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-rw-r--r--sysdeps/nios2/setjmp.S73
1 files changed, 73 insertions, 0 deletions
diff --git a/sysdeps/nios2/setjmp.S b/sysdeps/nios2/setjmp.S
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+/* setjmp for Nios II.
+   Copyright (C) 1991-2015 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#include <jmpbuf-offsets.h>
+
+	.text
+ENTRY(setjmp)
+	movi	r5, 1
+	br	__sigsetjmp
+END(setjmp)
+
+ENTRY(_setjmp)
+	mov	r5, zero
+	br	__sigsetjmp
+END(_setjmp)
+libc_hidden_def (_setjmp)
+
+/* Save the current program position in ENV and return 0.  */
+ENTRY(__sigsetjmp)
+#ifdef	PTR_MANGLE
+	PTR_MANGLE_GUARD (r9)
+#endif
+	stw	r16, (JB_R16*4)(r4)
+	stw	r17, (JB_R17*4)(r4)
+	stw	r18, (JB_R18*4)(r4)
+	stw	r19, (JB_R19*4)(r4)
+	stw	r20, (JB_R20*4)(r4)
+	stw	r21, (JB_R21*4)(r4)
+	stw	r22, (JB_R22*4)(r4)
+	stw	fp,  (JB_FP*4)(r4)
+#ifdef	PTR_MANGLE
+	PTR_MANGLE (r6, ra, r9)
+	PTR_MANGLE (r7, sp, r9)
+	stw	r6,  (JB_RA*4)(r4)
+	stw	r7,  (JB_SP*4)(r4)
+#else
+	stw	ra,  (JB_RA*4)(r4)
+	stw	sp,  (JB_SP*4)(r4)
+#endif
+#if IS_IN (rtld)
+	/* In ld.so we never save the signal mask.  */
+	mov r2, zero
+	ret
+#else
+	/* Save the signal mask if requested.  */
+#if defined(__PIC__) || defined(PIC)
+        nextpc r2
+1:	movhi r3, %hiadj(__sigjmp_save - 1b)
+	addi r3, r3, %lo(__sigjmp_save - 1b)
+	add r2, r2, r3
+	jmp r2
+#else
+	jmpi __sigjmp_save
+#endif
+#endif
+END (__sigsetjmp)
+libc_hidden_def (__sigsetjmp)