1 /* Target-dependent code for SPARC.
3 Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011
4 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 #define SPARC_TDEP_H 1
28 struct trad_frame_saved_reg
;
30 /* Register offsets for the general-purpose register set. */
45 /* SPARC architecture-specific information. */
49 /* Register numbers for the PN and nPC registers. The definitions
50 for (64-bit) UltraSPARC differ from the (32-bit) SPARC
56 struct regset
*gregset
;
57 size_t sizeof_gregset
;
58 struct regset
*fpregset
;
59 size_t sizeof_fpregset
;
61 /* Offset of saved PC in jmp_buf. */
64 /* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't
65 treat the PLT special when doing prologue analysis. */
66 size_t plt_entry_size
;
68 /* Alternative location for trap return. Used for single-stepping. */
69 CORE_ADDR (*step_trap
) (struct frame_info
*frame
, unsigned long insn
);
71 /* ISA-specific data types. */
72 struct type
*sparc_psr_type
;
73 struct type
*sparc_fsr_type
;
74 struct type
*sparc64_pstate_type
;
75 struct type
*sparc64_fsr_type
;
76 struct type
*sparc64_fprs_type
;
79 /* Register numbers of various important registers. */
83 SPARC_G0_REGNUM
, /* %g0 */
90 SPARC_G7_REGNUM
, /* %g7 */
91 SPARC_O0_REGNUM
, /* %o0 */
97 SPARC_SP_REGNUM
, /* %sp (%o6) */
98 SPARC_O7_REGNUM
, /* %o7 */
99 SPARC_L0_REGNUM
, /* %l0 */
106 SPARC_L7_REGNUM
, /* %l7 */
107 SPARC_I0_REGNUM
, /* %i0 */
113 SPARC_FP_REGNUM
, /* %fp (%i6) */
114 SPARC_I7_REGNUM
, /* %i7 */
115 SPARC_F0_REGNUM
, /* %f0 */
117 SPARC_F31_REGNUM
/* %f31 */
118 = SPARC_F0_REGNUM
+ 31
123 SPARC32_Y_REGNUM
/* %y */
124 = SPARC_F31_REGNUM
+ 1,
125 SPARC32_PSR_REGNUM
, /* %psr */
126 SPARC32_WIM_REGNUM
, /* %wim */
127 SPARC32_TBR_REGNUM
, /* %tbr */
128 SPARC32_PC_REGNUM
, /* %pc */
129 SPARC32_NPC_REGNUM
, /* %npc */
130 SPARC32_FSR_REGNUM
, /* %fsr */
131 SPARC32_CSR_REGNUM
, /* %csr */
133 /* Pseudo registers. */
134 SPARC32_D0_REGNUM
, /* %d0 */
135 SPARC32_D30_REGNUM
/* %d30 */
136 = SPARC32_D0_REGNUM
+ 15
140 struct sparc_frame_cache
146 /* Do we have a frame? */
149 /* The offset from the base register to the CFA. */
152 /* Mask of `local' and `in' registers saved in the register save area. */
153 unsigned short int saved_regs_mask
;
155 /* Mask of `out' registers copied or renamed to their `in' sibling. */
156 unsigned char copied_regs_mask
;
158 /* Do we have a Structure, Union or Quad-Precision return value? */
161 /* Table of saved registers. */
162 struct trad_frame_saved_reg
*saved_regs
;
165 /* Fetch the instruction at PC. */
166 extern unsigned long sparc_fetch_instruction (CORE_ADDR pc
);
168 /* Fetch StackGhost Per-Process XOR cookie. */
169 extern ULONGEST
sparc_fetch_wcookie (struct gdbarch
*gdbarch
);
171 /* Record the effect of a SAVE instruction on CACHE. */
172 extern void sparc_record_save_insn (struct sparc_frame_cache
*cache
);
174 /* Do a full analysis of the prologue at PC and update CACHE accordingly. */
175 extern CORE_ADDR
sparc_analyze_prologue (struct gdbarch
*gdbarch
,
176 CORE_ADDR pc
, CORE_ADDR current_pc
,
177 struct sparc_frame_cache
*cache
);
179 extern struct sparc_frame_cache
*
180 sparc_frame_cache (struct frame_info
*this_frame
, void **this_cache
);
182 extern struct sparc_frame_cache
*
183 sparc32_frame_cache (struct frame_info
*this_frame
, void **this_cache
);
187 extern int sparc_software_single_step (struct frame_info
*frame
);
189 extern void sparc_supply_rwindow (struct regcache
*regcache
,
190 CORE_ADDR sp
, int regnum
);
191 extern void sparc_collect_rwindow (const struct regcache
*regcache
,
192 CORE_ADDR sp
, int regnum
);
194 /* Register offsets for SunOS 4. */
195 extern const struct sparc_gregset sparc32_sunos4_gregset
;
197 extern void sparc32_supply_gregset (const struct sparc_gregset
*gregset
,
198 struct regcache
*regcache
,
199 int regnum
, const void *gregs
);
200 extern void sparc32_collect_gregset (const struct sparc_gregset
*gregset
,
201 const struct regcache
*regcache
,
202 int regnum
, void *gregs
);
203 extern void sparc32_supply_fpregset (struct regcache
*regcache
,
204 int regnum
, const void *fpregs
);
205 extern void sparc32_collect_fpregset (const struct regcache
*regcache
,
206 int regnum
, void *fpregs
);
208 /* Functions and variables exported from sparc-sol2-tdep.c. */
210 /* Register offsets for Solaris 2. */
211 extern const struct sparc_gregset sparc32_sol2_gregset
;
213 extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc
, char *name
);
215 extern char *sparc_sol2_static_transform_name (char *name
);
217 extern void sparc32_sol2_init_abi (struct gdbarch_info info
,
218 struct gdbarch
*gdbarch
);
220 /* Functions and variables exported from sparcnbsd-tdep.c. */
222 /* Register offsets for NetBSD. */
223 extern const struct sparc_gregset sparc32nbsd_gregset
;
225 /* Return the address of a system call's alternative return
227 extern CORE_ADDR
sparcnbsd_step_trap (struct frame_info
*frame
,
230 extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info
,
231 struct gdbarch
*gdbarch
);
233 extern struct trad_frame_saved_reg
*
234 sparc32nbsd_sigcontext_saved_regs (struct frame_info
*next_frame
);
236 #endif /* sparc-tdep.h */