2014-03-21 Sabrini Ni <sabrinanitw@gmail.com>

* nds32/syscall_argv.S: Correct the method to set errno.
        * nds32/syscall_argvlen.S: Ditto.
        * nds32/syscall_chdir.S: Ditto.
        * nds32/syscall_chmod.S: Ditto.
        * nds32/syscall_close.S: Ditto.
        * nds32/syscall_error_handler.S: Ditto.
        * nds32/syscall_fstat.S: Ditto.
        * nds32/syscall_getpid.S: Ditto.
        * nds32/syscall_gettimeofday.S: Ditto.
        * nds32/syscall_isatty.S: Ditto.
        * nds32/syscall_kill.S: Ditto.
        * nds32/syscall_link.S: Ditto.
        * nds32/syscall_lseek.S: Ditto.
        * nds32/syscall_open.S: Ditto.
        * nds32/syscall_read.S: Ditto.
        * nds32/syscall_rename.S: Ditto.
        * nds32/syscall_sbrk.S: Ditto.
        * nds32/syscall_stat.S: Ditto.
        * nds32/syscall_system.S: Ditto.
        * nds32/syscall_time.S: Ditto.
        * nds32/syscall_times.S: Ditto.
        * nds32/syscall_unlink.S: Ditto.
        * nds32/syscall_utime.S: Ditto.
        * nds32/syscall_write.S: Ditto.

libgloss/ChangeLog

@@ -1,3 +1,30 @@
+2014-03-21  Sabrini Ni  <sabrinanitw@gmail.com>
+
+	* nds32/syscall_argv.S: Correct the method to set errno.
+	* nds32/syscall_argvlen.S: Ditto.
+	* nds32/syscall_chdir.S: Ditto.
+	* nds32/syscall_chmod.S: Ditto.
+	* nds32/syscall_close.S: Ditto.
+	* nds32/syscall_error_handler.S: Ditto.
+	* nds32/syscall_fstat.S: Ditto.
+	* nds32/syscall_getpid.S: Ditto.
+	* nds32/syscall_gettimeofday.S: Ditto.
+	* nds32/syscall_isatty.S: Ditto.
+	* nds32/syscall_kill.S: Ditto.
+	* nds32/syscall_link.S: Ditto.
+	* nds32/syscall_lseek.S: Ditto.
+	* nds32/syscall_open.S: Ditto.
+	* nds32/syscall_read.S: Ditto.
+	* nds32/syscall_rename.S: Ditto.
+	* nds32/syscall_sbrk.S: Ditto.
+	* nds32/syscall_stat.S: Ditto.
+	* nds32/syscall_system.S: Ditto.
+	* nds32/syscall_time.S: Ditto.
+	* nds32/syscall_times.S: Ditto.
+	* nds32/syscall_unlink.S: Ditto.
+	* nds32/syscall_utime.S: Ditto.
+	* nds32/syscall_write.S: Ditto.
+
 2014-03-21  Sabrini Ni  <sabrinanitw@gmail.com>
 
 	* nds32/crt0.S: Use pseudo-instruction "bal frame" to replace 

libgloss/nds32/syscall_argv.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _argv, SYS_argv

libgloss/nds32/syscall_argvlen.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _argvlen, SYS_argvlen

libgloss/nds32/syscall_chdir.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _chdir, SYS_chdir

libgloss/nds32/syscall_chmod.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _chmod, SYS_chmod

libgloss/nds32/syscall_close.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _close, SYS_close

libgloss/nds32/syscall_error_handler.S

@@ -31,7 +31,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
+	.extern	_impure_ptr	/* The first element is _errno.  */
 	.text
 	.global	__syscall_error_handler
 	.type	__syscall_error_handler, @function
@@ -41,7 +41,8 @@ __syscall_error_handler:
 	addi	$r1, $r0, 1
 	bnez	$r1, 1f		/* Branch if success.  */
 	syscall	SYS_geterr	/* There is something wrong.  */
-	s.w	$r0, errno	/* Store error code into errno.  */
+	l.w     $r15, _impure_ptr
+	swi     $r0, [$r15]     /* Set errno.  */
 	move	$r0, -1
 1:
 	ret

libgloss/nds32/syscall_fstat.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _fstat, SYS_fstat

libgloss/nds32/syscall_getpid.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _getpid, SYS_getpid

libgloss/nds32/syscall_gettimeofday.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _gettimeofday, SYS_gettimeofday

libgloss/nds32/syscall_isatty.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _isatty, SYS_isatty

libgloss/nds32/syscall_kill.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _kill, SYS_kill

libgloss/nds32/syscall_link.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _link, SYS_link

libgloss/nds32/syscall_lseek.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _lseek, SYS_lseek

libgloss/nds32/syscall_open.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _open, SYS_open

libgloss/nds32/syscall_read.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _read, SYS_read

libgloss/nds32/syscall_rename.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _rename, SYS_rename

libgloss/nds32/syscall_sbrk.S

@@ -30,6 +30,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "../syscall.h"
 #include "syscall_extra.h"
 
+	.extern	_impure_ptr	/* The first element is _errno.  */
 	.extern	_end
 	.global	_sbrk
 
@@ -66,7 +67,8 @@ _sbrk:
 
 .Lerror:
 	movi	$r0, 12
-	s.w	$r0, errno	/* Set error code: 12 (ENOMEM) to errno.  */
+	l.w     $r15, _impure_ptr
+	swi     $r0, [$r15]     /* Set errno.  */
 	movi	$r0, -1		/* Reture value is -1.  */
 	ret
 

libgloss/nds32/syscall_stat.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _stat, SYS_stat

libgloss/nds32/syscall_system.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _system, SYS_system

libgloss/nds32/syscall_time.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _time, SYS_time

libgloss/nds32/syscall_times.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _times, SYS_times

libgloss/nds32/syscall_unlink.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _unlink, SYS_unlink

libgloss/nds32/syscall_utime.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _utime, SYS_utime

libgloss/nds32/syscall_write.S

@@ -31,5 +31,4 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "syscall_extra.h"
 
 
-	.extern	errno
 SYS_WRAPPER _write, SYS_write