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/* Copyright (C) 2009-2017 Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.com>.
This file is part of the GNU Transactional Memory Library (libitm).
Libitm 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.
Libitm 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.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "libitm_i.h"
#include <stdarg.h>
#include <stdio.h>
namespace GTM HIDDEN {
static void
gtm_verror (const char *fmt, va_list list)
{
fputs ("\nlibitm: ", stderr);
vfprintf (stderr, fmt, list);
fputc ('\n', stderr);
}
void
GTM_error (const char *fmt, ...)
{
va_list list;
va_start (list, fmt);
gtm_verror (fmt, list);
va_end (list);
}
void
GTM_fatal (const char *fmt, ...)
{
va_list list;
va_start (list, fmt);
gtm_verror (fmt, list);
va_end (list);
exit (EXIT_FAILURE);
}
void *
xmalloc (size_t size, bool separate_cl)
{
void *r;
#ifdef HAVE_POSIX_MEMALIGN
if (separate_cl)
{
if (posix_memalign (&r, HW_CACHELINE_SIZE, size))
GTM_fatal ("Out of memory allocating %lu bytes aligned on cache line",
(unsigned long) size);
}
else
#endif
{
r = malloc (size);
if (r == 0)
GTM_fatal ("Out of memory allocating %lu bytes",
(unsigned long) size);
}
return r;
}
void *
xcalloc (size_t size, bool separate_cl)
{
// TODO Use posix_memalign if separate_cl is true, or some other allocation
// method that will avoid sharing cache lines with data used by other
// threads.
void *r = calloc (1, size);
if (r == 0)
GTM_fatal ("Out of memory allocating %lu bytes", (unsigned long) size);
return r;
}
void *
xrealloc (void *old, size_t size, bool separate_cl)
{
// TODO Use posix_memalign if separate_cl is true, or some other allocation
// method that will avoid sharing cache lines with data used by other
// threads.
void *r = realloc (old, size);
if (r == 0)
GTM_fatal ("Out of memory allocating %lu bytes", (unsigned long) size);
return r;
}
} // namespace GTM
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