gdb/sparc-tdep.h - gdb

Data types defined

Macros defined

Source code

  1. /* Target-dependent code for SPARC.

  3.    Copyright (C) 2003-2015 Free Software Foundation, Inc.

  5.    This file is part of GDB.

  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.

  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.

  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/>.  */

  20. #ifndef SPARC_TDEP_H
  21. ‌#define SPARC_TDEP_H 1

  23. struct frame_info;
  24. struct gdbarch;
  25. struct regcache;
  26. struct regset;
  27. struct trad_frame_saved_reg;

  29. /* Register offsets for the general-purpose register set.  */

  31. ‌struct sparc_gregmap
  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. };

  44. ‌struct sparc_fpregmap
  45. {
  46.   int r_f0_offset;
  47.   int r_fsr_offset;
  48. };

  50. /* SPARC architecture-specific information.  */

  52. ‌struct gdbarch_tdep
  53. {
  54.   /* Register numbers for the PN and nPC registers.  The definitions
  55.      for (64-bit) UltraSPARC differ from the (32-bit) SPARC
  56.      definitions.  */
  57.   int pc_regnum;
  58.   int npc_regnum;

  60.   /* Register sets.  */
  61.   const struct regset *gregset;
  62.   size_t sizeof_gregset;
  63.   const struct regset *fpregset;
  64.   size_t sizeof_fpregset;

  66.   /* Offset of saved PC in jmp_buf.  */
  67.   int jb_pc_offset;

  69.   /* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't
  70.      treat the PLT special when doing prologue analysis.  */
  71.   size_t plt_entry_size;

  73.   /* Alternative location for trap return.  Used for single-stepping.  */
  74.   CORE_ADDR (*step_trap) (struct frame_info *frame, unsigned long insn);

  76.   /* ISA-specific data types.  */
  77.   struct type *sparc_psr_type;
  78.   struct type *sparc_fsr_type;
  79.   struct type *sparc64_pstate_type;
  80.   struct type *sparc64_fsr_type;
  81.   struct type *sparc64_fprs_type;
  82. };

  84. /* Register numbers of various important registers.  */

  86. ‌enum sparc_regnum
  87. {
  88.   SPARC_G0_REGNUM,                /* %g0 */
  89.   SPARC_G1_REGNUM,
  90.   SPARC_G2_REGNUM,
  91.   SPARC_G3_REGNUM,
  92.   SPARC_G4_REGNUM,
  93.   SPARC_G5_REGNUM,
  94.   SPARC_G6_REGNUM,
  95.   SPARC_G7_REGNUM,                /* %g7 */
  96.   SPARC_O0_REGNUM,                /* %o0 */
  97.   SPARC_O1_REGNUM,
  98.   SPARC_O2_REGNUM,
  99.   SPARC_O3_REGNUM,
  100.   SPARC_O4_REGNUM,
  101.   SPARC_O5_REGNUM,
  102.   SPARC_SP_REGNUM,                /* %sp (%o6) */
  103.   SPARC_O7_REGNUM,                /* %o7 */
  104.   SPARC_L0_REGNUM,                /* %l0 */
  105.   SPARC_L1_REGNUM,
  106.   SPARC_L2_REGNUM,
  107.   SPARC_L3_REGNUM,
  108.   SPARC_L4_REGNUM,
  109.   SPARC_L5_REGNUM,
  110.   SPARC_L6_REGNUM,
  111.   SPARC_L7_REGNUM,                /* %l7 */
  112.   SPARC_I0_REGNUM,                /* %i0 */
  113.   SPARC_I1_REGNUM,
  114.   SPARC_I2_REGNUM,
  115.   SPARC_I3_REGNUM,
  116.   SPARC_I4_REGNUM,
  117.   SPARC_I5_REGNUM,
  118.   SPARC_FP_REGNUM,                /* %fp (%i6) */
  119.   SPARC_I7_REGNUM,                /* %i7 */
  120.   SPARC_F0_REGNUM,                /* %f0 */
  121.   SPARC_F1_REGNUM,
  122.   SPARC_F2_REGNUM,
  123.   SPARC_F3_REGNUM,
  124.   SPARC_F4_REGNUM,
  125.   SPARC_F5_REGNUM,
  126.   SPARC_F6_REGNUM,
  127.   SPARC_F7_REGNUM,
  128.   SPARC_F31_REGNUM                /* %f31 */
  129.   = SPARC_F0_REGNUM + 31
  130. };

  132. ‌enum sparc32_regnum
  133. {
  134.   SPARC32_Y_REGNUM                /* %y */
  135.   = SPARC_F31_REGNUM + 1,
  136.   SPARC32_PSR_REGNUM,                /* %psr */
  137.   SPARC32_WIM_REGNUM,                /* %wim */
  138.   SPARC32_TBR_REGNUM,                /* %tbr */
  139.   SPARC32_PC_REGNUM,                /* %pc */
  140.   SPARC32_NPC_REGNUM,                /* %npc */
  141.   SPARC32_FSR_REGNUM,                /* %fsr */
  142.   SPARC32_CSR_REGNUM,                /* %csr */

  144.   /* Pseudo registers.  */
  145.   SPARC32_D0_REGNUM,                /* %d0 */
  146.   SPARC32_D30_REGNUM                /* %d30 */
  147.   = SPARC32_D0_REGNUM + 15
  148. };


  151. ‌struct sparc_frame_cache
  152. {
  153.   /* Base address.  */
  154.   CORE_ADDR base;
  155.   CORE_ADDR pc;

  157.   /* Do we have a frame?  */
  158.   int frameless_p;

  160.   /* The offset from the base register to the CFA.  */
  161.   int frame_offset;

  163.   /* Mask of `local' and `in' registers saved in the register save area.  */
  164.   unsigned short int saved_regs_mask;

  166.   /* Mask of `out' registers copied or renamed to their `in' sibling.  */
  167.   unsigned char copied_regs_mask;

  169.   /* Do we have a Structure, Union or Quad-Precision return value?  */
  170.   int struct_return_p;

  172.   /* Table of saved registers.  */
  173.   struct trad_frame_saved_reg *saved_regs;
  174. };

  176. /* Fetch the instruction at PC.  */
  177. extern unsigned long sparc_fetch_instruction (CORE_ADDR pc);

  179. /* Fetch StackGhost Per-Process XOR cookie.  */
  180. extern ULONGEST sparc_fetch_wcookie (struct gdbarch *gdbarch);

  182. /* Record the effect of a SAVE instruction on CACHE.  */
  183. extern void sparc_record_save_insn (struct sparc_frame_cache *cache);

  185. /* Do a full analysis of the prologue at PC and update CACHE accordingly.  */
  186. extern CORE_ADDR sparc_analyze_prologue (struct gdbarch *gdbarch,
  187.                                          CORE_ADDR pc, CORE_ADDR current_pc,
  188.                                          struct sparc_frame_cache *cache);

  190. extern struct sparc_frame_cache *
  191.   sparc_frame_cache (struct frame_info *this_frame, void **this_cache);

  193. extern struct sparc_frame_cache *
  194.   sparc32_frame_cache (struct frame_info *this_frame, void **this_cache);

  196. extern int
  197.   sparc_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc);



  201. extern int sparc_software_single_step (struct frame_info *frame);

  203. extern void sparc_supply_rwindow (struct regcache *regcache,
  204.                                   CORE_ADDR sp, int regnum);
  205. extern void sparc_collect_rwindow (const struct regcache *regcache,
  206.                                    CORE_ADDR sp, int regnum);

  208. /* Register offsets for SunOS 4.  */
  209. extern const struct sparc_gregmap sparc32_sunos4_gregmap;
  210. extern const struct sparc_fpregmap sparc32_sunos4_fpregmap;
  211. extern const struct sparc_fpregmap sparc32_bsd_fpregmap;

  213. extern void sparc32_supply_gregset (const struct sparc_gregmap *gregmap,
  214.                                     struct regcache *regcache,
  215.                                     int regnum, const void *gregs);
  216. extern void sparc32_collect_gregset (const struct sparc_gregmap *gregmap,
  217.                                      const struct regcache *regcache,
  218.                                      int regnum, void *gregs);
  219. extern void sparc32_supply_fpregset (const struct sparc_fpregmap *fpregmap,
  220.                                      struct regcache *regcache,
  221.                                      int regnum, const void *fpregs);
  222. extern void sparc32_collect_fpregset (const struct sparc_fpregmap *fpregmap,
  223.                                       const struct regcache *regcache,
  224.                                       int regnum, void *fpregs);

  226. extern int sparc_is_annulled_branch_insn (CORE_ADDR pc);

  228. /* Functions and variables exported from sparc-sol2-tdep.c.  */

  230. /* Register offsets for Solaris 2.  */
  231. extern const struct sparc_gregmap sparc32_sol2_gregmap;
  232. extern const struct sparc_fpregmap sparc32_sol2_fpregmap;

  234. extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, const char *name);

  236. extern const char *sparc_sol2_static_transform_name (const char *name);

  238. extern void sparc32_sol2_init_abi (struct gdbarch_info info,
  239.                                    struct gdbarch *gdbarch);

  241. /* Functions and variables exported from sparcnbsd-tdep.c.  */

  243. /* Register offsets for NetBSD.  */
  244. extern const struct sparc_gregmap sparc32nbsd_gregmap;

  246. /* Return the address of a system call's alternative return
  247.    address.  */
  248. extern CORE_ADDR sparcnbsd_step_trap (struct frame_info *frame,
  249.                                       unsigned long insn);

  251. extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info,
  252.                                       struct gdbarch *gdbarch);

  254. extern struct trad_frame_saved_reg *
  255.   sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame);

  257. #endif /* sparc-tdep.h */