zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/i960/setjmp.S b/ap/build/uClibc/libc/sysdeps/linux/i960/setjmp.S
new file mode 100644
index 0000000..2133ef5
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/i960/setjmp.S
@@ -0,0 +1,124 @@
+/*******************************************************************************
+ *
+ * Copyright (c) 1993 Intel Corporation
+ *
+ * Intel hereby grants you permission to copy, modify, and distribute this
+ * software and its documentation. Intel grants this permission provided
+ * that the above copyright notice appears in all copies and that both the
+ * copyright notice and this permission notice appear in supporting
+ * documentation. In addition, Intel grants this permission provided that
+ * you prominently mark as "not part of the original" any modifications
+ * made to this software or documentation, and that the name of Intel
+ * Corporation not be used in advertising or publicity pertaining to
+ * distribution of the software or the documentation without specific,
+ * written prior permission.
+ *
+ * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR
+ * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY
+ * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or
+ * representations regarding the use of, or the results of the use of,
+ * the software and documentation in terms of correctness, accuracy,
+ * reliability, currentness, or otherwise; and you rely on the software,
+ * documentation and results solely at your own risk.
+ *
+ * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS,
+ * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES
+ * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM
+ * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER.
+ *
+ ******************************************************************************/
+
+/***************************************************************************
+ *
+ * Modified from the original in order to fit with
+ * uClibc's setjmp, _setjmp, __sigsetjmp and ___sigjmp_save.
+ *
+ *
+ * int setjmp (jmp_buf __env) is the BSD style setjmp function.
+ * It simply calls __sigsetjmp(env, 1)
+ *
+ * int _setjmp (jmp_buf __env) is the posix style setjmp function.
+ * It simply calls __sigsetjmp(env, 0)
+ * This is the one normally used.
+ *
+ ***************************************************************************/
+
+ .text
+ .align 4
+ .globl _setjmp
+ .globl __setjmp
+
+_setjmp:
+ mov 1, g1 /* __sigsetjmp(env, 1) */
+ bx __sigsetjmp
+
+__setjmp:
+ mov 0, g1 /* __sigsetjmp(env, 0) */
+ bx __sigsetjmp
+
+
+/******************************************************************************/
+/* */
+/* setjmp(), longjmp() */
+/* */
+/******************************************************************************/
+ .file "setjmp.S"
+ .text
+ /* .link_pix */
+
+ .align 4
+ .globl __sigsetjmp
+__sigsetjmp:
+ flushreg
+ andnot 0xf,pfp,g2 /* get pfp, mask out return status bits */
+ st g2, 0x58(g0) /* save fp of caller*/
+ /* save globals not killed by the calling convention */
+ stq g8, 0x40(g0) /* save g8-g11*/
+ st g12, 0x50(g0) /* save g12*/
+ st g14, 0x54(g0) /* save g14*/
+ /* save previous frame local registers */
+ ldq (g2), g4 /* get previous frame pfp, sp, rip, r3 */
+ stq g4, (g0) /* save pfp, sp, rip, r3 */
+ ldq 0x10(g2), g4 /* get previous frame r4-r7 */
+ stq g4, 0x10(g0) /* save r4-r7 */
+ ldq 0x20(g2), g4 /* get previous frame r8-r11 */
+ stq g4, 0x20(g0) /* save r8-r11 */
+ ldq 0x30(g2), g4 /* get previous frame r12-r15 */
+ stq g4, 0x30(g0) /* save r12-r15 */
+
+ bx ___sigjmp_save
+
+ /*
+ * fake a return to the place that called the corresponding __sigsetjmp
+ */
+ .align 4
+ .globl ___longjmp
+___longjmp:
+ call 0f /* ensure there is at least one stack frame */
+
+0:
+ flushreg /* do this before swapping stack */
+ ld 0x58(g0), pfp /* get fp of caller of setjmp */
+ /* restore local registers
+ * the following code modifies the frame of the function which originally
+ * called setjmp.
+ */
+ ldq (g0), g4 /* get pfp, sp, rip, r3 */
+ stq g4, (pfp) /* restore pfp, sp, rip, r3 */
+ ldq 0x10(g0), g4 /* get r4-r7 */
+ stq g4, 0x10(pfp) /* restore r4-r7 */
+ ldq 0x20(g0), g4 /* get r8-r11 */
+ stq g4, 0x20(pfp) /* restore r8-r11 */
+ ldq 0x30(g0), g4 /* get r12-r15 */
+ stq g4, 0x30(pfp) /* restore r12-r15 */
+ /* restore global registers */
+ ldq 0x40(g0), g8 /* get old g8-g11 values */
+ ld 0x50(g0), g12 /* get old g12 value */
+ ld 0x54(g0), g14 /* get old g14 value */
+
+ mov g1, g0 /* get return value */
+ cmpo g0, 0 /* make sure it is not zero */
+ bne 0f
+ mov 1, g0 /* return 1 by default */
+0:
+ ret /* return to caller of __sigsetjmp */