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a4d76261f0
A follow-on to b436825948 where
-m${platform}-version-min was traded for -target. The lit substitution
for %target-clang was relying on -arch and -version-min to specify the
intended platform version to the linker. With the removal of
version-min, only arch was given, so a fallback platform was selected.
For the iPhone simulator, for example, this is iOS 10.99 despite there
being no such simulator for that deployment version. Provide the variant
triple everywhere instead. This has the added benefit of unifying the
special paths catalyst takes.
Fixes rdar://73174820
79 lines
4.0 KiB
Objective-C
79 lines
4.0 KiB
Objective-C
// Check that when Objective-C is first to touch a Swift class, it gives the
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// Swift runtime a chance to update instance size and ivar offset metadata.
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// RUN: %empty-directory(%t)
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// RUN: %target-build-swift -emit-library -emit-module -o %t/libResilient.dylib %S/Inputs/class-layout-from-objc/Resilient.swift -Xlinker -install_name -Xlinker @executable_path/libResilient.dylib -enable-library-evolution -DSMALL
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// RUN: %target-clang -c %S/Inputs/class-layout-from-objc/OneWordSuperclass.m -fmodules -fobjc-arc -o %t/OneWordSuperclass.o
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// RUN: %target-build-swift -emit-library -o %t/libClasses.dylib -emit-objc-header-path %t/Classes.h -I %t -I %S/Inputs/class-layout-from-objc/ %S/Inputs/class-layout-from-objc/Classes.swift %t/OneWordSuperclass.o -Xlinker -install_name -Xlinker @executable_path/libClasses.dylib -lResilient -L %t -Xfrontend -read-legacy-type-info-path=%S/Inputs/class-layout-from-objc/small.yaml
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// RUN: %target-clang %s -I %S/Inputs/class-layout-from-objc/ -I %t -fmodules -fobjc-arc -o %t/main -lResilient -lClasses -L %t
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// RUN: %target-codesign %t/main %t/libResilient.dylib %t/libClasses.dylib
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// RUN: %target-run %t/main OLD %t/libResilient.dylib %t/libClasses.dylib
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// RUN: %target-build-swift -emit-library -emit-module -o %t/libResilient.dylib %S/Inputs/class-layout-from-objc/Resilient.swift -Xlinker -install_name -Xlinker @executable_path/libResilient.dylib -enable-library-evolution -DBIG
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// RUN: %target-codesign %t/libResilient.dylib
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// RUN: %target-run %t/main NEW %t/libResilient.dylib %t/libClasses.dylib
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// Try again when the class itself is also resilient.
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// RUN: %target-build-swift -emit-library -o %t/libClasses.dylib -emit-objc-header-path %t/Classes.h -I %S/Inputs/class-layout-from-objc/ -I %t %S/Inputs/class-layout-from-objc/Classes.swift %t/OneWordSuperclass.o -Xlinker -install_name -Xlinker @executable_path/libClasses.dylib -lResilient -L %t -Xfrontend -read-legacy-type-info-path=%S/Inputs/class-layout-from-objc/big.yaml
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// RUN: %target-codesign %t/libClasses.dylib
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// RUN: %target-run %t/main OLD %t/libResilient.dylib %t/libClasses.dylib
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// RUN: %target-build-swift -emit-library -emit-module -o %t/libResilient.dylib %S/Inputs/class-layout-from-objc/Resilient.swift -Xlinker -install_name -Xlinker @executable_path/libResilient.dylib -enable-library-evolution -DSMALL
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// RUN: %target-codesign %t/libResilient.dylib
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// RUN: %target-run %t/main NEW %t/libResilient.dylib %t/libClasses.dylib
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// REQUIRES: executable_test
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// REQUIRES: objc_interop
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#import <objc/runtime.h>
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#import <assert.h>
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#import <dlfcn.h>
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#import <stdbool.h>
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#import <string.h>
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#import "Classes.h"
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void checkClass(Class c) {
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assert(c);
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size_t expectedSize = [c totalSize];
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size_t actualSize = class_getInstanceSize([c class]);
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NSLog(@"%@: expected size %zd, actual size %zd", c, expectedSize, actualSize);
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assert(expectedSize == actualSize);
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size_t expectedOffsetOfFirst = [c offsetOfFirst];
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size_t offsetOfFirst = ivar_getOffset(class_getInstanceVariable(c, "first"));
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NSLog(@"expected offset of 'first' %zd, actual %zd",
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expectedOffsetOfFirst, offsetOfFirst);
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assert(offsetOfFirst == expectedOffsetOfFirst);
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size_t offsetOfLast = ivar_getOffset(class_getInstanceVariable(c, "last"));
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NSLog(@"offset of 'last' %zd", offsetOfLast);
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assert(offsetOfLast == actualSize - sizeof(intptr_t));
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}
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int main(int argc, const char * const argv[]) {
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assert(argc > 1);
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if (!strcmp(argv[1], "OLD")) {
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;
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} else if (!strcmp(argv[1], "NEW")) {
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// Only test the new behavior on a new enough libobjc.
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if (!dlsym(RTLD_NEXT, "_objc_realizeClassFromSwift")) {
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fprintf(stderr, "skipping evolution tests; OS too old\n");
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return EXIT_SUCCESS;
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}
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} else {
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fprintf(stderr, "usage: %s (OLD|NEW)\n", argv[0]);
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return EXIT_FAILURE;
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}
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@autoreleasepool {
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NSLog(@"%zd", class_getInstanceSize([OneWordSuperclass class]));
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checkClass([StaticClass class]);
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checkClass(objc_getClass("Classes.DynamicClass"));
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checkClass(objc_getClass("Classes.PureSwiftClass"));
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}
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}
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