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| author | Vineet Gupta <vgupta@synopsys.com> | 2018-10-23 11:38:32 -0700 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2020-07-10 16:08:44 -0700 |
| commit | 0e7d930c4c11de896fe807f67fa1eb756c9c1e05 (patch) | |
| tree | a2ac4ff092909d6071a8ddb6e37c9c6c0ad31d38 /sysdeps/arc/setjmp.S | |
| parent | 04deeaa9ea74b0679dfc9d9155a37b6425f19a9f (diff) | |
| download | glibc-0e7d930c4c11de896fe807f67fa1eb756c9c1e05.tar glibc-0e7d930c4c11de896fe807f67fa1eb756c9c1e05.tar.gz glibc-0e7d930c4c11de896fe807f67fa1eb756c9c1e05.tar.bz2 glibc-0e7d930c4c11de896fe807f67fa1eb756c9c1e05.zip | |
ARC: ABI Implementation
This code deals with the ARC ABI.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/arc/setjmp.S')
| -rw-r--r-- | sysdeps/arc/setjmp.S | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/sysdeps/arc/setjmp.S b/sysdeps/arc/setjmp.S new file mode 100644 index 0000000000..01cc3af982 --- /dev/null +++ b/sysdeps/arc/setjmp.S @@ -0,0 +1,66 @@ +/* setjmp for ARC. + Copyright (C) 2020 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 + <https://www.gnu.org/licenses/>. */ + + +#include <sysdep.h> + +/* Upon entry r0 = jump buffer into which regs will be saved. */ +ENTRY (setjmp) + b.d __sigsetjmp + mov r1, 1 /* save signals. */ +END (setjmp) + +/* Upon entry r0 = jump buffer into which regs will be saved. */ +ENTRY (_setjmp) + b.d __sigsetjmp + mov r1, 0 /* don't save signals. */ +END (_setjmp) +libc_hidden_def (_setjmp) + +/* Upon entry + r0 = jump buffer into which regs will be saved + r1 = do we need to save signals. */ +ENTRY (__sigsetjmp) + + /* Make a note of where longjmp will return to. + that will be right next to this setjmp call-site in BLINK + since "C" caller of this routine will do a branch-n-link. */ + + STR (blink, r0, 0) + STR (sp, r0, 1) + STR (fp, r0, 2) + STR (gp, r0, 3) + + STR (r13, r0, 4) + STR (r14, r0, 5) + STR (r15, r0, 6) + STR (r16, r0, 7) + STR (r17, r0, 8) + STR (r18, r0, 9) + STR (r19, r0, 10) + STR (r20, r0, 11) + STR (r21, r0, 12) + STR (r22, r0, 13) + STR (r23, r0, 14) + STR (r24, r0, 15) + + b __sigjmp_save + +END (__sigsetjmp) + +libc_hidden_def (__sigsetjmp) |