1 /* libunwind - a platform-independent unwind library 2 Copyright (C) 2002, 2005 Hewlett-Packard Co 3 Contributed by David Mosberger-Tang <davidm@hpl.hp.com> 4 5 Modified for x86_64 by Max Asbock <masbock@us.ibm.com> 6 7 This file is part of libunwind. 8 9 Permission is hereby granted, free of charge, to any person obtaining 10 a copy of this software and associated documentation files (the 11 "Software"), to deal in the Software without restriction, including 12 without limitation the rights to use, copy, modify, merge, publish, 13 distribute, sublicense, and/or sell copies of the Software, and to 14 permit persons to whom the Software is furnished to do so, subject to 15 the following conditions: 16 17 The above copyright notice and this permission notice shall be 18 included in all copies or substantial portions of the Software. 19 20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 23 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 27 28 #ifndef unwind_i_h 29 #define unwind_i_h 30 31 #include <stdint.h> 32 33 #include <libunwind-x86_64.h> 34 35 #include "libunwind_i.h" 36 #include <sys/ucontext.h> 37 38 /* DWARF column numbers for x86_64: */ 39 #define RAX 0 40 #define RDX 1 41 #define RCX 2 42 #define RBX 3 43 #define RSI 4 44 #define RDI 5 45 #define RBP 6 46 #define RSP 7 47 #define R8 8 48 #define R9 9 49 #define R10 10 50 #define R11 11 51 #define R12 12 52 #define R13 13 53 #define R14 14 54 #define R15 15 55 #define RIP 16 56 57 #define x86_64_lock UNW_OBJ(lock) 58 #define x86_64_local_resume UNW_OBJ(local_resume) 59 #define x86_64_local_addr_space_init UNW_OBJ(local_addr_space_init) 60 #define setcontext UNW_ARCH_OBJ (setcontext) 61 #if 0 62 #define x86_64_scratch_loc UNW_OBJ(scratch_loc) 63 #endif 64 #define x86_64_r_uc_addr UNW_OBJ(r_uc_addr) 65 #define x86_64_sigreturn UNW_OBJ(sigreturn) 66 67 /* By-pass calls to access_mem() when known to be safe. */ 68 #ifdef UNW_LOCAL_ONLY 69 # undef ACCESS_MEM_FAST 70 # define ACCESS_MEM_FAST(ret,validate,cur,addr,to) \ 71 do { \ 72 if (unlikely(validate)) \ 73 (ret) = dwarf_get ((cur), DWARF_MEM_LOC ((cur), (addr)), &(to)); \ 74 else \ 75 (ret) = 0, (to) = *(unw_word_t *)(addr); \ 76 } while (0) 77 #endif 78 79 extern void x86_64_local_addr_space_init (void); 80 extern int x86_64_local_resume (unw_addr_space_t as, unw_cursor_t *cursor, 81 void *arg); 82 extern int setcontext (const ucontext_t *ucp); 83 84 #if 0 85 extern dwarf_loc_t x86_64_scratch_loc (struct cursor *c, unw_regnum_t reg); 86 #endif 87 88 extern void *x86_64_r_uc_addr (ucontext_t *uc, int reg); 89 extern NORETURN void x86_64_sigreturn (unw_cursor_t *cursor); 90 91 #endif /* unwind_i_h */ 92