gold/testsuite/initpri1.c

/* initpri1.c -- test constructor priorities.

   Copyright (C) 2007-2021 Free Software Foundation, Inc.
   Copied from the gcc testsuite, where the test was contributed by
   Mark Mitchell <mark@codesourcery.com>.

   This file is part of gold.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

/* This tests that the linker handles constructor and destructor
   priorities correctly.  */

#include <stdlib.h>

/* Constructor priorities in attributes were added in gcc 4.3.  */
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 2)

int i;
int j;

void c1(void) __attribute__((constructor (500)));
void c2(void) __attribute__((constructor (700)));
void c3(void) __attribute__((constructor (600)));

void c1() {
  if (i++ != 0)
    abort ();
}

void c2() {
  if (i++ != 2)
    abort ();
}

void c3() {
  if (i++ != 1)
    abort ();
}

void d1(void) __attribute__((destructor (500)));
void d2(void) __attribute__((destructor (700)));
void d3(void) __attribute__((destructor (600)));

void d1() {
  if (--i != 0)
    abort ();
}

void d2() {
  if (--i != 2)
    abort ();
}

void d3() {
  if (j != 4)
    abort ();
  if (--i != 1)
    abort ();
}

void cd4(void) __attribute__((constructor (800), destructor (800)));

void cd4() {
  if (i != 3)
    abort ();
  ++j;
}

void cd5(void) __attribute__((constructor, destructor));

void cd5() {
  if (i != 3)
    abort();
  ++j;
}

int main (void) {
  if (i != 3)
    return 1;
  if (j != 2)
    abort ();
  return 0;
}

#else /* !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 2)) */

int main (void) {
  exit (0);
}

#endif /* !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 2)) */