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/* Test .type directives on assembler functions.
Copyright 2001 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP 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 3 of the License, or (at your
option) any later version.
The GNU MP 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 MP Library. If not, see http://www.gnu.org/licenses/. */
#include <stdio.h>
#include <stdlib.h>
#include "gmp.h"
#include "gmp-impl.h"
#include "tests.h"
/* This apparently trivial test is designed to detect missing .type and
.size directives in asm code, per the problem described under
GMP_ASM_TYPE in acinclude.m4.
A failure can be provoked in a shared or shared+static build by making
TYPE and SIZE in config.m4 empty, either by editing it or by configuring
with
./configure gmp_cv_asm_type= gmp_cv_asm_size=
mpn_add_n is used for the test because normally it's implemented in
assembler on a CPU that has any asm code.
Enhancement: As noted with GMP_ASM_TYPE, if .type is wrong but .size is
right then everything works, but uses code copied down to the mainline
data area. Maybe we could detect that if we built a test library with an
object that had .size deliberately disabled. */
int
main (void)
{
static const mp_limb_t x[3] = { 1, 2, 3 };
static const mp_limb_t y[3] = { 4, 5, 6 };
static const mp_limb_t want[3] = { 5, 7, 9 };
mp_limb_t got[3];
mpn_add_n (got, x, y, (mp_size_t) 3);
if (refmpn_cmp (got, want, (mp_size_t) 3) != 0)
{
printf ("Wrong result from mpn_add_n\n");
abort ();
}
exit (0);
}
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