Fix assertion failure in libsanitizer when using glibc 2.31 and later. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92154 https://reviews.llvm.org/D69104 Adapted from these upstream revision: https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=277981 https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=279653 diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc index 97eae3fc7bc..4089d4695e2 100644 --- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc +++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc @@ -1145,8 +1145,9 @@ CHECK_SIZE_AND_OFFSET(ipc_perm, uid); CHECK_SIZE_AND_OFFSET(ipc_perm, gid); CHECK_SIZE_AND_OFFSET(ipc_perm, cuid); CHECK_SIZE_AND_OFFSET(ipc_perm, cgid); -#if !defined(__aarch64__) || !SANITIZER_LINUX || __GLIBC_PREREQ (2, 21) -/* On aarch64 glibc 2.20 and earlier provided incorrect mode field. */ +#if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31) +/* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit + on many architectures. */ CHECK_SIZE_AND_OFFSET(ipc_perm, mode); #endif diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h index c139322839a..7c3c2d866e5 100644 --- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h +++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h @@ -211,20 +211,13 @@ namespace __sanitizer { unsigned long __unused1; unsigned long __unused2; #elif defined(__sparc__) -# if defined(__arch64__) unsigned mode; - unsigned short __pad1; -# else - unsigned short __pad1; - unsigned short mode; unsigned short __pad2; -# endif unsigned short __seq; unsigned long long __unused1; unsigned long long __unused2; #else - unsigned short mode; - unsigned short __pad1; + unsigned int mode; unsigned short __seq; unsigned short __pad2; #if defined(__x86_64__) && !defined(_LP64)