llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-compiler-rt-sanitizer Author: Deák Lajos (deaklajos) <details> <summary>Changes</summary> Backports: 3fc723ec2cf1965aa4eec8883957fbbe1b2e7027 (#<!-- -->136195) Ran into the issue on Alpine when building with TSAN that `__sanitizer_msghdr` and the `msghdr` provided by musl did not match. This caused lots of tsan reports and an eventual termination of the application by the oom during a `sendmsg`. --- Full diff: https://github.com/llvm/llvm-project/pull/159551.diff 1 Files Affected: - (modified) compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h (+24) ``````````diff diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h index f118d53f0df80..24966523f3a02 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h +++ b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h @@ -478,6 +478,30 @@ struct __sanitizer_cmsghdr { int cmsg_level; int cmsg_type; }; +# elif SANITIZER_MUSL +struct __sanitizer_msghdr { + void *msg_name; + unsigned msg_namelen; + struct __sanitizer_iovec *msg_iov; + int msg_iovlen; +# if SANITIZER_WORDSIZE == 64 + int __pad1; +# endif + void *msg_control; + unsigned msg_controllen; +# if SANITIZER_WORDSIZE == 64 + int __pad2; +# endif + int msg_flags; +}; +struct __sanitizer_cmsghdr { + unsigned cmsg_len; +# if SANITIZER_WORDSIZE == 64 + int __pad1; +# endif + int cmsg_level; + int cmsg_type; +}; # else // In POSIX, int msg_iovlen; socklen_t msg_controllen; socklen_t cmsg_len; but // many implementations don't conform to the standard. `````````` </details> https://github.com/llvm/llvm-project/pull/159551 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
