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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [gdb/] [sparc-tdep.h] - Blame information for rev 280

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1 24 jeremybenn
/* Target-dependent code for SPARC.
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   Copyright (C) 2003, 2004, 2006, 2007, 2008 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 3 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, see <http://www.gnu.org/licenses/>.  */
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#ifndef SPARC_TDEP_H
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#define SPARC_TDEP_H 1
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struct frame_info;
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struct gdbarch;
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struct regcache;
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struct regset;
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struct trad_frame_saved_reg;
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/* Register offsets for the general-purpose register set.  */
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struct sparc_gregset
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{
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  int r_psr_offset;
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  int r_pc_offset;
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  int r_npc_offset;
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  int r_y_offset;
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  int r_wim_offset;
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  int r_tbr_offset;
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  int r_g1_offset;
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  int r_l0_offset;
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  int r_y_size;
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};
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/* SPARC architecture-specific information.  */
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struct gdbarch_tdep
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{
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  /* Register numbers for the PN and nPC registers.  The definitions
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     for (64-bit) UltraSPARC differ from the (32-bit) SPARC
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     definitions.  */
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  int pc_regnum;
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  int npc_regnum;
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  /* Register sets.  */
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  struct regset *gregset;
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  size_t sizeof_gregset;
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  struct regset *fpregset;
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  size_t sizeof_fpregset;
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  /* Offset of saved PC in jmp_buf.  */
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  int jb_pc_offset;
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  /* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't
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     treat the PLT special when doing prologue analysis.  */
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  size_t plt_entry_size;
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  /* Alternative location for trap return.  Used for single-stepping.  */
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  CORE_ADDR (*step_trap) (struct frame_info *frame, unsigned long insn);
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};
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/* Register numbers of various important registers.  */
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enum sparc_regnum
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{
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  SPARC_G0_REGNUM,              /* %g0 */
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  SPARC_G1_REGNUM,
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  SPARC_G2_REGNUM,
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  SPARC_G3_REGNUM,
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  SPARC_G4_REGNUM,
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  SPARC_G5_REGNUM,
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  SPARC_G6_REGNUM,
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  SPARC_G7_REGNUM,              /* %g7 */
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  SPARC_O0_REGNUM,              /* %o0 */
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  SPARC_O1_REGNUM,
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  SPARC_O2_REGNUM,
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  SPARC_O3_REGNUM,
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  SPARC_O4_REGNUM,
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  SPARC_O5_REGNUM,
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  SPARC_SP_REGNUM,              /* %sp (%o6) */
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  SPARC_O7_REGNUM,              /* %o7 */
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  SPARC_L0_REGNUM,              /* %l0 */
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  SPARC_L1_REGNUM,
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  SPARC_L2_REGNUM,
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  SPARC_L3_REGNUM,
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  SPARC_L4_REGNUM,
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  SPARC_L5_REGNUM,
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  SPARC_L6_REGNUM,
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  SPARC_L7_REGNUM,              /* %l7 */
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  SPARC_I0_REGNUM,              /* %i0 */
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  SPARC_I1_REGNUM,
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  SPARC_I2_REGNUM,
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  SPARC_I3_REGNUM,
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  SPARC_I4_REGNUM,
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  SPARC_I5_REGNUM,
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  SPARC_FP_REGNUM,              /* %fp (%i6) */
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  SPARC_I7_REGNUM,              /* %i7 */
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  SPARC_F0_REGNUM,              /* %f0 */
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  SPARC_F1_REGNUM,
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  SPARC_F31_REGNUM              /* %f31 */
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  = SPARC_F0_REGNUM + 31
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};
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enum sparc32_regnum
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{
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  SPARC32_Y_REGNUM              /* %y */
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  = SPARC_F31_REGNUM + 1,
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  SPARC32_PSR_REGNUM,           /* %psr */
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  SPARC32_WIM_REGNUM,           /* %wim */
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  SPARC32_TBR_REGNUM,           /* %tbr */
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  SPARC32_PC_REGNUM,            /* %pc */
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  SPARC32_NPC_REGNUM,           /* %npc */
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  SPARC32_FSR_REGNUM,           /* %fsr */
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  SPARC32_CSR_REGNUM,           /* %csr */
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  /* Pseudo registers.  */
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  SPARC32_D0_REGNUM,            /* %d0 */
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  SPARC32_D30_REGNUM            /* %d30 */
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  = SPARC32_D0_REGNUM + 15
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};
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struct sparc_frame_cache
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{
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  /* Base address.  */
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  CORE_ADDR base;
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  CORE_ADDR pc;
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  /* Do we have a frame?  */
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  int frameless_p;
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  /* Do we have a Structure, Union or Quad-Precision return value?.  */
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  int struct_return_p;
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  /* Table of saved registers.  */
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  struct trad_frame_saved_reg *saved_regs;
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};
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/* Fetch the instruction at PC.  */
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extern unsigned long sparc_fetch_instruction (CORE_ADDR pc);
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/* Fetch StackGhost Per-Process XOR cookie.  */
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extern ULONGEST sparc_fetch_wcookie (void);
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extern CORE_ADDR sparc_analyze_prologue (struct gdbarch *gdbarch,
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                                         CORE_ADDR pc, CORE_ADDR current_pc,
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                                         struct sparc_frame_cache *cache);
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extern struct sparc_frame_cache *
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  sparc_frame_cache (struct frame_info *next_frame, void **this_cache);
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extern struct sparc_frame_cache *
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  sparc32_frame_cache (struct frame_info *next_frame, void **this_cache);
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extern int sparc_software_single_step (struct frame_info *frame);
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extern void sparc_supply_rwindow (struct regcache *regcache,
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                                  CORE_ADDR sp, int regnum);
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extern void sparc_collect_rwindow (const struct regcache *regcache,
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                                   CORE_ADDR sp, int regnum);
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/* Register offsets for SunOS 4.  */
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extern const struct sparc_gregset sparc32_sunos4_gregset;
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extern void sparc32_supply_gregset (const struct sparc_gregset *gregset,
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                                    struct regcache *regcache,
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                                    int regnum, const void *gregs);
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extern void sparc32_collect_gregset (const struct sparc_gregset *gregset,
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                                     const struct regcache *regcache,
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                                     int regnum, void *gregs);
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extern void sparc32_supply_fpregset (struct regcache *regcache,
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                                     int regnum, const void *fpregs);
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extern void sparc32_collect_fpregset (const struct regcache *regcache,
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                                      int regnum, void *fpregs);
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/* Functions and variables exported from sparc-sol2-tdep.c.  */
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/* Register offsets for Solaris 2.  */
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extern const struct sparc_gregset sparc32_sol2_gregset;
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extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name);
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extern char *sparc_sol2_static_transform_name (char *name);
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extern void sparc32_sol2_init_abi (struct gdbarch_info info,
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                                   struct gdbarch *gdbarch);
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/* Functions and variables exported from sparcnbsd-tdep.c.  */
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/* Register offsets for NetBSD.  */
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extern const struct sparc_gregset sparc32nbsd_gregset;
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/* Return the address of a system call's alternative return
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   address.  */
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extern CORE_ADDR sparcnbsd_step_trap (struct frame_info *frame,
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                                      unsigned long insn);
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extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info,
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                                      struct gdbarch *gdbarch);
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extern struct trad_frame_saved_reg *
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  sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame);
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#endif /* sparc-tdep.h */

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