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-rw-r--r--gnu/packages/patches/gcc-4.9-libsanitizer-mode-size.patch52
1 files changed, 52 insertions, 0 deletions
diff --git a/gnu/packages/patches/gcc-4.9-libsanitizer-mode-size.patch b/gnu/packages/patches/gcc-4.9-libsanitizer-mode-size.patch
new file mode 100644
index 0000000000..7df22c21aa
--- /dev/null
+++ b/gnu/packages/patches/gcc-4.9-libsanitizer-mode-size.patch
@@ -0,0 +1,52 @@
+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 196eb3b3c64..b588e07e5ab 100644
+--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
++++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
+@@ -928,7 +928,11 @@ 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 !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
+ CHECK_SIZE_AND_OFFSET(ipc_perm, __seq);
+ 
+ CHECK_TYPE_SIZE(shmid_ds);
+diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
+index aec950454b3..6d94fc65c28 100644
+--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
++++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
+@@ -154,20 +154,13 @@ namespace __sanitizer {
+     u64 __unused1;
+     u64 __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)