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- added Chris's crashcatcher improvements.
SVN r3071 (trunk)
This commit is contained in:
Christoph Oelckers
parent
f6c1f359e1
commit
e27179afd0
1 changed files with 17 additions and 74 deletions
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@ -97,8 +97,7 @@ static void gdb_info(pid_t pid)
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strcpy(respfile, "gdb-respfile-XXXXXX");
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if((fd = mkstemp(respfile)) >= 0 && (f = fdopen(fd, "w")))
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{
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fprintf(f, "signal SIGCHLD\n"
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"shell echo \"\"\n"
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fprintf(f, "shell echo \"\"\n"
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"shell echo \"* Loaded Libraries\"\n"
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"info sharedlibrary\n"
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"shell echo \"\"\n"
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@ -115,36 +114,8 @@ static void gdb_info(pid_t pid)
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"x/x $eip-3\nx/x $eip\n"
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"shell echo \"\"\n"
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"shell echo \"* Backtrace\"\n"
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"backtrace full\n"
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#if 0 /* This sorta works to print out the core, but is too slow and skips 0's.. */
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"shell echo \"\"\n"
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"shell echo \"* Stack\"\n"
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"set var $_sp = $esp\n"
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"while $_sp <= $ebp - 12\n"
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" printf \"%%08x: \", $_sp\n"
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" set var $_i = $_sp\n"
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" while $_i < $_sp + 16\n"
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" printf \"%%08x \", {int} $_i\n"
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" set $_i += 4\n"
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" end\n"
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" set var $_i = $_sp\n"
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" while $_i < $_sp + 16\n"
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" printf \"%%c\", {int} $_i\n"
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" set ++$_i\n"
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" end\n"
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" set var $_sp += 16\n"
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" printf \"\\n\"\n"
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"end\n"
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"if $_sp <= $ebp\n"
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" printf \"%%08x: \", $esp\n"
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" while $_sp <= $ebp\n"
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" printf \"%%08x \", {int} $_i\n"
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" set $_sp += 4\n"
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" end\n"
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" printf \"\\n\"\n"
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"end\n"
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#endif
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"kill\n"
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"thread apply all backtrace full\n"
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"detach\n"
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"quit\n");
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fclose(f);
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@ -152,8 +123,8 @@ static void gdb_info(pid_t pid)
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snprintf(buf, sizeof(buf), "gdb --quiet --batch --command=%s --pid=%i", respfile, pid);
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printf("Executing: %s\n", buf);
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fflush(stdout);
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system(buf);
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system(buf);
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/* Clean up */
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remove(respfile);
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}
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@ -168,6 +139,7 @@ static void gdb_info(pid_t pid)
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printf("Could not create gdb command file\n");
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}
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fflush(stdout);
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kill(pid, SIGKILL);
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}
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@ -267,8 +239,8 @@ static void crash_catcher(int signum, siginfo_t *siginfo, void *context)
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/* Make sure the effective uid is the real uid */
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if (getuid() != geteuid())
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{
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fprintf(stderr, "%s (signal %i)\ngetuid() does not match geteuid().\n", sigdesc, signum);
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_exit(-1);
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raise(signum);
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return;
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}
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#endif
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@ -325,48 +297,18 @@ static void crash_catcher(int signum, siginfo_t *siginfo, void *context)
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}
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gdb_info(pid);
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#if 0 /* Why won't this work? */
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if(ucontext)
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{
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unsigned char *ptr = ucontext->uc_stack.ss_sp;
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size_t len;
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fprintf(f, "\n* Stack\n");
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for(len = ucontext->uc_stack.ss_size/4;len > 0; len -= 4)
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{
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fprintf(f, "0x%08x:", (int)ptr);
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for(i = 0;i < ((len < 4) ? len : 4);++i)
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{
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fprintf(f, " %02x%02x%02x%02x", ptr[i*4 + 0], ptr[i*4 + 1],
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ptr[i*4 + 2], ptr[i*4 + 3]);
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}
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fputc(' ', f);
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fflush(f);
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for(i = 0;i < ((len < 4) ? len : 4);++i)
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{
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fprintf(f, "%c", *(ptr++));
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fprintf(f, "%c", *(ptr++));
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fprintf(f, "%c", *(ptr++));
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fprintf(f, "%c", *(ptr++));
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}
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fputc('\n', f);
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fflush(f);
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}
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}
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#endif
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if(f != stderr)
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{
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fclose(f);
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#if (defined __unix__)
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if(cc_logfile)
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{
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char buf[256];
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char buf[512];
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snprintf(buf, sizeof(buf),
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"if (which gxmessage > /dev/null 2>&1);"
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"then gxmessage -buttons \"Damn it:0\" -center -title \"Very Fatal Error\" -file %s;"
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"elif (which xmessage > /dev/null 2>&1);"
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"then xmessage -buttons \"Damn it:0\" -center -file %s -geometry 600x400;"
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"if (which gxmessage > /dev/null 2>&1) ; then\n"
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" gxmessage -buttons \"Damn it:0\" -center -title \"Very Fatal Error\" -file %s\n"
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"elif (which xmessage > /dev/null 2>&1) ; then\n"
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" xmessage -buttons \"Damn it:0\" -center -file %s -geometry 600x400\n"
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"fi", cc_logfile, cc_logfile);
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system(buf);
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}
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@ -376,8 +318,8 @@ static void crash_catcher(int signum, siginfo_t *siginfo, void *context)
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_exit(0);
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default:
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/* Wait and let the child attach gdb */
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waitpid(dbg_pid, NULL, 0);
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/* Wait indefinitely; we'll be killed when gdb is done */
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while(1) usleep(1000000);
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}
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}
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@ -389,11 +331,12 @@ int cc_install_handlers(int num_signals, int *signals, const char *logfile, int
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sa.sa_sigaction = crash_catcher;
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#if !defined(__FreeBSD__) && !defined(__APPLE__)
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#ifdef SA_ONESHOT
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sa.sa_flags = SA_ONESHOT | SA_NODEFER | SA_SIGINFO;
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#else
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sa.sa_flags = SA_NODEFER | SA_SIGINFO;
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#endif
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sigemptyset(&sa.sa_mask);
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cc_logfile = logfile;
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cc_user_info = user_info;
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