2005-03-22 Jeff Johnston <jjohnstn@redhat.com>

        * configure.host: For arc, set -DREENTRANT_SYSCALLS_PROVIDED flag on.
        * libc/sys/arc/syscalls.c: Change functions to use __errno_r rather
        than errno.

1 files changed, 8 insertions, 7 deletions

diff --git a/newlib/libc/sys/arc/syscalls.c b/newlib/libc/sys/arc/syscalls.c
index 107989b00..9c578451a 100644
--- a/newlib/libc/sys/arc/syscalls.c
+++ b/newlib/libc/sys/arc/syscalls.c
@@ -15,7 +15,7 @@ _read_r (struct _reent *r, int fd, void *buf, size_t nbytes)
 
   SYSCALL (SYS_read, rc, err, fd, buf, nbytes);
   if (err)
-    errno = err;
+    __errno_r (r) = err;
   return rc;
 }
 
@@ -27,7 +27,7 @@ _write_r (struct _reent *r, int fd, const void *buf, size_t nbytes)
 
   SYSCALL (SYS_write, rc, err, fd, buf, nbytes);
   if (err)
-    errno = err;
+    __errno_r (r) = err;
   return rc;
 }
 
@@ -48,7 +48,8 @@ _open_r (struct _reent *r, const char *buf, int flags, int mode)
 #endif
 
   SYSCALL (SYS_open, rc, err, buf, flags, mode);
-  errno = err;
+  if (err)
+    __errno_r (r) = err;
   return rc;
 }
 
@@ -59,7 +60,7 @@ _close_r (struct _reent *r, int fd)
 
   SYSCALL (SYS_close, rc, err, fd, 0, 0);
   if (err)
-    errno = err;
+    __errno_r (r) = err;
   return rc;
 }
 
@@ -71,7 +72,7 @@ _lseek_r (struct _reent *r, int fd,  off_t offset, int whence)
 
   SYSCALL (SYS_lseek, rc, err, fd, offset, whence);
   if (err)
-    errno = err;
+    __errno_r (r) = err;
   return rc;
 }
 
@@ -82,7 +83,7 @@ _fstat_r (struct _reent *r, int fd, struct stat *buf)
 
   SYSCALL (SYS_fstat, rc, err, fd, buf, 0);
   if (err)
-    errno = err;
+    __errno_r (r) = err;
   return rc;
 }
 
@@ -125,6 +126,6 @@ _kill_r (struct _reent *r, int pid, int sig)
 
   SYSCALL (SYS_kill, rc, err, pid, sig, 0);
   if (err)
-    errno = err;
+    __errno_r (r) = err;
   return rc;
 }