forked from OSchip/llvm-project
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/* ===-- 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.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*
|
|
* This file defines macros for use in libUnwind assembler source.
|
|
* This file is not part of the interface of this library.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#ifndef UNWIND_ASSEMBLY_H
|
|
#define UNWIND_ASSEMBLY_H
|
|
|
|
#if defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__)
|
|
#define SEPARATOR @
|
|
#elif defined(__arm64__)
|
|
#define SEPARATOR %%
|
|
#else
|
|
#define SEPARATOR ;
|
|
#endif
|
|
|
|
#if defined(__APPLE__)
|
|
#define HIDDEN_DIRECTIVE .private_extern
|
|
#else
|
|
#define HIDDEN_DIRECTIVE .hidden
|
|
#endif
|
|
|
|
#define GLUE2(a, b) a ## b
|
|
#define GLUE(a, b) GLUE2(a, b)
|
|
#define SYMBOL_NAME(name) GLUE(__USER_LABEL_PREFIX__, name)
|
|
|
|
#if defined(__APPLE__)
|
|
#define SYMBOL_IS_FUNC(name)
|
|
#elif defined(__ELF__)
|
|
#if defined(__arm__)
|
|
#define SYMBOL_IS_FUNC(name) .type name,%function
|
|
#else
|
|
#define SYMBOL_IS_FUNC(name) .type name,@function
|
|
#endif
|
|
#else
|
|
#define SYMBOL_IS_FUNC(name) \
|
|
.def name SEPARATOR \
|
|
.scl 2 SEPARATOR \
|
|
.type 32 SEPARATOR \
|
|
.endef
|
|
#endif
|
|
|
|
#define DEFINE_LIBUNWIND_FUNCTION(name) \
|
|
.globl SYMBOL_NAME(name) SEPARATOR \
|
|
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
|
|
SYMBOL_NAME(name):
|
|
|
|
#define DEFINE_LIBUNWIND_PRIVATE_FUNCTION(name) \
|
|
.globl SYMBOL_NAME(name) SEPARATOR \
|
|
HIDDEN_DIRECTIVE SYMBOL_NAME(name) SEPARATOR \
|
|
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
|
|
SYMBOL_NAME(name):
|
|
|
|
#if defined(__arm__)
|
|
#if !defined(__ARM_ARCH)
|
|
#define __ARM_ARCH 4
|
|
#endif
|
|
|
|
#if defined(__ARM_ARCH_4T__) || __ARM_ARCH >= 5
|
|
#define ARM_HAS_BX
|
|
#endif
|
|
|
|
#ifdef ARM_HAS_BX
|
|
#define JMP(r) bx r
|
|
#else
|
|
#define JMP(r) mov pc, r
|
|
#endif
|
|
#endif /* __arm__ */
|
|
|
|
#endif /* UNWIND_ASSEMBLY_H */
|