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gcc/libsanitizer/builtins/assembly.h
Jakub Jelinek 5d3805fca3 ubsan.c (ubsan_expand_null_ifn): Use _v1 suffixed type mismatch builtins... 
* ubsan.c (ubsan_expand_null_ifn): Use _v1 suffixed type mismatch
	builtins, store max (log2 (align), 0) into uchar field instead of
	align into uptr field.
	(ubsan_expand_objsize_ifn): Use _v1 suffixed type mismatch builtins,
	store uchar 0 field instead of uptr 0 field.
	(instrument_nonnull_return): Use _v1 suffixed nonnull return builtin,
	instead of passing one address of struct with 2 locations pass
	two addresses of structs with 1 location each.
	* sanitizer.def (BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH,
	BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_ABORT,
	BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN,
	BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_ABORT): Removed.
	(BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_V1,
	BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_V1_ABORT,
	BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_V1,
	BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_V1_ABORT): New builtins.

	* c-c++-common/ubsan/float-cast-overflow-1.c: Drop value keyword
	from expected output regexps.
	* c-c++-common/ubsan/float-cast-overflow-2.c: Likewise.
	* c-c++-common/ubsan/float-cast-overflow-3.c: Likewise.
	* c-c++-common/ubsan/float-cast-overflow-4.c: Likewise.
	* c-c++-common/ubsan/float-cast-overflow-5.c: Likewise.
	* c-c++-common/ubsan/float-cast-overflow-6.c: Likewise.
	* c-c++-common/ubsan/float-cast-overflow-8.c: Likewise.
	* c-c++-common/ubsan/float-cast-overflow-9.c: Likewise.
	* c-c++-common/ubsan/float-cast-overflow-10.c: Likewise.
	* g++.dg/ubsan/float-cast-overflow-bf.C: Likewise.
	* gcc.dg/ubsan/float-cast-overflow-bf.c: Likewise.
	* g++.dg/asan/default-options-1.C (__asan_default_options): Add
	used attribute.
	* g++.dg/asan/asan_test.C: Run with ASAN_OPTIONS=handle_segv=2
	in the environment.

	* All source files: Merge from upstream 315899.
        * asan/Makefile.am (nodist_saninclude_HEADERS): Add
	include/sanitizer/tsan_interface.h.
        * asan/libtool-version: Bump the libasan SONAME.
	* lsan/Makefile.am (sanitizer_lsan_files): Add lsan_common_mac.cc.
	(lsan_files): Add lsan_linux.cc, lsan_mac.cc and lsan_malloc_mac.cc.
        * sanitizer_common/Makefile.am (sanitizer_common_files): Add
	sancov_flags.cc, sanitizer_allocator_checks.cc,
	sanitizer_coverage_libcdep_new.cc, sanitizer_errno.cc,
	sanitizer_file.cc, sanitizer_mac_libcdep.cc and
	sanitizer_stoptheworld_mac.cc.  Remove sanitizer_coverage_libcdep.cc
	and sanitizer_coverage_mapping_libcdep.cc.
        * tsan/Makefile.am (tsan_files): Add tsan_external.cc.
	* ubsan/Makefile.am (DEFS): Add -DUBSAN_CAN_USE_CXXABI=1.
	(ubsan_files): Add ubsan_init_standalone.cc and
	ubsan_signals_standalone.cc.
	* ubsan/libtool-version: Bump the libubsan SONAME.
        * asan/Makefile.in: Regenerate.
        * lsan/Makefile.in: Regenerate.
        * sanitizer_common/Makefile.in: Regenerate.
        * tsan/Makefile.in: Regenerate.
	* ubsan/Makefile.in: Regenerate.

From-SVN: r253887
2017-10-19 13:23:59 +02:00

205 lines
7.1 KiB
C
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/* ===-- assembly.h - compiler-rt 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 compiler-rt assembler source.
* This file is not part of the interface of this library.
*
* ===----------------------------------------------------------------------===
*/
#ifndef COMPILERRT_ASSEMBLY_H
#define COMPILERRT_ASSEMBLY_H
#if defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__)
#define SEPARATOR @
#else
#define SEPARATOR ;
#endif
#if defined(__APPLE__)
#define HIDDEN(name) .private_extern name
#define LOCAL_LABEL(name) L_##name
// tell linker it can break up file at label boundaries
#define FILE_LEVEL_DIRECTIVE .subsections_via_symbols
#define SYMBOL_IS_FUNC(name)
#define CONST_SECTION .const
#define NO_EXEC_STACK_DIRECTIVE
#elif defined(__ELF__)
#define HIDDEN(name) .hidden name
#define LOCAL_LABEL(name) .L_##name
#define FILE_LEVEL_DIRECTIVE
#if defined(__arm__)
#define SYMBOL_IS_FUNC(name) .type name,%function
#else
#define SYMBOL_IS_FUNC(name) .type name,@function
#endif
#define CONST_SECTION .section .rodata
#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
#else // !__APPLE__ && !__ELF__
#define HIDDEN(name)
#define LOCAL_LABEL(name) .L ## name
#define FILE_LEVEL_DIRECTIVE
#define SYMBOL_IS_FUNC(name) \
.def name SEPARATOR \
.scl 2 SEPARATOR \
.type 32 SEPARATOR \
.endef
#define CONST_SECTION .section .rdata,"rd"
#define NO_EXEC_STACK_DIRECTIVE
#endif
#if defined(__arm__)
/*
* Determine actual [ARM][THUMB[1][2]] ISA using compiler predefined macros:
* - for '-mthumb -march=armv6' compiler defines '__thumb__'
* - for '-mthumb -march=armv7' compiler defines '__thumb__' and '__thumb2__'
*/
#if defined(__thumb2__) || defined(__thumb__)
#define DEFINE_CODE_STATE .thumb SEPARATOR
#define DECLARE_FUNC_ENCODING .thumb_func SEPARATOR
#if defined(__thumb2__)
#define USE_THUMB_2
#define IT(cond) it cond
#define ITT(cond) itt cond
#define ITE(cond) ite cond
#else
#define USE_THUMB_1
#define IT(cond)
#define ITT(cond)
#define ITE(cond)
#endif // defined(__thumb__2)
#else // !defined(__thumb2__) && !defined(__thumb__)
#define DEFINE_CODE_STATE .arm SEPARATOR
#define DECLARE_FUNC_ENCODING
#define IT(cond)
#define ITT(cond)
#define ITE(cond)
#endif
#if defined(USE_THUMB_1) && defined(USE_THUMB_2)
#error "USE_THUMB_1 and USE_THUMB_2 can't be defined together."
#endif
#if defined(__ARM_ARCH_4T__) || __ARM_ARCH >= 5
#define ARM_HAS_BX
#endif
#if !defined(__ARM_FEATURE_CLZ) && !defined(USE_THUMB_1) && \
(__ARM_ARCH >= 6 || (__ARM_ARCH == 5 && !defined(__ARM_ARCH_5__)))
#define __ARM_FEATURE_CLZ
#endif
#ifdef ARM_HAS_BX
#define JMP(r) bx r
#define JMPc(r, c) bx##c r
#else
#define JMP(r) mov pc, r
#define JMPc(r, c) mov##c pc, r
#endif
// pop {pc} can't switch Thumb mode on ARMv4T
#if __ARM_ARCH >= 5
#define POP_PC() pop {pc}
#else
#define POP_PC() \
pop {ip}; \
JMP(ip)
#endif
#if defined(USE_THUMB_2)
#define WIDE(op) op.w
#else
#define WIDE(op) op
#endif
#else // !defined(__arm)
#define DECLARE_FUNC_ENCODING
#define DEFINE_CODE_STATE
#endif
#define GLUE2(a, b) a##b
#define GLUE(a, b) GLUE2(a, b)
#define SYMBOL_NAME(name) GLUE(__USER_LABEL_PREFIX__, name)
#ifdef VISIBILITY_HIDDEN
#define DECLARE_SYMBOL_VISIBILITY(name) \
HIDDEN(SYMBOL_NAME(name)) SEPARATOR
#else
#define DECLARE_SYMBOL_VISIBILITY(name)
#endif
#define DEFINE_COMPILERRT_FUNCTION(name) \
DEFINE_CODE_STATE \
FILE_LEVEL_DIRECTIVE SEPARATOR \
.globl SYMBOL_NAME(name) SEPARATOR \
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
DECLARE_SYMBOL_VISIBILITY(name) \
DECLARE_FUNC_ENCODING \
SYMBOL_NAME(name):
#define DEFINE_COMPILERRT_THUMB_FUNCTION(name) \
DEFINE_CODE_STATE \
FILE_LEVEL_DIRECTIVE SEPARATOR \
.globl SYMBOL_NAME(name) SEPARATOR \
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
DECLARE_SYMBOL_VISIBILITY(name) SEPARATOR \
.thumb_func SEPARATOR \
SYMBOL_NAME(name):
#define DEFINE_COMPILERRT_PRIVATE_FUNCTION(name) \
DEFINE_CODE_STATE \
FILE_LEVEL_DIRECTIVE SEPARATOR \
.globl SYMBOL_NAME(name) SEPARATOR \
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
HIDDEN(SYMBOL_NAME(name)) SEPARATOR \
DECLARE_FUNC_ENCODING \
SYMBOL_NAME(name):
#define DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(name) \
DEFINE_CODE_STATE \
.globl name SEPARATOR \
SYMBOL_IS_FUNC(name) SEPARATOR \
HIDDEN(name) SEPARATOR \
DECLARE_FUNC_ENCODING \
name:
#define DEFINE_COMPILERRT_FUNCTION_ALIAS(name, target) \
.globl SYMBOL_NAME(name) SEPARATOR \
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
DECLARE_SYMBOL_VISIBILITY(SYMBOL_NAME(name)) SEPARATOR \
.set SYMBOL_NAME(name), SYMBOL_NAME(target) SEPARATOR
#if defined(__ARM_EABI__)
#define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name) \
DEFINE_COMPILERRT_FUNCTION_ALIAS(aeabi_name, name)
#else
#define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name)
#endif
#ifdef __ELF__
#define END_COMPILERRT_FUNCTION(name) \
.size SYMBOL_NAME(name), . - SYMBOL_NAME(name)
#else
#define END_COMPILERRT_FUNCTION(name)
#endif
#endif /* COMPILERRT_ASSEMBLY_H */
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