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authorEric Andersen <andersen@codepoet.org>2002-08-09 13:43:21 +0000
committerEric Andersen <andersen@codepoet.org>2002-08-09 13:43:21 +0000
commitb8509cedca94f5057ef5d95d48a71babc999420b (patch)
tree869c16cee748f19f8434338a20b44fbac1ed4ddd /libc/sysdeps/linux
parent63c324cb11bec09f26d4461242bb20040491bc8b (diff)
Initial piece of unified syscall support from Brecis Communications
Diffstat (limited to 'libc/sysdeps/linux')
-rw-r--r--libc/sysdeps/linux/mips/__uClibc_syscall.S45
1 files changed, 45 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/mips/__uClibc_syscall.S b/libc/sysdeps/linux/mips/__uClibc_syscall.S
new file mode 100644
index 000000000..9993976d4
--- /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
+