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/* Test that program loading does not call malloc.
Copyright (C) 2024-2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <string.h>
#include <unistd.h>
static void
print (const char *s)
{
const char *end = s + strlen (s);
while (s < end)
{
ssize_t ret = write (STDOUT_FILENO, s, end - s);
if (ret <= 0)
_exit (2);
s += ret;
}
}
static void __attribute__ ((noreturn))
unexpected_call (const char *function)
{
print ("error: unexpected call to ");
print (function);
print ("\n");
_exit (1);
}
/* These are the malloc functions implement in elf/dl-minimal.c. */
void
free (void *ignored)
{
unexpected_call ("free");
}
void *
calloc (size_t ignored1, size_t ignored2)
{
unexpected_call ("calloc");
}
void *
malloc (size_t ignored)
{
unexpected_call ("malloc");
}
void *
realloc (void *ignored1, size_t ignored2)
{
unexpected_call ("realloc");
}
int
main (void)
{
/* Do not use the test wrapper, to avoid spurious malloc calls from it. */
return 0;
}
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