UNLOZE/sourcemod
9
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Fixed crash in MemoryUtils::ResolveSymbol() on OS X Lion (10.7) (bug 4951, r=dvander).

Browse Source
This commit is contained in:
Scott Ehlert
2011-06-15 16:02:05 -05:00
parent e8fbe0f36c
commit 4c878c4963
4 changed files with 45 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
core/logic/MemoryUtils.cpp
+35 -7
View File
@@ -2,7 +2,7 @@
* vim: set ts=4 sw=4 tw=99 noet :
* =============================================================================
* SourceMod
* Copyright (C) 2004-2010 AlliedModders LLC. All rights reserved.
* Copyright (C) 2004-2011 AlliedModders LLC. All rights reserved.
* =============================================================================
*
* This program is free software; you can redistribute it and/or modify it under
@@ -36,11 +36,26 @@
#define PAGE_SIZE 4096
#define PAGE_ALIGN_UP(x) ((x + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
#endif
#ifdef PLATFORM_APPLE
#include <AvailabilityMacros.h>
#include <mach/task.h>
#include <mach-o/dyld_images.h>
#include <mach-o/loader.h>
#include <mach-o/nlist.h>
#endif
/* Define things from 10.6 SDK for older SDKs */
#ifndef MAC_OS_X_VERSION_10_6
struct task_dyld_info
{
mach_vm_address_t all_image_info_addr;
mach_vm_size_t all_image_info_size;
};
typedef struct task_dyld_info task_dyld_info_data_t;
#define TASK_DYLD_INFO 17
#define TASK_DYLD_INFO_COUNT (sizeof(task_dyld_info_data_t) / sizeof(natural_t))
#endif // MAC_OS_X_VERSION_10_6
#endif // PLATFORM_APPLE
MemoryUtils g_MemUtils;
@@ -48,12 +63,25 @@ MemoryUtils::MemoryUtils()
{
#ifdef PLATFORM_APPLE
Gestalt(gestaltSystemVersionMajor, &m_OSXMajor);
Gestalt(gestaltSystemVersionMinor, &m_OSXMinor);
/* Get pointer to struct that describes all loaded mach-o images in process */
struct nlist list[2];
memset(list, 0, sizeof(list));
list[0].n_un.n_name = (char *)"_dyld_all_image_infos";
nlist("/usr/lib/dyld", list);
m_ImageList = (struct dyld_all_image_infos *)list[0].n_value;
if (m_OSXMajor == 10 && m_OSXMinor >= 6 || m_OSXMajor > 10)
{
task_dyld_info_data_t dyld_info;
mach_msg_type_number_t count = TASK_DYLD_INFO_COUNT;
task_info(mach_task_self(), TASK_DYLD_INFO, (task_info_t)&dyld_info, &count);
m_ImageList = (struct dyld_all_image_infos *)dyld_info.all_image_info_addr;
}
else
{
struct nlist list[2];
memset(list, 0, sizeof(list));
list[0].n_un.n_name = (char *)"_dyld_all_image_infos";
nlist("/usr/lib/dyld", list);
m_ImageList = (struct dyld_all_image_infos *)list[0].n_value;
}
#endif
}