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