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Adjust libsanitizer to ABI change in glibc 2.31.
Adapted to 3.x from this upstream commit:
https://github.com/llvm/llvm-project/commit/947f9692440836dcb8d88b74b69dd379d85974ce
diff --git a/lib/sanitizer_common/sanitizer_platform_limits_posix.cc b/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
--- a/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
@@ -1130,8 +1130,9 @@ CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
#ifndef __GLIBC_PREREQ
#define __GLIBC_PREREQ(x, y) 0
#endif
-#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/lib/sanitizer_common/sanitizer_platform_limits_posix.h b/lib/sanitizer_common/sanitizer_platform_limits_posix.h
--- a/lib/sanitizer_common/sanitizer_platform_limits_posix.h
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.h
@@ -188,17 +188,16 @@ namespace __sanitizer {
unsigned __seq;
u64 __unused1;
u64 __unused2;
-#elif defined(__mips__) || defined(__aarch64__)
- unsigned int mode;
- unsigned short __seq;
- unsigned short __pad1;
- unsigned long __unused1;
- unsigned long __unused2;
+#elif defined(__sparc__)
+ unsigned mode;
+ unsigned short __pad2;
+ unsigned short __seq;
+ unsigned long long __unused1;
+ unsigned long long __unused2;
#else
- unsigned short mode;
- unsigned short __pad1;
- unsigned short __seq;
- unsigned short __pad2;
+ unsigned int mode;
+ unsigned short __seq;
+ unsigned short __pad2;
#if defined(__x86_64__) && !defined(_LP64)
u64 __unused1;
u64 __unused2;
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