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--- dyld/dyld-1285.19/cache_builder/SubCache.cpp
+++ dyld/dyld-1330/cache_builder/SubCache.cpp
@@ -38,7 +38,6 @@
#include <CommonCrypto/CommonDigest.h>
#include <CommonCrypto/CommonDigestSPI.h>
-using dyld3::GradedArchs;
using dyld3::MachOFile;
using mach_o::Header;
@@ -427,8 +426,8 @@
const char* readonlySuffix = forceDevelopmentSubCacheSuffix ? ".development.dyldreadonly" : ".dyldreadonly";
const char* subCacheSuffix = forceDevelopmentSubCacheSuffix ? ".development" : "";
- if ( platform == Platform::macOS ) {
- // macOS never has a .development suffix
+ if ( (platform == Platform::macOS) || platform.isSimulator() ) {
+ // macOS/sims never has a .development suffix
this->fileSuffix = "." + json::decimal(subCacheIndex);
} else if ( platform == Platform::driverKit ) {
// driverKit never has a .development suffix
@@ -456,7 +455,7 @@
static std::string getCodeSigningIdentifier(const BuilderOptions& options)
{
std::string cacheIdentifier = "com.apple.dyld.cache.";
- cacheIdentifier += options.archs.name();
+ cacheIdentifier += options.arch.name();
if ( options.dylibsRemovedFromDisk ) {
switch ( options.kind ) {
case CacheKind::development:
@@ -744,6 +743,14 @@
// Note: cdHash is defined as first 20 bytes of hash
memcpy(this->cdHash, fullCdHash, 20);
+ if ( layout.agile ) {
+ // hash of entire code directory (cdHash) uses same hash as each page
+ uint8_t altfullCdHash[CS_HASH_SIZE_SHA256];
+ CCDigest(kCCDigestSHA256, (const uint8_t*)cd256, layout.cd256Size, altfullCdHash);
+ // Note: cdHash is defined as first 20 bytes of hash
+ memcpy(this->agilecdHash, altfullCdHash, 20);
+ }
+
// Set the UUID string in the subcache
uuid_unparse_upper(dyldCacheHeader->uuid, this->uuidString);
}
@@ -962,7 +969,8 @@
return count;
}
-void SubCache::addCacheHeaderChunk(const BuilderConfig& config, const std::span<CacheDylib> cacheDylibs)
+void SubCache::addCacheHeaderChunk(const BuilderOptions& options, const BuilderConfig& config,
+ const std::span<CacheDylib> cacheDylibs)
{
// calculate size of header info and where first dylib's mach_header should start
uint64_t numMappings = this->regions.size();
@@ -975,7 +983,7 @@
startOffset += sizeof(dyld_cache_tpro_mapping_info) * numTPRORegions(config, this, this->subCaches);
}
- if ( this->needsCacheHeaderImageList() ) {
+ if ( this->needsCacheHeaderImageList(options) ) {
startOffset += sizeof(dyld_cache_image_info) * cacheDylibs.size();
startOffset += sizeof(dyld_cache_image_text_info) * cacheDylibs.size();
for ( const CacheDylib& cacheDylib : cacheDylibs ) {
@@ -1217,12 +1225,11 @@
void SubCache::addPatchTableChunk(PatchTableOptimizer& patchTableOptimizer)
{
- // We can't compute the size yet. We need to know how many fixups we have
- // And yet we have an estimate, so we'll use it
+ // We can't compute the size yet so just make an empty chunk
this->patchTable = std::make_unique<PatchTableChunk>();
- this->patchTable->cacheVMSize = CacheVMSize(patchTableOptimizer.patchTableTotalByteSize);
- this->patchTable->subCacheFileSize = CacheFileSize(patchTableOptimizer.patchTableTotalByteSize);
+ this->patchTable->cacheVMSize = CacheVMSize(0ULL);
+ this->patchTable->subCacheFileSize = CacheFileSize(0ULL);
patchTableOptimizer.patchTableChunk = this->patchTable.get();
@@ -1542,15 +1549,16 @@
}
void SubCache::writeCacheHeader(const BuilderOptions& options, const BuilderConfig& config,
- const std::span<CacheDylib> cacheDylibs)
+ const std::span<CacheDylib> cacheDylibs,
+ uint32_t osVersion, uint32_t altPlatform, uint32_t altOsVersion)
{
Chunk& cacheHeaderChunk = *this->cacheHeader.get();
dyld_cache_header* dyldCacheHeader = (dyld_cache_header*)cacheHeaderChunk.subCacheBuffer;
// "dyld_v1" + spaces + archName(), with enough spaces to pad to 15 bytes
std::string magic = "dyld_v1";
- magic.append(15 - magic.length() - strlen(options.archs.name()), ' ');
- magic.append(options.archs.name());
+ magic.append(15 - magic.length() - strlen(options.arch.name()), ' ');
+ magic.append(options.arch.name());
assert(magic.length() == 15);
// Num of mappings depends on cache layout.
@@ -1621,9 +1629,9 @@
dyldCacheHeader->programsPBLSetPoolSize = 0; // set later only on the main cache file
dyldCacheHeader->programTrieAddr = 0; // set later only on the main cache file
dyldCacheHeader->programTrieSize = 0; // set later only on the main cache file
- dyldCacheHeader->osVersion = 0; // set later only on the main cache file
- dyldCacheHeader->altPlatform = 0; // set later only on the main cache file
- dyldCacheHeader->altOsVersion = 0; // set later only on the main cache file
+ dyldCacheHeader->osVersion = osVersion;
+ dyldCacheHeader->altPlatform = altPlatform;
+ dyldCacheHeader->altOsVersion = altOsVersion;
dyldCacheHeader->swiftOptsOffset = 0; // set later only on the main cache file
dyldCacheHeader->swiftOptsSize = 0; // set later only on the main cache file
dyldCacheHeader->subCacheArrayOffset = 0;
@@ -1655,7 +1663,6 @@
void SubCache::addMainCacheHeaderInfo(const BuilderOptions& options, const BuilderConfig& config,
const std::span<CacheDylib> cacheDylibs,
CacheVMSize totalVMSize, uint64_t maxSlide,
- uint32_t osVersion, uint32_t altPlatform, uint32_t altOsVersion,
CacheVMAddress dyldInCacheUnslidAddr,
CacheVMAddress dyldInCacheEntryUnslidAddr,
const DylibTrieOptimizer& dylibTrieOptimizer,
@@ -1699,10 +1706,6 @@
dyldCacheHeader->dyldInCacheMH = dyldInCacheUnslidAddr.rawValue();
dyldCacheHeader->dyldInCacheEntry = dyldInCacheEntryUnslidAddr.rawValue();
-
- dyldCacheHeader->osVersion = osVersion;
- dyldCacheHeader->altPlatform = altPlatform;
- dyldCacheHeader->altOsVersion = altOsVersion;
// record max slide now that final size is established
dyldCacheHeader->maxSlide = maxSlide;
@@ -1783,7 +1786,7 @@
const BuilderConfig& config,
const std::span<CacheDylib> cacheDylibs)
{
- if ( !this->needsCacheHeaderImageList() )
+ if ( !this->needsCacheHeaderImageList(options) )
return;
Chunk& cacheHeaderChunk = *this->cacheHeader.get();
@@ -1917,16 +1920,17 @@
return this->kind == Kind::stubsCustomer;
}
-bool SubCache::needsCacheHeaderImageList() const
+bool SubCache::needsCacheHeaderImageList(const BuilderOptions& options) const
{
// Symbols and stubs files don't need an image list
- // We'd like to not add the image list to subcaches, only the main cache, but Rosetta needs
- // the image list on subCaches.
switch ( this->kind ) {
case Kind::mainDevelopment:
case Kind::mainCustomer:
+ return true;
case Kind::subUniversal:
- return true;
+ // We'd like to not add the image list to subcaches, only the main cache, but Rosetta needs
+ // the image list on subCaches.
+ return options.arch.sameCpu(mach_o::Architecture::x86_64);
case Kind::stubsDevelopment:
case Kind::stubsCustomer:
case Kind::symbols: