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go/misc/cgo/test/issue4029.c
Peter Gonda 23ce272bb1 cmd/cgo: permit missing dynamic symbol section
Allow static complication of cgo enabled libraries.

Fixes #16651

Change-Id: I0729ee4e6e5f9bd1cbdb1bc2dcbfe34463df547c
Reviewed-on: https://go-review.googlesource.com/89655
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-02 17:50:00 +00:00

30 lines
752 B
C

// Copyright 2015 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.
// +build !windows,!static
#include <stdint.h>
#include <dlfcn.h>
// Write our own versions of dlopen/dlsym/dlclose so that we represent
// the opaque handle as a Go uintptr rather than a Go pointer to avoid
// garbage collector confusion. See issue 23663.
uintptr_t dlopen4029(char* name, int flags) {
return (uintptr_t)(dlopen(name, flags));
}
uintptr_t dlsym4029(uintptr_t handle, char* name) {
return (uintptr_t)(dlsym((void*)(handle), name));
}
int dlclose4029(uintptr_t handle) {
return dlclose((void*)(handle));
}
void call4029(void *arg) {
void (*fn)(void) = arg;
fn();
}