diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/sanitizer_common/symbolizer/scripts')
2 files changed, 422 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh new file mode 100755 index 000000000000..b4702339db59 --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh @@ -0,0 +1,202 @@ +#!/usr/bin/env bash +# +# Run as: CLANG=bin/clang build_symbolizer.sh out.o +# If you want to use a local copy of zlib, set ZLIB_SRC. +# zlib can be downloaded from http://www.zlib.net. +# +# Script compiles self-contained object file with symbolization code. +# +# Symbols exported by the object file will be used by Sanitizer runtime +# libraries to symbolize code/data in-process. +# +# FIXME: We should really be using a simpler approach to building this object +# file, and it should be available as a regular cmake rule. Conceptually, we +# want to be doing "ld -r" followed by "objcopy -G" to create a relocatable +# object file with only our entry points exposed. However, this does not work at +# present, see https://github.com/llvm/llvm-project/issues/30098. + +set -x +set -e +set -u + +SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd) +SRC_DIR=$(readlink -f $SCRIPT_DIR/..) + +if [[ $# -ne 1 ]]; then + echo "Missing output file" + exit 1 +fi + +OUTPUT=$(readlink -f $1) +COMPILER_RT_SRC=$(readlink -f ${SCRIPT_DIR}/../../../..) +LLVM_SRC=${LLVM_SRC:-${COMPILER_RT_SRC}/../llvm} +LLVM_SRC=$(readlink -f $LLVM_SRC) + +CLANG="${CLANG:-`which clang`}" +CLANG_DIR=$(readlink -f $(dirname "$CLANG")) + +CC=$CLANG_DIR/clang +CXX=$CLANG_DIR/clang++ +TBLGEN=$CLANG_DIR/llvm-tblgen +OPT=$CLANG_DIR/opt +AR=$CLANG_DIR/llvm-ar +LINK=$CLANG_DIR/llvm-link + +for F in $CC $CXX $TBLGEN $LINK $OPT $AR; do + if [[ ! -x "$F" ]]; then + echo "Missing $F" + exit 1 + fi +done + +BUILD_DIR=${PWD}/symbolizer +mkdir -p $BUILD_DIR +cd $BUILD_DIR + +ZLIB_BUILD=${BUILD_DIR}/zlib +LIBCXX_BUILD=${BUILD_DIR}/libcxx +LLVM_BUILD=${BUILD_DIR}/llvm +SYMBOLIZER_BUILD=${BUILD_DIR}/symbolizer + +FLAGS=${FLAGS:-} +ZLIB_SRC=${ZLIB_SRC:-} +TARGET_TRIPLE=$($CC -print-target-triple $FLAGS) +if [[ "$FLAGS" =~ "-m32" ]] ; then + # Avoid new wrappers. + FLAGS+=" -U_FILE_OFFSET_BITS" +fi +FLAGS+=" -fPIC -flto -Oz -g0 -DNDEBUG -target $TARGET_TRIPLE -Wno-unused-command-line-argument" +FLAGS+=" -include ${SRC_DIR}/../sanitizer_redefine_builtins.h -DSANITIZER_COMMON_REDEFINE_BUILTINS_IN_STD -Wno-language-extension-token" + +LINKFLAGS="-fuse-ld=lld -target $TARGET_TRIPLE" + +# Build zlib. +if [[ ! -d ${ZLIB_BUILD} ]]; then + if [[ -z "${ZLIB_SRC}" ]]; then + git clone https://github.com/madler/zlib ${ZLIB_BUILD} + else + ZLIB_SRC=$(readlink -f $ZLIB_SRC) + mkdir -p ${ZLIB_BUILD} + cp -r ${ZLIB_SRC}/* ${ZLIB_BUILD}/ + fi +fi + +cd ${ZLIB_BUILD} +AR="${AR}" CC="${CC}" CFLAGS="$FLAGS -Wno-deprecated-non-prototype" RANLIB=/bin/true ./configure --static +make -j libz.a + +# Build and install libcxxabi and libcxx. +if [[ ! -f ${LLVM_BUILD}/build.ninja ]]; then + rm -rf ${LIBCXX_BUILD} + mkdir -p ${LIBCXX_BUILD} + cd ${LIBCXX_BUILD} + LIBCXX_FLAGS="${FLAGS} -Wno-macro-redefined" + cmake -GNinja \ + -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi" \ + -DCMAKE_BUILD_TYPE=Release \ + -DCMAKE_C_COMPILER_WORKS=ON \ + -DCMAKE_CXX_COMPILER_WORKS=ON \ + -DCMAKE_C_COMPILER=$CC \ + -DCMAKE_CXX_COMPILER=$CXX \ + -DLIBCXX_ABI_NAMESPACE=__InternalSymbolizer \ + '-DLIBCXX_EXTRA_SITE_DEFINES=_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS;_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS' \ + -DCMAKE_C_FLAGS_RELEASE="${LIBCXX_FLAGS}" \ + -DCMAKE_CXX_FLAGS_RELEASE="${LIBCXX_FLAGS}" \ + -DLIBCXXABI_ENABLE_ASSERTIONS=OFF \ + -DLIBCXXABI_ENABLE_EXCEPTIONS=OFF \ + -DLIBCXXABI_USE_LLVM_UNWINDER=OFF \ + -DLIBCXX_ENABLE_ASSERTIONS=OFF \ + -DLIBCXX_ENABLE_EXCEPTIONS=OFF \ + -DLIBCXX_ENABLE_RTTI=OFF \ + -DCMAKE_SHARED_LINKER_FLAGS="$LINKFLAGS" \ + -DLIBCXX_ENABLE_SHARED=OFF \ + -DLIBCXXABI_ENABLE_SHARED=OFF \ + $LLVM_SRC/../runtimes +fi +cd ${LIBCXX_BUILD} +ninja cxx cxxabi + +FLAGS="${FLAGS} -fno-rtti -fno-exceptions" +LLVM_CFLAGS="${FLAGS} -Wno-global-constructors" +LLVM_CXXFLAGS="${LLVM_CFLAGS} -nostdinc++ -I${ZLIB_BUILD} -isystem ${LIBCXX_BUILD}/include -isystem ${LIBCXX_BUILD}/include/c++/v1" + +# Build LLVM. +if [[ ! -f ${LLVM_BUILD}/build.ninja ]]; then + rm -rf ${LLVM_BUILD} + mkdir -p ${LLVM_BUILD} + cd ${LLVM_BUILD} + cmake -GNinja \ + -DCMAKE_BUILD_TYPE=Release \ + -DCMAKE_C_COMPILER_WORKS=ON \ + -DCMAKE_CXX_COMPILER_WORKS=ON \ + -DCMAKE_C_COMPILER=$CC \ + -DCMAKE_CXX_COMPILER=$CXX \ + -DLLVM_ENABLE_LIBCXX=ON \ + -DCMAKE_C_FLAGS_RELEASE="${LLVM_CFLAGS}" \ + -DCMAKE_CXX_FLAGS_RELEASE="${LLVM_CXXFLAGS}" \ + -DCMAKE_EXE_LINKER_FLAGS="$LINKFLAGS -stdlib=libc++ -L${LIBCXX_BUILD}/lib" \ + -DLLVM_TABLEGEN=$TBLGEN \ + -DLLVM_INCLUDE_TESTS=OFF \ + -DLLVM_ENABLE_ZLIB=ON \ + -DLLVM_ENABLE_ZSTD=OFF \ + -DLLVM_ENABLE_THREADS=OFF \ + $LLVM_SRC +fi +cd ${LLVM_BUILD} +ninja LLVMSymbolize LLVMObject LLVMBinaryFormat LLVMDebugInfoDWARF LLVMSupport LLVMDebugInfoPDB LLVMDebuginfod LLVMMC LLVMDemangle LLVMTextAPI LLVMTargetParser LLVMCore + +cd ${BUILD_DIR} +rm -rf ${SYMBOLIZER_BUILD} +mkdir ${SYMBOLIZER_BUILD} +cd ${SYMBOLIZER_BUILD} + +echo "Compiling..." +SYMBOLIZER_FLAGS="$LLVM_CXXFLAGS -I${LLVM_SRC}/include -I${LLVM_BUILD}/include -std=c++17" +$CXX $SYMBOLIZER_FLAGS ${SRC_DIR}/sanitizer_symbolize.cpp ${SRC_DIR}/sanitizer_wrappers.cpp -c +$AR rc symbolizer.a sanitizer_symbolize.o sanitizer_wrappers.o + +SYMBOLIZER_API_LIST=__sanitizer_symbolize_code +SYMBOLIZER_API_LIST+=,__sanitizer_symbolize_data +SYMBOLIZER_API_LIST+=,__sanitizer_symbolize_frame +SYMBOLIZER_API_LIST+=,__sanitizer_symbolize_flush +SYMBOLIZER_API_LIST+=,__sanitizer_symbolize_demangle +SYMBOLIZER_API_LIST+=,__sanitizer_symbolize_set_demangle +SYMBOLIZER_API_LIST+=,__sanitizer_symbolize_set_inline_frames + +LIBCXX_ARCHIVE_DIR=$(dirname $(find $LIBCXX_BUILD -name libc++.a | head -n1)) + +# Merge all the object files together and copy the resulting library back. +$LINK $LIBCXX_ARCHIVE_DIR/libc++.a \ + $LIBCXX_ARCHIVE_DIR/libc++abi.a \ + $LLVM_BUILD/lib/libLLVMSymbolize.a \ + $LLVM_BUILD/lib/libLLVMObject.a \ + $LLVM_BUILD/lib/libLLVMBinaryFormat.a \ + $LLVM_BUILD/lib/libLLVMDebugInfoDWARF.a \ + $LLVM_BUILD/lib/libLLVMSupport.a \ + $LLVM_BUILD/lib/libLLVMDebugInfoPDB.a \ + $LLVM_BUILD/lib/libLLVMDebugInfoMSF.a \ + $LLVM_BUILD/lib/libLLVMDebugInfoCodeView.a \ + $LLVM_BUILD/lib/libLLVMDebuginfod.a \ + $LLVM_BUILD/lib/libLLVMDemangle.a \ + $LLVM_BUILD/lib/libLLVMMC.a \ + $LLVM_BUILD/lib/libLLVMTextAPI.a \ + $LLVM_BUILD/lib/libLLVMTargetParser.a \ + $LLVM_BUILD/lib/libLLVMCore.a \ + $ZLIB_BUILD/libz.a \ + symbolizer.a \ + -ignore-non-bitcode -o all.bc + +echo "Optimizing..." +$OPT -passes=internalize -internalize-public-api-list=${SYMBOLIZER_API_LIST} all.bc -o opt.bc +$CC $FLAGS -fno-lto -c opt.bc -o symbolizer.o + +echo "Checking undefined symbols..." +export LC_ALL=C +nm -f posix -g symbolizer.o | cut -f 1,2 -d \ | sort -u > undefined.new +grep -Ev "^#|^$" $SCRIPT_DIR/global_symbols.txt | sort -u > expected.new +(diff -u expected.new undefined.new | grep -E "^\+[^+]") && \ + (echo "Failed: unexpected symbols"; exit 1) + +cp -f symbolizer.o $OUTPUT + +echo "Success!" diff --git a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/symbolizer/scripts/global_symbols.txt b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/symbolizer/scripts/global_symbols.txt new file mode 100644 index 000000000000..2ee813835087 --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/symbolizer/scripts/global_symbols.txt @@ -0,0 +1,220 @@ +# This file is used to control symbols used by internal symbolizer. We want to +# avoid unexpected dependency on function intercepted by sanitizers. + +_GLOBAL_OFFSET_TABLE_ U +_ZN11__sanitizer13internal_mmapEPvjiiiy U +_ZN11__sanitizer13internal_mmapEPvmiiiy U +_ZN11__sanitizer13internal_openEPKcij U +_ZN11__sanitizer13internal_statEPKcPv U +_ZN11__sanitizer14internal_closeEi U +_ZN11__sanitizer14internal_fstatEiPv U +_ZN11__sanitizer14internal_lstatEPKcPv U +_ZN11__sanitizer15internal_strlenEPKc U +_ZN11__sanitizer16internal_iserrorEjPi U +_ZN11__sanitizer16internal_iserrorEmPi U +_ZN11__sanitizer17internal_snprintfEPcjPKcz U +_ZN11__sanitizer17internal_snprintfEPcmPKcz U +__aarch64_cas8_acq_rel U +__aarch64_ldadd4_acq_rel U +__aarch64_ldadd8_acq_rel U +__aarch64_ldadd8_relax U +__aarch64_swp8_acq_rel U +__ashldi3 U +__ashrdi3 U +__ctype_b_loc U +__ctype_get_mb_cur_max U +__cxa_atexit U +__divdi3 U +__dso_handle U +__errno_location U +__interceptor_pread w +__interceptor_pthread_cond_broadcast w +__interceptor_pthread_cond_wait w +__interceptor_pthread_getspecific w +__interceptor_pthread_key_create w +__interceptor_pthread_mutex_destroy w +__interceptor_pthread_mutex_init w +__interceptor_pthread_mutex_lock w +__interceptor_pthread_mutex_unlock w +__interceptor_pthread_mutexattr_destroy w +__interceptor_pthread_mutexattr_init w +__interceptor_pthread_mutexattr_settype w +__interceptor_pthread_once w +__interceptor_pthread_setspecific w +__interceptor_read w +__interceptor_realpath w +__isinf U +__isoc23_sscanf U +__isoc23_strtol U +__isoc23_strtoll U +__isoc23_strtoll_l U +__isoc23_strtoull U +__isoc23_strtoull_l U +__isoc23_vsscanf U +__isoc99_sscanf U +__isoc99_vsscanf U +__lshrdi3 U +__moddi3 U +__sanitizer_internal_memcpy U +__sanitizer_internal_memmove U +__sanitizer_internal_memset U +__sanitizer_symbolize_code T +__sanitizer_symbolize_data T +__sanitizer_symbolize_demangle T +__sanitizer_symbolize_flush T +__sanitizer_symbolize_frame T +__sanitizer_symbolize_set_demangle T +__sanitizer_symbolize_set_inline_frames T +__start___lcxx_override U +__stop___lcxx_override U +__strdup U +__udivdi3 U +__umoddi3 U +_exit U +abort U +access U +aligned_alloc U +arc4random U +bcmp U +calloc U +catclose U +catgets U +catopen U +ceil U +ceilf U +cfgetospeed U +clock_gettime U +dl_iterate_phdr U +dlsym U +dup U +dup2 U +environ U +execv U +execve U +exit U +fclose U +fflush U +fileno U +fopen U +fork U +fprintf U +fputc U +fputwc U +free U +freelocale U +fwrite U +getc U +getcwd U +getenv U +getpagesize U +getpid U +getpwuid U +getrlimit U +gettimeofday U +getuid U +getwc U +ioctl U +isalnum U +isalpha U +isatty U +islower U +isprint U +isspace U +isupper U +isxdigit U +log10 U +lseek U +lseek64 U +madvise U +malloc U +mbrlen U +mbrtowc U +mbsnrtowcs U +mbsrtowcs U +mbtowc U +memchr U +memcmp U +memcpy U +memmove U +memset U +mkdir U +modf U +munmap U +newlocale U +perror U +posix_madvise U +posix_memalign U +posix_spawn U +posix_spawn_file_actions_adddup2 U +posix_spawn_file_actions_addopen U +posix_spawn_file_actions_destroy U +posix_spawn_file_actions_init U +printf U +putchar U +qsort U +raise U +rand U +readlink U +realloc U +remove U +rename U +setrlimit U +setvbuf U +sigaction U +sigaltstack U +sigemptyset U +sigfillset U +sigprocmask U +snprintf U +sprintf U +srand U +sscanf U +stderr U +stdin U +stdout U +strcat U +strchr U +strcmp U +strcpy U +strdup U +strerror U +strerror_r U +strftime_l U +strncmp U +strncpy U +strrchr U +strsep U +strtod U +strtod_l U +strtof_l U +strtok_r U +strtol U +strtold_l U +strtoll U +strtoll_l U +strtoull U +strtoull_l U +syscall U +sysconf U +tcgetattr U +tolower U +toupper U +uname U +ungetc U +ungetwc U +unlink U +uselocale U +vasprintf U +vfprintf U +vsnprintf U +vsscanf U +wait4 U +waitpid U +wcrtomb U +wcslen U +wcsnrtombs U +wmemchr U +wmemcpy U +wmemmove U +wmemset U +write U |