diff options
Diffstat (limited to 'tools/go_marshal')
5 files changed, 29 insertions, 39 deletions
diff --git a/tools/go_marshal/defs.bzl b/tools/go_marshal/defs.bzl index e23901815..9f620cb76 100644 --- a/tools/go_marshal/defs.bzl +++ b/tools/go_marshal/defs.bzl @@ -57,7 +57,6 @@ go_marshal = rule( # marshal_deps are the dependencies requied by generated code. marshal_deps = [ "//pkg/gohacks", - "//pkg/safecopy", "//pkg/hostarch", "//pkg/marshal", ] diff --git a/tools/go_marshal/gomarshal/generator.go b/tools/go_marshal/gomarshal/generator.go index 0e2d752cb..00961c90d 100644 --- a/tools/go_marshal/gomarshal/generator.go +++ b/tools/go_marshal/gomarshal/generator.go @@ -112,10 +112,8 @@ func NewGenerator(srcs []string, out, outTest, outTestUnconditional, pkg string, g.imports.add("runtime") g.imports.add("unsafe") g.imports.add("gvisor.dev/gvisor/pkg/gohacks") - g.imports.add("gvisor.dev/gvisor/pkg/safecopy") g.imports.add("gvisor.dev/gvisor/pkg/hostarch") g.imports.add("gvisor.dev/gvisor/pkg/marshal") - return &g, nil } diff --git a/tools/go_marshal/gomarshal/generator_interfaces_array_newtype.go b/tools/go_marshal/gomarshal/generator_interfaces_array_newtype.go index 32afece2e..e8ce6e366 100644 --- a/tools/go_marshal/gomarshal/generator_interfaces_array_newtype.go +++ b/tools/go_marshal/gomarshal/generator_interfaces_array_newtype.go @@ -33,13 +33,13 @@ func (g *interfaceGenerator) validateArrayNewtype(n *ast.Ident, a *ast.ArrayType } func (g *interfaceGenerator) emitMarshallableForArrayNewtype(n *ast.Ident, a *ast.ArrayType, elt *ast.Ident) { + g.recordUsedImport("gohacks") + g.recordUsedImport("hostarch") g.recordUsedImport("io") g.recordUsedImport("marshal") g.recordUsedImport("reflect") g.recordUsedImport("runtime") - g.recordUsedImport("safecopy") g.recordUsedImport("unsafe") - g.recordUsedImport("hostarch") lenExpr := g.arrayLenExpr(a) @@ -89,14 +89,14 @@ func (g *interfaceGenerator) emitMarshallableForArrayNewtype(n *ast.Ident, a *as g.emit("// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.\n") g.emit("func (%s *%s) MarshalUnsafe(dst []byte) {\n", g.r, g.typeName()) g.inIndent(func() { - g.emit("safecopy.CopyIn(dst, unsafe.Pointer(%s))\n", g.r) + g.emit("gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(&%s[0]), uintptr(len(dst)))\n", g.r) }) g.emit("}\n\n") g.emit("// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.\n") g.emit("func (%s *%s) UnmarshalUnsafe(src []byte) {\n", g.r, g.typeName()) g.inIndent(func() { - g.emit("safecopy.CopyOut(unsafe.Pointer(%s), src)\n", g.r) + g.emit("gohacks.Memmove(unsafe.Pointer(%s), unsafe.Pointer(&src[0]), uintptr(len(src)))\n", g.r) }) g.emit("}\n\n") diff --git a/tools/go_marshal/gomarshal/generator_interfaces_primitive_newtype.go b/tools/go_marshal/gomarshal/generator_interfaces_primitive_newtype.go index 05f0e0db4..19aa5994a 100644 --- a/tools/go_marshal/gomarshal/generator_interfaces_primitive_newtype.go +++ b/tools/go_marshal/gomarshal/generator_interfaces_primitive_newtype.go @@ -95,13 +95,13 @@ func (g *interfaceGenerator) validatePrimitiveNewtype(t *ast.Ident) { // newtypes are always packed, so we can omit the various fallbacks required for // non-packed structs. func (g *interfaceGenerator) emitMarshallableForPrimitiveNewtype(nt *ast.Ident) { + g.recordUsedImport("gohacks") + g.recordUsedImport("hostarch") g.recordUsedImport("io") g.recordUsedImport("marshal") g.recordUsedImport("reflect") g.recordUsedImport("runtime") - g.recordUsedImport("safecopy") g.recordUsedImport("unsafe") - g.recordUsedImport("hostarch") g.emit("// SizeBytes implements marshal.Marshallable.SizeBytes.\n") g.emit("//go:nosplit\n") @@ -141,14 +141,14 @@ func (g *interfaceGenerator) emitMarshallableForPrimitiveNewtype(nt *ast.Ident) g.emit("// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.\n") g.emit("func (%s *%s) MarshalUnsafe(dst []byte) {\n", g.r, g.typeName()) g.inIndent(func() { - g.emit("safecopy.CopyIn(dst, unsafe.Pointer(%s))\n", g.r) + g.emit("gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(%s), uintptr(len(dst)))\n", g.r) }) g.emit("}\n\n") g.emit("// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.\n") g.emit("func (%s *%s) UnmarshalUnsafe(src []byte) {\n", g.r, g.typeName()) g.inIndent(func() { - g.emit("safecopy.CopyOut(unsafe.Pointer(%s), src)\n", g.r) + g.emit("gohacks.Memmove(unsafe.Pointer(%s), unsafe.Pointer(&src[0]), uintptr(len(src)))\n", g.r) }) g.emit("}\n\n") @@ -260,11 +260,9 @@ func (g *interfaceGenerator) emitMarshallableSliceForPrimitiveNewtype(nt *ast.Id g.emit("}\n") g.emit("size := (*%s)(nil).SizeBytes()\n\n", g.typeName()) - g.emitNoEscapeSliceDataPointer("&src", "val") - - g.emit("length, err := safecopy.CopyIn(dst[:(size*count)], val)\n") - g.emitKeepAlive("src") - g.emit("return length, err\n") + g.emit("dst = dst[:size*count]\n") + g.emit("gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(&src[0]), uintptr(len(dst)))\n") + g.emit("return size*count, nil\n") }) g.emit("}\n\n") @@ -279,11 +277,9 @@ func (g *interfaceGenerator) emitMarshallableSliceForPrimitiveNewtype(nt *ast.Id g.emit("}\n") g.emit("size := (*%s)(nil).SizeBytes()\n\n", g.typeName()) - g.emitNoEscapeSliceDataPointer("&dst", "val") - - g.emit("length, err := safecopy.CopyOut(val, src[:(size*count)])\n") - g.emitKeepAlive("dst") - g.emit("return length, err\n") + g.emit("src = src[:(size*count)]\n") + g.emit("gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(&src[0]), uintptr(len(src)))\n") + g.emit("return size*count, nil\n") }) g.emit("}\n\n") } diff --git a/tools/go_marshal/gomarshal/generator_interfaces_struct.go b/tools/go_marshal/gomarshal/generator_interfaces_struct.go index 72df1ab64..087c88b54 100644 --- a/tools/go_marshal/gomarshal/generator_interfaces_struct.go +++ b/tools/go_marshal/gomarshal/generator_interfaces_struct.go @@ -270,18 +270,18 @@ func (g *interfaceGenerator) emitMarshallableForStruct(st *ast.StructType) { g.emit("%s.MarshalBytes(dst)\n", g.r) } if thisPacked { - g.recordUsedImport("safecopy") + g.recordUsedImport("gohacks") g.recordUsedImport("unsafe") if cond, ok := g.areFieldsPackedExpression(); ok { g.emit("if %s {\n", cond) g.inIndent(func() { - g.emit("safecopy.CopyIn(dst, unsafe.Pointer(%s))\n", g.r) + g.emit("gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(%s), uintptr(len(dst)))\n", g.r) }) g.emit("} else {\n") g.inIndent(fallback) g.emit("}\n") } else { - g.emit("safecopy.CopyIn(dst, unsafe.Pointer(%s))\n", g.r) + g.emit("gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(%s), uintptr(len(dst)))\n", g.r) } } else { fallback() @@ -297,25 +297,23 @@ func (g *interfaceGenerator) emitMarshallableForStruct(st *ast.StructType) { g.emit("%s.UnmarshalBytes(src)\n", g.r) } if thisPacked { - g.recordUsedImport("safecopy") - g.recordUsedImport("unsafe") + g.recordUsedImport("gohacks") if cond, ok := g.areFieldsPackedExpression(); ok { g.emit("if %s {\n", cond) g.inIndent(func() { - g.emit("safecopy.CopyOut(unsafe.Pointer(%s), src)\n", g.r) + g.emit("gohacks.Memmove(unsafe.Pointer(%s), unsafe.Pointer(&src[0]), uintptr(len(src)))\n", g.r) }) g.emit("} else {\n") g.inIndent(fallback) g.emit("}\n") } else { - g.emit("safecopy.CopyOut(unsafe.Pointer(%s), src)\n", g.r) + g.emit("gohacks.Memmove(unsafe.Pointer(%s), unsafe.Pointer(&src[0]), uintptr(len(src)))\n", g.r) } } else { fallback() } }) g.emit("}\n\n") - g.emit("// CopyOutN implements marshal.Marshallable.CopyOutN.\n") g.emit("//go:nosplit\n") g.recordUsedImport("marshal") @@ -561,16 +559,15 @@ func (g *interfaceGenerator) emitMarshallableSliceForStruct(st *ast.StructType, g.recordUsedImport("reflect") g.recordUsedImport("runtime") g.recordUsedImport("unsafe") + g.recordUsedImport("gohacks") if _, ok := g.areFieldsPackedExpression(); ok { g.emit("if !src[0].Packed() {\n") g.inIndent(fallback) g.emit("}\n\n") } - g.emitNoEscapeSliceDataPointer("&src", "val") - - g.emit("length, err := safecopy.CopyIn(dst[:(size*count)], val)\n") - g.emitKeepAlive("src") - g.emit("return length, err\n") + g.emit("dst = dst[:size*count]\n") + g.emit("gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(&src[0]), uintptr(len(dst)))\n") + g.emit("return size * count, nil\n") } else { fallback() } @@ -598,19 +595,19 @@ func (g *interfaceGenerator) emitMarshallableSliceForStruct(st *ast.StructType, g.emit("return size * count, nil\n") } if thisPacked { + g.recordUsedImport("gohacks") g.recordUsedImport("reflect") g.recordUsedImport("runtime") - g.recordUsedImport("unsafe") if _, ok := g.areFieldsPackedExpression(); ok { g.emit("if !dst[0].Packed() {\n") g.inIndent(fallback) g.emit("}\n\n") } - g.emitNoEscapeSliceDataPointer("&dst", "val") - g.emit("length, err := safecopy.CopyOut(val, src[:(size*count)])\n") - g.emitKeepAlive("dst") - g.emit("return length, err\n") + g.emit("src = src[:(size*count)]\n") + g.emit("gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(&src[0]), uintptr(len(src)))\n") + + g.emit("return count*size, nil\n") } else { fallback() } |