diff options
Diffstat (limited to 'sysdeps/posix/dirstream.h')
| -rw-r--r-- | sysdeps/posix/dirstream.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sysdeps/posix/dirstream.h b/sysdeps/posix/dirstream.h index 8e8570dd48..be20895051 100644 --- a/sysdeps/posix/dirstream.h +++ b/sysdeps/posix/dirstream.h @@ -41,8 +41,13 @@ struct __dirstream int errcode; /* Delayed error code. */ - /* Directory block. */ - char data[0] __attribute__ ((aligned (__alignof__ (void*)))); + /* Directory block. We must make sure that this block starts + at an address that is aligned adequately enough to store + dirent entries. Using the alignment of "void *" is not + sufficient because dirents on 32-bit platforms can require + 64-bit alignment. We use "long double" here to be consistent + with what malloc uses. */ + char data[0] __attribute__ ((aligned (__alignof__ (long double)))); }; #define _DIR_dirfd(dirp) ((dirp)->fd) |