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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)