mirror of
https://github.com/darlinghq/darling-objc4.git
synced 2024-11-23 04:09:46 +00:00
306 lines
7.0 KiB
Plaintext
306 lines
7.0 KiB
Plaintext
/*
|
|
* 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 <_simple.h>
|
|
|
|
// Return true if c is a UTF8 continuation byte
|
|
static bool isUTF8Continuation(char c)
|
|
{
|
|
return (c & 0xc0) == 0x80; // continuation byte is 0b10xxxxxx
|
|
}
|
|
|
|
// Add "message" to any forthcoming crash log.
|
|
mutex_t crashlog_lock;
|
|
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
|
|
|
|
mutex_locker_t lock(crashlog_lock);
|
|
|
|
char *oldmsg = (char *)CRGetCrashLogMessage();
|
|
size_t oldlen;
|
|
const size_t limit = 8000;
|
|
|
|
if (!oldmsg) {
|
|
newmsg = strdup(message);
|
|
} else if ((oldlen = strlen(oldmsg)) > limit) {
|
|
// limit total length by dropping old contents
|
|
char *truncmsg = oldmsg + oldlen - limit;
|
|
// advance past partial UTF-8 bytes
|
|
while (isUTF8Continuation(*truncmsg)) truncmsg++;
|
|
asprintf(&newmsg, "... %s\n%s", truncmsg, 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);
|
|
}
|
|
}
|
|
|
|
// 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 || m == S_IFIFO || m == S_IFCHR) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Print "message" to the console.
|
|
static void _objc_syslog(const char *message)
|
|
{
|
|
_simple_asl_log(ASL_LEVEL_ERR, nil, message);
|
|
|
|
if (also_do_stderr()) {
|
|
write(STDERR_FILENO, message, strlen(message));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* _objc_error is the default *_error handler.
|
|
*/
|
|
#if !__OBJC2__
|
|
// used by ExceptionHandling.framework
|
|
#endif
|
|
__attribute__((noreturn, cold))
|
|
void _objc_error(id self, const char *fmt, va_list ap)
|
|
{
|
|
char *buf;
|
|
vasprintf(&buf, fmt, ap);
|
|
_objc_fatal("%s: %s", object_getClassName(self), buf);
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
static __attribute__((noreturn, cold))
|
|
void _objc_fatalv(uint64_t reason, uint64_t flags, const char *fmt, va_list ap)
|
|
{
|
|
char *buf1;
|
|
vasprintf(&buf1, fmt, ap);
|
|
|
|
char *buf2;
|
|
asprintf(&buf2, "objc[%d]: %s\n", getpid(), buf1);
|
|
_objc_syslog(buf2);
|
|
|
|
if (DebugDontCrash) {
|
|
char *buf3;
|
|
asprintf(&buf3, "objc[%d]: HALTED\n", getpid());
|
|
_objc_syslog(buf3);
|
|
_Exit(1);
|
|
}
|
|
else {
|
|
_objc_crashlog(buf1);
|
|
abort_with_reason(OS_REASON_OBJC, reason, buf1, flags);
|
|
}
|
|
}
|
|
|
|
void _objc_fatal_with_reason(uint64_t reason, uint64_t flags,
|
|
const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
_objc_fatalv(reason, flags, fmt, ap);
|
|
}
|
|
|
|
void _objc_fatal(const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap,fmt);
|
|
_objc_fatalv(OBJC_EXIT_REASON_UNSPECIFIED,
|
|
OS_REASON_FLAG_ONE_TIME_FAILURE,
|
|
fmt, ap);
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
#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();
|
|
}
|