| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 1991-2015 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | /* Versioned copy of sysdeps/generic/longjmp.c modified for AltiVec support. */ |
| 19 | |
| 20 | #include <shlib-compat.h> |
| 21 | #include <stddef.h> |
| 22 | #include <setjmp.h> |
| 23 | #include <signal.h> |
| 24 | |
| 25 | extern void __vmx__longjmp (__jmp_buf __env, int __val) |
| 26 | __attribute__ ((noreturn)); |
| 27 | extern void __vmx__libc_longjmp (sigjmp_buf env, int val) |
| 28 | __attribute__ ((noreturn)); |
| 29 | libc_hidden_proto (__vmx__libc_longjmp) |
| 30 | |
| 31 | /* Set the signal mask to the one specified in ENV, and jump |
| 32 | to the position specified in ENV, causing the setjmp |
| 33 | call there to return VAL, or 1 if VAL is 0. */ |
| 34 | void |
| 35 | __vmx__libc_siglongjmp (sigjmp_buf env, int val) |
| 36 | { |
| 37 | /* Perform any cleanups needed by the frames being unwound. */ |
| 38 | _longjmp_unwind (env, val); |
| 39 | |
| 40 | if (env[0].__mask_was_saved) |
| 41 | /* Restore the saved signal mask. */ |
| 42 | (void) __sigprocmask (SIG_SETMASK, &env[0].__saved_mask, |
| 43 | (sigset_t *) NULL); |
| 44 | |
| 45 | /* Call the machine-dependent function to restore machine state. */ |
| 46 | __vmx__longjmp (env[0].__jmpbuf, val ?: 1); |
| 47 | } |
| 48 | |
| 49 | strong_alias (__vmx__libc_siglongjmp, __vmx__libc_longjmp) |
| 50 | libc_hidden_def (__vmx__libc_longjmp) |
| 51 | weak_alias (__vmx__libc_siglongjmp, __vmx_longjmp) |
| 52 | weak_alias (__vmx__libc_siglongjmp, __vmxlongjmp) |
| 53 | weak_alias (__vmx__libc_siglongjmp, __vmxsiglongjmp) |
| 54 | |
| 55 | |
| 56 | default_symbol_version (__vmx__libc_longjmp, __libc_longjmp, GLIBC_PRIVATE); |
| 57 | default_symbol_version (__vmx__libc_siglongjmp, __libc_siglongjmp, GLIBC_PRIVATE); |
| 58 | versioned_symbol (libc, __vmx_longjmp, _longjmp, GLIBC_2_3_4); |
| 59 | versioned_symbol (libc, __vmxlongjmp, longjmp, GLIBC_2_3_4); |
| 60 | versioned_symbol (libc, __vmxsiglongjmp, siglongjmp, GLIBC_2_3_4); |