| 1 | /* Copyright (C) 1991-2024 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <stddef.h> |
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| 19 | #include <setjmpP.h> |
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| 20 | #include <signal.h> |
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| 21 | |
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| 22 | #undef longjmp |
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| 23 | #undef siglongjmp |
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| 24 | |
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| 25 | /* Set the signal mask to the one specified in ENV, and jump |
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| 26 | to the position specified in ENV, causing the setjmp |
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| 27 | call there to return VAL, or 1 if VAL is 0. */ |
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| 28 | void |
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| 29 | __libc_siglongjmp (sigjmp_buf env, int val) |
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| 30 | { |
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| 31 | /* Perform any cleanups needed by the frames being unwound. */ |
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| 32 | _longjmp_unwind (env, val); |
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| 33 | |
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| 34 | if (env[0].__mask_was_saved) |
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| 35 | /* Restore the saved signal mask. */ |
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| 36 | (void) __sigprocmask (SIG_SETMASK, |
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| 37 | (sigset_t *) &env[0].__saved_mask, |
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| 38 | (sigset_t *) NULL); |
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| 39 | |
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| 40 | /* Call the machine-dependent function to restore machine state. */ |
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| 41 | __longjmp (env: env[0].__jmpbuf, val: val ?: 1); |
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| 42 | } |
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| 43 | |
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| 44 | #ifndef __libc_siglongjmp |
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| 45 | # ifndef __libc_longjmp |
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| 46 | /* __libc_longjmp is a private interface for cancellation implementation |
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| 47 | in libpthread. */ |
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| 48 | strong_alias (__libc_siglongjmp, __libc_longjmp) |
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| 49 | # endif |
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| 50 | weak_alias (__libc_siglongjmp, _longjmp) |
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| 51 | weak_alias (__libc_siglongjmp, longjmp) |
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| 52 | weak_alias (__libc_siglongjmp, siglongjmp) |
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| 53 | #endif |
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| 54 | |
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