f8d9fa9e80
This upgrades all of libgo other than the runtime package to the Go 1.4 release. In Go 1.4 much of the runtime was rewritten into Go. Merging that code will take more time and will not change the API, so I'm putting it off for now. There are a few runtime changes anyhow, to accomodate other packages that rely on minor modifications to the runtime support. The compiler changes slightly to add a one-bit flag to each type descriptor kind that is stored directly in an interface, which for gccgo is currently only pointer types. Another one-bit flag (gcprog) is reserved because it is used by the gc compiler, but gccgo does not currently use it. There is another error check in the compiler since I ran across it during testing. gotools/: * Makefile.am (go_cmd_go_files): Sort entries. Add generate.go. * Makefile.in: Rebuild. From-SVN: r219627
119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
/* go-unsafe-pointer.c -- unsafe.Pointer type descriptor for Go.
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Copyright 2009 The Go Authors. All rights reserved.
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file. */
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#include <stddef.h>
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#include "runtime.h"
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#include "go-type.h"
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#include "mgc0.h"
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/* A pointer with a zero value. */
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static void *zero_pointer;
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/* This file provides the type descriptor for the unsafe.Pointer type.
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The unsafe package is defined by the compiler itself, which means
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that there is no package to compile to define the type
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descriptor. */
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extern const struct __go_type_descriptor unsafe_Pointer
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__asm__ (GOSYM_PREFIX "__go_tdn_unsafe.Pointer");
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extern const uintptr unsafe_Pointer_gc[]
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__asm__ (GOSYM_PREFIX "__go_tdn_unsafe.Pointer$gc");
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/* Used to determine the field alignment. */
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struct field_align
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{
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char c;
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void *p;
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};
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/* The reflection string. */
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#define REFLECTION "unsafe.Pointer"
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static const String reflection_string =
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{
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(const byte *) REFLECTION,
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sizeof REFLECTION - 1
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};
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const uintptr unsafe_Pointer_gc[] = {sizeof(void*), GC_APTR, 0, GC_END};
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const struct __go_type_descriptor unsafe_Pointer =
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{
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/* __code */
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GO_UNSAFE_POINTER | GO_DIRECT_IFACE,
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/* __align */
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__alignof (void *),
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/* __field_align */
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offsetof (struct field_align, p) - 1,
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/* __size */
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sizeof (void *),
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/* __hash */
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78501163U,
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/* __hashfn */
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__go_type_hash_identity,
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/* __equalfn */
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__go_type_equal_identity,
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/* __gc */
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unsafe_Pointer_gc,
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/* __reflection */
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&reflection_string,
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/* __uncommon */
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NULL,
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/* __pointer_to_this */
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NULL,
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/* __zero */
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&zero_pointer
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};
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/* We also need the type descriptor for the pointer to unsafe.Pointer,
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since any package which refers to that type descriptor will expect
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it to be defined elsewhere. */
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extern const struct __go_ptr_type pointer_unsafe_Pointer
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__asm__ (GOSYM_PREFIX "__go_td_pN14_unsafe.Pointer");
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/* The reflection string. */
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#define PREFLECTION "*unsafe.Pointer"
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static const String preflection_string =
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{
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(const byte *) PREFLECTION,
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sizeof PREFLECTION - 1,
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};
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const struct __go_ptr_type pointer_unsafe_Pointer =
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{
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/* __common */
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{
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/* __code */
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GO_PTR | GO_DIRECT_IFACE,
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/* __align */
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__alignof (void *),
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/* __field_align */
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offsetof (struct field_align, p) - 1,
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/* __size */
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sizeof (void *),
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/* __hash */
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1256018616U,
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/* __hashfn */
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__go_type_hash_identity,
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/* __equalfn */
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__go_type_equal_identity,
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/* __gc */
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unsafe_Pointer_gc,
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/* __reflection */
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&preflection_string,
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/* __uncommon */
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NULL,
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/* __pointer_to_this */
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NULL,
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/* __zero */
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&zero_pointer
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},
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/* __element_type */
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&unsafe_Pointer
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};
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