| 1 | /* Target-dependent code for SPARC. |
| 2 | |
| 3 | Copyright (C) 2003, 2004, 2006, 2007, 2008 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef SPARC_TDEP_H |
| 21 | #define SPARC_TDEP_H 1 |
| 22 | |
| 23 | struct frame_info; |
| 24 | struct gdbarch; |
| 25 | struct regcache; |
| 26 | struct regset; |
| 27 | struct trad_frame_saved_reg; |
| 28 | |
| 29 | /* Register offsets for the general-purpose register set. */ |
| 30 | |
| 31 | struct sparc_gregset |
| 32 | { |
| 33 | int r_psr_offset; |
| 34 | int r_pc_offset; |
| 35 | int r_npc_offset; |
| 36 | int r_y_offset; |
| 37 | int r_wim_offset; |
| 38 | int r_tbr_offset; |
| 39 | int r_g1_offset; |
| 40 | int r_l0_offset; |
| 41 | int r_y_size; |
| 42 | }; |
| 43 | |
| 44 | /* SPARC architecture-specific information. */ |
| 45 | |
| 46 | struct gdbarch_tdep |
| 47 | { |
| 48 | /* Register numbers for the PN and nPC registers. The definitions |
| 49 | for (64-bit) UltraSPARC differ from the (32-bit) SPARC |
| 50 | definitions. */ |
| 51 | int pc_regnum; |
| 52 | int npc_regnum; |
| 53 | |
| 54 | /* Register sets. */ |
| 55 | struct regset *gregset; |
| 56 | size_t sizeof_gregset; |
| 57 | struct regset *fpregset; |
| 58 | size_t sizeof_fpregset; |
| 59 | |
| 60 | /* Offset of saved PC in jmp_buf. */ |
| 61 | int jb_pc_offset; |
| 62 | |
| 63 | /* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't |
| 64 | treat the PLT special when doing prologue analysis. */ |
| 65 | size_t plt_entry_size; |
| 66 | |
| 67 | /* Alternative location for trap return. Used for single-stepping. */ |
| 68 | CORE_ADDR (*step_trap) (struct frame_info *frame, unsigned long insn); |
| 69 | }; |
| 70 | |
| 71 | /* Register numbers of various important registers. */ |
| 72 | |
| 73 | enum sparc_regnum |
| 74 | { |
| 75 | SPARC_G0_REGNUM, /* %g0 */ |
| 76 | SPARC_G1_REGNUM, |
| 77 | SPARC_G2_REGNUM, |
| 78 | SPARC_G3_REGNUM, |
| 79 | SPARC_G4_REGNUM, |
| 80 | SPARC_G5_REGNUM, |
| 81 | SPARC_G6_REGNUM, |
| 82 | SPARC_G7_REGNUM, /* %g7 */ |
| 83 | SPARC_O0_REGNUM, /* %o0 */ |
| 84 | SPARC_O1_REGNUM, |
| 85 | SPARC_O2_REGNUM, |
| 86 | SPARC_O3_REGNUM, |
| 87 | SPARC_O4_REGNUM, |
| 88 | SPARC_O5_REGNUM, |
| 89 | SPARC_SP_REGNUM, /* %sp (%o6) */ |
| 90 | SPARC_O7_REGNUM, /* %o7 */ |
| 91 | SPARC_L0_REGNUM, /* %l0 */ |
| 92 | SPARC_L1_REGNUM, |
| 93 | SPARC_L2_REGNUM, |
| 94 | SPARC_L3_REGNUM, |
| 95 | SPARC_L4_REGNUM, |
| 96 | SPARC_L5_REGNUM, |
| 97 | SPARC_L6_REGNUM, |
| 98 | SPARC_L7_REGNUM, /* %l7 */ |
| 99 | SPARC_I0_REGNUM, /* %i0 */ |
| 100 | SPARC_I1_REGNUM, |
| 101 | SPARC_I2_REGNUM, |
| 102 | SPARC_I3_REGNUM, |
| 103 | SPARC_I4_REGNUM, |
| 104 | SPARC_I5_REGNUM, |
| 105 | SPARC_FP_REGNUM, /* %fp (%i6) */ |
| 106 | SPARC_I7_REGNUM, /* %i7 */ |
| 107 | SPARC_F0_REGNUM, /* %f0 */ |
| 108 | SPARC_F1_REGNUM, |
| 109 | SPARC_F31_REGNUM /* %f31 */ |
| 110 | = SPARC_F0_REGNUM + 31 |
| 111 | }; |
| 112 | |
| 113 | enum sparc32_regnum |
| 114 | { |
| 115 | SPARC32_Y_REGNUM /* %y */ |
| 116 | = SPARC_F31_REGNUM + 1, |
| 117 | SPARC32_PSR_REGNUM, /* %psr */ |
| 118 | SPARC32_WIM_REGNUM, /* %wim */ |
| 119 | SPARC32_TBR_REGNUM, /* %tbr */ |
| 120 | SPARC32_PC_REGNUM, /* %pc */ |
| 121 | SPARC32_NPC_REGNUM, /* %npc */ |
| 122 | SPARC32_FSR_REGNUM, /* %fsr */ |
| 123 | SPARC32_CSR_REGNUM, /* %csr */ |
| 124 | |
| 125 | /* Pseudo registers. */ |
| 126 | SPARC32_D0_REGNUM, /* %d0 */ |
| 127 | SPARC32_D30_REGNUM /* %d30 */ |
| 128 | = SPARC32_D0_REGNUM + 15 |
| 129 | }; |
| 130 | \f |
| 131 | |
| 132 | struct sparc_frame_cache |
| 133 | { |
| 134 | /* Base address. */ |
| 135 | CORE_ADDR base; |
| 136 | CORE_ADDR pc; |
| 137 | |
| 138 | /* Do we have a frame? */ |
| 139 | int frameless_p; |
| 140 | |
| 141 | /* Do we have a Structure, Union or Quad-Precision return value?. */ |
| 142 | int struct_return_p; |
| 143 | |
| 144 | /* Table of saved registers. */ |
| 145 | struct trad_frame_saved_reg *saved_regs; |
| 146 | }; |
| 147 | |
| 148 | /* Fetch the instruction at PC. */ |
| 149 | extern unsigned long sparc_fetch_instruction (CORE_ADDR pc); |
| 150 | |
| 151 | /* Fetch StackGhost Per-Process XOR cookie. */ |
| 152 | extern ULONGEST sparc_fetch_wcookie (void); |
| 153 | |
| 154 | extern CORE_ADDR sparc_analyze_prologue (struct gdbarch *gdbarch, |
| 155 | CORE_ADDR pc, CORE_ADDR current_pc, |
| 156 | struct sparc_frame_cache *cache); |
| 157 | |
| 158 | extern struct sparc_frame_cache * |
| 159 | sparc_frame_cache (struct frame_info *this_frame, void **this_cache); |
| 160 | |
| 161 | extern struct sparc_frame_cache * |
| 162 | sparc32_frame_cache (struct frame_info *this_frame, void **this_cache); |
| 163 | |
| 164 | \f |
| 165 | |
| 166 | extern int sparc_software_single_step (struct frame_info *frame); |
| 167 | |
| 168 | extern void sparc_supply_rwindow (struct regcache *regcache, |
| 169 | CORE_ADDR sp, int regnum); |
| 170 | extern void sparc_collect_rwindow (const struct regcache *regcache, |
| 171 | CORE_ADDR sp, int regnum); |
| 172 | |
| 173 | /* Register offsets for SunOS 4. */ |
| 174 | extern const struct sparc_gregset sparc32_sunos4_gregset; |
| 175 | |
| 176 | extern void sparc32_supply_gregset (const struct sparc_gregset *gregset, |
| 177 | struct regcache *regcache, |
| 178 | int regnum, const void *gregs); |
| 179 | extern void sparc32_collect_gregset (const struct sparc_gregset *gregset, |
| 180 | const struct regcache *regcache, |
| 181 | int regnum, void *gregs); |
| 182 | extern void sparc32_supply_fpregset (struct regcache *regcache, |
| 183 | int regnum, const void *fpregs); |
| 184 | extern void sparc32_collect_fpregset (const struct regcache *regcache, |
| 185 | int regnum, void *fpregs); |
| 186 | |
| 187 | /* Functions and variables exported from sparc-sol2-tdep.c. */ |
| 188 | |
| 189 | /* Register offsets for Solaris 2. */ |
| 190 | extern const struct sparc_gregset sparc32_sol2_gregset; |
| 191 | |
| 192 | extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name); |
| 193 | |
| 194 | extern char *sparc_sol2_static_transform_name (char *name); |
| 195 | |
| 196 | extern void sparc32_sol2_init_abi (struct gdbarch_info info, |
| 197 | struct gdbarch *gdbarch); |
| 198 | |
| 199 | /* Functions and variables exported from sparcnbsd-tdep.c. */ |
| 200 | |
| 201 | /* Register offsets for NetBSD. */ |
| 202 | extern const struct sparc_gregset sparc32nbsd_gregset; |
| 203 | |
| 204 | /* Return the address of a system call's alternative return |
| 205 | address. */ |
| 206 | extern CORE_ADDR sparcnbsd_step_trap (struct frame_info *frame, |
| 207 | unsigned long insn); |
| 208 | |
| 209 | extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info, |
| 210 | struct gdbarch *gdbarch); |
| 211 | |
| 212 | extern struct trad_frame_saved_reg * |
| 213 | sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame); |
| 214 | |
| 215 | #endif /* sparc-tdep.h */ |