Add support for cancellation handling and handle both __NR_pread64 and

__NR_pread.

diff --git a/sysdeps/unix/sysv/linux/mips/pread.c b/sysdeps/unix/sysv/linux/mips/pread.c
index 45305d2..e6cb21f 100644 (file)
--- a/sysdeps/unix/sysv/linux/mips/pread.c
+++ b/sysdeps/unix/sysv/linux/mips/pread.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_pread64             /* Newer kernels renamed but it's the same.  */
+# ifdef __NR_pread
+#  error "__NR_pread and __NR_pread64 both defined???"
+# endif
+# define __NR_pread __NR_pread64
+#endif
+
 #if defined __NR_pread || __ASSUME_PREAD_SYSCALL > 0
 
 # if __ASSUME_PREAD_SYSCALL == 0
@@ -48,6 +55,22 @@ __libc_pread (fd, buf, count, offset)
 {
   ssize_t result;
 
+  if (SINGLE_THREAD_P)
+    {
+     /* First try the syscall.  */
+     assert (sizeof (offset) == 4);
+     result = INLINE_SYSCALL (pread, 6, fd, CHECK_N (buf, count), count, 0,
+                             __LONG_LONG_PAIR (offset >> 31, offset));
+# if __ASSUME_PREAD_SYSCALL == 0
+     if (result == -1 && errno == ENOSYS)
+     /* No system call available.  Use the emulation.  */
+     result = __emulate_pread (fd, buf, count, offset);
+# endif
+     return result;
+    }
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
   /* First try the syscall.  */
   assert (sizeof (offset) == 4);
   result = INLINE_SYSCALL (pread, 6, fd, CHECK_N (buf, count), count, 0,
@@ -57,6 +80,9 @@ __libc_pread (fd, buf, count, offset)
     /* No system call available.  Use the emulation.  */
     result = __emulate_pread (fd, buf, count, offset);
 # endif
+
+  LIBC_CANCEL_RESET (oldtype);
+
   return result;
 }
 

diff --git a/sysdeps/unix/sysv/linux/mips/pread64.c b/sysdeps/unix/sysv/linux/mips/pread64.c
index d36d689..36ec100 100644 (file)
--- a/sysdeps/unix/sysv/linux/mips/pread64.c
+++ b/sysdeps/unix/sysv/linux/mips/pread64.c
@@ -21,12 +21,19 @@
 #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_pread64             /* Newer kernels renamed but it's the same.  */
+# ifdef __NR_pread
+#  error "__NR_pread and __NR_pread64 both defined???"
+# endif
+# define __NR_pread __NR_pread64
+#endif
+
 #if defined __NR_pread || __ASSUME_PREAD_SYSCALL > 0
 
 # if __ASSUME_PREAD_SYSCALL == 0
@@ -48,6 +55,23 @@ __libc_pread64 (fd, buf, count, offset)
 {
   ssize_t result;
 
+
+  if (SINGLE_THREAD_P)
+    {
+     /* First try the syscall.  */
+     result = INLINE_SYSCALL (pread, 6, fd, CHECK_N (buf, count), count, 0,
+                             __LONG_LONG_PAIR ((off_t) (offset >> 32),
+                             (off_t) (offset & 0xffffffff)));
+# if __ASSUME_PREAD_SYSCALL == 0
+     if (result == -1 && errno == ENOSYS)
+     /* No system call available.  Use the emulation.  */
+     result = __emulate_pread64 (fd, buf, count, offset);
+# endif
+     return result;
+    }
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+
   /* First try the syscall.  */
   result = INLINE_SYSCALL (pread, 6, fd, CHECK_N (buf, count), count, 0,
                           __LONG_LONG_PAIR ((off_t) (offset >> 32),
@@ -57,6 +81,9 @@ __libc_pread64 (fd, buf, count, offset)
     /* No system call available.  Use the emulation.  */
     result = __emulate_pread64 (fd, buf, count, offset);
 # endif
+
+  LIBC_CANCEL_RESET (oldtype);
+
   return result;
 }