53 lines
1.9 KiB
Diff
53 lines
1.9 KiB
Diff
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Fix assertion failure in libsanitizer when using glibc 2.31 and later.
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92154
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https://reviews.llvm.org/D69104
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Adapted from these upstream revision:
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https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=277981
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https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=279653
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diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
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index 196eb3b3c64..b588e07e5ab 100644
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--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
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+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
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@@ -928,7 +928,11 @@ CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
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CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
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CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
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CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
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+#if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
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+/* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
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+ on many architectures. */
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CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
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+#endif
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CHECK_SIZE_AND_OFFSET(ipc_perm, __seq);
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CHECK_TYPE_SIZE(shmid_ds);
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diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
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index aec950454b3..6d94fc65c28 100644
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--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
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+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
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@@ -154,20 +154,13 @@ namespace __sanitizer {
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u64 __unused1;
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u64 __unused2;
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#elif defined(__sparc__)
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-# if defined(__arch64__)
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unsigned mode;
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- unsigned short __pad1;
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-# else
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- unsigned short __pad1;
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- unsigned short mode;
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unsigned short __pad2;
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-# endif
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unsigned short __seq;
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unsigned long long __unused1;
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unsigned long long __unused2;
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#else
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- unsigned short mode;
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- unsigned short __pad1;
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+ unsigned int mode;
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unsigned short __seq;
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unsigned short __pad2;
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#if defined(__x86_64__) && !defined(_LP64)
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