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--- dyld/dyld-1245.1/cache_builder/BuilderConfig.cpp
+++ dyld/dyld-1235.2/cache_builder/BuilderConfig.cpp
@@ -103,14 +103,7 @@
if ( (archName == "x86_64") || (archName == "x86_64h") ) {
this->subCacheTextLimit = CacheVMSize(512_MB);
} else {
- // Note the 64MB is to give us just a little more space before making another
- // sub cache file. We want to make as few files as possible for things like page-tables
- // The real constraint here is that TEXT+DATA must stay within 2GB for int32_t relative
- // offsets in objc/swift metadata and in unwind info. But also the __objc_opt section
- // in libobjc needs to reach the __OBJC_RO in the read-only subcache. That comes after
- // data and as of writing leaves 150MB from its end until the 2GB mark. So take 64MB from
- // that 150MB and hope its ok for now.
- this->subCacheTextLimit = CacheVMSize(1.5_GB + 64_MB);
+ this->subCacheTextLimit = CacheVMSize(1.5_GB);
}
struct CacheLayout
@@ -140,6 +133,11 @@
} else if ( archName == "arm64_32" ) {
layout.baseAddress = ARM64_32_SHARED_REGION_START;
layout.cacheSize = 2_GB;
+
+ // The cache contents can't exceed 2GB, but use the space above it for the slide
+ if ( ARM64_32_SHARED_REGION_SIZE >= layout.cacheSize ) {
+ this->cacheFixedSlide = ARM64_32_SHARED_REGION_SIZE - layout.cacheSize;
+ }
} else {
assert("Unknown arch");
}