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/* ===-- 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(__powerpc64__)
#define SEPARATOR ;
#define PPC64_OFFS_SRR0 0
#define PPC64_OFFS_CR 272
#define PPC64_OFFS_XER 280
#define PPC64_OFFS_LR 288
#define PPC64_OFFS_CTR 296
#define PPC64_OFFS_VRSAVE 304
#define PPC64_OFFS_FP 312
#define PPC64_OFFS_V 824
#ifdef _ARCH_PWR8
#define PPC64_HAS_VMX
#endif
#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)
#if defined(__APPLE__)
#define SYMBOL_IS_FUNC(name)
#define EXPORT_SYMBOL(name)
#define HIDDEN_SYMBOL(name) .private_extern name
#define NO_EXEC_STACK_DIRECTIVE
#elif defined(__ELF__)
#if defined(__arm__)
#define SYMBOL_IS_FUNC(name) .type name,%function
#else
#define SYMBOL_IS_FUNC(name) .type name,@function
#endif
#define EXPORT_SYMBOL(name)
#define HIDDEN_SYMBOL(name) .hidden name
#if defined(__GNU__) || defined(__FreeBSD__) || defined(__Fuchsia__) || \
defined(__linux__)
#define NO_EXEC_STACK_DIRECTIVE .section .note.GNU-stack,"",%progbits
#else
#define NO_EXEC_STACK_DIRECTIVE
#endif
#elif defined(_WIN32)
#define SYMBOL_IS_FUNC(name) \
.def name SEPARATOR \
.scl 2 SEPARATOR \
.type 32 SEPARATOR \
.endef
#define EXPORT_SYMBOL2(name) \
.section .drectve,"yn" SEPARATOR \
.ascii "-export:", #name, "\0" SEPARATOR \
.text
#if defined(_LIBUNWIND_DISABLE_VISIBILITY_ANNOTATIONS)
#define EXPORT_SYMBOL(name)
#else
#define EXPORT_SYMBOL(name) EXPORT_SYMBOL2(name)
#endif
#define HIDDEN_SYMBOL(name)
#define NO_EXEC_STACK_DIRECTIVE
#elif defined(__sparc__)
#else
#error Unsupported target
#endif
#define DEFINE_LIBUNWIND_FUNCTION(name) \
.globl SYMBOL_NAME(name) SEPARATOR \
EXPORT_SYMBOL(name) SEPARATOR \
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
PPC64_OPD1 \
SYMBOL_NAME(name): \
PPC64_OPD2
#define DEFINE_LIBUNWIND_PRIVATE_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)
#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 */
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