1 /* Target-dependent code for AMD64 Solaris.
3 Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
4 Contributed by Joseph Myers, CodeSourcery, LLC.
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 2 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, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
30 #include "gdb_string.h"
32 #include "amd64-tdep.h"
33 #include "solib-svr4.h"
35 /* Mapping between the general-purpose registers in gregset_t format
36 and GDB's register cache layout. */
38 /* From <sys/regset.h>. */
39 static int amd64_sol2_gregset_reg_offset[] = {
67 /* Return whether the frame preceding NEXT_FRAME corresponds to a
68 Solaris sigtramp routine. */
71 amd64_sol2_sigtramp_p (struct frame_info *next_frame)
73 CORE_ADDR pc = frame_pc_unwind (next_frame);
76 find_pc_partial_function (pc, &name, NULL, NULL);
77 return (name && (strcmp ("sigacthandler", name) == 0
78 || strcmp (name, "ucbsigvechandler") == 0));
81 /* Solaris doesn't have a 'struct sigcontext', but it does have a
82 'mcontext_t' that contains the saved set of machine registers. */
85 amd64_sol2_mcontext_addr (struct frame_info *next_frame)
87 CORE_ADDR sp, ucontext_addr;
89 sp = frame_unwind_register_unsigned (next_frame, AMD64_RSP_REGNUM);
90 ucontext_addr = get_frame_memory_unsigned (next_frame, sp + 8, 8);
92 return ucontext_addr + 72;
96 amd64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
98 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
100 tdep->gregset_reg_offset = amd64_sol2_gregset_reg_offset;
101 tdep->gregset_num_regs = ARRAY_SIZE (amd64_sol2_gregset_reg_offset);
102 tdep->sizeof_gregset = 28 * 8;
104 amd64_init_abi (info, gdbarch);
106 tdep->sigtramp_p = amd64_sol2_sigtramp_p;
107 tdep->sigcontext_addr = amd64_sol2_mcontext_addr;
108 tdep->sc_reg_offset = tdep->gregset_reg_offset;
109 tdep->sc_num_regs = tdep->gregset_num_regs;
111 /* Solaris uses SVR4-style shared libraries. */
112 set_solib_svr4_fetch_link_map_offsets
113 (gdbarch, svr4_lp64_fetch_link_map_offsets);
117 /* Provide a prototype to silence -Wmissing-prototypes. */
118 extern void _initialize_amd64_sol2_tdep (void);
121 _initialize_amd64_sol2_tdep (void)
123 gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
124 GDB_OSABI_SOLARIS, amd64_sol2_init_abi);