696d846a56
libsanitizer/ 2015-10-20 Maxim Ostapenko <m.ostapenko@partner.samsung.com> * All source files: Merge from upstream r250806. * configure.ac (link_sanitizer_common): Add -lrt flag. * configure.tgt: Enable TSAN and LSAN for aarch64-linux targets. Set CXX_ABI_NEEDED=true for darwin. * asan/Makefile.am (asan_files): Add new files. (DEFS): Add DCAN_SANITIZE_UB=0 and remove unused and legacy DASAN_FLEXIBLE_MAPPING_AND_OFFSET=0. * asan/Makefile.in: Regenerate. * ubsan/Makefile.am (ubsan_files): Add new files. (DEFS): Add DCAN_SANITIZE_UB=1. (libubsan_la_LIBADD): Add -lc++abi if CXX_ABI_NEEDED is true. * ubsan/Makefile.in: Regenerate. * tsan/Makefile.am (tsan_files): Add new files. (DEFS): Add DCAN_SANITIZE_UB=0. * tsan/Makefile.in: Regenerate. * sanitizer_common/Makefile.am (sanitizer_common_files): Add new files. * sanitizer_common/Makefile.in: Regenerate. * asan/libtool-version: Bump the libasan SONAME. From-SVN: r229111
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
//===-- sanitizer_flags.cc ------------------------------------------------===//
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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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// This file is a part of ThreadSanitizer/AddressSanitizer runtime.
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//
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//===----------------------------------------------------------------------===//
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#include "sanitizer_flags.h"
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#include "sanitizer_common.h"
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#include "sanitizer_libc.h"
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#include "sanitizer_list.h"
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#include "sanitizer_flag_parser.h"
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namespace __sanitizer {
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CommonFlags common_flags_dont_use;
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struct FlagDescription {
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const char *name;
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const char *description;
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FlagDescription *next;
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};
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IntrusiveList<FlagDescription> flag_descriptions;
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// If set, the tool will install its own SEGV signal handler by default.
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#ifndef SANITIZER_NEEDS_SEGV
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# define SANITIZER_NEEDS_SEGV 1
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#endif
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void CommonFlags::SetDefaults() {
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#define COMMON_FLAG(Type, Name, DefaultValue, Description) Name = DefaultValue;
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#include "sanitizer_flags.inc"
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#undef COMMON_FLAG
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}
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void CommonFlags::CopyFrom(const CommonFlags &other) {
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internal_memcpy(this, &other, sizeof(*this));
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}
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// Copy the string from "s" to "out", replacing "%b" with the binary basename.
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static void SubstituteBinaryName(const char *s, char *out, uptr out_size) {
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char *out_end = out + out_size;
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while (*s && out < out_end - 1) {
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if (s[0] != '%' || s[1] != 'b') { *out++ = *s++; continue; }
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const char *base = GetProcessName();
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CHECK(base);
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while (*base && out < out_end - 1)
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*out++ = *base++;
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s += 2; // skip "%b"
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}
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*out = '\0';
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}
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class FlagHandlerInclude : public FlagHandlerBase {
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FlagParser *parser_;
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bool ignore_missing_;
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public:
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explicit FlagHandlerInclude(FlagParser *parser, bool ignore_missing)
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: parser_(parser), ignore_missing_(ignore_missing) {}
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bool Parse(const char *value) final {
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if (internal_strchr(value, '%')) {
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char *buf = (char *)MmapOrDie(kMaxPathLength, "FlagHandlerInclude");
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SubstituteBinaryName(value, buf, kMaxPathLength);
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bool res = parser_->ParseFile(buf, ignore_missing_);
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UnmapOrDie(buf, kMaxPathLength);
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return res;
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}
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return parser_->ParseFile(value, ignore_missing_);
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}
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};
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void RegisterIncludeFlags(FlagParser *parser, CommonFlags *cf) {
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FlagHandlerInclude *fh_include = new (FlagParser::Alloc) // NOLINT
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FlagHandlerInclude(parser, /*ignore_missing*/ false);
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parser->RegisterHandler("include", fh_include,
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"read more options from the given file");
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FlagHandlerInclude *fh_include_if_exists = new (FlagParser::Alloc) // NOLINT
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FlagHandlerInclude(parser, /*ignore_missing*/ true);
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parser->RegisterHandler(
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"include_if_exists", fh_include_if_exists,
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"read more options from the given file (if it exists)");
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}
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void RegisterCommonFlags(FlagParser *parser, CommonFlags *cf) {
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#define COMMON_FLAG(Type, Name, DefaultValue, Description) \
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RegisterFlag(parser, #Name, Description, &cf->Name);
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#include "sanitizer_flags.inc"
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#undef COMMON_FLAG
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RegisterIncludeFlags(parser, cf);
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}
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} // namespace __sanitizer
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