forked from OSchip/llvm-project
137 lines
4.0 KiB
C
137 lines
4.0 KiB
C
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/* ===-- assembly.h - compiler-rt assembler support macros -----------------===
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*
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* The LLVM Compiler Infrastructure
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*
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* This file is dual licensed under the MIT and the University of Illinois Open
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* Source Licenses. See LICENSE.TXT for details.
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*
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* ===----------------------------------------------------------------------===
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*
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* This file defines macros for use in compiler-rt assembler source.
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* This file is not part of the interface of this library.
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*
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* ===----------------------------------------------------------------------===
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*/
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#ifndef COMPILERRT_ASSEMBLY_H
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#define COMPILERRT_ASSEMBLY_H
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#if defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__)
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#define SEPARATOR @
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#else
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#define SEPARATOR ;
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#endif
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#if defined(__APPLE__)
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#define HIDDEN_DIRECTIVE .private_extern
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#define LOCAL_LABEL(name) L_##name
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#define FILE_LEVEL_DIRECTIVE .subsections_via_symbols
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#define SYMBOL_IS_FUNC(name)
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#else
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#define HIDDEN_DIRECTIVE .hidden
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#define LOCAL_LABEL(name) .L_##name
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#define FILE_LEVEL_DIRECTIVE
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# if defined(__arm__)
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# define SYMBOL_IS_FUNC(name) .type name, %function
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# else
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# define SYMBOL_IS_FUNC(name) .type name, @function
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# endif
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#endif
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#if defined(__arm__)
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# ifndef __ARM_ARCH
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# if defined (__ARM_ARCH_7__) || defined (__ARM_ARCH_7A__) || \
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defined (__ARM_ARCH_7R__) || defined (__ARM_ARCH_7M__) || \
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defined (__ARM_ARCH_7EM__)
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# define __ARM_ARCH 7
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# endif
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# endif
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# ifndef __ARM_ARCH
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# if defined (__ARM_ARCH_6__) || \
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defined (__ARM_ARCH_6J__) || defined (__ARM_ARCH_6K__) || \
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defined (__ARM_ARCH_6Z__) || defined (__ARM_ARCH_6ZK__) || \
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defined (__ARM_ARCH_6ZM__)
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# define __ARM_ARCH 6
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# endif
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# endif
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# ifndef __ARM_ARCH
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# if defined (__ARM_ARCH_5__) || defined (__ARM_ARCH_5T__) || \
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defined (__ARM_ARCH_5TE__) || defined (__ARM_ARCH_5TEJ__)
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# define __ARM_ARCH 5
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# endif
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# endif
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# ifndef __ARM_ARCH
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# define __ARM_ARCH 4
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# endif
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# if defined(__ARM_ARCH_4T__) || __ARM_ARCH >= 5
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# define ARM_HAS_BX
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# endif
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# if !defined(__ARM_FEATURE_CLZ) && \
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(__ARM_ARCH >= 6 || (__ARM_ARCH == 5 && !defined(__ARM_ARCH_5__)))
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# define __ARM_FEATURE_CLZ
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# endif
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# ifdef ARM_HAS_BX
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# define JMP(r) bx r
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# define JMPc(r,c) bx##c r
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# else
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# define JMP(r) mov pc, r
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# define JMPc(r,c) mov##c pc, r
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# endif
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#endif
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#define GLUE2(a, b) a ## b
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#define GLUE(a, b) GLUE2(a, b)
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#define SYMBOL_NAME(name) GLUE(__USER_LABEL_PREFIX__, name)
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#ifdef VISIBILITY_HIDDEN
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#define DECLARE_SYMBOL_VISIBILITY(name) \
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HIDDEN_DIRECTIVE SYMBOL_NAME(name) SEPARATOR
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#else
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#define DECLARE_SYMBOL_VISIBILITY(name)
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#endif
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#define DEFINE_COMPILERRT_FUNCTION(name) \
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FILE_LEVEL_DIRECTIVE SEPARATOR \
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.globl SYMBOL_NAME(name) SEPARATOR \
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SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
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DECLARE_SYMBOL_VISIBILITY(name) \
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SYMBOL_NAME(name):
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#define DEFINE_COMPILERRT_PRIVATE_FUNCTION(name) \
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.globl SYMBOL_NAME(name) SEPARATOR \
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SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
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HIDDEN_DIRECTIVE SYMBOL_NAME(name) SEPARATOR \
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SYMBOL_NAME(name):
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#define DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(name) \
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.globl name SEPARATOR \
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SYMBOL_IS_FUNC(name) SEPARATOR \
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HIDDEN_DIRECTIVE name SEPARATOR \
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name:
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#define DEFINE_COMPILERRT_FUNCTION_ALIAS(name, target) \
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.globl SYMBOL_NAME(name) SEPARATOR \
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SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
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.set SYMBOL_NAME(name), SYMBOL_NAME(target) SEPARATOR
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#if defined (__ARM_EABI__)
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# define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name) \
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DEFINE_COMPILERRT_FUNCTION_ALIAS(aeabi_name, name)
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#else
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# define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name)
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#endif
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#ifdef __ELF__
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#define END_COMPILERRT_FUNCTION(name) \
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.size SYMBOL_NAME(name), . - SYMBOL_NAME(name)
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#else
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#define END_COMPILERRT_FUNCTION(name)
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#endif
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#endif /* COMPILERRT_ASSEMBLY_H */
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