/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*- * * Copyright (c) 2004-2009 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@ */ #include <stddef.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <mach-o/loader.h> #include <vector> #include "mach-o/dyld_gdb.h" #include "mach-o/dyld_images.h" #include "ImageLoader.h" static std::vector<dyld_image_info> sImageInfos; void addImagesToAllImages(uint32_t infoCount, const dyld_image_info info[]) { // make initial size large enought that we probably won't need to re-alloc it if ( sImageInfos.size() == 0 ) sImageInfos.reserve(INITIAL_IMAGE_COUNT); // set infoArray to NULL to denote it is in-use dyld_all_image_infos.infoArray = NULL; // append all new images for (uint32_t i=0; i < infoCount; ++i) sImageInfos.push_back(info[i]); dyld_all_image_infos.infoArrayCount = sImageInfos.size(); // set infoArray back to base address of vector dyld_all_image_infos.infoArray = &sImageInfos[0]; // tell gdb that about the new images dyld_all_image_infos.notification(dyld_image_adding, infoCount, info); } void removeImageFromAllImages(const struct mach_header* loadAddress) { dyld_image_info goingAway; // set infoArray to NULL to denote it is in-use dyld_all_image_infos.infoArray = NULL; // remove image from infoArray for (std::vector<dyld_image_info>::iterator it=sImageInfos.begin(); it != sImageInfos.end(); it++) { if ( it->imageLoadAddress == loadAddress ) { goingAway = *it; sImageInfos.erase(it); break; } } dyld_all_image_infos.infoArrayCount = sImageInfos.size(); // set infoArray back to base address of vector dyld_all_image_infos.infoArray = &sImageInfos[0]; // tell gdb that about the new images dyld_all_image_infos.notification(dyld_image_removing, 1, &goingAway); } static void gdb_image_notifier(enum dyld_image_mode mode, uint32_t infoCount, const dyld_image_info info[]) { // do nothing // gdb sets a break point here to catch notifications //dyld::log("dyld: gdb_image_notifier(%s, %d, ...)\n", mode ? "dyld_image_removing" : "dyld_image_adding", infoCount); //for (uint32_t i=0; i < infoCount; ++i) // dyld::log("dyld: %d loading at %p %s\n", i, info[i].imageLoadAddress, info[i].imageFilePath); //for (uint32_t i=0; i < dyld_all_image_infos.infoArrayCount; ++i) // dyld::log("dyld: %d loading at %p %s\n", i, dyld_all_image_infos.infoArray[i].imageLoadAddress, dyld_all_image_infos.infoArray[i].imageFilePath); } void setAlImageInfosHalt(const char* message, uintptr_t flags) { dyld_all_image_infos.errorMessage = message; dyld_all_image_infos.terminationFlags = flags; } extern void* __dso_handle; #define STR(s) # s #define XSTR(s) STR(s) struct dyld_all_image_infos dyld_all_image_infos __attribute__ ((section ("__DATA,__all_image_info"))) = { 7, 0, NULL, &gdb_image_notifier, false, false, (const mach_header*)&__dso_handle, NULL, XSTR(DYLD_VERSION) , NULL, 0, 0 }; struct dyld_shared_cache_ranges dyld_shared_cache_ranges;