| 1 | /* Copyright (C) 1991-2022 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 | /* Versioned copy of sysdeps/generic/longjmp.c modified for AltiVec support. */ |
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| 19 | |
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| 20 | #include <shlib-compat.h> |
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| 21 | #include <stddef.h> |
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| 22 | #include <setjmp.h> |
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| 23 | #include <signal.h> |
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| 24 | |
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| 25 | extern void __vmx__longjmp (__jmp_buf __env, int __val) |
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| 26 | __attribute__ ((noreturn)); |
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| 27 | extern void __vmx__libc_longjmp (sigjmp_buf env, int val) |
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| 28 | __attribute__ ((noreturn)); |
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| 29 | libc_hidden_proto (__vmx__libc_longjmp) |
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| 30 | |
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| 31 | /* Set the signal mask to the one specified in ENV, and jump |
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| 32 | to the position specified in ENV, causing the setjmp |
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| 33 | call there to return VAL, or 1 if VAL is 0. */ |
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| 34 | void |
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| 35 | __vmx__libc_siglongjmp (sigjmp_buf env, int val) |
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| 36 | { |
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| 37 | /* Perform any cleanups needed by the frames being unwound. */ |
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| 38 | _longjmp_unwind (env, val); |
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| 39 | |
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| 40 | if (env[0].__mask_was_saved) |
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| 41 | /* Restore the saved signal mask. */ |
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| 42 | (void) __sigprocmask (SIG_SETMASK, &env[0].__saved_mask, |
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| 43 | (sigset_t *) NULL); |
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| 44 | |
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| 45 | /* Call the machine-dependent function to restore machine state. */ |
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| 46 | __vmx__longjmp (env: env[0].__jmpbuf, val: val ?: 1); |
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| 47 | } |
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| 48 | |
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| 49 | strong_alias (__vmx__libc_siglongjmp, __vmx__libc_longjmp) |
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| 50 | libc_hidden_def (__vmx__libc_longjmp) |
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| 51 | |
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| 52 | strong_alias (__vmx__libc_longjmp, __libc_longjmp) |
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| 53 | strong_alias (__vmx__libc_siglongjmp, __libc_siglongjmp) |
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| 54 | versioned_symbol (libc, __vmx__libc_siglongjmp, _longjmp, GLIBC_2_3_4); |
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| 55 | versioned_symbol (libc, __vmx__libc_siglongjmp, longjmp, GLIBC_2_3_4); |
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| 56 | versioned_symbol (libc, __vmx__libc_siglongjmp, siglongjmp, GLIBC_2_3_4); |
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| 57 | |
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