1 /* Target-dependent code for SPARC.
3 Copyright (C) 2003, 2004, 2006, 2007, 2008 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/>. */
21 #define SPARC_TDEP_H 1
27 struct trad_frame_saved_reg
;
29 /* Register offsets for the general-purpose register set. */
44 /* SPARC architecture-specific information. */
48 /* Register numbers for the PN and nPC registers. The definitions
49 for (64-bit) UltraSPARC differ from the (32-bit) SPARC
55 struct regset
*gregset
;
56 size_t sizeof_gregset
;
57 struct regset
*fpregset
;
58 size_t sizeof_fpregset
;
60 /* Offset of saved PC in jmp_buf. */
63 /* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't
64 treat the PLT special when doing prologue analysis. */
65 size_t plt_entry_size
;
67 /* Alternative location for trap return. Used for single-stepping. */
68 CORE_ADDR (*step_trap
) (struct frame_info
*frame
, unsigned long insn
);
71 /* Register numbers of various important registers. */
75 SPARC_G0_REGNUM
, /* %g0 */
82 SPARC_G7_REGNUM
, /* %g7 */
83 SPARC_O0_REGNUM
, /* %o0 */
89 SPARC_SP_REGNUM
, /* %sp (%o6) */
90 SPARC_O7_REGNUM
, /* %o7 */
91 SPARC_L0_REGNUM
, /* %l0 */
98 SPARC_L7_REGNUM
, /* %l7 */
99 SPARC_I0_REGNUM
, /* %i0 */
105 SPARC_FP_REGNUM
, /* %fp (%i6) */
106 SPARC_I7_REGNUM
, /* %i7 */
107 SPARC_F0_REGNUM
, /* %f0 */
109 SPARC_F31_REGNUM
/* %f31 */
110 = SPARC_F0_REGNUM
+ 31
115 SPARC32_Y_REGNUM
/* %y */
116 = SPARC_F31_REGNUM
+ 1,
117 SPARC32_PSR_REGNUM
, /* %psr */
118 SPARC32_WIM_REGNUM
, /* %wim */
119 SPARC32_TBR_REGNUM
, /* %tbr */
120 SPARC32_PC_REGNUM
, /* %pc */
121 SPARC32_NPC_REGNUM
, /* %npc */
122 SPARC32_FSR_REGNUM
, /* %fsr */
123 SPARC32_CSR_REGNUM
, /* %csr */
125 /* Pseudo registers. */
126 SPARC32_D0_REGNUM
, /* %d0 */
127 SPARC32_D30_REGNUM
/* %d30 */
128 = SPARC32_D0_REGNUM
+ 15
132 struct sparc_frame_cache
138 /* Do we have a frame? */
141 /* Do we have a Structure, Union or Quad-Precision return value?. */
144 /* Table of saved registers. */
145 struct trad_frame_saved_reg
*saved_regs
;
148 /* Fetch the instruction at PC. */
149 extern unsigned long sparc_fetch_instruction (CORE_ADDR pc
);
151 /* Fetch StackGhost Per-Process XOR cookie. */
152 extern ULONGEST
sparc_fetch_wcookie (void);
154 extern CORE_ADDR
sparc_analyze_prologue (struct gdbarch
*gdbarch
,
155 CORE_ADDR pc
, CORE_ADDR current_pc
,
156 struct sparc_frame_cache
*cache
);
158 extern struct sparc_frame_cache
*
159 sparc_frame_cache (struct frame_info
*this_frame
, void **this_cache
);
161 extern struct sparc_frame_cache
*
162 sparc32_frame_cache (struct frame_info
*this_frame
, void **this_cache
);
166 extern int sparc_software_single_step (struct frame_info
*frame
);
168 extern void sparc_supply_rwindow (struct regcache
*regcache
,
169 CORE_ADDR sp
, int regnum
);
170 extern void sparc_collect_rwindow (const struct regcache
*regcache
,
171 CORE_ADDR sp
, int regnum
);
173 /* Register offsets for SunOS 4. */
174 extern const struct sparc_gregset sparc32_sunos4_gregset
;
176 extern void sparc32_supply_gregset (const struct sparc_gregset
*gregset
,
177 struct regcache
*regcache
,
178 int regnum
, const void *gregs
);
179 extern void sparc32_collect_gregset (const struct sparc_gregset
*gregset
,
180 const struct regcache
*regcache
,
181 int regnum
, void *gregs
);
182 extern void sparc32_supply_fpregset (struct regcache
*regcache
,
183 int regnum
, const void *fpregs
);
184 extern void sparc32_collect_fpregset (const struct regcache
*regcache
,
185 int regnum
, void *fpregs
);
187 /* Functions and variables exported from sparc-sol2-tdep.c. */
189 /* Register offsets for Solaris 2. */
190 extern const struct sparc_gregset sparc32_sol2_gregset
;
192 extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc
, char *name
);
194 extern char *sparc_sol2_static_transform_name (char *name
);
196 extern void sparc32_sol2_init_abi (struct gdbarch_info info
,
197 struct gdbarch
*gdbarch
);
199 /* Functions and variables exported from sparcnbsd-tdep.c. */
201 /* Register offsets for NetBSD. */
202 extern const struct sparc_gregset sparc32nbsd_gregset
;
204 /* Return the address of a system call's alternative return
206 extern CORE_ADDR
sparcnbsd_step_trap (struct frame_info
*frame
,
209 extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info
,
210 struct gdbarch
*gdbarch
);
212 extern struct trad_frame_saved_reg
*
213 sparc32nbsd_sigcontext_saved_regs (struct frame_info
*next_frame
);
215 #endif /* sparc-tdep.h */