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 23extern "C" { 24#endif 25 26extern int __unw_getcontext(unw_context_t *); 27extern int __unw_init_local(unw_cursor_t *, unw_context_t *); 28extern int __unw_step(unw_cursor_t *); 29extern int __unw_get_reg(unw_cursor_t *, unw_regnum_t, unw_word_t *); 30extern int __unw_get_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t *); 31extern int __unw_set_reg(unw_cursor_t *, unw_regnum_t, unw_word_t); 32extern int __unw_set_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t); 33extern int __unw_resume(unw_cursor_t *); 34 35#ifdef __arm__ 36/* Save VFP registers in FSTMX format (instead of FSTMD). */ 37extern void __unw_save_vfp_as_X(unw_cursor_t *); 38#endif 39 40extern const char *__unw_regname(unw_cursor_t *, unw_regnum_t); 41extern int __unw_get_proc_info(unw_cursor_t *, unw_proc_info_t *); 42extern int __unw_is_fpreg(unw_cursor_t *, unw_regnum_t); 43extern int __unw_is_signal_frame(unw_cursor_t *); 44extern int __unw_get_proc_name(unw_cursor_t *, char *, size_t, unw_word_t *); 45 46// SPI 47extern 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 51extern void __unw_add_dynamic_fde(unw_word_t fde); 52extern void __unw_remove_dynamic_fde(unw_word_t fde); 53 54#if defined(_LIBUNWIND_ARM_EHABI) 55extern const uint32_t* decode_eht_entry(const uint32_t*, size_t*, size_t*); 56extern _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__ 66