mirror of
https://github.com/golang/go
synced 2024-11-18 04:44:46 -07:00
110fa22c45
Because there is no libgcc. Change-Id: I3b3f80791a1db4c2b7318f81a115972cd2237f07 Signed-off-by: Shenghou Ma <minux@golang.org> Reviewed-on: https://go-review.googlesource.com/8786 Reviewed-by: David Crawshaw <crawshaw@golang.org>
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
// Copyright 2012 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package cgotest
|
|
|
|
/*
|
|
// libgcc on ARM might be compiled as thumb code, but our 5l
|
|
// can't handle that, so we have to disable this test on arm.
|
|
#ifdef __ARMEL__
|
|
#include <stdio.h>
|
|
int vabs(int x) {
|
|
puts("testLibgcc is disabled on ARM because 5l cannot handle thumb library.");
|
|
return (x < 0) ? -x : x;
|
|
}
|
|
#elif defined(__arm64__) && defined(__clang__)
|
|
#include <stdio.h>
|
|
int vabs(int x) {
|
|
puts("testLibgcc is disabled on ARM64 with clang due to lack of libgcc.");
|
|
return (x < 0) ? -x : x;
|
|
}
|
|
#else
|
|
int __absvsi2(int); // dummy prototype for libgcc function
|
|
// we shouldn't name the function abs, as gcc might use
|
|
// the builtin one.
|
|
int vabs(int x) { return __absvsi2(x); }
|
|
#endif
|
|
*/
|
|
import "C"
|
|
|
|
import "testing"
|
|
|
|
func testLibgcc(t *testing.T) {
|
|
var table = []struct {
|
|
in, out C.int
|
|
}{
|
|
{0, 0},
|
|
{1, 1},
|
|
{-42, 42},
|
|
{1000300, 1000300},
|
|
{1 - 1<<31, 1<<31 - 1},
|
|
}
|
|
for _, v := range table {
|
|
if o := C.vabs(v.in); o != v.out {
|
|
t.Fatalf("abs(%d) got %d, should be %d", v.in, o, v.out)
|
|
return
|
|
}
|
|
}
|
|
}
|