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authorPaul Mundt <lethal@linux-sh.org>2008-01-08 08:44:43 +0000
committerPaul Mundt <lethal@linux-sh.org>2008-01-08 08:44:43 +0000
commitb20e5adb661f95f639324b252a3028ac0abeca2f (patch)
tree19a5b2c0ae734b93029a80263afa486d7376cb02 /libc/sysdeps/linux/sh64/__longjmp.S
parentb4937a448bcd897c84de6abb36c39eff492a2b91 (diff)
Bring sh64 support back from the dead.
Diffstat (limited to 'libc/sysdeps/linux/sh64/__longjmp.S')
-rw-r--r--libc/sysdeps/linux/sh64/__longjmp.S141
1 files changed, 141 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sh64/__longjmp.S b/libc/sysdeps/linux/sh64/__longjmp.S
new file mode 100644
index 000000000..ca7925f76
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/__longjmp.S
@@ -0,0 +1,141 @@
+/* __longjmp for SH-5.
+ Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+
+#define _SETJMP_H
+#define _ASM
+#include <bits/setjmp.h>
+
+
+#define INTEGER(reg,offset) ld.q r2, offset*8, reg
+#define DOUBLE(reg,offset) fld.d r2, offset*8, reg
+
+
+ .file "__longjmp.S"
+
+ .section .text64,"xa"
+ .align 2
+
+ .global __longjmp
+ .type __longjmp,@function
+
+__longjmp:
+ /*
+ * extern void __longjmp(jmp_buf env, int val);
+ *
+ * r2 == env
+ * r3 == val
+ * r4 == temporary
+ */
+
+ /* callee-save registers R10-R16 */
+ INTEGER(r10, __SETJMP_INT(0))
+ INTEGER(r11, __SETJMP_INT(1))
+ INTEGER(r12, __SETJMP_INT(2))
+ INTEGER(r13, __SETJMP_INT(3))
+ INTEGER(r14, __SETJMP_INT(4))
+ INTEGER(r15, __SETJMP_INT(5))
+ INTEGER(r16, __SETJMP_INT(6))
+
+ /* callee-save registers R28-R35 */
+ INTEGER(r28, __SETJMP_INT(7))
+ INTEGER(r29, __SETJMP_INT(8))
+ INTEGER(r30, __SETJMP_INT(9))
+ INTEGER(r31, __SETJMP_INT(10))
+ INTEGER(r32, __SETJMP_INT(11))
+ INTEGER(r33, __SETJMP_INT(12))
+ INTEGER(r34, __SETJMP_INT(13))
+ INTEGER(r35, __SETJMP_INT(14))
+
+ /* callee-save registers R44-R59 */
+ INTEGER(r44, __SETJMP_INT(15))
+ INTEGER(r45, __SETJMP_INT(16))
+ INTEGER(r46, __SETJMP_INT(17))
+ INTEGER(r47, __SETJMP_INT(18))
+ INTEGER(r48, __SETJMP_INT(19))
+ INTEGER(r49, __SETJMP_INT(20))
+ INTEGER(r50, __SETJMP_INT(21))
+ INTEGER(r51, __SETJMP_INT(22))
+ INTEGER(r52, __SETJMP_INT(23))
+ INTEGER(r53, __SETJMP_INT(24))
+ INTEGER(r54, __SETJMP_INT(25))
+ INTEGER(r55, __SETJMP_INT(26))
+ INTEGER(r56, __SETJMP_INT(27))
+ INTEGER(r57, __SETJMP_INT(28))
+ INTEGER(r58, __SETJMP_INT(29))
+ INTEGER(r59, __SETJMP_INT(30))
+
+ #if __SETJMP_NUM_INT != 31
+ #error __SETJMP_NUM_INT does agree with expected value
+ #endif
+
+#if __SETJMP_NUM_DBL > 0
+ /* callee-save registers FR12-FR15 */
+ DOUBLE(d12, __SETJMP_DBL(0))
+ DOUBLE(d14, __SETJMP_DBL(1))
+
+ /* callee-save registers FR36-FR63 */
+ DOUBLE(d36, __SETJMP_DBL(2))
+ DOUBLE(d38, __SETJMP_DBL(3))
+ DOUBLE(d40, __SETJMP_DBL(4))
+ DOUBLE(d42, __SETJMP_DBL(5))
+ DOUBLE(d44, __SETJMP_DBL(6))
+ DOUBLE(d46, __SETJMP_DBL(7))
+ DOUBLE(d48, __SETJMP_DBL(8))
+ DOUBLE(d50, __SETJMP_DBL(9))
+ DOUBLE(d52, __SETJMP_DBL(10))
+ DOUBLE(d54, __SETJMP_DBL(11))
+ DOUBLE(d56, __SETJMP_DBL(12))
+ DOUBLE(d58, __SETJMP_DBL(13))
+ DOUBLE(d60, __SETJMP_DBL(14))
+ DOUBLE(d62, __SETJMP_DBL(15))
+
+ #if __SETJMP_NUM_DBL != 16
+ #error __SETJMP_NUM_DBL does agree with expected value
+ #endif
+
+#endif /* __SETJMP_NUM_DBL > 0 */
+
+ /* callee-save registers TR5-TR7 */
+ INTEGER(r4, __SETJMP_TRG(0))
+ ptabs r4, tr5
+ INTEGER(r4, __SETJMP_TRG(1))
+ ptabs r4, tr6
+ INTEGER(r4, __SETJMP_TRG(2))
+ ptabs r4, tr7
+
+ #if __SETJMP_NUM_TRG != 3
+ #error __SETJMP_NUM_TRG does agree with expected value
+ #endif
+
+ /* restore Linkage Register (LR) for __longjmp return */
+ INTEGER(r18, __SETJMP_LR)
+ ptabs/l r18, tr0
+
+ /*
+ * must ensure __longjmp() never returns 0.
+ * if 'val' == 0, then return 1.
+ */
+ cmpeq r3, r63, r2 /* r2 = (r3==0) ? 1 : 0; */
+ add.l r3, r2, r2 /* return value */
+
+ /* return to caller */
+ blink tr0, r63
+
+libc_hidden_def(__longjmp)