diff options
Diffstat (limited to 'gdb/sparc-tdep.h')
| -rw-r--r-- | gdb/sparc-tdep.h | 185 |
1 files changed, 182 insertions, 3 deletions
diff --git a/gdb/sparc-tdep.h b/gdb/sparc-tdep.h index 7c119b4..00c4136 100644 --- a/gdb/sparc-tdep.h +++ b/gdb/sparc-tdep.h @@ -1,6 +1,6 @@ -/* Target-dependent code for the SPARC for GDB, the GNU debugger. +/* Target-dependent code for SPARC. - Copyright 2003 Free Software Foundation, Inc. + Copyright 2003, 2004 Free Software Foundation, Inc. This file is part of GDB. @@ -19,4 +19,183 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -extern int sparc_y_regnum (void); +#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; +}; + +/* 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); + +extern CORE_ADDR sparc_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc, + struct sparc_frame_cache *cache); + +extern struct sparc_frame_cache * + sparc_frame_cache (struct frame_info *next_frame, void **this_cache); + +extern struct sparc_frame_cache * + sparc32_frame_cache (struct frame_info *next_frame, void **this_cache); + + + +extern void sparc_software_single_step (enum target_signal sig, + int insert_breakpoints_p); + +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 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; + +extern struct trad_frame_saved_reg * + sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame); + +#endif /* sparc-tdep.h */ |