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__ 66