diff options
| author | cee1 <fykcee1@gmail.com> | 2011-04-20 17:59:18 +0800 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2011-04-21 04:19:22 +0200 |
| commit | 373c23b27f2d886fc023cf5d02fe3bb3eba2e8e9 (patch) | |
| tree | aeac71b98278831d7b97385686431a28be96181e /src/missing.h | |
| parent | 13f9123298ac70d5d05c1de5d6b93ff11af9ac55 (diff) | |
missing: Fix broken syscall(__NR_fanotify_mark... on o32 mips.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=%23618562
MIPS o32 ABI enforces that 64bit arguments should be 64bit-aligned, and
the third argument of syscall(__NR_fanotify_mark, ...) is 64bit and not
64bit-aligned on o32 mips platform, thus extra padding is inserted
before it. The syscall function doesn't know the prototype of
fanotify_mark, so the padding will be passed into kernel as valid
argument.
Diffstat (limited to 'src/missing.h')
| -rw-r--r-- | src/missing.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/missing.h b/src/missing.h index 35e209fba4..f1dbb398e0 100644 --- a/src/missing.h +++ b/src/missing.h @@ -125,7 +125,18 @@ static inline int fanotify_init(unsigned int flags, unsigned int event_f_flags) static inline int fanotify_mark(int fanotify_fd, unsigned int flags, uint64_t mask, int dfd, const char *pathname) { +#if defined _MIPS_SIM && _MIPS_SIM == _MIPS_SIM_ABI32 + union { + uint64_t _64; + uint32_t _32[2]; + } _mask; + _mask._64 = mask; + + return syscall(__NR_fanotify_mark, fanotify_fd, flags, + _mask._32[0], _mask._32[1], dfd, pathname); +#else return syscall(__NR_fanotify_mark, fanotify_fd, flags, mask, dfd, pathname); +#endif } #ifndef BTRFS_IOCTL_MAGIC |