libunwind/src/libunwind_ext.h

   1 //===------------------------ libunwind_ext.h -----------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //
   8 //  Extensions to libunwind API.
   9 //
  10 //===----------------------------------------------------------------------===//
  11
  12 #ifndef __LIBUNWIND_EXT__
  13 #define __LIBUNWIND_EXT__
  14
  15 #include "config.h"
  16 #include <libunwind.h>
  17 #include <unwind.h>
  18
  19 #define UNW_STEP_SUCCESS 1
  20 #define UNW_STEP_END     0
  21
  22 #ifdef __cplusplus
  23 extern "C" {
  24 #endif
  25
  26 extern int __unw_getcontext(unw_context_t *);
  27 extern int __unw_init_local(unw_cursor_t *, unw_context_t *);
  28 extern int __unw_step(unw_cursor_t *);
  29 extern int __unw_get_reg(unw_cursor_t *, unw_regnum_t, unw_word_t *);
  30 extern int __unw_get_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t *);
  31 extern int __unw_set_reg(unw_cursor_t *, unw_regnum_t, unw_word_t);
  32 extern int __unw_set_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t);
  33 extern int __unw_resume(unw_cursor_t *);
  34
  35 #ifdef __arm__
  36 /* Save VFP registers in FSTMX format (instead of FSTMD). */
  37 extern void __unw_save_vfp_as_X(unw_cursor_t *);
  38 #endif
  39
  40 extern const char *__unw_regname(unw_cursor_t *, unw_regnum_t);
  41 extern int __unw_get_proc_info(unw_cursor_t *, unw_proc_info_t *);
  42 extern int __unw_is_fpreg(unw_cursor_t *, unw_regnum_t);
  43 extern int __unw_is_signal_frame(unw_cursor_t *);
  44 extern int __unw_get_proc_name(unw_cursor_t *, char *, size_t, unw_word_t *);
  45
  46 // SPI
  47 extern void __unw_iterate_dwarf_unwind_cache(void (*func)(
  48     unw_word_t ip_start, unw_word_t ip_end, unw_word_t fde, unw_word_t mh));
  49
  50 // IPI
  51 extern void __unw_add_dynamic_fde(unw_word_t fde);
  52 extern void __unw_remove_dynamic_fde(unw_word_t fde);
  53
  54 #if defined(_LIBUNWIND_ARM_EHABI)
  55 extern const uint32_t* decode_eht_entry(const uint32_t*, size_t*, size_t*);
  56 extern _Unwind_Reason_Code _Unwind_VRS_Interpret(_Unwind_Context *context,
  57                                                  const uint32_t *data,
  58                                                  size_t offset, size_t len);
  59 #endif
  60
  61 #ifdef __cplusplus
  62 }
  63 #endif
  64
  65 #endif // __LIBUNWIND_EXT__