1 /* Target-dependent code for AMD64 Solaris. 2 3 Copyright (C) 2001-2023 Free Software Foundation, Inc. 4 5 Contributed by Joseph Myers, CodeSourcery, LLC. 6 7 This file is part of GDB. 8 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 3 of the License, or 12 (at your option) any later version. 13 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. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 21 22 #include "defs.h" 23 #include "frame.h" 24 #include "gdbcore.h" 25 #include "regcache.h" 26 #include "osabi.h" 27 #include "symtab.h" 28 29 #include "sol2-tdep.h" 30 #include "amd64-tdep.h" 31 #include "gdbsupport/x86-xstate.h" 32 #include "solib-svr4.h" 33 34 /* Mapping between the general-purpose registers in gregset_t format 35 and GDB's register cache layout. */ 36 37 /* From <sys/regset.h>. */ 38 static int amd64_sol2_gregset_reg_offset[] = { 39 14 * 8, /* %rax */ 40 11 * 8, /* %rbx */ 41 13 * 8, /* %rcx */ 42 12 * 8, /* %rdx */ 43 9 * 8, /* %rsi */ 44 8 * 8, /* %rdi */ 45 10 * 8, /* %rbp */ 46 20 * 8, /* %rsp */ 47 7 * 8, /* %r8 ... */ 48 6 * 8, 49 5 * 8, 50 4 * 8, 51 3 * 8, 52 2 * 8, 53 1 * 8, 54 0 * 8, /* ... %r15 */ 55 17 * 8, /* %rip */ 56 19 * 8, /* %eflags */ 57 18 * 8, /* %cs */ 58 21 * 8, /* %ss */ 59 25 * 8, /* %ds */ 60 24 * 8, /* %es */ 61 22 * 8, /* %fs */ 62 23 * 8 /* %gs */ 63 }; 64 65 66 /* Solaris doesn't have a 'struct sigcontext', but it does have a 67 'mcontext_t' that contains the saved set of machine registers. */ 68 69 static CORE_ADDR 70 amd64_sol2_mcontext_addr (frame_info_ptr this_frame) 71 { 72 CORE_ADDR sp, ucontext_addr; 73 74 sp = get_frame_register_unsigned (this_frame, AMD64_RSP_REGNUM); 75 ucontext_addr = get_frame_memory_unsigned (this_frame, sp + 8, 8); 76 77 return ucontext_addr + 72; 78 } 79 80 static void 81 amd64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) 82 { 83 i386_gdbarch_tdep *tdep = gdbarch_tdep<i386_gdbarch_tdep> (gdbarch); 84 85 tdep->gregset_reg_offset = amd64_sol2_gregset_reg_offset; 86 tdep->gregset_num_regs = ARRAY_SIZE (amd64_sol2_gregset_reg_offset); 87 tdep->sizeof_gregset = 28 * 8; 88 89 amd64_init_abi (info, gdbarch, 90 amd64_target_description (X86_XSTATE_SSE_MASK, true)); 91 92 sol2_init_abi (info, gdbarch); 93 94 tdep->sigtramp_p = sol2_sigtramp_p; 95 tdep->sigcontext_addr = amd64_sol2_mcontext_addr; 96 tdep->sc_reg_offset = tdep->gregset_reg_offset; 97 tdep->sc_num_regs = tdep->gregset_num_regs; 98 99 /* Solaris uses SVR4-style shared libraries. */ 100 set_solib_svr4_fetch_link_map_offsets 101 (gdbarch, svr4_lp64_fetch_link_map_offsets); 102 } 103 104 void _initialize_amd64_sol2_tdep (); 105 void 106 _initialize_amd64_sol2_tdep () 107 { 108 gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, 109 GDB_OSABI_SOLARIS, amd64_sol2_init_abi); 110 } 111