diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/pwrite.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/pwrite.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/pwrite.c b/sysdeps/unix/sysv/linux/mips/pwrite.c index 44f9d30..f25e327 100644 --- a/sysdeps/unix/sysv/linux/mips/pwrite.c +++ b/sysdeps/unix/sysv/linux/mips/pwrite.c @@ -22,12 +22,19 @@ #include <unistd.h> #include <endian.h> -#include <sysdep.h> +#include <sysdep-cancel.h> #include <sys/syscall.h> #include <bp-checks.h> #include <kernel-features.h> +#ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */ +# ifdef __NR_pwrite +# error "__NR_pwrite and __NR_pwrite64 both defined???" +# endif +# define __NR_pwrite __NR_pwrite64 +#endif + #if defined __NR_pwrite || __ASSUME_PWRITE_SYSCALL > 0 extern ssize_t __syscall_pwrite (int fd, const void *__unbounded buf, size_t count, @@ -47,16 +54,35 @@ __libc_pwrite (fd, buf, count, offset) { ssize_t result; + if (SINGLE_THREAD_P) + { + /* First try the syscall. */ + assert (sizeof (offset) == 4); + result = INLINE_SYSCALL (pwrite, 6, fd, CHECK_N (buf, count), count, 0, + __LONG_LONG_PAIR (offset >> 31, offset)); +# if __ASSUME_PWRITE_SYSCALL == 0 + if (result == -1 && errno == ENOSYS) + /* No system call available. Use the emulation. */ + result = __emulate_pwrite (fd, buf, count, offset); +# endif + + return result; + } + + int oldtype = LIBC_CANCEL_ASYNC (); + /* First try the syscall. */ assert (sizeof (offset) == 4); result = INLINE_SYSCALL (pwrite, 6, fd, CHECK_N (buf, count), count, 0, - __LONG_LONG_PAIR (offset >> 31, offset)); + __LONG_LONG_PAIR (offset >> 31, offset)); # if __ASSUME_PWRITE_SYSCALL == 0 if (result == -1 && errno == ENOSYS) /* No system call available. Use the emulation. */ result = __emulate_pwrite (fd, buf, count, offset); # endif + LIBC_CANCEL_RESET (oldtype); + return result; } |