src/libs/libunwind/x86_64/unwind_i.h

   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 #ifndef __HAIKU__
  37 # include <sys/ucontext.h>
  38 #endif
  39
  40 /* DWARF column numbers for x86_64: */
  41 #define RAX     0
  42 #define RDX     1
  43 #define RCX     2
  44 #define RBX     3
  45 #define RSI     4
  46 #define RDI     5
  47 #define RBP     6
  48 #define RSP     7
  49 #define R8      8
  50 #define R9      9
  51 #define R10     10
  52 #define R11     11
  53 #define R12     12
  54 #define R13     13
  55 #define R14     14
  56 #define R15     15
  57 #define RIP     16
  58
  59 #define x86_64_lock                     UNW_OBJ(lock)
  60 #define x86_64_local_resume             UNW_OBJ(local_resume)
  61 #define x86_64_local_addr_space_init    UNW_OBJ(local_addr_space_init)
  62 #define setcontext                      UNW_ARCH_OBJ (setcontext)
  63 #if 0
  64 #define x86_64_scratch_loc              UNW_OBJ(scratch_loc)
  65 #endif
  66 #define x86_64_r_uc_addr                UNW_OBJ(r_uc_addr)
  67 #define x86_64_sigreturn                UNW_OBJ(sigreturn)
  68
  69 /* By-pass calls to access_mem() when known to be safe. */
  70 #ifdef UNW_LOCAL_ONLY
  71 # undef ACCESS_MEM_FAST
  72 # define ACCESS_MEM_FAST(ret,validate,cur,addr,to)                     \
  73   do {                                                                 \
  74     if (unlikely(validate))                                            \
  75       (ret) = dwarf_get ((cur), DWARF_MEM_LOC ((cur), (addr)), &(to)); \
  76     else                                                               \
  77       (ret) = 0, (to) = *(unw_word_t *)(addr);                         \
  78   } while (0)
  79 #endif
  80
  81 extern void x86_64_local_addr_space_init (void);
  82 extern int x86_64_local_resume (unw_addr_space_t as, unw_cursor_t *cursor,
  83                              void *arg);
  84 extern int setcontext (const ucontext_t *ucp);
  85
  86 #if 0
  87 extern dwarf_loc_t x86_64_scratch_loc (struct cursor *c, unw_regnum_t reg);
  88 #endif
  89
  90 extern void *x86_64_r_uc_addr (ucontext_t *uc, int reg);
  91 extern NORETURN void x86_64_sigreturn (unw_cursor_t *cursor);
  92
  93 #endif /* unwind_i_h */