зеркало из https://github.com/mozilla/pjs.git
364 строки
9.6 KiB
C
364 строки
9.6 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
/*
|
|
* JavaScript Debugging support - Hook support
|
|
*/
|
|
|
|
#include "jsd.h"
|
|
|
|
JSTrapStatus
|
|
jsd_InterruptHandler(JSContext *cx, JSScript *script, jsbytecode *pc, jsval *rval,
|
|
void *closure)
|
|
{
|
|
JSDScript* jsdscript;
|
|
JSDContext* jsdc = (JSDContext*) closure;
|
|
JSD_ExecutionHookProc hook;
|
|
void* hookData;
|
|
|
|
if( ! jsdc || ! jsdc->inited )
|
|
return JSTRAP_CONTINUE;
|
|
|
|
if( JSD_IS_DANGEROUS_THREAD(jsdc) )
|
|
return JSTRAP_CONTINUE;
|
|
|
|
/* local in case jsdc->interruptHook gets cleared on another thread */
|
|
JSD_LOCK();
|
|
hook = jsdc->interruptHook;
|
|
hookData = jsdc->interruptHookData;
|
|
JSD_UNLOCK();
|
|
|
|
if (!hook)
|
|
return JSTRAP_CONTINUE;
|
|
|
|
JSD_LOCK_SCRIPTS(jsdc);
|
|
jsdscript = jsd_FindOrCreateJSDScript(jsdc, cx, script, NULL);
|
|
JSD_UNLOCK_SCRIPTS(jsdc);
|
|
if( ! jsdscript )
|
|
return JSTRAP_CONTINUE;
|
|
|
|
#ifdef LIVEWIRE
|
|
if( ! jsdlw_UserCodeAtPC(jsdc, jsdscript, (uintptr_t)pc) )
|
|
return JSTRAP_CONTINUE;
|
|
#endif
|
|
|
|
return jsd_CallExecutionHook(jsdc, cx, JSD_HOOK_INTERRUPTED,
|
|
hook, hookData, rval);
|
|
}
|
|
|
|
JSTrapStatus
|
|
jsd_DebuggerHandler(JSContext *cx, JSScript *script, jsbytecode *pc,
|
|
jsval *rval, void *closure)
|
|
{
|
|
JSDScript* jsdscript;
|
|
JSDContext* jsdc = (JSDContext*) closure;
|
|
JSD_ExecutionHookProc hook;
|
|
void* hookData;
|
|
|
|
if( ! jsdc || ! jsdc->inited )
|
|
return JSTRAP_CONTINUE;
|
|
|
|
if( JSD_IS_DANGEROUS_THREAD(jsdc) )
|
|
return JSTRAP_CONTINUE;
|
|
|
|
/* local in case jsdc->debuggerHook gets cleared on another thread */
|
|
JSD_LOCK();
|
|
hook = jsdc->debuggerHook;
|
|
hookData = jsdc->debuggerHookData;
|
|
JSD_UNLOCK();
|
|
if(!hook)
|
|
return JSTRAP_CONTINUE;
|
|
|
|
JSD_LOCK_SCRIPTS(jsdc);
|
|
jsdscript = jsd_FindOrCreateJSDScript(jsdc, cx, script, NULL);
|
|
JSD_UNLOCK_SCRIPTS(jsdc);
|
|
if( ! jsdscript )
|
|
return JSTRAP_CONTINUE;
|
|
|
|
return jsd_CallExecutionHook(jsdc, cx, JSD_HOOK_DEBUGGER_KEYWORD,
|
|
hook, hookData, rval);
|
|
}
|
|
|
|
|
|
JSTrapStatus
|
|
jsd_ThrowHandler(JSContext *cx, JSScript *script, jsbytecode *pc,
|
|
jsval *rval, void *closure)
|
|
{
|
|
JSDScript* jsdscript;
|
|
JSDContext* jsdc = (JSDContext*) closure;
|
|
JSD_ExecutionHookProc hook;
|
|
void* hookData;
|
|
|
|
if( ! jsdc || ! jsdc->inited )
|
|
return JSTRAP_CONTINUE;
|
|
|
|
if( JSD_IS_DANGEROUS_THREAD(jsdc) )
|
|
return JSTRAP_CONTINUE;
|
|
|
|
/* local in case jsdc->throwHook gets cleared on another thread */
|
|
JSD_LOCK();
|
|
hook = jsdc->throwHook;
|
|
hookData = jsdc->throwHookData;
|
|
JSD_UNLOCK();
|
|
if (!hook)
|
|
return JSTRAP_CONTINUE;
|
|
|
|
JSD_LOCK_SCRIPTS(jsdc);
|
|
jsdscript = jsd_FindOrCreateJSDScript(jsdc, cx, script, NULL);
|
|
JSD_UNLOCK_SCRIPTS(jsdc);
|
|
if( ! jsdscript )
|
|
return JSTRAP_CONTINUE;
|
|
|
|
JS_GetPendingException(cx, rval);
|
|
|
|
return jsd_CallExecutionHook(jsdc, cx, JSD_HOOK_THROW,
|
|
hook, hookData, rval);
|
|
}
|
|
|
|
JSTrapStatus
|
|
jsd_CallExecutionHook(JSDContext* jsdc,
|
|
JSContext *cx,
|
|
unsigned type,
|
|
JSD_ExecutionHookProc hook,
|
|
void* hookData,
|
|
jsval* rval)
|
|
{
|
|
unsigned hookanswer = JSD_HOOK_THROW == type ?
|
|
JSD_HOOK_RETURN_CONTINUE_THROW :
|
|
JSD_HOOK_RETURN_CONTINUE;
|
|
JSDThreadState* jsdthreadstate;
|
|
|
|
if(hook && NULL != (jsdthreadstate = jsd_NewThreadState(jsdc,cx)))
|
|
{
|
|
if ((type != JSD_HOOK_THROW && type != JSD_HOOK_INTERRUPTED) ||
|
|
jsdc->flags & JSD_MASK_TOP_FRAME_ONLY ||
|
|
!(jsdthreadstate->flags & TS_HAS_DISABLED_FRAME))
|
|
{
|
|
/*
|
|
* if it's not a throw and it's not an interrupt,
|
|
* or we're only masking the top frame,
|
|
* or there are no disabled frames in this stack,
|
|
* then call out.
|
|
*/
|
|
hookanswer = hook(jsdc, jsdthreadstate, type, hookData, rval);
|
|
jsd_DestroyThreadState(jsdc, jsdthreadstate);
|
|
}
|
|
}
|
|
|
|
switch(hookanswer)
|
|
{
|
|
case JSD_HOOK_RETURN_ABORT:
|
|
case JSD_HOOK_RETURN_HOOK_ERROR:
|
|
return JSTRAP_ERROR;
|
|
case JSD_HOOK_RETURN_RET_WITH_VAL:
|
|
return JSTRAP_RETURN;
|
|
case JSD_HOOK_RETURN_THROW_WITH_VAL:
|
|
return JSTRAP_THROW;
|
|
case JSD_HOOK_RETURN_CONTINUE:
|
|
break;
|
|
case JSD_HOOK_RETURN_CONTINUE_THROW:
|
|
/* only makes sense for jsd_ThrowHandler (which init'd rval) */
|
|
JS_ASSERT(JSD_HOOK_THROW == type);
|
|
return JSTRAP_THROW;
|
|
default:
|
|
JS_ASSERT(0);
|
|
break;
|
|
}
|
|
return JSTRAP_CONTINUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_CallCallHook (JSDContext* jsdc,
|
|
JSContext *cx,
|
|
unsigned type,
|
|
JSD_CallHookProc hook,
|
|
void* hookData)
|
|
{
|
|
JSBool hookanswer;
|
|
JSDThreadState* jsdthreadstate;
|
|
|
|
hookanswer = JS_FALSE;
|
|
if(hook && NULL != (jsdthreadstate = jsd_NewThreadState(jsdc, cx)))
|
|
{
|
|
hookanswer = hook(jsdc, jsdthreadstate, type, hookData);
|
|
jsd_DestroyThreadState(jsdc, jsdthreadstate);
|
|
}
|
|
|
|
return hookanswer;
|
|
}
|
|
|
|
JSBool
|
|
jsd_SetInterruptHook(JSDContext* jsdc,
|
|
JSD_ExecutionHookProc hook,
|
|
void* callerdata)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->interruptHookData = callerdata;
|
|
jsdc->interruptHook = hook;
|
|
JS_SetInterrupt(jsdc->jsrt, jsd_InterruptHandler, (void*) jsdc);
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_ClearInterruptHook(JSDContext* jsdc)
|
|
{
|
|
JSD_LOCK();
|
|
JS_ClearInterrupt(jsdc->jsrt, NULL, NULL );
|
|
jsdc->interruptHook = NULL;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_SetDebugBreakHook(JSDContext* jsdc,
|
|
JSD_ExecutionHookProc hook,
|
|
void* callerdata)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->debugBreakHookData = callerdata;
|
|
jsdc->debugBreakHook = hook;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_ClearDebugBreakHook(JSDContext* jsdc)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->debugBreakHook = NULL;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_SetDebuggerHook(JSDContext* jsdc,
|
|
JSD_ExecutionHookProc hook,
|
|
void* callerdata)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->debuggerHookData = callerdata;
|
|
jsdc->debuggerHook = hook;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_ClearDebuggerHook(JSDContext* jsdc)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->debuggerHook = NULL;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_SetThrowHook(JSDContext* jsdc,
|
|
JSD_ExecutionHookProc hook,
|
|
void* callerdata)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->throwHookData = callerdata;
|
|
jsdc->throwHook = hook;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_ClearThrowHook(JSDContext* jsdc)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->throwHook = NULL;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_SetFunctionHook(JSDContext* jsdc,
|
|
JSD_CallHookProc hook,
|
|
void* callerdata)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->functionHookData = callerdata;
|
|
jsdc->functionHook = hook;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_ClearFunctionHook(JSDContext* jsdc)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->functionHook = NULL;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_SetTopLevelHook(JSDContext* jsdc,
|
|
JSD_CallHookProc hook,
|
|
void* callerdata)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->toplevelHookData = callerdata;
|
|
jsdc->toplevelHook = hook;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
JSBool
|
|
jsd_ClearTopLevelHook(JSDContext* jsdc)
|
|
{
|
|
JSD_LOCK();
|
|
jsdc->toplevelHook = NULL;
|
|
JSD_UNLOCK();
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|