Initial piece of unified syscall support from Brecis Communications

diff --git a/libc/sysdeps/linux/mips/__uClibc_syscall.S b/libc/sysdeps/linux/mips/__uClibc_syscall.S
new file mode 100644 (file)
index 0000000..9993976
--- /dev/null
+++ b/libc/sysdeps/linux/mips/__uClibc_syscall.S
@@ -0,0 +1,45 @@
+/*
+ * $Id: __uClibc_syscall.S,v 1.1 2002/08/09 13:43:21 andersen Exp $
+ *
+ * __uClibc_syscall.S - MIPS version.
+ *
+ * Derived from x86 implementation to reduce memory footprint
+ * for syscalls.
+ *
+ * Mark Rustad, 03/21/2002
+ * Copyright 2002 BRECIS Communications Corp.
+ *
+ * uClibc is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with uClibc; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA.
+ */
+
+ #include <sys/regdef.h>
+
+       .text
+       .align  4
+       .globl  __uClibc_syscall
+       .ent    __uClibc_syscall,0
+       .type   __uClibc_syscall,@function
+__uClibc_syscall:
+       syscall
+       .set    noreorder
+       beqz    a3, 1f
+       lui     t3, %hi(errno)
+       .set    reorder
+       negu    a1, v0
+       sw      a1, %lo(errno)(t3)
+       li      v0, -1
+1:
+       j       ra
+       .end    __uClibc_syscall
+
+.Lsize:
+       .size   __uClibc_syscall,.Lsize-__uClibc_syscall
+