Signed-off-by: Yuriy Kolerov <[email protected]>
---
libc/sysdeps/linux/common/fallocate.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/libc/sysdeps/linux/common/fallocate.c
b/libc/sysdeps/linux/common/fallocate.c
index 97ac303..d953a46 100644
--- a/libc/sysdeps/linux/common/fallocate.c
+++ b/libc/sysdeps/linux/common/fallocate.c
@@ -21,14 +21,12 @@ int attribute_hidden __libc_fallocate(int fd, int mode,
__off_t offset, __off_t
int ret;
# if __WORDSIZE == 32
- uint32_t off_low = offset;
- uint32_t len_low = len;
- /* may assert that these >>31 are 0 */
- uint32_t zero = 0;
+ int32_t offset_sign_extension = (offset < 0) ? 0xFFFFFFFF : 0;
+ int32_t len_sign_extension = (len < 0) ? 0xFFFFFFFF : 0;
INTERNAL_SYSCALL_DECL(err);
ret = (int) (INTERNAL_SYSCALL(fallocate, err, 6, fd, mode,
- __LONG_LONG_PAIR(zero, off_low),
- __LONG_LONG_PAIR(zero, len_low)));
+ __LONG_LONG_PAIR(offset_sign_extension, offset),
+ __LONG_LONG_PAIR(len_sign_extension, len)));
# elif __WORDSIZE == 64
INTERNAL_SYSCALL_DECL(err);
ret = (int) (INTERNAL_SYSCALL(fallocate, err, 4, fd, mode, offset,
len));
--
2.2.0
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