1 /* Target-dependent code for AMD64 Solaris.
3 Copyright (C) 2001, 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
5 Contributed by Joseph Myers, CodeSourcery, LLC.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 Boston, MA 02110-1301, USA. */
31 #include "gdb_string.h"
33 #include "sol2-tdep.h"
34 #include "amd64-tdep.h"
35 #include "solib-svr4.h"
37 /* Mapping between the general-purpose registers in gregset_t format
38 and GDB's register cache layout. */
40 /* From <sys/regset.h>. */
41 static int amd64_sol2_gregset_reg_offset[] = {
69 /* Return whether the frame preceding NEXT_FRAME corresponds to a
70 Solaris sigtramp routine. */
73 amd64_sol2_sigtramp_p (struct frame_info *next_frame)
75 CORE_ADDR pc = frame_pc_unwind (next_frame);
78 find_pc_partial_function (pc, &name, NULL, NULL);
79 return (name && (strcmp ("sigacthandler", name) == 0
80 || strcmp (name, "ucbsigvechandler") == 0));
83 /* Solaris doesn't have a 'struct sigcontext', but it does have a
84 'mcontext_t' that contains the saved set of machine registers. */
87 amd64_sol2_mcontext_addr (struct frame_info *next_frame)
89 CORE_ADDR sp, ucontext_addr;
91 sp = frame_unwind_register_unsigned (next_frame, AMD64_RSP_REGNUM);
92 ucontext_addr = get_frame_memory_unsigned (next_frame, sp + 8, 8);
94 return ucontext_addr + 72;
98 amd64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
100 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
102 tdep->gregset_reg_offset = amd64_sol2_gregset_reg_offset;
103 tdep->gregset_num_regs = ARRAY_SIZE (amd64_sol2_gregset_reg_offset);
104 tdep->sizeof_gregset = 28 * 8;
106 amd64_init_abi (info, gdbarch);
108 tdep->sigtramp_p = amd64_sol2_sigtramp_p;
109 tdep->sigcontext_addr = amd64_sol2_mcontext_addr;
110 tdep->sc_reg_offset = tdep->gregset_reg_offset;
111 tdep->sc_num_regs = tdep->gregset_num_regs;
113 /* Solaris uses SVR4-style shared libraries. */
114 set_gdbarch_skip_solib_resolver (gdbarch, sol2_skip_solib_resolver);
115 set_solib_svr4_fetch_link_map_offsets
116 (gdbarch, svr4_lp64_fetch_link_map_offsets);
120 /* Provide a prototype to silence -Wmissing-prototypes. */
121 extern void _initialize_amd64_sol2_tdep (void);
124 _initialize_amd64_sol2_tdep (void)
126 gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
127 GDB_OSABI_SOLARIS, amd64_sol2_init_abi);