85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
/*
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Serene --- Yet an other Lisp
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Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// Package dl provides the necessary interface to interact with share
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// libraries
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package dl
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/*
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#cgo linux LDFLAGS: -ldl
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#cgo pkg-config: libffi
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#include <dlfcn.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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static uintptr_t openShareLib(const char* path, char** err) {
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void* h = dlopen(path, RTLD_NOW|RTLD_GLOBAL);
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if (h == NULL) {
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*err = (char*)dlerror();
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}
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return (uintptr_t)h;
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}
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static void* shareLibLookup(uintptr_t h, const char* name, char** err) {
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void* r = dlsym((void*)h, name);
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if (r == NULL) {
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*err = (char*)dlerror();
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}
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return r;
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}
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*/
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// import "C"
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// import (
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// "fmt"
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// "unsafe"
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// )
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// type SharedLib struct{}
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// func Open(libPath string) (*SharedLib, error) {
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// cPath := make([]byte, C.PATH_MAX+1)
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// cRelName := make([]byte, len(libPath)+1)
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// copy(cRelName, libPath)
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// // If the given libPath exists, fill the cPath with the absolute path
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// // to the file (it follows symlinks).
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// if C.realpath(
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// (*C.char)(unsafe.Pointer(&cRelName[0])),
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// (*C.char)(unsafe.Pointer(&cPath[0]))) == nil {
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// return nil, fmt.Errorf("can't find the shared library '%s'", libPath)
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// }
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// var cErr *C.char
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// h := C.openShareLib((*C.char)(unsafe.Pointer(&cPath[0])), &cErr)
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// if h == 0 {
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// // lock.Unlock()
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// return nil, fmt.Errorf("failed to open shared library: '%s' due to: '%s'", libPath, C.GoString(cErr))
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// }
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// initTask := C.shareLibLookup(h, C.CString("bar"), &cErr)
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// fmt.Printf(">> %p \n", initTask)
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// return &SharedLib{}, nil
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// }
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