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cgo: mangle identifier names

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This mangles CGo identifier names to something like "_Cgo_foo" instead
of using literal identifiers like "C.foo". This works around
https://github.com/golang/go/issues/71777.

I don't like this solution, but I hope we'll find a better solution in
the future. In that case we can revert this commit.
This commit is contained in:
Ayke van Laethem
2025-02-16 14:29:32 +01:00
committed by Ron Evans
parent a6cd072fa1
commit ea53ace270
9 changed files with 367 additions and 383 deletions
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cgo/testdata/basic.out.go
Vendored
+31 -31
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@@ -5,50 +5,50 @@ import "unsafe"
var _ unsafe.Pointer
//go:linkname C.CString runtime.cgo_CString
func C.CString(string) *C.char
//go:linkname _Cgo_CString runtime.cgo_CString
func _Cgo_CString(string) *_Cgo_char
//go:linkname C.GoString runtime.cgo_GoString
func C.GoString(*C.char) string
//go:linkname _Cgo_GoString runtime.cgo_GoString
func _Cgo_GoString(*_Cgo_char) string
//go:linkname C.__GoStringN runtime.cgo_GoStringN
func C.__GoStringN(*C.char, uintptr) string
//go:linkname _Cgo___GoStringN runtime.cgo_GoStringN
func _Cgo___GoStringN(*_Cgo_char, uintptr) string
func C.GoStringN(cstr *C.char, length C.int) string {
return C.__GoStringN(cstr, uintptr(length))
func _Cgo_GoStringN(cstr *_Cgo_char, length _Cgo_int) string {
return _Cgo___GoStringN(cstr, uintptr(length))
}
//go:linkname C.__GoBytes runtime.cgo_GoBytes
func C.__GoBytes(unsafe.Pointer, uintptr) []byte
//go:linkname _Cgo___GoBytes runtime.cgo_GoBytes
func _Cgo___GoBytes(unsafe.Pointer, uintptr) []byte
func C.GoBytes(ptr unsafe.Pointer, length C.int) []byte {
return C.__GoBytes(ptr, uintptr(length))
func _Cgo_GoBytes(ptr unsafe.Pointer, length _Cgo_int) []byte {
return _Cgo___GoBytes(ptr, uintptr(length))
}
//go:linkname C.__CBytes runtime.cgo_CBytes
func C.__CBytes([]byte) unsafe.Pointer
//go:linkname _Cgo___CBytes runtime.cgo_CBytes
func _Cgo___CBytes([]byte) unsafe.Pointer
func C.CBytes(b []byte) unsafe.Pointer {
return C.__CBytes(b)
func _Cgo_CBytes(b []byte) unsafe.Pointer {
return _Cgo___CBytes(b)
}
//go:linkname C.__get_errno_num runtime.cgo_errno
func C.__get_errno_num() uintptr
//go:linkname _Cgo___get_errno_num runtime.cgo_errno
func _Cgo___get_errno_num() uintptr
func C.__get_errno() error {
return syscall.Errno(C.__get_errno_num())
func _Cgo___get_errno() error {
return syscall.Errno(_Cgo___get_errno_num())
}
type (
C.char uint8
C.schar int8
C.uchar uint8
C.short int16
C.ushort uint16
C.int int32
C.uint uint32
C.long int32
C.ulong uint32
C.longlong int64
C.ulonglong uint64
_Cgo_char uint8
_Cgo_schar int8
_Cgo_uchar uint8
_Cgo_short int16
_Cgo_ushort uint16
_Cgo_int int32
_Cgo_uint uint32
_Cgo_long int32
_Cgo_ulong uint32
_Cgo_longlong int64
_Cgo_ulonglong uint64
)