diff options
Diffstat (limited to 'sysdeps/nios2/setjmp.S')
| -rw-r--r-- | sysdeps/nios2/setjmp.S | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/sysdeps/nios2/setjmp.S b/sysdeps/nios2/setjmp.S new file mode 100644 index 0000000000..2a63c071d5 --- /dev/null +++ b/sysdeps/nios2/setjmp.S @@ -0,0 +1,73 @@ +/* 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) |