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-rw-r--r--gnu/packages/patches/gcc-6-libsanitizer-mode-size.patch53
1 files changed, 53 insertions, 0 deletions
diff --git a/gnu/packages/patches/gcc-6-libsanitizer-mode-size.patch b/gnu/packages/patches/gcc-6-libsanitizer-mode-size.patch
new file mode 100644
index 0000000000..005e3c4079
--- /dev/null
+++ b/gnu/packages/patches/gcc-6-libsanitizer-mode-size.patch
@@ -0,0 +1,53 @@
+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 069d8d557de..c49c28c6e07 100644
+--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
++++ b/libsanitizer/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/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
+index 304d04e3935..6dee89c97e1 100644
+--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
++++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
+@@ -207,20 +207,13 @@ 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)
+