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cc158403d6
In addition to reflect.Value.Call, exported methods can be invoked by the Func value in the reflect.Method struct. This CL has the compiler track what functions get access to a legitimate reflect.Method struct by looking for interface calls to either of: Method(int) reflect.Method MethodByName(string) (reflect.Method, bool) This is a little overly conservative. If a user implements a type with one of these methods without using the underlying calls on reflect.Type, the linker will assume the worst and include all exported methods. But it's cheap. No change to any of the binary sizes reported in cl/20483. For #14740 Change-Id: Ie17786395d0453ce0384d8b240ecb043b7726137 Reviewed-on: https://go-review.googlesource.com/20489 Reviewed-by: Matthew Dempsky <mdempsky@google.com>
35 lines
1.3 KiB
C
35 lines
1.3 KiB
C
// Copyright 2013 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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// This file defines flags attached to various functions
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// and data objects. The compilers, assemblers, and linker must
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// all agree on these values.
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//
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// Keep in sync with src/cmd/internal/obj/textflag.go.
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// Don't profile the marked routine. This flag is deprecated.
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#define NOPROF 1
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// It is ok for the linker to get multiple of these symbols. It will
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// pick one of the duplicates to use.
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#define DUPOK 2
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// Don't insert stack check preamble.
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#define NOSPLIT 4
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// Put this data in a read-only section.
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#define RODATA 8
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// This data contains no pointers.
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#define NOPTR 16
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// This is a wrapper function and should not count as disabling 'recover'.
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#define WRAPPER 32
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// This function uses its incoming context register.
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#define NEEDCTXT 64
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// Allocate a word of thread local storage and store the offset from the
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// thread local base to the thread local storage in this variable.
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#define TLSBSS 256
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// Do not insert instructions to allocate a stack frame for this function.
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// Only valid on functions that declare a frame size of 0.
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// TODO(mwhudson): only implemented for ppc64x at present.
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#define NOFRAME 512
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// Function can call reflect.Type.Method or reflect.Type.MethodByName.
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#define REFLECTMETHOD = 1024
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