diff options
Diffstat (limited to 'src/runtime/runtime1.go')
| -rw-r--r-- | src/runtime/runtime1.go | 47 |
1 files changed, 44 insertions, 3 deletions
diff --git a/src/runtime/runtime1.go b/src/runtime/runtime1.go index 95bebac593..9089383904 100644 --- a/src/runtime/runtime1.go +++ b/src/runtime/runtime1.go @@ -477,10 +477,51 @@ func gomcache() *mcache { } //go:linkname reflect_typelinks reflect.typelinks -func reflect_typelinks() [][]*_type { - ret := [][]*_type{firstmoduledata.typelinks} +func reflect_typelinks() ([]unsafe.Pointer, [][]int32) { + sections := []unsafe.Pointer{unsafe.Pointer(firstmoduledata.types)} + ret := [][]int32{firstmoduledata.typelinks} for datap := firstmoduledata.next; datap != nil; datap = datap.next { + sections = append(sections, unsafe.Pointer(datap.types)) ret = append(ret, datap.typelinks) } - return ret + return sections, ret +} + +// reflect_resolveNameOff resolves a name offset from a base pointer. +//go:linkname reflect_resolveNameOff reflect.resolveNameOff +func reflect_resolveNameOff(ptrInModule unsafe.Pointer, off int32) unsafe.Pointer { + return unsafe.Pointer(resolveNameOff(ptrInModule, nameOff(off)).bytes) +} + +// reflect_resolveTypeOff resolves an *rtype offset from a base type. +//go:linkname reflect_resolveTypeOff reflect.resolveTypeOff +func reflect_resolveTypeOff(rtype unsafe.Pointer, off int32) unsafe.Pointer { + return unsafe.Pointer((*_type)(rtype).typeOff(typeOff(off))) +} + +// reflect_resolveTextOff resolves an function pointer offset from a base type. +//go:linkname reflect_resolveTextOff reflect.resolveTextOff +func reflect_resolveTextOff(rtype unsafe.Pointer, off int32) unsafe.Pointer { + return (*_type)(rtype).textOff(textOff(off)) + +} + +// reflect_addReflectOff adds a pointer to the reflection offset lookup map. +//go:linkname reflect_addReflectOff reflect.addReflectOff +func reflect_addReflectOff(ptr unsafe.Pointer) int32 { + lock(&reflectOffs.lock) + if reflectOffs.m == nil { + reflectOffs.m = make(map[int32]unsafe.Pointer) + reflectOffs.minv = make(map[unsafe.Pointer]int32) + reflectOffs.next = -1 + } + id, found := reflectOffs.minv[ptr] + if !found { + id = reflectOffs.next + reflectOffs.next-- // use negative offsets as IDs to aid debugging + reflectOffs.m[id] = ptr + reflectOffs.minv[ptr] = id + } + unlock(&reflectOffs.lock) + return id } |
