// Berkeley Open Infrastructure for Network Computing // http://boinc.berkeley.edu // Copyright (C) 2005 University of California // // This is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; // either version 2.1 of the License, or (at your option) any later version. // // This software is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. // See the GNU Lesser General Public License for more details. // // To view the GNU Lesser General Public License visit // http://www.gnu.org/copyleft/lesser.html // or write to the Free Software Foundation, Inc., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA /* * QMachOImageList.h * */ /* This is part of a backtrace generator for boinc project applications. * * Adapted from Apple Developer Technical Support Sample Code QCrashReport * * This code handles Mac OS X 10.3.x through 10.4.9. It may require some * adjustment for future OS versions; see the discussion of _sigtramp and * PowerPC Signal Stack Frames in file QBacktrace.c. * * For useful tips on using backtrace information, see Apple Tech Note 2123: * http://developer.apple.com/technotes/tn2004/tn2123.html#SECNOSYMBOLS * * To convert addresses to correct symbols, use the atos command-line tool: * atos -o path/to/executable/with/symbols address * Note: if address 1a23 is hex, use 0x1a23. * * To demangle mangled C++ symbols, use the c++filt command-line tool. * You may need to prefix C++ symbols with an additonal underscore before * passing them to c++filt (so they begin with two underscore characters). * * A very useful shell script to add symbols to a crash dump can be found at: * http://developer.apple.com/tools/xcode/symbolizingcrashdumps.html * Pipe the output of the shell script through c++filt to demangle C++ symbols. */ /* File: QMachOImageList.h Contains: Code to get all Mach-O images within a task. 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Change History (most recent first): $Log: QMachOImageList.h,v $ Revision 1.1 2007/03/02 12:20:25 First checked in. */ #ifndef _QMACHOIMAGELIST_H #define _QMACHOIMAGELIST_H ///////////////////////////////////////////////////////////////// #include "QMachOImage.h" ///////////////////////////////////////////////////////////////// #ifdef __cplusplus extern "C" { #endif /*! @header QMachOImageList.h @abstract Gets all Mach-O images within a process. @discussion This module provides routines to get all of the Mach-O images from a process. The intricacies of the implementation are covered by the comments in the source. The interface is, however, quite clean. There are two functions, one to get a list of all of the images in the current process (QMOImageListFromSelf), and another to get a list of the images in an arbitrary process. This module assumes that the state of the process you're investigating is stable. That is, when you ask the module to create the process's image list, you need to guarantee that the dyld state of the process does not change while this module is looking at it. The best way to prevent this from happening is to suspend the process while you're accessing it. The Mach routine task_suspend is very useful in this situation. */ /*! @function QMOImageListFromSelf @abstract Returns a list of Mach-O images in the current process. @discussion Just like QMOImageListForTask except that it returns the image list for the current task. The implementation of this routine is much less scary than that of QMOImageListForTask. @param imageArray May be NULL only if imageArrayCount is 0. If not NULL, it must point to an array of imageArrayCount elements. On success, the array holds references to up to imageArrayCount image objects. On error, each element of the array will be NULL. @param imageArrayCount The size of the array pointed to by imageArray. May be zero. @param imageArrayCountPtr Must not be NULL. On entry, the value of *imageArrayCountPtr is ignored. On success, *imageArrayCountPtr is the number of images in the target process. On error, *imageArrayCountPtr is undefined. IMPORTANT: The value returned in *imageArrayCountPtr may be larger than imageArrayCount. That means that the imageArray was not big enough to hold all of the images in the target process. You can use the value in *imageArrayCountPtr to grow the array and thus get all of the images. @result An errno-style error code per QTMErrnoFromMachError. */ extern int QMOImageListFromSelf( QMOImageRef * imageArray, size_t imageArrayCount, size_t * imageCountPtr ); /*! @function QMOImageListFromTask @abstract Returns a list of Mach-O images for an arbitrary process. @discussion Returns a list of Mach-O images for the specified process. @param task Must be the name of a valid send right for the task control port of the task whose images you want; mach_task_self is just fine. If you do pass in mach_task_self, this routine acts like you'd called QMOImageListFromSelf. This automatically enables some nice optimisations. @param cputype The CPU type of the dynamic linker from which you want to get the image list. Typically you would pass CPU_TYPE_ANY to use the first dynamic linker that's discovered. See QMOImageCreateFromTaskDyld for a detailed discussion of this value. @param imageArray May be NULL only if imageArrayCount is 0. If not NULL, it must point to an array of imageArrayCount elements. On success, the array holds references to up to imageArrayCount image objects. On error, each element of the array will be NULL. @param imageArrayCount The size of the array pointed to by imageArray. May be zero. @param imageArrayCountPtr Must not be NULL. On entry, the value of *imageArrayCountPtr is ignored. On success, *imageArrayCountPtr is the number of images in the target process. On error, *imageArrayCountPtr is undefined. IMPORTANT: The value returned in *imageArrayCountPtr may be larger than imageArrayCount. That means that the imageArray was not big enough to hold all of the images in the target process. You can use the value in *imageArrayCountPtr to grow the array and thus get all of the images. @result An errno-style error code per QTMErrnoFromMachError. */ extern int QMOImageListFromTask( task_t task, cpu_type_t cputype, QMOImageRef * imageArray, size_t imageArrayCount, size_t * imageCountPtr ); /*! @function QMOImageListDestroy @abstract Destroys an array of image objects. @discussion Destroys an array of image objects. Calls QMOImageDestroy for each element of the array. Because QMOImageDestroy does nothing if its parameter is NULL, it's safe for elements of the array to be NULL. @param imageArray May be NULL only if imageArrayCount is 0. If not NULL, it must point to an array of imageArrayCount elements. @param imageArrayCount The size of the array pointed to by imageArray. May be zero. */ extern void QMOImageListDestroy(QMOImageRef *imageArray, size_t imageArrayCount); #ifdef __cplusplus } #endif #endif