зеркало из https://github.com/mozilla/gecko-dev.git
129 строки
4.9 KiB
C
129 строки
4.9 KiB
C
/* vim: set shiftwidth=4 tabstop=8 autoindent cindent expandtab: */
|
|
/* ***** 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 NS_WalkTheStack.
|
|
*
|
|
* The Initial Developer of the Original Code is the Mozilla Foundation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2007
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* L. David Baron <dbaron@dbaron.org>, Mozilla Corporation (original author)
|
|
*
|
|
* 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 ***** */
|
|
|
|
/* API for getting a stack trace of the C/C++ stack on the current thread */
|
|
|
|
#ifndef nsStackWalk_h_
|
|
#define nsStackWalk_h_
|
|
|
|
/* WARNING: This file is intended to be included from C or C++ files. */
|
|
|
|
#include "nscore.h"
|
|
|
|
PR_BEGIN_EXTERN_C
|
|
|
|
typedef void
|
|
(* PR_CALLBACK NS_WalkStackCallback)(void *aPC, void *aClosure);
|
|
|
|
/**
|
|
* Call aCallback for the C/C++ stack frames on the current thread, from
|
|
* the caller of NS_StackWalk to main (or above).
|
|
*
|
|
* @param aCallback Callback function, called once per frame.
|
|
* @param aSkipFrames Number of initial frames to skip. 0 means that
|
|
* the first callback will be for the caller of
|
|
* NS_StackWalk.
|
|
* @param aClosure Caller-supplied data passed through to aCallback.
|
|
*
|
|
* Returns NS_ERROR_NOT_IMPLEMENTED on platforms where it is
|
|
* unimplemented.
|
|
*
|
|
* May skip some stack frames due to compiler optimizations or code
|
|
* generation.
|
|
*/
|
|
XPCOM_API(nsresult)
|
|
NS_StackWalk(NS_WalkStackCallback aCallback, PRUint32 aSkipFrames,
|
|
void *aClosure);
|
|
|
|
typedef struct {
|
|
/*
|
|
* The name of the shared library or executable containing an
|
|
* address and the address's offset within that library, or empty
|
|
* string and zero if unknown.
|
|
*/
|
|
char library[256];
|
|
unsigned long loffset;
|
|
/*
|
|
* The name of the file name and line number of the code
|
|
* corresponding to the address, or empty string and zero if
|
|
* unknown.
|
|
*/
|
|
char filename[256];
|
|
unsigned long lineno;
|
|
/*
|
|
* The name of the function containing an address and the address's
|
|
* offset within that function, or empty string and zero if unknown.
|
|
*/
|
|
char function[256];
|
|
unsigned long foffset;
|
|
} nsCodeAddressDetails;
|
|
|
|
/**
|
|
* For a given pointer to code, fill in the pieces of information used
|
|
* when printing a stack trace.
|
|
*
|
|
* @param aPC The code address.
|
|
* @param aDetails A structure to be filled in with the result.
|
|
*/
|
|
XPCOM_API(nsresult)
|
|
NS_DescribeCodeAddress(void *aPC, nsCodeAddressDetails *aDetails);
|
|
|
|
/**
|
|
* Format the information about a code address in a format suitable for
|
|
* stack traces on the current platform. When available, this string
|
|
* should contain the function name, source file, and line number. When
|
|
* these are not available, library and offset should be reported, if
|
|
* possible.
|
|
*
|
|
* @param aPC The code address.
|
|
* @param aDetails The value filled in by NS_DescribeCodeAddress(aPC).
|
|
* @param aBuffer A string to be filled in with the description.
|
|
* The string will always be null-terminated.
|
|
* @param aBufferSize The size, in bytes, of aBuffer, including
|
|
* room for the terminating null. If the information
|
|
* to be printed would be larger than aBuffer, it
|
|
* will be truncated so that aBuffer[aBufferSize-1]
|
|
* is the terminating null.
|
|
*/
|
|
XPCOM_API(nsresult)
|
|
NS_FormatCodeAddressDetails(void *aPC, const nsCodeAddressDetails *aDetails,
|
|
char *aBuffer, PRUint32 aBufferSize);
|
|
|
|
PR_END_EXTERN_C
|
|
|
|
#endif /* !defined(nsStackWalk_h_) */
|