https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70624
Bug ID: 70624 Summary: [6 Regression] Several hundred asan failures with 6.0 on x86_64-apple-darwin10.8 Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: sanitizer Assignee: unassigned at gcc dot gnu.org Reporter: dominiq at lps dot ens.fr CC: chefmax at gcc dot gnu.org, dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org, jakub at gcc dot gnu.org, kcc at gcc dot gnu.org Target Milestone: --- Host: x86_64-apple-darwin10.8 Target: x86_64-apple-darwin10.8 Build: x86_64-apple-darwin10.8 On x86_64-apple-darwin10.8 I get several hundred asan failures with 6.0 (see https://gcc.gnu.org/ml/gcc-testresults/2016-04/msg01013.html). Most (if not all) of them are of the kind dyld: Symbol not found: _dyldVersionNumber Referenced from: /opt/gcc/build_c/x86_64-apple-darwin10.8.0/i386/libsanitizer/asan/.libs/libasan.3.dylib Expected in: flat namespace in /opt/gcc/build_c/x86_64-apple-darwin10.8.0/i386/libsanitizer/asan/.libs/libasan.3.dylib AFAICT they are related to revision r229111 +bool DyldNeedsEnvVariable() { + // If running on OS X 10.11+ or iOS 9.0+, dyld will interpose even if + // DYLD_INSERT_LIBRARIES is not set. However, checking OS version via + // GetMacosVersion() doesn't work for the simulator. Let's instead check + // `dyldVersionNumber`, which is exported by dyld, against a known version + // number from the first OS release where this appeared. + return dyldVersionNumber < kMinDyldVersionWithAutoInterposition; +} +