llvm-project/compiler-rt/test/crt/ctor_dtor.c

42 lines
974 B
C

// RUN: %clang -fno-use-init-array -g -c %s -o %t.o
// RUN: %clang -o %t -no-pie -nostdlib %crt1 %crti %crtbegin %t.o -lc %libgcc %crtend %crtn
// RUN: %run %t 2>&1 | FileCheck %s
#include <stdio.h>
#include <stdlib.h>
// Ensure the various startup functions are called in the proper order.
// CHECK: __register_frame_info()
/// ctor() is here if ld.so/libc supports DT_INIT/DT_FINI
// CHECK: main()
/// dtor() is here if ld.so/libc supports DT_INIT/DT_FINI
// CHECK: __deregister_frame_info()
struct object;
static int counter;
void __register_frame_info(const void *fi, struct object *obj) {
printf("__register_frame_info()\n");
}
void __deregister_frame_info(const void *fi) {
printf("__deregister_frame_info()\n");
}
void __attribute__((constructor)) ctor() {
printf("ctor()\n");
++counter;
}
void __attribute__((destructor)) dtor() {
printf("dtor()\n");
if (--counter != 0)
abort();
}
int main() {
printf("main()\n");
return 0;
}