[MIPS64] libc/libm support
libc/libm support for MIPS64 targets
Change-Id: I8271941d418612a286be55495f0e95822f90004f
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Raghu Gandham <raghu.gandham@imgtec.com>
diff --git a/libc/arch-mips64/bionic/syscall.S b/libc/arch-mips64/bionic/syscall.S
new file mode 100644
index 0000000..08aa705
--- /dev/null
+++ b/libc/arch-mips64/bionic/syscall.S
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <machine/asm.h>
+#include <asm/unistd.h>
+
+#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
+FRAMESZ = MKFSIZ(6,0)
+#else
+FRAMESZ = MKFSIZ(0,1)
+FRAME_GP = FRAMESZ-1*REGSZ
+#endif
+
+LEAF(syscall,FRAMESZ)
+ PTR_SUBU sp, FRAMESZ # allocate stack frame
+ SETUP_GP64(FRAME_GP,syscall)
+ SAVE_GP(FRAME_GP)
+ move v0, a0 # syscall number to v0
+ move a0, a1 # shift args down
+ move a1, a2
+ move a2, a3
+#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
+ REG_L a3, FRAMESZ+4*REGSZ(sp)
+ REG_L t0, FRAMESZ+5*REGSZ(sp)
+ REG_L t1, FRAMESZ+6*REGSZ(sp)
+ REG_S t0, 4*REGSZ(sp)
+ REG_S t1, 5*REGSZ(sp)
+#else
+ move a3, a4
+ move a4, a5
+ REG_L a5, FRAMESZ(sp)
+#endif
+ syscall
+ move a0, v0
+ bnez a3, 1f
+ RESTORE_GP64
+ PTR_ADDU sp, FRAMESZ
+ j ra
+1:
+ LA t9,__set_errno
+ RESTORE_GP64
+ PTR_ADDU sp, FRAMESZ
+ j t9
+ END(syscall)