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Decouple Obj-C literals generator from context and single LLVM module

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This commit is contained in:
Svyatoslav Scherbina
2019-10-11 12:28:00 +03:00
committed by SvyatoslavScherbina
parent fde7265dae
commit cf06b6eb35
1 changed files with 32 additions and 16 deletions
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backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/objc/ObjCDataGenerator.kt
+32 -16
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@@ -246,32 +246,48 @@ internal class ObjCDataGenerator(val codegen: CodeGenerator) {
context.llvm.compilerUsedGlobals += global.llvmGlobal
}
private val classNames =
CStringLiteralsTable("OBJC_CLASS_NAME_", "__TEXT,__objc_classname,cstring_literals")
private val classNames = CStringLiteralsTable(classNameGenerator)
private val selectors =
CStringLiteralsTable("OBJC_METH_VAR_NAME_", "__TEXT,__objc_methname,cstring_literals")
private val selectors = CStringLiteralsTable(selectorGenerator)
private val encodings =
CStringLiteralsTable("OBJC_METH_VAR_TYPE_", "__TEXT,__objc_methtype,cstring_literals")
private val encodings = CStringLiteralsTable(encodingGenerator)
private inner class CStringLiteralsTable(val label: String, val section: String) {
private inner class CStringLiteralsTable(val generator: CStringLiteralsGenerator) {
private val literals = mutableMapOf<String, ConstPointer>()
fun get(value: String) = literals.getOrPut(value) {
val globalPointer = generator.generate(context.llvmModule!!, value)
context.llvm.compilerUsedGlobals += globalPointer.llvm
globalPointer.getElementPtr(0)
}
}
companion object {
val classNameGenerator =
CStringLiteralsGenerator("OBJC_CLASS_NAME_", "__TEXT,__objc_classname,cstring_literals")
val selectorGenerator =
CStringLiteralsGenerator("OBJC_METH_VAR_NAME_", "__TEXT,__objc_methname,cstring_literals")
private val encodingGenerator =
CStringLiteralsGenerator("OBJC_METH_VAR_TYPE_", "__TEXT,__objc_methtype,cstring_literals")
}
class CStringLiteralsGenerator(val label: String, val section: String) {
fun generate(module: LLVMModuleRef, value: String): ConstPointer {
val bytes = value.toByteArray(Charsets.UTF_8).map { Int8(it) } + Int8(0)
val global = context.llvm.staticData.placeGlobalArray(label, int8Type, bytes)
val initializer = ConstArray(int8Type, bytes)
val llvmGlobal = LLVMAddGlobal(module, initializer.llvmType, label)!!
LLVMSetInitializer(llvmGlobal, initializer.llvm)
global.setConstant(true)
global.setLinkage(LLVMLinkage.LLVMPrivateLinkage)
global.setSection(section)
LLVMSetUnnamedAddr(global.llvmGlobal, 1)
global.setAlignment(1)
LLVMSetGlobalConstant(llvmGlobal, 1)
LLVMSetLinkage(llvmGlobal, LLVMLinkage.LLVMPrivateLinkage)
LLVMSetSection(llvmGlobal, section)
LLVMSetUnnamedAddr(llvmGlobal, 1)
LLVMSetAlignment(llvmGlobal, 1)
context.llvm.compilerUsedGlobals += global.llvmGlobal
global.pointer.getElementPtr(0)
return constPointer(llvmGlobal)
}
}
}