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https://github.com/edeproject/ede.git
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dfd2355c18
Rewriten ede-crasher. Now is able to call ede-bug-report, display png icon, do backtrace in random temporary files and etc.
145 lines
3.2 KiB
C++
145 lines
3.2 KiB
C++
/*
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* $Id$
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*
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* ede-crasher, a crash handler tool
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* Part of Equinox Desktop Environment (EDE).
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* Copyright (c) 2008-2009 EDE Authors.
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*
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* This program is licensed under terms of the
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* GNU General Public License version 2 or newer.
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* See COPYING for details.
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*/
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#include <sys/utsname.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <edelib/Missing.h>
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#include <edelib/File.h>
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#include <edelib/Debug.h>
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#include <edelib/File.h>
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#include <edelib/FileTest.h>
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#include "GdbOutput.h"
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/* assume core is placed in current directory */
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#define CORE_FILE "core"
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EDELIB_NS_USING(String)
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EDELIB_NS_USING(file_path)
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EDELIB_NS_USING(file_test)
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EDELIB_NS_USING(file_remove)
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EDELIB_NS_USING(FILE_TEST_IS_REGULAR)
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static void close_and_invalidate(int &fd) {
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if(fd != -1) {
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::close(fd);
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fd = -1;
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}
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}
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static int write_str(int fd, const char *str) {
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int len = strlen(str);
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return ::write(fd, str, len);
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}
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GdbOutput::~GdbOutput() {
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close_and_invalidate(sfd);
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close_and_invalidate(ofd);
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if(!gdb_script_path.empty())
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file_remove(gdb_script_path.c_str());
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if(!gdb_output_path.empty())
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file_remove(gdb_output_path.c_str());
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file_remove(CORE_FILE);
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}
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bool GdbOutput::fds_open(void) {
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errno = 0;
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char sp[] = "/tmp/.ecrash-script.XXXXXX";
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char op[] = "/tmp/.ecrash-output.XXXXXX";
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sfd = mkstemp(sp);
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if(sfd == -1) {
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E_WARNING(E_STRLOC ": Unable to open script file: (%i), %s\n", errno, strerror(errno));
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return false;
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}
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/* copy it as fast as possible */
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gdb_script_path = sp;
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ofd = mkstemp(op);
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if(ofd == -1) {
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E_WARNING(E_STRLOC ": Unable to open output file: (%i), %s\n", errno, strerror(errno));
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return false;
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}
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/* copy it as fast as possible */
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gdb_output_path = op;
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return true;
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}
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bool GdbOutput::run(void) {
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E_RETURN_VAL_IF_FAIL(fds_opened(), false);
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/* write script */
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::write(sfd, "bt\nquit\n", 8);
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close_and_invalidate(sfd);
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String gdb_path = file_path("gdb");
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if(gdb_path.empty()) {
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/* write straight to the file, so dialog could show it */
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write_str(ofd, "Unable to find gdb. Please install it first");
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/* see it as valid, so dialog could be shown */
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return true;
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}
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if(!file_test(CORE_FILE, FILE_TEST_IS_REGULAR)) {
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write_str(ofd, "Unable to find '"CORE_FILE"'. Backtrace will not be done.");
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/* see it as valid, so dialog could be shown */
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return true;
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}
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pid_t pid = fork();
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if(pid == -1) {
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close_and_invalidate(ofd);
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E_WARNING(E_STRLOC ": Unable to fork the process\n");
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return false;
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} else if(pid == 0) {
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dup2(ofd, 1);
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close_and_invalidate(ofd);
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char* argv[8];
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argv[0] = (char*)gdb_path.c_str();
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argv[1] = "--quiet";
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argv[2] = "--batch";
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argv[3] = "-x";
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argv[4] = (char*)gdb_script_path.c_str();
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argv[5] = (char*)program_path;
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argv[6] = (char*)CORE_FILE;
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argv[7] = 0;
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execvp(argv[0], argv);
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return false;
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} else {
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int status;
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if(waitpid(pid, &status, 0) != pid) {
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E_WARNING(E_STRLOC ": Failed to execute waitpid() properly\n");
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return false;
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}
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}
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return true;
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}
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