5d3805fca3
* 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
285 lines
7.9 KiB
C++
285 lines
7.9 KiB
C++
//===-- sanitizer_platform.h ------------------------------------*- C++ -*-===//
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Common platform macros.
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//===----------------------------------------------------------------------===//
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#ifndef SANITIZER_PLATFORM_H
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#define SANITIZER_PLATFORM_H
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#if !defined(__linux__) && !defined(__FreeBSD__) && !defined(__NetBSD__) && \
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!defined(__APPLE__) && !defined(_WIN32) && !defined(__Fuchsia__)
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# error "This operating system is not supported"
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#endif
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#if defined(__linux__)
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# define SANITIZER_LINUX 1
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#else
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# define SANITIZER_LINUX 0
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#endif
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#if defined(__FreeBSD__)
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# define SANITIZER_FREEBSD 1
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#else
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# define SANITIZER_FREEBSD 0
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#endif
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#if defined(__NetBSD__)
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# define SANITIZER_NETBSD 1
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#else
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# define SANITIZER_NETBSD 0
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#endif
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#if defined(__APPLE__)
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# define SANITIZER_MAC 1
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# include <TargetConditionals.h>
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# if TARGET_OS_IPHONE
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# define SANITIZER_IOS 1
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# else
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# define SANITIZER_IOS 0
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# endif
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# if TARGET_IPHONE_SIMULATOR
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# define SANITIZER_IOSSIM 1
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# else
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# define SANITIZER_IOSSIM 0
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# endif
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#else
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# define SANITIZER_MAC 0
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# define SANITIZER_IOS 0
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# define SANITIZER_IOSSIM 0
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#endif
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#if defined(__APPLE__) && TARGET_OS_IPHONE && TARGET_OS_WATCH
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# define SANITIZER_WATCHOS 1
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#else
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# define SANITIZER_WATCHOS 0
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#endif
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#if defined(__APPLE__) && TARGET_OS_IPHONE && TARGET_OS_TV
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# define SANITIZER_TVOS 1
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#else
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# define SANITIZER_TVOS 0
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#endif
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#if defined(_WIN32)
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# define SANITIZER_WINDOWS 1
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#else
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# define SANITIZER_WINDOWS 0
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#endif
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#if defined(_WIN64)
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# define SANITIZER_WINDOWS64 1
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#else
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# define SANITIZER_WINDOWS64 0
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#endif
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#if defined(__ANDROID__)
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# define SANITIZER_ANDROID 1
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#else
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# define SANITIZER_ANDROID 0
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#endif
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#if defined(__Fuchsia__)
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# define SANITIZER_FUCHSIA 1
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#else
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# define SANITIZER_FUCHSIA 0
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#endif
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#define SANITIZER_POSIX \
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(SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_MAC || SANITIZER_NETBSD)
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#if __LP64__ || defined(_WIN64)
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# define SANITIZER_WORDSIZE 64
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#else
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# define SANITIZER_WORDSIZE 32
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#endif
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#if SANITIZER_WORDSIZE == 64
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# define FIRST_32_SECOND_64(a, b) (b)
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#else
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# define FIRST_32_SECOND_64(a, b) (a)
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#endif
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#if defined(__x86_64__) && !defined(_LP64)
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# define SANITIZER_X32 1
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#else
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# define SANITIZER_X32 0
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#endif
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#if defined(__mips__)
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# define SANITIZER_MIPS 1
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# if defined(__mips64)
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# define SANITIZER_MIPS32 0
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# define SANITIZER_MIPS64 1
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# else
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# define SANITIZER_MIPS32 1
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# define SANITIZER_MIPS64 0
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# endif
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#else
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# define SANITIZER_MIPS 0
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# define SANITIZER_MIPS32 0
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# define SANITIZER_MIPS64 0
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#endif
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#if defined(__s390__)
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# define SANITIZER_S390 1
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# if defined(__s390x__)
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# define SANITIZER_S390_31 0
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# define SANITIZER_S390_64 1
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# else
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# define SANITIZER_S390_31 1
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# define SANITIZER_S390_64 0
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# endif
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#else
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# define SANITIZER_S390 0
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# define SANITIZER_S390_31 0
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# define SANITIZER_S390_64 0
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#endif
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#if defined(__powerpc__)
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# define SANITIZER_PPC 1
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# if defined(__powerpc64__)
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# define SANITIZER_PPC32 0
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# define SANITIZER_PPC64 1
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// 64-bit PPC has two ABIs (v1 and v2). The old powerpc64 target is
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// big-endian, and uses v1 ABI (known for its function descriptors),
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// while the new powerpc64le target is little-endian and uses v2.
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// In theory, you could convince gcc to compile for their evil twins
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// (eg. big-endian v2), but you won't find such combinations in the wild
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// (it'd require bootstrapping a whole system, which would be quite painful
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// - there's no target triple for that). LLVM doesn't support them either.
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# if _CALL_ELF == 2
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# define SANITIZER_PPC64V1 0
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# define SANITIZER_PPC64V2 1
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# else
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# define SANITIZER_PPC64V1 1
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# define SANITIZER_PPC64V2 0
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# endif
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# else
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# define SANITIZER_PPC32 1
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# define SANITIZER_PPC64 0
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# define SANITIZER_PPC64V1 0
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# define SANITIZER_PPC64V2 0
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# endif
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#else
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# define SANITIZER_PPC 0
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# define SANITIZER_PPC32 0
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# define SANITIZER_PPC64 0
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# define SANITIZER_PPC64V1 0
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# define SANITIZER_PPC64V2 0
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#endif
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#if defined(__arm__)
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# define SANITIZER_ARM 1
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#else
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# define SANITIZER_ARM 0
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#endif
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// By default we allow to use SizeClassAllocator64 on 64-bit platform.
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// But in some cases (e.g. AArch64's 39-bit address space) SizeClassAllocator64
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// does not work well and we need to fallback to SizeClassAllocator32.
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// For such platforms build this code with -DSANITIZER_CAN_USE_ALLOCATOR64=0 or
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// change the definition of SANITIZER_CAN_USE_ALLOCATOR64 here.
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#ifndef SANITIZER_CAN_USE_ALLOCATOR64
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# if (SANITIZER_ANDROID && defined(__aarch64__)) || SANITIZER_FUCHSIA
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# define SANITIZER_CAN_USE_ALLOCATOR64 1
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# elif defined(__mips64) || defined(__aarch64__)
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# define SANITIZER_CAN_USE_ALLOCATOR64 0
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# else
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# define SANITIZER_CAN_USE_ALLOCATOR64 (SANITIZER_WORDSIZE == 64)
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# endif
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#endif
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// The range of addresses which can be returned my mmap.
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// FIXME: this value should be different on different platforms. Larger values
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// will still work but will consume more memory for TwoLevelByteMap.
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#if defined(__mips__)
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# define SANITIZER_MMAP_RANGE_SIZE FIRST_32_SECOND_64(1ULL << 32, 1ULL << 40)
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#elif defined(__aarch64__)
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# define SANITIZER_MMAP_RANGE_SIZE FIRST_32_SECOND_64(1ULL << 32, 1ULL << 48)
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#else
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# define SANITIZER_MMAP_RANGE_SIZE FIRST_32_SECOND_64(1ULL << 32, 1ULL << 47)
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#endif
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// The AArch64 linux port uses the canonical syscall set as mandated by
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// the upstream linux community for all new ports. Other ports may still
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// use legacy syscalls.
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#ifndef SANITIZER_USES_CANONICAL_LINUX_SYSCALLS
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# if defined(__aarch64__) && SANITIZER_LINUX
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# define SANITIZER_USES_CANONICAL_LINUX_SYSCALLS 1
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# else
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# define SANITIZER_USES_CANONICAL_LINUX_SYSCALLS 0
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# endif
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#endif
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// udi16 syscalls can only be used when the following conditions are
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// met:
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// * target is one of arm32, x86-32, sparc32, sh or m68k
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// * libc version is libc5, glibc-2.0, glibc-2.1 or glibc-2.2 to 2.15
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// built against > linux-2.2 kernel headers
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// Since we don't want to include libc headers here, we check the
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// target only.
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#if defined(__arm__) || SANITIZER_X32 || defined(__sparc__)
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#define SANITIZER_USES_UID16_SYSCALLS 1
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#else
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#define SANITIZER_USES_UID16_SYSCALLS 0
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#endif
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#if defined(__mips__)
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# define SANITIZER_POINTER_FORMAT_LENGTH FIRST_32_SECOND_64(8, 10)
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#else
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# define SANITIZER_POINTER_FORMAT_LENGTH FIRST_32_SECOND_64(8, 12)
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#endif
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// Assume obsolete RPC headers are available by default
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#if !defined(HAVE_RPC_XDR_H) && !defined(HAVE_TIRPC_RPC_XDR_H)
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# define HAVE_RPC_XDR_H (SANITIZER_LINUX && !SANITIZER_ANDROID)
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# define HAVE_TIRPC_RPC_XDR_H 0
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#endif
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/// \macro MSC_PREREQ
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/// \brief Is the compiler MSVC of at least the specified version?
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/// The common \param version values to check for are:
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/// * 1800: Microsoft Visual Studio 2013 / 12.0
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/// * 1900: Microsoft Visual Studio 2015 / 14.0
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#ifdef _MSC_VER
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# define MSC_PREREQ(version) (_MSC_VER >= (version))
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#else
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# define MSC_PREREQ(version) 0
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#endif
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#if defined(__arm64__) && SANITIZER_IOS
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# define SANITIZER_NON_UNIQUE_TYPEINFO 1
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#else
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# define SANITIZER_NON_UNIQUE_TYPEINFO 0
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#endif
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// On linux, some architectures had an ABI transition from 64-bit long double
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// (ie. same as double) to 128-bit long double. On those, glibc symbols
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// involving long doubles come in two versions, and we need to pass the
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// correct one to dlvsym when intercepting them.
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#if SANITIZER_LINUX && (SANITIZER_S390 || SANITIZER_PPC32 || SANITIZER_PPC64V1)
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#define SANITIZER_NLDBL_VERSION "GLIBC_2.4"
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#endif
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#if SANITIZER_GO == 0
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# define SANITIZER_GO 0
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#endif
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// On PowerPC and ARM Thumb, calling pthread_exit() causes LSan to detect leaks.
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// pthread_exit() performs unwinding that leads to dlopen'ing libgcc_s.so.
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// dlopen mallocs "libgcc_s.so" string which confuses LSan, it fails to realize
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// that this allocation happens in dynamic linker and should be ignored.
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#if SANITIZER_PPC || defined(__thumb__)
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# define SANITIZER_SUPPRESS_LEAK_ON_PTHREAD_EXIT 1
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#else
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# define SANITIZER_SUPPRESS_LEAK_ON_PTHREAD_EXIT 0
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#endif
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#endif // SANITIZER_PLATFORM_H
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