1 /* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
4 * We are making the OpenFlow specification and associated documentation
5 * (Software) available for public use and benefit with the expectation
6 * that others will use, modify and enhance the Software and contribute
7 * those enhancements back to the community. However, since we would
8 * like to make the Software available for broadest use, with as few
9 * restrictions as possible permission is hereby granted, free of
10 * charge, to any person obtaining a copy of this Software to deal in
11 * the Software under the copyrights without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
24 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
25 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
26 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
29 * The name and trademarks of copyright holder(s) may NOT be used in
30 * advertising or publicity pertaining to the Software or any
31 * derivatives without specific, written prior permission.
45 #define THIS_MODULE VLM_fault
48 fault_handler(int sig_nr)
50 VLOG_EMER("Caught signal %d.", sig_nr);
55 signal(sig_nr, SIG_DFL);
64 frame[0] points to the next frame.
65 frame[1] points to the return address. */
67 for (frame = __builtin_frame_address(0);
68 frame != NULL && frame[0] != NULL;
71 if (!dladdr(frame[1], &addrinfo) || !addrinfo.dli_sname) {
72 fprintf(stderr, " 0x%08"PRIxPTR"\n", (uintptr_t) frame[1]);
74 fprintf(stderr, " 0x%08"PRIxPTR" (%s+0x%x)\n",
75 (uintptr_t) frame[1], addrinfo.dli_sname,
76 (char *) frame[1] - (char *) addrinfo.dli_saddr);
83 register_fault_handlers(void)
85 signal(SIGABRT, fault_handler);
86 signal(SIGBUS, fault_handler);
87 signal(SIGFPE, fault_handler);
88 signal(SIGILL, fault_handler);
89 signal(SIGSEGV, fault_handler);