diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/sigstack.c')
-rw-r--r-- | REORG.TODO/sysdeps/mach/hurd/sigstack.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/sigstack.c b/REORG.TODO/sysdeps/mach/hurd/sigstack.c new file mode 100644 index 0000000000..484efb627a --- /dev/null +++ b/REORG.TODO/sysdeps/mach/hurd/sigstack.c @@ -0,0 +1,43 @@ +/* Copyright (C) 1992-2017 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 <errno.h> +#include <signal.h> +#include <hurd.h> + +/* Run signals handlers on the stack specified by SS (if not NULL). + If OSS is not NULL, it is filled in with the old signal stack status. */ +int +sigstack (struct sigstack *ss, struct sigstack *oss) +{ + stack_t as, oas; + + as.ss_sp = ss->ss_sp; + as.ss_size = 0; + as.ss_flags = 0; + + if (__sigaltstack (&as, &oas) < 0) + return -1; + + if (oss != NULL) + { + oss->ss_sp = oas.ss_sp; + oss->ss_onstack = oas.ss_flags & SS_ONSTACK; + } + + return 0; +} |