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50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
// RUN: %empty-directory(%t)
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// RUN: xcrun -sdk %target-sdk-name %clang -c -arch %target-cpu %s -o %t/SegmentAlignment.o
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// RUN: %target-build-swift %S/Inputs/SegmentAlignment.swift -Xlinker %t/SegmentAlignment.o -o %t/a.out
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// RUN: %target-run %t/a.out | %FileCheck %s
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// REQUIRES: executable_test
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// REQUIRES: CPU=armv7
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// Verify 16K segment alignment on 32-bit iOS device.
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// The linker sets this automatically on iOS 8+,
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// but we deploy to iOS 7.
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <assert.h>
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#include <mach-o/dyld.h>
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#include <mach-o/getsect.h>
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#if __LP64__
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#define HeaderType struct mach_header_64
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#else
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#define HeaderType struct mach_header
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#endif
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// SegmentAlignment.swift import SpriteKit and calls Test().
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void Test(void)
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{
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for (int i = 0; i < _dyld_image_count(); i++) {
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const char *name = _dyld_get_image_name(i);
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if (strstr(name, "libswift") == 0) continue;
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unsigned long size;
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const struct mach_header *mhdr = _dyld_get_image_header(i);
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uint8_t *textAddress =
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getsegmentdata((HeaderType *)mhdr, "__TEXT", &size);
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uint8_t *dataAddress =
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getsegmentdata((HeaderType *)mhdr, "__DATA", &size);
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printf("%s %p %p\n", name, textAddress, dataAddress);
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assert((uintptr_t)textAddress % 0x4000 == 0);
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assert((uintptr_t)dataAddress % 0x4000 == 0);
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}
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printf("Flawless victory\n");
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// CHECK-DAG: libswiftSpriteKit.dylib
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// CHECK-DAG: libswiftUIKit.dylib
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// CHECK-DAG: libswiftCore.dylib
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// CHECK: Flawless victory
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}
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