diff options
Diffstat (limited to 'src/assembly.h')
| -rw-r--r-- | src/assembly.h | 74 |
1 files changed, 54 insertions, 20 deletions
diff --git a/src/assembly.h b/src/assembly.h index 2df930214fae..7132b6c561b0 100644 --- a/src/assembly.h +++ b/src/assembly.h @@ -1,9 +1,8 @@ /* ===-- assembly.h - libUnwind assembler support macros -------------------=== * - * The LLVM Compiler Infrastructure - * - * This file is dual licensed under the MIT and the University of Illinois Open - * Source Licenses. See LICENSE.TXT for details. + * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. + * See https://llvm.org/LICENSE.txt for license information. + * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception * * ===----------------------------------------------------------------------=== * @@ -29,14 +28,26 @@ #ifdef _ARCH_PWR8 #define PPC64_HAS_VMX #endif -#elif defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__) -#define SEPARATOR @ #elif defined(__arm64__) #define SEPARATOR %% #else #define SEPARATOR ; #endif +#if defined(__powerpc64__) && (!defined(_CALL_ELF) || _CALL_ELF == 1) +#define PPC64_OPD1 .section .opd,"aw",@progbits SEPARATOR +#define PPC64_OPD2 SEPARATOR \ + .p2align 3 SEPARATOR \ + .quad .Lfunc_begin0 SEPARATOR \ + .quad .TOC.@tocbase SEPARATOR \ + .quad 0 SEPARATOR \ + .text SEPARATOR \ +.Lfunc_begin0: +#else +#define PPC64_OPD1 +#define PPC64_OPD2 +#endif + #define GLUE2(a, b) a ## b #define GLUE(a, b) GLUE2(a, b) #define SYMBOL_NAME(name) GLUE(__USER_LABEL_PREFIX__, name) @@ -46,6 +57,12 @@ #define SYMBOL_IS_FUNC(name) #define EXPORT_SYMBOL(name) #define HIDDEN_SYMBOL(name) .private_extern name +#define WEAK_SYMBOL(name) .weak_reference name +#define WEAK_ALIAS(name, aliasname) \ + .globl SYMBOL_NAME(aliasname) SEPARATOR \ + WEAK_SYMBOL(aliasname) SEPARATOR \ + SYMBOL_NAME(aliasname) = SYMBOL_NAME(name) + #define NO_EXEC_STACK_DIRECTIVE #elif defined(__ELF__) @@ -57,6 +74,10 @@ #endif #define EXPORT_SYMBOL(name) #define HIDDEN_SYMBOL(name) .hidden name +#define WEAK_SYMBOL(name) .weak name +#define WEAK_ALIAS(name, aliasname) \ + WEAK_SYMBOL(aliasname) SEPARATOR \ + SYMBOL_NAME(aliasname) = SYMBOL_NAME(name) #if defined(__GNU__) || defined(__FreeBSD__) || defined(__Fuchsia__) || \ defined(__linux__) @@ -72,9 +93,9 @@ .scl 2 SEPARATOR \ .type 32 SEPARATOR \ .endef -#define EXPORT_SYMBOL2(name) \ - .section .drectve,"yn" SEPARATOR \ - .ascii "-export:", #name, "\0" SEPARATOR \ +#define EXPORT_SYMBOL2(name) \ + .section .drectve,"yn" SEPARATOR \ + .ascii "-export:", #name, "\0" SEPARATOR \ .text #if defined(_LIBUNWIND_DISABLE_VISIBILITY_ANNOTATIONS) #define EXPORT_SYMBOL(name) @@ -83,6 +104,23 @@ #endif #define HIDDEN_SYMBOL(name) +#if defined(__MINGW32__) +#define WEAK_ALIAS(name, aliasname) \ + .globl SYMBOL_NAME(aliasname) SEPARATOR \ + EXPORT_SYMBOL(aliasname) SEPARATOR \ + SYMBOL_NAME(aliasname) = SYMBOL_NAME(name) +#else +#define WEAK_ALIAS3(name, aliasname) \ + .section .drectve,"yn" SEPARATOR \ + .ascii "-alternatename:", #aliasname, "=", #name, "\0" SEPARATOR \ + .text +#define WEAK_ALIAS2(name, aliasname) \ + WEAK_ALIAS3(name, aliasname) +#define WEAK_ALIAS(name, aliasname) \ + EXPORT_SYMBOL(SYMBOL_NAME(aliasname)) SEPARATOR \ + WEAK_ALIAS2(SYMBOL_NAME(name), SYMBOL_NAME(aliasname)) +#endif + #define NO_EXEC_STACK_DIRECTIVE #elif defined(__sparc__) @@ -93,17 +131,13 @@ #endif -#define DEFINE_LIBUNWIND_FUNCTION(name) \ - .globl SYMBOL_NAME(name) SEPARATOR \ - EXPORT_SYMBOL(name) SEPARATOR \ - SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \ - SYMBOL_NAME(name): - -#define DEFINE_LIBUNWIND_PRIVATE_FUNCTION(name) \ - .globl SYMBOL_NAME(name) SEPARATOR \ - HIDDEN_SYMBOL(SYMBOL_NAME(name)) SEPARATOR \ - SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \ - SYMBOL_NAME(name): +#define DEFINE_LIBUNWIND_FUNCTION(name) \ + .globl SYMBOL_NAME(name) SEPARATOR \ + HIDDEN_SYMBOL(SYMBOL_NAME(name)) SEPARATOR \ + SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \ + PPC64_OPD1 \ + SYMBOL_NAME(name): \ + PPC64_OPD2 #if defined(__arm__) #if !defined(__ARM_ARCH) |