/usr/src/blcr-0.8.2/libcr/cr_run.c is in blcr-dkms 0.8.2-15ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | /*
* Berkeley Lab Checkpoint/Restart (BLCR) for Linux is Copyright (c)
* 2008, The Regents of the University of California, through Lawrence
* Berkeley National Laboratory (subject to receipt of any required
* approvals from the U.S. Dept. of Energy). All rights reserved.
*
* Portions may be copyrighted by others, as may be noted in specific
* copyright notices within specific files.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: cr_run.c,v 1.28.8.1 2009/02/27 08:36:21 phargrov Exp $
*
* This file builds the "libcr_run" target library
*/
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <ucontext.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <limits.h>
#include <features.h>
#include "cr_private.h"
#define CR_SIG_HANDLER cri_run_sig_handler
#define CR_LINK_ME_VAR cr_run_link_me
#ifdef LIBCR_SIGNAL_ONLY
/* Initialization logic. */
#include "cr_libinit.c"
#endif /* LIBCR_SIGNAL_ONLY */
// Signal handler to dispatch the request
//
// WARNING: Must only be called as a signal handler.
// Any other calls may not return correctly (see final lines).
#ifdef CR_RUN_ASM_HANDLER
CR_RUN_ASM_HANDLER(CR_SIG_HANDLER)
#else
cri_syscall3X(int, crsig_chkpt, CR_ASM_NR_ioctl, int, int, void*)
void CR_SIG_HANDLER(int signr, siginfo_t *siginfo, void *context)
{
#if LIBCR_TRACING
int pid = (int)getpid();
#endif
int token = siginfo->si_pid;
int rc, local_errno;
LIBCR_TRACE(LIBCR_TRACE_INFO, "[%d] signal %d received, fd=%d", pid, signr, token);
#ifdef SI_KERNEL
if (siginfo->si_code != SI_KERNEL) {
LIBCR_TRACE(LIBCR_TRACE_INFO, "[%d] Ignoring false signal", pid);
goto out;
}
#endif
LIBCR_TRACE(LIBCR_TRACE_INFO, "[%d] START", pid);
rc = crsig_chkpt(token, CR_OP_HAND_CHKPT, (void*)_CR_CHECKPOINT_STUB, &local_errno);
if (rc < 0) {
LIBCR_TRACE(LIBCR_TRACE_INFO, "[%d] checkpoint failed w/ errno=%d", pid, local_errno);
}
LIBCR_TRACE(LIBCR_TRACE_INFO, "[%d] DONE", pid);
out:
// Ugh!! Bug 2003: sa_restorer might be corrupted.
// So, we return "directly" when supported
#if defined(cri_sigreturn)
cri_sigreturn(signr, siginfo, context);
#endif
return; /* so "out:" is never the last statement (avoid gcc error) */
}
#endif /* CR_RUN_ASM_HANDLER */
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