/* Target-dependent code for AMD64 Solaris. Copyright (C) 2001-2014 Free Software Foundation, Inc. Contributed by Joseph Myers, CodeSourcery, LLC. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "defs.h" #include "frame.h" #include "gdbcore.h" #include "regcache.h" #include "osabi.h" #include "symtab.h" #include "sol2-tdep.h" #include "amd64-tdep.h" #include "solib-svr4.h" /* Mapping between the general-purpose registers in gregset_t format and GDB's register cache layout. */ /* From <sys/regset.h>. */ static int amd64_sol2_gregset_reg_offset[] = { 14 * 8, /* %rax */ 11 * 8, /* %rbx */ 13 * 8, /* %rcx */ 12 * 8, /* %rdx */ 9 * 8, /* %rsi */ 8 * 8, /* %rdi */ 10 * 8, /* %rbp */ 20 * 8, /* %rsp */ 7 * 8, /* %r8 ... */ 6 * 8, 5 * 8, 4 * 8, 3 * 8, 2 * 8, 1 * 8, 0 * 8, /* ... %r15 */ 17 * 8, /* %rip */ 19 * 8, /* %eflags */ 18 * 8, /* %cs */ 21 * 8, /* %ss */ 25 * 8, /* %ds */ 24 * 8, /* %es */ 22 * 8, /* %fs */ 23 * 8 /* %gs */ }; /* Return whether THIS_FRAME corresponds to a Solaris sigtramp routine. */ static int amd64_sol2_sigtramp_p (struct frame_info *this_frame) { CORE_ADDR pc = get_frame_pc (this_frame); const char *name; find_pc_partial_function (pc, &name, NULL, NULL); return (name && (strcmp ("sigacthandler", name) == 0 || strcmp (name, "ucbsigvechandler") == 0)); } /* Solaris doesn't have a 'struct sigcontext', but it does have a 'mcontext_t' that contains the saved set of machine registers. */ static CORE_ADDR amd64_sol2_mcontext_addr (struct frame_info *this_frame) { CORE_ADDR sp, ucontext_addr; sp = get_frame_register_unsigned (this_frame, AMD64_RSP_REGNUM); ucontext_addr = get_frame_memory_unsigned (this_frame, sp + 8, 8); return ucontext_addr + 72; } static void amd64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) { struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); tdep->gregset_reg_offset = amd64_sol2_gregset_reg_offset; tdep->gregset_num_regs = ARRAY_SIZE (amd64_sol2_gregset_reg_offset); tdep->sizeof_gregset = 28 * 8; amd64_init_abi (info, gdbarch); tdep->sigtramp_p = amd64_sol2_sigtramp_p; tdep->sigcontext_addr = amd64_sol2_mcontext_addr; tdep->sc_reg_offset = tdep->gregset_reg_offset; tdep->sc_num_regs = tdep->gregset_num_regs; /* Solaris uses SVR4-style shared libraries. */ set_gdbarch_skip_solib_resolver (gdbarch, sol2_skip_solib_resolver); set_solib_svr4_fetch_link_map_offsets (gdbarch, svr4_lp64_fetch_link_map_offsets); /* How to print LWP PTIDs from core files. */ set_gdbarch_core_pid_to_str (gdbarch, sol2_core_pid_to_str); } /* Provide a prototype to silence -Wmissing-prototypes. */ extern void _initialize_amd64_sol2_tdep (void); void _initialize_amd64_sol2_tdep (void) { gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, GDB_OSABI_SOLARIS, amd64_sol2_init_abi); }