gnu/packages/patches/gcc-7-libsanitizer-mode-size.patch

   1 Fix assertion failure in libsanitizer when using glibc 2.31 and later.
   2
   3 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92154
   4 https://reviews.llvm.org/D69104
   5
   6 Adapted from these upstream revision:
   7
   8 https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=277981
   9 https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=279653
  10
  11 diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
  12 index 97eae3fc7bc..4089d4695e2 100644
  13 --- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
  14 +++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
  15 @@ -1145,8 +1145,9 @@ CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
  16  CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
  17  CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
  18  CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
  19 -#if !defined(__aarch64__) || !SANITIZER_LINUX || __GLIBC_PREREQ (2, 21)
  20 -/* On aarch64 glibc 2.20 and earlier provided incorrect mode field.  */
  21 +#if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
  22 +/* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
  23 +   on many architectures.  */
  24  CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
  25  #endif
  26
  27 diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
  28 index c139322839a..7c3c2d866e5 100644
  29 --- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
  30 +++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
  31 @@ -211,20 +211,13 @@ namespace __sanitizer {
  32      unsigned long __unused1;
  33      unsigned long __unused2;
  34  #elif defined(__sparc__)
  35 -# if defined(__arch64__)
  36      unsigned mode;
  37 -    unsigned short __pad1;
  38 -# else
  39 -    unsigned short __pad1;
  40 -    unsigned short mode;
  41      unsigned short __pad2;
  42 -# endif
  43      unsigned short __seq;
  44      unsigned long long __unused1;
  45      unsigned long long __unused2;
  46  #else
  47 -    unsigned short mode;
  48 -    unsigned short __pad1;
  49 +    unsigned int mode;
  50      unsigned short __seq;
  51      unsigned short __pad2;
  52  #if defined(__x86_64__) && !defined(_LP64)
  53