1 /* Target-dependent code for SPARC. 2 3 Copyright 2003, 2004 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 2 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, write to the Free Software 19 Foundation, Inc., 59 Temple Place - Suite 330, 20 Boston, MA 02111-1307, USA. */ 21 22 #ifndef SPARC_TDEP_H 23 #define SPARC_TDEP_H 1 24 25 struct frame_info; 26 struct gdbarch; 27 struct regcache; 28 struct regset; 29 struct trad_frame_saved_reg; 30 31 /* Register offsets for the general-purpose register set. */ 32 33 struct sparc_gregset 34 { 35 int r_psr_offset; 36 int r_pc_offset; 37 int r_npc_offset; 38 int r_y_offset; 39 int r_wim_offset; 40 int r_tbr_offset; 41 int r_g1_offset; 42 int r_l0_offset; 43 int r_y_size; 44 }; 45 46 /* SPARC architecture-specific information. */ 47 48 struct gdbarch_tdep 49 { 50 /* Register numbers for the PN and nPC registers. The definitions 51 for (64-bit) UltraSPARC differ from the (32-bit) SPARC 52 definitions. */ 53 int pc_regnum; 54 int npc_regnum; 55 56 /* Register sets. */ 57 struct regset *gregset; 58 size_t sizeof_gregset; 59 struct regset *fpregset; 60 size_t sizeof_fpregset; 61 62 /* Offset of saved PC in jmp_buf. */ 63 int jb_pc_offset; 64 65 /* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't 66 treat the PLT special when doing prologue analysis. */ 67 size_t plt_entry_size; 68 }; 69 70 /* Register numbers of various important registers. */ 71 72 enum sparc_regnum 73 { 74 SPARC_G0_REGNUM, /* %g0 */ 75 SPARC_G1_REGNUM, 76 SPARC_G2_REGNUM, 77 SPARC_G3_REGNUM, 78 SPARC_G4_REGNUM, 79 SPARC_G5_REGNUM, 80 SPARC_G6_REGNUM, 81 SPARC_G7_REGNUM, /* %g7 */ 82 SPARC_O0_REGNUM, /* %o0 */ 83 SPARC_O1_REGNUM, 84 SPARC_O2_REGNUM, 85 SPARC_O3_REGNUM, 86 SPARC_O4_REGNUM, 87 SPARC_O5_REGNUM, 88 SPARC_SP_REGNUM, /* %sp (%o6) */ 89 SPARC_O7_REGNUM, /* %o7 */ 90 SPARC_L0_REGNUM, /* %l0 */ 91 SPARC_L1_REGNUM, 92 SPARC_L2_REGNUM, 93 SPARC_L3_REGNUM, 94 SPARC_L4_REGNUM, 95 SPARC_L5_REGNUM, 96 SPARC_L6_REGNUM, 97 SPARC_L7_REGNUM, /* %l7 */ 98 SPARC_I0_REGNUM, /* %i0 */ 99 SPARC_I1_REGNUM, 100 SPARC_I2_REGNUM, 101 SPARC_I3_REGNUM, 102 SPARC_I4_REGNUM, 103 SPARC_I5_REGNUM, 104 SPARC_FP_REGNUM, /* %fp (%i6) */ 105 SPARC_I7_REGNUM, /* %i7 */ 106 SPARC_F0_REGNUM, /* %f0 */ 107 SPARC_F1_REGNUM, 108 SPARC_F31_REGNUM /* %f31 */ 109 = SPARC_F0_REGNUM + 31 110 }; 111 112 enum sparc32_regnum 113 { 114 SPARC32_Y_REGNUM /* %y */ 115 = SPARC_F31_REGNUM + 1, 116 SPARC32_PSR_REGNUM, /* %psr */ 117 SPARC32_WIM_REGNUM, /* %wim */ 118 SPARC32_TBR_REGNUM, /* %tbr */ 119 SPARC32_PC_REGNUM, /* %pc */ 120 SPARC32_NPC_REGNUM, /* %npc */ 121 SPARC32_FSR_REGNUM, /* %fsr */ 122 SPARC32_CSR_REGNUM, /* %csr */ 123 124 /* Pseudo registers. */ 125 SPARC32_D0_REGNUM, /* %d0 */ 126 SPARC32_D30_REGNUM /* %d30 */ 127 = SPARC32_D0_REGNUM + 15 128 }; 129 130 131 struct sparc_frame_cache 132 { 133 /* Base address. */ 134 CORE_ADDR base; 135 CORE_ADDR pc; 136 137 /* Do we have a frame? */ 138 int frameless_p; 139 140 /* Do we have a Structure, Union or Quad-Precision return value?. */ 141 int struct_return_p; 142 143 /* Table of saved registers. */ 144 struct trad_frame_saved_reg *saved_regs; 145 }; 146 147 /* Fetch the instruction at PC. */ 148 extern unsigned long sparc_fetch_instruction (CORE_ADDR pc); 149 150 /* Fetch StackGhost Per-Process XOR cookie. */ 151 extern ULONGEST sparc_fetch_wcookie (void); 152 153 extern CORE_ADDR sparc_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc, 154 struct sparc_frame_cache *cache); 155 156 extern struct sparc_frame_cache * 157 sparc_frame_cache (struct frame_info *next_frame, void **this_cache); 158 159 extern struct sparc_frame_cache * 160 sparc32_frame_cache (struct frame_info *next_frame, void **this_cache); 161 162 163 164 extern void sparc_software_single_step (enum target_signal sig, 165 int insert_breakpoints_p); 166 167 extern void sparc_supply_rwindow (struct regcache *regcache, 168 CORE_ADDR sp, int regnum); 169 extern void sparc_collect_rwindow (const struct regcache *regcache, 170 CORE_ADDR sp, int regnum); 171 172 /* Register offsets for SunOS 4. */ 173 extern const struct sparc_gregset sparc32_sunos4_gregset; 174 175 extern void sparc32_supply_gregset (const struct sparc_gregset *gregset, 176 struct regcache *regcache, 177 int regnum, const void *gregs); 178 extern void sparc32_collect_gregset (const struct sparc_gregset *gregset, 179 const struct regcache *regcache, 180 int regnum, void *gregs); 181 extern void sparc32_supply_fpregset (struct regcache *regcache, 182 int regnum, const void *fpregs); 183 extern void sparc32_collect_fpregset (const struct regcache *regcache, 184 int regnum, void *fpregs); 185 186 /* Functions and variables exported from sparc-sol2-tdep.c. */ 187 188 /* Register offsets for Solaris 2. */ 189 extern const struct sparc_gregset sparc32_sol2_gregset; 190 191 extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name); 192 193 extern void sparc32_sol2_init_abi (struct gdbarch_info info, 194 struct gdbarch *gdbarch); 195 196 /* Functions and variables exported from sparcnbsd-tdep.c. */ 197 198 /* Register offsets for NetBSD. */ 199 extern const struct sparc_gregset sparc32nbsd_gregset; 200 201 extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info, 202 struct gdbarch *gdbarch); 203 204 extern struct trad_frame_saved_reg * 205 sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame); 206 207 #endif /* sparc-tdep.h */ 208