[git commit] sync_file_range: fix standard UCLIBC_SYSCALL_ALIGN_64BIT handling
Bernhard Reutner-Fischer
rep.dot.nop at gmail.com
Fri Feb 20 10:35:33 UTC 2015
commit: http://git.uclibc.org/uClibc/commit/?id=cd03281d3c2c168f32e42783ee78995772a1763a
branch: http://git.uclibc.org/uClibc/commit/?id=refs/heads/master
Currently UCLIBC_SYSCALL_ALIGN_64BIT is not explicitly handled. Fix that
and make sure the special handling is done for powerpc/xtensa which use
UCLIBC_SYSCALL_ALIGN_64BIT but don't use hole punched syscall handler in
kernel.
Signed-off-by: Vineet Gupta <vgupta at synopsys.com>
Cc: Baruch Siach <baruch at tkos.co.il>
Cc: Max Filippov <jcmvbkbc at gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop at gmail.com>
---
libc/sysdeps/linux/common/sync_file_range.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/libc/sysdeps/linux/common/sync_file_range.c b/libc/sysdeps/linux/common/sync_file_range.c
index 6cd7e94..db797de 100644
--- a/libc/sysdeps/linux/common/sync_file_range.c
+++ b/libc/sysdeps/linux/common/sync_file_range.c
@@ -24,7 +24,11 @@ static int __NC(sync_file_range)(int fd, off64_t offset, off64_t nbytes, unsigne
{
# if defined __powerpc__ && __WORDSIZE == 64
return INLINE_SYSCALL(sync_file_range, 4, fd, flags, offset, nbytes);
-# elif defined __mips__ && _MIPS_SIM == _ABIO32
+# elif (defined __mips__ && _MIPS_SIM == _ABIO32) || \
+ (defined(__UCLIBC_SYSCALL_ALIGN_64BIT__) && !(defined(__powerpc__) || defined(__xtensa__)))
+ /* arch with 64-bit data in even reg alignment #2: [arcv2/others-in-future]
+ * stock syscall handler in kernel (reg hole punched)
+ * see libc/sysdeps/linux/common/posix_fadvise.c for more details */
return INLINE_SYSCALL(sync_file_range, 7, fd, 0,
OFF64_HI_LO(offset), OFF64_HI_LO(nbytes), flags);
# elif defined __NR_sync_file_range2
More information about the uClibc-cvs
mailing list