |
| trad_frame_set_reg_addr (this_cache, E_FS0_REGNUM + i, |
| fpubase + 4 * i); |
| } |
| trad_frame_set_reg_addr (this_cache, E_FPCR_REGNUM, fpubase + 4 * 32); |
| } |
| |
| trad_frame_set_id (this_cache, frame_id_build (sc_base, func)); |
| } |
| |
| /* AM33 GNU/Linux osabi has been recognized. |
| Now's our chance to register our corefile handling. */ |
| |
| static void |
| am33_linux_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch) |
| { |
| linux_init_abi (info, gdbarch); |
| |
| set_gdbarch_iterate_over_regset_sections |
| (gdbarch, am33_iterate_over_regset_sections); |
| set_solib_svr4_fetch_link_map_offsets |
| (gdbarch, svr4_ilp32_fetch_link_map_offsets); |
| |
| tramp_frame_prepend_unwinder (gdbarch, &am33_linux_sigframe); |
| tramp_frame_prepend_unwinder (gdbarch, &am33_linux_rt_sigframe); |
| } |
| |
| /* Provide a prototype to silence -Wmissing-prototypes. */ |
| extern initialize_file_ftype _initialize_mn10300_linux_tdep; |
| |
| void |
| _initialize_mn10300_linux_tdep (void) |
| { |
| gdbarch_register_osabi (bfd_arch_mn10300, 0, |
| GDB_OSABI_LINUX, am33_linux_init_osabi); |
| } |
| |
