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