1*0b57cec5SDimitry Andric //===--------------------- Unwind_AppleExtras.cpp -------------------------===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric // 8*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 9*0b57cec5SDimitry Andric 10*0b57cec5SDimitry Andric #include "config.h" 11*0b57cec5SDimitry Andric 12*0b57cec5SDimitry Andric 13*0b57cec5SDimitry Andric // static linker symbols to prevent wrong two level namespace for _Unwind symbols 14*0b57cec5SDimitry Andric #if defined(__arm__) 15*0b57cec5SDimitry Andric #define NOT_HERE_BEFORE_5_0(sym) \ 16*0b57cec5SDimitry Andric extern const char sym##_tmp30 __asm("$ld$hide$os3.0$_" #sym ); \ 17*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp30 = 0; \ 18*0b57cec5SDimitry Andric extern const char sym##_tmp31 __asm("$ld$hide$os3.1$_" #sym ); \ 19*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp31 = 0; \ 20*0b57cec5SDimitry Andric extern const char sym##_tmp32 __asm("$ld$hide$os3.2$_" #sym );\ 21*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp32 = 0; \ 22*0b57cec5SDimitry Andric extern const char sym##_tmp40 __asm("$ld$hide$os4.0$_" #sym ); \ 23*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp40 = 0; \ 24*0b57cec5SDimitry Andric extern const char sym##_tmp41 __asm("$ld$hide$os4.1$_" #sym ); \ 25*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp41 = 0; \ 26*0b57cec5SDimitry Andric extern const char sym##_tmp42 __asm("$ld$hide$os4.2$_" #sym ); \ 27*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp42 = 0; \ 28*0b57cec5SDimitry Andric extern const char sym##_tmp43 __asm("$ld$hide$os4.3$_" #sym ); \ 29*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp43 = 0; 305ffd83dbSDimitry Andric #elif defined(__aarch64__) 31*0b57cec5SDimitry Andric #define NOT_HERE_BEFORE_10_6(sym) 32*0b57cec5SDimitry Andric #define NEVER_HERE(sym) 33*0b57cec5SDimitry Andric #else 34*0b57cec5SDimitry Andric #define NOT_HERE_BEFORE_10_6(sym) \ 35*0b57cec5SDimitry Andric extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); \ 36*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp4 = 0; \ 37*0b57cec5SDimitry Andric extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); \ 38*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp5 = 0; 39*0b57cec5SDimitry Andric #define NEVER_HERE(sym) \ 40*0b57cec5SDimitry Andric extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); \ 41*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp4 = 0; \ 42*0b57cec5SDimitry Andric extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); \ 43*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp5 = 0; \ 44*0b57cec5SDimitry Andric extern const char sym##_tmp6 __asm("$ld$hide$os10.6$_" #sym ); \ 45*0b57cec5SDimitry Andric __attribute__((visibility("default"))) const char sym##_tmp6 = 0; 46*0b57cec5SDimitry Andric #endif 47*0b57cec5SDimitry Andric 48*0b57cec5SDimitry Andric 49*0b57cec5SDimitry Andric #if defined(_LIBUNWIND_BUILD_ZERO_COST_APIS) 50*0b57cec5SDimitry Andric 51*0b57cec5SDimitry Andric // 52*0b57cec5SDimitry Andric // symbols in libSystem.dylib in 10.6 and later, but are in libgcc_s.dylib in 53*0b57cec5SDimitry Andric // earlier versions 54*0b57cec5SDimitry Andric // 55*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_DeleteException) 56*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_Find_FDE) 57*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_ForcedUnwind) 58*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_GetGR) 59*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_GetIP) 60*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_GetLanguageSpecificData) 61*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_GetRegionStart) 62*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_RaiseException) 63*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_Resume) 64*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_SetGR) 65*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_SetIP) 66*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_Backtrace) 67*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_FindEnclosingFunction) 68*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_GetCFA) 69*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_GetDataRelBase) 70*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_GetTextRelBase) 71*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_Resume_or_Rethrow) 72*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(_Unwind_GetIPInfo) 73*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(__register_frame) 74*0b57cec5SDimitry Andric NOT_HERE_BEFORE_10_6(__deregister_frame) 75*0b57cec5SDimitry Andric 76*0b57cec5SDimitry Andric // 77*0b57cec5SDimitry Andric // symbols in libSystem.dylib for compatibility, but we don't want any new code 78*0b57cec5SDimitry Andric // using them 79*0b57cec5SDimitry Andric // 80*0b57cec5SDimitry Andric NEVER_HERE(__register_frame_info_bases) 81*0b57cec5SDimitry Andric NEVER_HERE(__register_frame_info) 82*0b57cec5SDimitry Andric NEVER_HERE(__register_frame_info_table_bases) 83*0b57cec5SDimitry Andric NEVER_HERE(__register_frame_info_table) 84*0b57cec5SDimitry Andric NEVER_HERE(__register_frame_table) 85*0b57cec5SDimitry Andric NEVER_HERE(__deregister_frame_info) 86*0b57cec5SDimitry Andric NEVER_HERE(__deregister_frame_info_bases) 87*0b57cec5SDimitry Andric 88*0b57cec5SDimitry Andric #endif // defined(_LIBUNWIND_BUILD_ZERO_COST_APIS) 89*0b57cec5SDimitry Andric 90*0b57cec5SDimitry Andric 91*0b57cec5SDimitry Andric 92*0b57cec5SDimitry Andric 93*0b57cec5SDimitry Andric #if defined(_LIBUNWIND_BUILD_SJLJ_APIS) 94*0b57cec5SDimitry Andric // 95*0b57cec5SDimitry Andric // symbols in libSystem.dylib in iOS 5.0 and later, but are in libgcc_s.dylib in 96*0b57cec5SDimitry Andric // earlier versions 97*0b57cec5SDimitry Andric // 98*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_GetLanguageSpecificData) 99*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_GetRegionStart) 100*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_GetIP) 101*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_SetGR) 102*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_SetIP) 103*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_DeleteException) 104*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Register) 105*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_GetGR) 106*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_GetIPInfo) 107*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_GetCFA) 108*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Resume) 109*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_SjLj_RaiseException) 110*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Resume_or_Rethrow) 111*0b57cec5SDimitry Andric NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Unregister) 112*0b57cec5SDimitry Andric 113*0b57cec5SDimitry Andric #endif // defined(_LIBUNWIND_BUILD_SJLJ_APIS) 114