--- /dev/null
+/*
+ * Copyright (c) 1999-2003, 2005-2007 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * objc-errors.m
+ * Copyright 1988-2001, NeXT Software, Inc., Apple Computer, Inc.
+ */
+
+#include "objc-private.h"
+
+#if TARGET_OS_WIN32
+
+#include <conio.h>
+
+void _objc_inform_on_crash(const char *fmt, ...)
+{
+}
+
+void _objc_inform(const char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ _vcprintf(fmt, args);
+ va_end(args);
+ _cprintf("\n");
+}
+
+void _objc_fatal(const char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ _vcprintf(fmt, args);
+ va_end(args);
+ _cprintf("\n");
+
+ abort();
+}
+
+void __objc_error(id rcv, const char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ _vcprintf(fmt, args);
+ va_end(args);
+
+ abort();
+}
+
+void _objc_error(id rcv, const char *fmt, va_list args)
+{
+ _vcprintf(fmt, args);
+
+ abort();
+}
+
+#else
+
+#include <vproc_priv.h>
+
+OBJC_EXPORT void (*_error)(id, const char *, va_list);
+
+static void _objc_trap(void) __attribute__((noreturn));
+
+// Add "message" to any forthcoming crash log.
+static void _objc_crashlog(const char *message)
+{
+ char *newmsg;
+
+#if 0
+ {
+ // for debugging at BOOT time.
+ extern char **_NSGetProgname(void);
+ FILE *crashlog = fopen("/_objc_crash.log", "a");
+ setbuf(crashlog, NULL);
+ fprintf(crashlog, "[%s] %s\n", *_NSGetProgname(), message);
+ fclose(crashlog);
+ sync();
+ }
+#endif
+
+ static mutex_t crashlog_lock = MUTEX_INITIALIZER;
+ mutex_lock(&crashlog_lock);
+
+ char *oldmsg = (char *)CRGetCrashLogMessage();
+
+ if (!oldmsg) {
+ newmsg = strdup(message);
+ } else {
+ asprintf(&newmsg, "%s\n%s", oldmsg, message);
+ }
+
+ if (newmsg) {
+ // Strip trailing newline
+ char *c = &newmsg[strlen(newmsg)-1];
+ if (*c == '\n') *c = '\0';
+
+ if (oldmsg) free(oldmsg);
+ CRSetCrashLogMessage(newmsg);
+ }
+
+ mutex_unlock(&crashlog_lock);
+}
+
+// Returns true if logs should be sent to stderr as well as syslog.
+// Copied from CFUtilities.c
+static bool also_do_stderr(void)
+{
+ struct stat st;
+ int ret = fstat(STDERR_FILENO, &st);
+ if (ret < 0) return false;
+ mode_t m = st.st_mode & S_IFMT;
+ if (m == S_IFREG || m == S_IFSOCK) return true;
+ if (!(m == S_IFIFO || m == S_IFCHR)) return false;
+
+ // if it could be a pipe back to launchd, fail
+ int64_t val = 0;
+ vproc_swap_integer(NULL, VPROC_GSK_IS_MANAGED, NULL, &val);
+ if (val) return false;
+
+ return true;
+}
+
+// Print "message" to the console.
+static void _objc_syslog(const char *message)
+{
+ syslog(LOG_ERR, "%s", message);
+
+ if (also_do_stderr()) {
+ write(STDERR_FILENO, message, strlen(message));
+ }
+}
+
+/*
+ * _objc_error is the default *_error handler.
+ */
+#if __OBJC2__
+__attribute__((noreturn))
+#else
+// used by ExceptionHandling.framework
+#endif
+void _objc_error(id self, const char *fmt, va_list ap)
+{
+ char *buf1;
+ char *buf2;
+
+ vasprintf(&buf1, fmt, ap);
+ asprintf(&buf2, "objc[%d]: %s: %s\n",
+ getpid(), object_getClassName(self), buf1);
+ _objc_syslog(buf2);
+ _objc_crashlog(buf2);
+
+ _objc_trap();
+}
+
+/*
+ * this routine handles errors that involve an object (or class).
+ */
+void __objc_error(id rcv, const char *fmt, ...)
+{
+ va_list vp;
+
+ va_start(vp,fmt);
+#if !__OBJC2__
+ (*_error)(rcv, fmt, vp);
+#endif
+ _objc_error (rcv, fmt, vp); /* In case (*_error)() returns. */
+ va_end(vp);
+}
+
+/*
+ * this routine handles severe runtime errors...like not being able
+ * to read the mach headers, allocate space, etc...very uncommon.
+ */
+void _objc_fatal(const char *fmt, ...)
+{
+ va_list ap;
+ char *buf1;
+ char *buf2;
+
+ va_start(ap,fmt);
+ vasprintf(&buf1, fmt, ap);
+ va_end (ap);
+
+ asprintf(&buf2, "objc[%d]: %s\n", getpid(), buf1);
+ _objc_syslog(buf2);
+ _objc_crashlog(buf2);
+
+ _objc_trap();
+}
+
+/*
+ * this routine handles soft runtime errors...like not being able
+ * add a category to a class (because it wasn't linked in).
+ */
+void _objc_inform(const char *fmt, ...)
+{
+ va_list ap;
+ char *buf1;
+ char *buf2;
+
+ va_start (ap,fmt);
+ vasprintf(&buf1, fmt, ap);
+ va_end (ap);
+
+ asprintf(&buf2, "objc[%d]: %s\n", getpid(), buf1);
+ _objc_syslog(buf2);
+
+ free(buf2);
+ free(buf1);
+}
+
+
+/*
+ * Like _objc_inform(), but prints the message only in any
+ * forthcoming crash log, not to the console.
+ */
+void _objc_inform_on_crash(const char *fmt, ...)
+{
+ va_list ap;
+ char *buf1;
+ char *buf2;
+
+ va_start (ap,fmt);
+ vasprintf(&buf1, fmt, ap);
+ va_end (ap);
+
+ asprintf(&buf2, "objc[%d]: %s\n", getpid(), buf1);
+ _objc_crashlog(buf2);
+
+ free(buf2);
+ free(buf1);
+}
+
+
+/*
+ * Like calling both _objc_inform and _objc_inform_on_crash.
+ */
+void _objc_inform_now_and_on_crash(const char *fmt, ...)
+{
+ va_list ap;
+ char *buf1;
+ char *buf2;
+
+ va_start (ap,fmt);
+ vasprintf(&buf1, fmt, ap);
+ va_end (ap);
+
+ asprintf(&buf2, "objc[%d]: %s\n", getpid(), buf1);
+ _objc_crashlog(buf2);
+ _objc_syslog(buf2);
+
+ free(buf2);
+ free(buf1);
+}
+
+
+/* Kill the process in a way that generates a crash log.
+ * This is better than calling exit(). */
+static void _objc_trap(void)
+{
+ __builtin_trap();
+}
+
+/* Try to keep _objc_warn_deprecated out of crash logs
+ * caused by _objc_trap(). rdar://4546883 */
+__attribute__((used))
+static void _objc_trap2(void)
+{
+ __builtin_trap();
+}
+
+#endif
+
+
+BREAKPOINT_FUNCTION(
+ void _objc_warn_deprecated(void)
+);
+
+void _objc_inform_deprecated(const char *oldf, const char *newf)
+{
+ if (PrintDeprecation) {
+ if (newf) {
+ _objc_inform("The function %s is obsolete. Use %s instead. Set a breakpoint on _objc_warn_deprecated to find the culprit.", oldf, newf);
+ } else {
+ _objc_inform("The function %s is obsolete. Do not use it. Set a breakpoint on _objc_warn_deprecated to find the culprit.", oldf);
+ }
+ }
+ _objc_warn_deprecated();
+}
projects / apple / objc4.git / blobdiff