diff options
Diffstat (limited to 'vendor/golang.org/x/sys/windows/dll_windows.go')
| -rw-r--r-- | vendor/golang.org/x/sys/windows/dll_windows.go | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/vendor/golang.org/x/sys/windows/dll_windows.go b/vendor/golang.org/x/sys/windows/dll_windows.go index ba67658db..d77711341 100644 --- a/vendor/golang.org/x/sys/windows/dll_windows.go +++ b/vendor/golang.org/x/sys/windows/dll_windows.go @@ -11,6 +11,18 @@ import ( "unsafe" ) +// We need to use LoadLibrary and GetProcAddress from the Go runtime, because +// the these symbols are loaded by the system linker and are required to +// dynamically load additional symbols. Note that in the Go runtime, these +// return syscall.Handle and syscall.Errno, but these are the same, in fact, +// as windows.Handle and windows.Errno, and we intend to keep these the same. + +//go:linkname syscall_loadlibrary syscall.loadlibrary +func syscall_loadlibrary(filename *uint16) (handle Handle, err Errno) + +//go:linkname syscall_getprocaddress syscall.getprocaddress +func syscall_getprocaddress(handle Handle, procname *uint8) (proc uintptr, err Errno) + // DLLError describes reasons for DLL load failures. type DLLError struct { Err error @@ -20,10 +32,6 @@ type DLLError struct { func (e *DLLError) Error() string { return e.Msg } -// Implemented in runtime/syscall_windows.goc; we provide jumps to them in our assembly file. -func loadlibrary(filename *uint16) (handle uintptr, err syscall.Errno) -func getprocaddress(handle uintptr, procname *uint8) (proc uintptr, err syscall.Errno) - // A DLL implements access to a single DLL. type DLL struct { Name string @@ -40,7 +48,7 @@ func LoadDLL(name string) (dll *DLL, err error) { if err != nil { return nil, err } - h, e := loadlibrary(namep) + h, e := syscall_loadlibrary(namep) if e != 0 { return nil, &DLLError{ Err: e, @@ -50,7 +58,7 @@ func LoadDLL(name string) (dll *DLL, err error) { } d := &DLL{ Name: name, - Handle: Handle(h), + Handle: h, } return d, nil } @@ -71,7 +79,7 @@ func (d *DLL) FindProc(name string) (proc *Proc, err error) { if err != nil { return nil, err } - a, e := getprocaddress(uintptr(d.Handle), namep) + a, e := syscall_getprocaddress(d.Handle, namep) if e != 0 { return nil, &DLLError{ Err: e, |