003 File Manager
Current Path:
/usr/src/lib/libc/powerpc64/gen
usr
/
src
/
lib
/
libc
/
powerpc64
/
gen
/
📁
..
📄
Makefile.inc
(260 B)
📄
_ctx_start.S
(1.94 KB)
📄
_set_tp.c
(1.5 KB)
📄
_setjmp.S
(4.1 KB)
📄
fabs.S
(1.48 KB)
📄
flt_rounds.c
(2.16 KB)
📄
fpgetmask.c
(1.81 KB)
📄
fpgetround.c
(1.8 KB)
📄
fpgetsticky.c
(1.91 KB)
📄
fpsetmask.c
(1.96 KB)
📄
fpsetround.c
(1.95 KB)
📄
infinity.c
(578 B)
📄
makecontext.c
(3.61 KB)
📄
setjmp.S
(4.92 KB)
📄
signalcontext.c
(3.19 KB)
📄
sigsetjmp.S
(4.74 KB)
📄
syncicache.c
(3.07 KB)
Editing: signalcontext.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2004 Marcel Moolenaar, Peter Grehan * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/ucontext.h> #include <signal.h> #include <stdlib.h> #include <strings.h> typedef void (*handler_t)(uint32_t, uint32_t, uint32_t); /* Prototypes */ static void ctx_wrapper(ucontext_t *ucp, handler_t func, uint32_t sig, uint32_t sig_si, uint32_t sig_uc); __weak_reference(__signalcontext, signalcontext); int __signalcontext(ucontext_t *ucp, int sig, __sighandler_t *func) { siginfo_t *sig_si; ucontext_t *sig_uc; uintptr_t sp; /* Bail out if we don't have a valid ucontext pointer. */ if (ucp == NULL) abort(); /* * Build a 16-byte-aligned signal frame */ sp = (ucp->uc_mcontext.mc_gpr[1] - sizeof(ucontext_t)) & ~15UL; sig_uc = (ucontext_t *)sp; bcopy(ucp, sig_uc, sizeof(*sig_uc)); sp = (sp - sizeof(siginfo_t)) & ~15UL; sig_si = (siginfo_t *)sp; bzero(sig_si, sizeof(*sig_si)); sig_si->si_signo = sig; /* * Subtract 48 bytes from stack to allow for frameptr */ sp -= 6*sizeof(uint64_t); sp &= ~15UL; /* * Setup the ucontext of the signal handler. */ bzero(&ucp->uc_mcontext, sizeof(ucp->uc_mcontext)); ucp->uc_link = sig_uc; sigdelset(&ucp->uc_sigmask, sig); ucp->uc_mcontext.mc_vers = _MC_VERSION; ucp->uc_mcontext.mc_len = sizeof(struct __mcontext); ucp->uc_mcontext.mc_srr0 = (uint64_t) ctx_wrapper; ucp->uc_mcontext.mc_gpr[1] = (uint64_t) sp; ucp->uc_mcontext.mc_gpr[3] = (uint64_t) func; ucp->uc_mcontext.mc_gpr[4] = (uint64_t) sig; ucp->uc_mcontext.mc_gpr[5] = (uint64_t) sig_si; ucp->uc_mcontext.mc_gpr[6] = (uint64_t) sig_uc; return (0); } static void ctx_wrapper(ucontext_t *ucp, handler_t func, uint32_t sig, uint32_t sig_si, uint32_t sig_uc) { (*func)(sig, sig_si, sig_uc); if (ucp->uc_link == NULL) exit(0); setcontext((const ucontext_t *)ucp->uc_link); /* should never get here */ abort(); /* NOTREACHED */ }
Upload File
Create Folder