2015-01-18 14:29:12 +08:00
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/* setjmp for Nios II.
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2017-01-01 08:14:16 +08:00
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Copyright (C) 1991-2017 Free Software Foundation, Inc.
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2015-01-18 14:29:12 +08:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#include <jmpbuf-offsets.h>
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.text
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ENTRY(setjmp)
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movi r5, 1
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br __sigsetjmp
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END(setjmp)
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ENTRY(_setjmp)
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mov r5, zero
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br __sigsetjmp
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END(_setjmp)
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libc_hidden_def (_setjmp)
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/* Save the current program position in ENV and return 0. */
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ENTRY(__sigsetjmp)
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#ifdef PTR_MANGLE
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PTR_MANGLE_GUARD (r9)
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#endif
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stw r16, (JB_R16*4)(r4)
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stw r17, (JB_R17*4)(r4)
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stw r18, (JB_R18*4)(r4)
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stw r19, (JB_R19*4)(r4)
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stw r20, (JB_R20*4)(r4)
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stw r21, (JB_R21*4)(r4)
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stw r22, (JB_R22*4)(r4)
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stw fp, (JB_FP*4)(r4)
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#ifdef PTR_MANGLE
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PTR_MANGLE (r6, ra, r9)
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PTR_MANGLE (r7, sp, r9)
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stw r6, (JB_RA*4)(r4)
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stw r7, (JB_SP*4)(r4)
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#else
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stw ra, (JB_RA*4)(r4)
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stw sp, (JB_SP*4)(r4)
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#endif
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#if IS_IN (rtld)
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/* In ld.so we never save the signal mask. */
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mov r2, zero
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ret
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#else
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/* Save the signal mask if requested. */
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#if defined(__PIC__) || defined(PIC)
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nextpc r2
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1: movhi r3, %hiadj(__sigjmp_save - 1b)
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addi r3, r3, %lo(__sigjmp_save - 1b)
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add r2, r2, r3
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jmp r2
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#else
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jmpi __sigjmp_save
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#endif
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#endif
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END (__sigsetjmp)
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libc_hidden_def (__sigsetjmp)
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