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--- dyld/dyld-360.22/src/dyldAPIsInLibSystem.cpp
+++ dyld/dyld-95.3/src/dyldAPIsInLibSystem.cpp
@@ -1,6 +1,6 @@
/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
*
- * Copyright (c) 2004-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 2004-2007 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
@@ -24,60 +24,15 @@
#include <stddef.h>
#include <string.h>
-#include <malloc/malloc.h>
-#include <sys/mman.h>
-
#include <crt_externs.h>
-#include <Availability.h>
-#include <vproc_priv.h>
#include "mach-o/dyld.h"
#include "mach-o/dyld_priv.h"
-#include "ImageLoader.h"
#include "dyldLock.h"
-#include "start_glue.h"
-
-extern "C" int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
-extern "C" void __cxa_finalize(const void *dso);
-extern "C" void __cxa_finalize_ranges(const struct __cxa_range_t ranges[], int count);
-
-
-#ifndef LC_VERSION_MIN_MACOSX
- #define LC_VERSION_MIN_MACOSX 0x24
- struct version_min_command {
- uint32_t cmd; /* LC_VERSION_MIN_MACOSX or
- LC_VERSION_MIN_IPHONEOS */
- uint32_t cmdsize; /* sizeof(struct min_version_command) */
- uint32_t version; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
- uint32_t sdk; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
- };
-#endif
-
-#ifndef LC_VERSION_MIN_IPHONEOS
- #define LC_VERSION_MIN_IPHONEOS 0x25
-#endif
-
-#ifndef LC_VERSION_MIN_TVOS
- #define LC_VERSION_MIN_TVOS 0x2F
-#endif
-
-#ifndef LC_VERSION_MIN_WATCHOS
- #define LC_VERSION_MIN_WATCHOS 0x30
-#endif
-
-
-#ifndef LC_LOAD_UPWARD_DYLIB
- #define LC_LOAD_UPWARD_DYLIB (0x23|LC_REQ_DYLD) /* load of dylib whose initializers run later */
-#endif
-
-
-// deprecated APIs are still availble on Mac OS X, but not on iPhone OS
-#if __IPHONE_OS_VERSION_MIN_REQUIRED
- #define DEPRECATED_APIS_SUPPORTED 0
-#else
- #define DEPRECATED_APIS_SUPPORTED 1
-#endif
+
+extern "C" int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
+
/*
* names_match() takes an install_name from an LC_LOAD_DYLIB command and a
@@ -88,10 +43,10 @@
static
bool
names_match(
-const char *install_name,
+char *install_name,
const char* libraryName)
{
- const char *basename;
+ char *basename;
unsigned long n;
/*
@@ -112,7 +67,7 @@
* of the -framework cases.
*/
if(strcmp(basename, libraryName) == 0)
- return true;
+ return(TRUE);
/*
* Now check the base name for "lib" if so proceed to check for the
@@ -122,32 +77,29 @@
n = strlen(libraryName);
if(strncmp(basename+3, libraryName, n) == 0){
if(strncmp(basename+3+n, ".dylib", 6) == 0)
- return true;
+ return(TRUE);
if(basename[3+n] == '.' &&
basename[3+n+1] != '\0' &&
strncmp(basename+3+n+2, ".dylib", 6) == 0)
- return true;
+ return(TRUE);
}
}
- return false;
-}
-
-#if DEPRECATED_APIS_SUPPORTED
+ return(FALSE);
+}
void NSInstallLinkEditErrorHandlers(
const NSLinkEditErrorHandlers* handlers)
{
DYLD_LOCK_THIS_BLOCK;
- typedef void (*ucallback_t)(const char* symbol_name);
- typedef NSModule (*mcallback_t)(NSSymbol s, NSModule old, NSModule newhandler);
- typedef void (*lcallback_t)(NSLinkEditErrors c, int errorNumber,
- const char* fileName, const char* errorString);
- static void (*p)(ucallback_t undefined, mcallback_t multiple, lcallback_t linkEdit) = NULL;
+ static void (*p)(
+ void (*undefined)(const char* symbol_name),
+ NSModule (*multiple)(NSSymbol s, NSModule old, NSModule newhandler),
+ void (*linkEdit)(NSLinkEditErrors c, int errorNumber,
+ const char* fileName, const char* errorString)) = NULL;
if(p == NULL)
_dyld_func_lookup("__dyld_install_handlers", (void**)&p);
- mcallback_t m = handlers->multiple;
- p(handlers->undefined, m, handlers->linkEdit);
+ p(handlers->undefined, handlers->multiple, handlers->linkEdit);
}
const char*
@@ -342,7 +294,6 @@
_dyld_func_lookup("__dyld_NSAddImage", (void**)&p);
return(p(image_name, options));
}
-#endif // DEPRECATED_APIS_SUPPORTED
/*
* This routine returns the current version of the named shared library the
@@ -355,35 +306,41 @@
* and not a list of current versions that dependent libraries and bundles the
* program is using were built with.
*/
-int32_t NSVersionOfLinkTimeLibrary(const char* libraryName)
-{
- // Lazily call _NSGetMachExecuteHeader() and cache result
+int32_t
+NSVersionOfLinkTimeLibrary(
+const char* libraryName)
+{
+ unsigned long i;
+ struct load_command *load_commands, *lc;
+ struct dylib_command *dl;
+ char *install_name;
#if __LP64__
- static mach_header_64* mh = NULL;
+ static struct mach_header_64 *mh = NULL;
#else
- static mach_header* mh = NULL;
+ static struct mach_header *mh = NULL;
#endif
- if ( mh == NULL )
+ if(mh == NULL)
mh = _NSGetMachExecuteHeader();
+ load_commands = (struct load_command *)
#if __LP64__
- const load_command* lc = (load_command*)((char*)mh + sizeof(mach_header_64));
+ ((char *)mh + sizeof(struct mach_header_64));
#else
- const load_command* lc = (load_command*)((char*)mh + sizeof(mach_header));
+ ((char *)mh + sizeof(struct mach_header));
#endif
- for(uint32_t i = 0; i < mh->ncmds; i++){
+ lc = load_commands;
+ for(i = 0; i < mh->ncmds; i++){
switch ( lc->cmd ) {
case LC_LOAD_DYLIB:
case LC_LOAD_WEAK_DYLIB:
- case LC_LOAD_UPWARD_DYLIB:
- const dylib_command* dl = (dylib_command *)lc;
- const char* install_name = (char*)dl + dl->dylib.name.offset;
- if ( names_match(install_name, libraryName) )
- return dl->dylib.current_version;
+ dl = (struct dylib_command *)lc;
+ install_name = (char *)dl + dl->dylib.name.offset;
+ if(names_match(install_name, libraryName) == TRUE)
+ return(dl->dylib.current_version);
break;
}
- lc = (load_command*)((char*)lc + lc->cmdsize);
+ lc = (struct load_command *)((char *)lc + lc->cmdsize);
}
- return (-1);
+ return(-1);
}
/*
@@ -393,305 +350,41 @@
* it would be "x" and with -framework Foo it would be "Foo"). If the program
* is not using the specified library it returns -1.
*/
-int32_t NSVersionOfRunTimeLibrary(const char* libraryName)
-{
- uint32_t n = _dyld_image_count();
- for(uint32_t i = 0; i < n; i++){
- const mach_header* mh = _dyld_get_image_header(i);
- if ( mh == NULL )
- continue;
- if ( mh->filetype != MH_DYLIB )
- continue;
+int32_t
+NSVersionOfRunTimeLibrary(
+const char* libraryName)
+{
+ unsigned long i, j, n;
+ char *install_name;
+ struct load_command *load_commands, *lc;
+ struct dylib_command *dl;
+ const struct mach_header *mh;
+
+ n = _dyld_image_count();
+ for(i = 0; i < n; i++){
+ mh = _dyld_get_image_header(i);
+ if(mh->filetype != MH_DYLIB)
+ continue;
+ load_commands = (struct load_command *)
#if __LP64__
- const load_command* lc = (load_command*)((char*)mh + sizeof(mach_header_64));
+ ((char *)mh + sizeof(struct mach_header_64));
#else
- const load_command* lc = (load_command*)((char*)mh + sizeof(mach_header));
+ ((char *)mh + sizeof(struct mach_header));
#endif
- for(uint32_t j = 0; j < mh->ncmds; j++){
- if ( lc->cmd == LC_ID_DYLIB ) {
- const dylib_command* dl = (dylib_command*)lc;
- const char* install_name = (char *)dl + dl->dylib.name.offset;
- if ( names_match(install_name, libraryName) )
- return dl->dylib.current_version;
- }
- lc = (load_command*)((char*)lc + lc->cmdsize);
+ lc = load_commands;
+ for(j = 0; j < mh->ncmds; j++){
+ if(lc->cmd == LC_ID_DYLIB){
+ dl = (struct dylib_command *)lc;
+ install_name = (char *)dl + dl->dylib.name.offset;
+ if(names_match(install_name, libraryName) == TRUE)
+ return(dl->dylib.current_version);
+ }
+ lc = (struct load_command *)((char *)lc + lc->cmdsize);
}
}
- return (-1);
-}
-
-
-#define PACKED_VERSION(major, minor, tiny) ((((major) & 0xffff) << 16) | (((minor) & 0xff) << 8) | ((tiny) & 0xff))
-
-
-static bool getVersionLoadCommandInfo(const mach_header* mh, uint32_t* loadCommand, uint32_t* minOS, uint32_t* sdk)
-{
- const load_command* startCmds = NULL;
- if ( mh->magic == MH_MAGIC_64 )
- startCmds = (load_command*)((char *)mh + sizeof(mach_header_64));
- else if ( mh->magic == MH_MAGIC )
- startCmds = (load_command*)((char *)mh + sizeof(mach_header));
- else
- return false; // not a mach-o file, or wrong endianness
-
- const load_command* const cmdsEnd = (load_command*)((char*)startCmds + mh->sizeofcmds);
- const load_command* cmd = startCmds;
- for(uint32_t i = 0; i < mh->ncmds; ++i) {
- const load_command* nextCmd = (load_command*)((char *)cmd + cmd->cmdsize);
- if ( (cmd->cmdsize < 8) || (nextCmd > cmdsEnd) || (nextCmd < startCmds)) {
- return 0;
- }
- const version_min_command* versCmd;
- switch ( cmd->cmd ) {
- case LC_VERSION_MIN_IPHONEOS:
- case LC_VERSION_MIN_MACOSX:
- case LC_VERSION_MIN_TVOS:
- case LC_VERSION_MIN_WATCHOS:
- versCmd = (version_min_command*)cmd;
- *loadCommand = versCmd->cmd;
- *minOS = versCmd->version;
- *sdk = versCmd->sdk;
- return true;
- }
- cmd = nextCmd;
- }
- return false;
-}
-
-#if !__WATCH_OS_VERSION_MIN_REQUIRED && !__TV_OS_VERSION_MIN_REQUIRED
-static uint32_t deriveSDKVersFromDylibs(const mach_header* mh)
-{
- const load_command* startCmds = NULL;
- if ( mh->magic == MH_MAGIC_64 )
- startCmds = (load_command*)((char *)mh + sizeof(mach_header_64));
- else if ( mh->magic == MH_MAGIC )
- startCmds = (load_command*)((char *)mh + sizeof(mach_header));
- else
- return 0; // not a mach-o file, or wrong endianness
-
- const load_command* const cmdsEnd = (load_command*)((char*)startCmds + mh->sizeofcmds);
- const dylib_command* dylibCmd;
- const load_command* cmd = startCmds;
- const char* dylibName;
- #if __IPHONE_OS_VERSION_MIN_REQUIRED
- uint32_t foundationVers = 0;
- #else
- uint32_t libSystemVers = 0;
- #endif
- for(uint32_t i = 0; i < mh->ncmds; ++i) {
- const load_command* nextCmd = (load_command*)((char *)cmd + cmd->cmdsize);
- // <rdar://problem/14381579&16050962> sanity check size of command
- if ( (cmd->cmdsize < 8) || (nextCmd > cmdsEnd) || (nextCmd < startCmds)) {
- return 0;
- }
- switch ( cmd->cmd ) {
- case LC_LOAD_DYLIB:
- case LC_LOAD_WEAK_DYLIB:
- case LC_LOAD_UPWARD_DYLIB:
- dylibCmd = (dylib_command*)cmd;
- // sanity check dylib command layout
- if ( dylibCmd->dylib.name.offset > cmd->cmdsize )
- return 0;
- dylibName = (char*)dylibCmd + dylibCmd->dylib.name.offset;
- #if __IPHONE_OS_VERSION_MIN_REQUIRED
- if ( strcmp(dylibName, "/System/Library/Frameworks/Foundation.framework/Foundation") == 0 )
- foundationVers = dylibCmd->dylib.current_version;
- #else
- if ( strcmp(dylibName, "/usr/lib/libSystem.B.dylib") == 0 )
- libSystemVers = dylibCmd->dylib.current_version;
- #endif
- break;
- }
- cmd = nextCmd;
- }
-
- struct DylibToOSMapping {
- uint32_t dylibVersion;
- uint32_t osVersion;
- };
-
- #if __IPHONE_OS_VERSION_MIN_REQUIRED
- static const DylibToOSMapping foundationMapping[] = {
- { PACKED_VERSION(678,24,0), DYLD_IOS_VERSION_2_0 },
- { PACKED_VERSION(678,26,0), DYLD_IOS_VERSION_2_1 },
- { PACKED_VERSION(678,29,0), DYLD_IOS_VERSION_2_2 },
- { PACKED_VERSION(678,47,0), DYLD_IOS_VERSION_3_0 },
- { PACKED_VERSION(678,51,0), DYLD_IOS_VERSION_3_1 },
- { PACKED_VERSION(678,60,0), DYLD_IOS_VERSION_3_2 },
- { PACKED_VERSION(751,32,0), DYLD_IOS_VERSION_4_0 },
- { PACKED_VERSION(751,37,0), DYLD_IOS_VERSION_4_1 },
- { PACKED_VERSION(751,49,0), DYLD_IOS_VERSION_4_2 },
- { PACKED_VERSION(751,58,0), DYLD_IOS_VERSION_4_3 },
- { PACKED_VERSION(881,0,0), DYLD_IOS_VERSION_5_0 },
- { PACKED_VERSION(890,1,0), DYLD_IOS_VERSION_5_1 },
- { PACKED_VERSION(992,0,0), DYLD_IOS_VERSION_6_0 },
- { PACKED_VERSION(993,0,0), DYLD_IOS_VERSION_6_1 },
- { PACKED_VERSION(1038,14,0),DYLD_IOS_VERSION_7_0 },
- { PACKED_VERSION(0,0,0), DYLD_IOS_VERSION_7_0 }
- // We don't need to expand this table because all recent
- // binaries have LC_VERSION_MIN_ load command.
- };
-
- if ( foundationVers != 0 ) {
- uint32_t lastOsVersion = 0;
- for (const DylibToOSMapping* p=foundationMapping; ; ++p) {
- if ( p->dylibVersion == 0 )
- return p->osVersion;
- if ( foundationVers < p->dylibVersion )
- return lastOsVersion;
- lastOsVersion = p->osVersion;
- }
- }
-
- #else
- // Note: versions are for the GM release. The last entry should
- // always be zero. At the start of the next major version,
- // a new last entry needs to be added and the previous zero
- // updated to the GM dylib version.
- static const DylibToOSMapping libSystemMapping[] = {
- { PACKED_VERSION(88,1,3), DYLD_MACOSX_VERSION_10_4 },
- { PACKED_VERSION(111,0,0), DYLD_MACOSX_VERSION_10_5 },
- { PACKED_VERSION(123,0,0), DYLD_MACOSX_VERSION_10_6 },
- { PACKED_VERSION(159,0,0), DYLD_MACOSX_VERSION_10_7 },
- { PACKED_VERSION(169,3,0), DYLD_MACOSX_VERSION_10_8 },
- { PACKED_VERSION(1197,0,0), DYLD_MACOSX_VERSION_10_9 },
- { PACKED_VERSION(0,0,0), DYLD_MACOSX_VERSION_10_9 }
- // We don't need to expand this table because all recent
- // binaries have LC_VERSION_MIN_ load command.
- };
-
- if ( libSystemVers != 0 ) {
- uint32_t lastOsVersion = 0;
- for (const DylibToOSMapping* p=libSystemMapping; ; ++p) {
- if ( p->dylibVersion == 0 )
- return p->osVersion;
- if ( libSystemVers < p->dylibVersion )
- return lastOsVersion;
- lastOsVersion = p->osVersion;
- }
- }
- #endif
- return 0;
-}
-#endif
-
-
-#if __WATCH_OS_VERSION_MIN_REQUIRED
-static uint32_t watchVersToIOSVers(uint32_t vers)
-{
- return vers + 0x00070000;
-}
-
-uint32_t dyld_get_program_sdk_watch_os_version()
-{
- const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
- uint32_t loadCommand;
- uint32_t minOS;
- uint32_t sdk;
-
- if ( getVersionLoadCommandInfo(mh, &loadCommand, &minOS, &sdk) ) {
- if ( loadCommand == LC_VERSION_MIN_WATCHOS )
- return sdk;
- }
- return 0;
-}
-#endif
-
-/*
- * Returns the sdk version (encode as nibble XXXX.YY.ZZ) the
- * specified binary was built against.
- *
- * First looks for LC_VERSION_MIN_* in binary and if sdk field is
- * not zero, return that value.
- * Otherwise, looks for the libSystem.B.dylib the binary linked
- * against and uses a table to convert that to an sdk version.
- */
-uint32_t dyld_get_sdk_version(const mach_header* mh)
-{
- uint32_t loadCommand;
- uint32_t minOS;
- uint32_t sdk;
-
- if ( getVersionLoadCommandInfo(mh, &loadCommand, &minOS, &sdk) ) {
- switch (loadCommand) {
-#if __WATCH_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_WATCHOS:
- // new binary. sdk version looks like "2.0" but API wants "9.0"
- return watchVersToIOSVers(sdk);
- case LC_VERSION_MIN_IPHONEOS:
- // old binary. sdk matches API semantics so can return directly.
- return sdk;
-#elif __TV_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_TVOS:
- case LC_VERSION_MIN_IPHONEOS:
- return sdk;
-#elif __IPHONE_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_IPHONEOS:
- if ( sdk != 0 ) // old binaries might not have SDK set
- return sdk;
- break;
-#else
- case LC_VERSION_MIN_MACOSX:
- if ( sdk != 0 ) // old binaries might not have SDK set
- return sdk;
- break;
-#endif
- }
- }
-
-#if __WATCH_OS_VERSION_MIN_REQUIRED ||__TV_OS_VERSION_MIN_REQUIRED
- // All WatchOS and tv OS binaries should have version load command.
- return 0;
-#else
- // MacOSX and iOS have old binaries without version load commmand.
- return deriveSDKVersFromDylibs(mh);
-#endif
-}
-
-uint32_t dyld_get_program_sdk_version()
-{
- return dyld_get_sdk_version((mach_header*)_NSGetMachExecuteHeader());
-}
-
-uint32_t dyld_get_min_os_version(const struct mach_header* mh)
-{
- uint32_t loadCommand;
- uint32_t minOS;
- uint32_t sdk;
-
- if ( getVersionLoadCommandInfo(mh, &loadCommand, &minOS, &sdk) ) {
- switch (loadCommand) {
-#if __WATCH_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_WATCHOS:
- // new binary. OS version looks like "2.0" but API wants "9.0"
- return watchVersToIOSVers(minOS);
- case LC_VERSION_MIN_IPHONEOS:
- // old binary. OS matches API semantics so can return directly.
- return minOS;
-#elif __TV_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_TVOS:
- case LC_VERSION_MIN_IPHONEOS:
- return minOS;
-#elif __IPHONE_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_IPHONEOS:
- return minOS;
-#else
- case LC_VERSION_MIN_MACOSX:
- return minOS;
-#endif
- }
- }
- return 0;
-}
-
-
-uint32_t dyld_get_program_min_os_version()
-{
- return dyld_get_min_os_version((mach_header*)_NSGetMachExecuteHeader());
-}
-
-
-#if DEPRECATED_APIS_SUPPORTED
+ return(-1);
+}
+
/*
* NSCreateObjectFileImageFromFile() creates an NSObjectFileImage for the
* specified file name if the file is a correct Mach-O file that can be loaded
@@ -784,6 +477,31 @@
}
+/*
+ * NSFindSectionAndOffsetInObjectFileImage() takes the specified imageOffset
+ * into the specified ObjectFileImage and returns the segment/section name and
+ * offset into that section of that imageOffset. Returns FALSE if the
+ * imageOffset is not in any section. You can used the resulting sectionOffset
+ * to index into the data returned by NSGetSectionDataInObjectFileImage.
+ *
+ * SPI: currently only used by ZeroLink to detect +load methods
+ */
+bool
+NSFindSectionAndOffsetInObjectFileImage(
+NSObjectFileImage objectFileImage,
+unsigned long imageOffset,
+const char** segmentName, /* can be NULL */
+const char** sectionName, /* can be NULL */
+unsigned long* sectionOffset) /* can be NULL */
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(NSObjectFileImage, unsigned long, const char**, const char**, unsigned long*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSFindSectionAndOffsetInObjectFileImage", (void**)&p);
+
+ return p(objectFileImage, imageOffset, segmentName, sectionName, sectionOffset);
+}
/*
@@ -902,6 +620,24 @@
return p(objectFileImage, segmentName, sectionName, size);
}
+/*
+ * NSHasModInitObjectFileImage() returns TRUE if the NSObjectFileImage has any
+ * module initialization sections and FALSE it it does not.
+ *
+ * SPI: currently only used by ZeroLink to detect C++ initializers
+ */
+bool
+NSHasModInitObjectFileImage(
+NSObjectFileImage objectFileImage)
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(NSObjectFileImage) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_NSHasModInitObjectFileImage", (void**)&p);
+
+ return p(objectFileImage);
+}
void
NSLinkEditError(
@@ -946,9 +682,6 @@
return(NULL);
}
#endif
-
-
-#endif // DEPRECATED_APIS_SUPPORTED
/*
*_NSGetExecutablePath copies the path of the executable into the buffer and
@@ -972,7 +705,6 @@
return(p(buf, bufsize));
}
-#if DEPRECATED_APIS_SUPPORTED
void
_dyld_lookup_and_bind(
const char* symbol_name,
@@ -1043,7 +775,6 @@
_dyld_func_lookup("__dyld_bind_fully_image_containing_address", (void**)&p);
return p(address);
}
-#endif // DEPRECATED_APIS_SUPPORTED
/*
@@ -1057,8 +788,7 @@
void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide))
{
DYLD_LOCK_THIS_BLOCK;
- typedef void (*callback_t)(const struct mach_header *mh, intptr_t vmaddr_slide);
- static void (*p)(callback_t func) = NULL;
+ static void (*p)(void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide)) = NULL;
if(p == NULL)
_dyld_func_lookup("__dyld_register_func_for_add_image", (void**)&p);
@@ -1075,8 +805,7 @@
void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide))
{
DYLD_LOCK_THIS_BLOCK;
- typedef void (*callback_t)(const struct mach_header *mh, intptr_t vmaddr_slide);
- static void (*p)(callback_t func) = NULL;
+ static void (*p)(void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide)) = NULL;
if(p == NULL)
_dyld_func_lookup("__dyld_register_func_for_remove_image", (void**)&p);
@@ -1174,20 +903,18 @@
}
#endif
-#if DEPRECATED_APIS_SUPPORTED
bool
_dyld_present(void)
{
// this function exists for compatiblity only
return true;
}
-#endif
uint32_t
_dyld_image_count(void)
{
DYLD_NO_LOCK_THIS_BLOCK;
- static uint32_t (*p)(void) = NULL;
+ static unsigned long (*p)(void) = NULL;
if(p == NULL)
_dyld_func_lookup("__dyld_image_count", (void**)&p);
@@ -1226,18 +953,6 @@
_dyld_func_lookup("__dyld_get_image_name", (void**)&p);
return(p(image_index));
}
-
-// SPI in Mac OS X 10.6
-intptr_t _dyld_get_image_slide(const struct mach_header* mh)
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static intptr_t (*p)(const struct mach_header*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_get_image_slide", (void**)&p);
- return(p(mh));
-}
-
bool
_dyld_image_containing_address(const void* address)
@@ -1262,8 +977,17 @@
return p(address);
}
-
-#if DEPRECATED_APIS_SUPPORTED
+void _dyld_moninit(
+void (*monaddition)(char *lowpc, char *highpc))
+{
+ DYLD_LOCK_THIS_BLOCK;
+ static void (*p)(void (*monaddition)(char *lowpc, char *highpc)) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_moninit", (void**)&p);
+ p(monaddition);
+}
+
bool _dyld_launched_prebound(void)
{
DYLD_LOCK_THIS_BLOCK;
@@ -1283,7 +1007,6 @@
_dyld_func_lookup("__dyld_all_twolevel_modules_prebound", (void**)&p);
return(p());
}
-#endif // DEPRECATED_APIS_SUPPORTED
#include <dlfcn.h>
@@ -1293,6 +1016,7 @@
#include <mach-o/dyld.h>
#include <servers/bootstrap.h>
#include "dyldLibSystemInterface.h"
+#include "dyld_shared_cache_user.h"
// pthread key used to access per-thread dlerror message
@@ -1302,12 +1026,12 @@
// data kept per-thread
struct dlerrorPerThreadData
{
- size_t sizeAllocated;
+ uint32_t sizeAllocated;
char message[1];
};
// function called by dyld to get buffer to store dlerror message
-static char* getPerThreadBufferFor_dlerror(size_t sizeRequired)
+static char* getPerThreadBufferFor_dlerror(uint32_t sizeRequired)
{
// ok to create key lazily because this function is called within dyld lock, so there is no race condition
if (!dlerrorPerThreadKeyInitialized ) {
@@ -1316,11 +1040,11 @@
dlerrorPerThreadKeyInitialized = true;
}
- const size_t size = (sizeRequired < 256) ? 256 : sizeRequired;
+ const int size = (sizeRequired < 256) ? 256 : sizeRequired;
dlerrorPerThreadData* data = (dlerrorPerThreadData*)pthread_getspecific(dlerrorPerThreadKey);
if ( data == NULL ) {
//int mallocSize = offsetof(dlerrorPerThreadData, message[size]);
- const size_t mallocSize = sizeof(dlerrorPerThreadData)+size;
+ const int mallocSize = sizeof(dlerrorPerThreadData)+size;
data = (dlerrorPerThreadData*)malloc(mallocSize);
data->sizeAllocated = size;
pthread_setspecific(dlerrorPerThreadKey, data);
@@ -1328,7 +1052,7 @@
else if ( data->sizeAllocated < sizeRequired ) {
free(data);
//int mallocSize = offsetof(dlerrorPerThreadData, message[size]);
- const size_t mallocSize = sizeof(dlerrorPerThreadData)+size;
+ const int mallocSize = sizeof(dlerrorPerThreadData)+size;
data = (dlerrorPerThreadData*)malloc(mallocSize);
data->sizeAllocated = size;
pthread_setspecific(dlerrorPerThreadKey, data);
@@ -1336,82 +1060,71 @@
return data->message;
}
-// <rdar://problem/10595338> dlerror buffer leak
-// Only allocate buffer if an actual error message needs to be set
-static bool hasPerThreadBufferFor_dlerror()
-{
- if (!dlerrorPerThreadKeyInitialized )
- return false;
-
- return (pthread_getspecific(dlerrorPerThreadKey) != NULL);
-}
-
-// use non-lazy pointer to vproc_swap_integer so that lazy binding does not recurse
-typedef vproc_err_t (*vswapproc)(vproc_t vp, vproc_gsk_t key,int64_t *inval, int64_t *outval);
-static vswapproc swapProc = &vproc_swap_integer;
-
-static bool isLaunchdOwned() {
- static bool first = true;
- static bool result;
- if ( first ) {
- int64_t val = 0;
- (*swapProc)(NULL, VPROC_GSK_IS_MANAGED, NULL, &val);
- result = ( val != 0 );
- first = false;
+
+
+static bool get_update_dyld_shared_cache_bootstrap_port(mach_port_t& mp)
+{
+ static bool found = false;
+ static mach_port_t port;
+ if ( found ) {
+ mp = port;
+ return true;
}
- return result;
-}
-
-
-#if DYLD_SHARED_CACHE_SUPPORT
+ if ( bootstrap_look_up(bootstrap_port, "com.apple.dyld", &port) == KERN_SUCCESS ) {
+ found = true;
+ mp = port;
+ return true;
+ }
+ return false;
+}
+
+#if __ppc__
+ #define CUR_ARCH CPU_TYPE_POWERPC
+#elif __ppc64__
+ #define CUR_ARCH CPU_TYPE_POWERPC64
+#elif __i386__
+ #define CUR_ARCH CPU_TYPE_I386
+#elif __x86_64__
+ #define CUR_ARCH CPU_TYPE_X86_64
+#endif
+
static void shared_cache_missing()
{
- // leave until dyld's that might call this are rare
+ mach_port_t mp;
+ if ( get_update_dyld_shared_cache_bootstrap_port(mp) )
+ dyld_shared_cache_missing(mp, CUR_ARCH, 0);
}
static void shared_cache_out_of_date()
{
- // leave until dyld's that might call this are rare
-}
-#endif // DYLD_SHARED_CACHE_SUPPORT
-
-
-// the table passed to dyld containing thread helpers
-static dyld::LibSystemHelpers sHelpers = { 13, &dyldGlobalLockAcquire, &dyldGlobalLockRelease,
+ mach_port_t mp;
+ if ( get_update_dyld_shared_cache_bootstrap_port(mp) )
+ dyld_shared_cache_out_of_date(mp, CUR_ARCH, 0);
+}
+
+
+
+// that table passed to dyld containing thread helpers
+static dyld::LibSystemHelpers sHelpers = { 4, &dyldGlobalLockAcquire, &dyldGlobalLockRelease,
&getPerThreadBufferFor_dlerror, &malloc, &free, &__cxa_atexit,
- #if DYLD_SHARED_CACHE_SUPPORT
&shared_cache_missing, &shared_cache_out_of_date,
- #else
- NULL, NULL,
- #endif
- NULL, NULL,
- &pthread_key_create, &pthread_setspecific,
- &malloc_size,
- &pthread_getspecific,
- &__cxa_finalize,
- address_of_start,
- &hasPerThreadBufferFor_dlerror,
- &isLaunchdOwned,
- &vm_allocate,
- &mmap,
- &__cxa_finalize_ranges};
+ NULL, NULL };
//
// during initialization of libSystem this routine will run
// and call dyld, registering the helper functions.
//
-extern "C" void tlv_initializer();
-extern "C" void _dyld_initializer();
+extern "C" void _dyld_initializer() __attribute__((visibility("hidden")));
void _dyld_initializer()
-{
+{
+ DYLD_LOCK_INITIALIZER;
+
void (*p)(dyld::LibSystemHelpers*);
_dyld_func_lookup("__dyld_register_thread_helpers", (void**)&p);
if(p != NULL)
p(&sHelpers);
-
- tlv_initializer();
}
@@ -1495,119 +1208,6 @@
}
-const struct dyld_all_image_infos* _dyld_get_all_image_infos()
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static struct dyld_all_image_infos* (*p)() = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_get_all_image_infos", (void**)&p);
- return p();
-}
-
-#if SUPPORT_ZERO_COST_EXCEPTIONS
-bool _dyld_find_unwind_sections(void* addr, dyld_unwind_sections* info)
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static void* (*p)(void*, dyld_unwind_sections*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_find_unwind_sections", (void**)&p);
- return p(addr, info);
-}
-#endif
-
-
-#if __i386__ || __x86_64__ || __arm__ || __arm64__
-__attribute__((visibility("hidden")))
-void* _dyld_fast_stub_entry(void* loadercache, long lazyinfo)
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static void* (*p)(void*, long) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_fast_stub_entry", (void**)&p);
- return p(loadercache, lazyinfo);
-}
-#endif
-
-
-const char* dyld_image_path_containing_address(const void* addr)
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static const char* (*p)(const void*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_image_path_containing_address", (void**)&p);
- return p(addr);
-}
-
-const struct mach_header* dyld_image_header_containing_address(const void* addr)
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static const mach_header* (*p)(const void*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_get_image_header_containing_address", (void**)&p);
- return p(addr);
-}
-
-
-bool dyld_shared_cache_some_image_overridden()
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static bool (*p)() = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_shared_cache_some_image_overridden", (void**)&p);
- return p();
-}
-
-
-bool dyld_process_is_restricted()
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static bool (*p)() = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_process_is_restricted", (void**)&p);
- return p();
-}
-
-#if DYLD_SHARED_CACHE_SUPPORT
-const char* dyld_shared_cache_file_path()
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static const char* (*p)() = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_shared_cache_file_path", (void**)&p);
- return p();
-}
-#endif
-
-void dyld_dynamic_interpose(const struct mach_header* mh, const struct dyld_interpose_tuple array[], size_t count)
-{
- DYLD_LOCK_THIS_BLOCK;
- static void (*p)(const struct mach_header* mh, const struct dyld_interpose_tuple array[], size_t count) = NULL;
-
- if (p == NULL)
- _dyld_func_lookup("__dyld_dynamic_interpose", (void**)&p);
- p(mh, array, count);
-}
-
-
-// SPI called __fork
-void _dyld_fork_child()
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static void (*p)() = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_fork_child", (void**)&p);
- return p();
-}
-
-
-
-
+
+
+