funcpc.go

     1  // Copyright 2023 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build !gccgo
     6  
     7  package abi
     8  
     9  // FuncPC* intrinsics.
    10  //
    11  // CAREFUL: In programs with plugins, FuncPC* can return different values
    12  // for the same function (because there are actually multiple copies of
    13  // the same function in the address space). To be safe, don't use the
    14  // results of this function in any == expression. It is only safe to
    15  // use the result as an address at which to start executing code.
    16  
    17  // FuncPCABI0 returns the entry PC of the function f, which must be a
    18  // direct reference of a function defined as ABI0. Otherwise it is a
    19  // compile-time error.
    20  //
    21  // Implemented as a compile intrinsic.
    22  func FuncPCABI0(f interface{}) uintptr
    23  
    24  // FuncPCABIInternal returns the entry PC of the function f. If f is a
    25  // direct reference of a function, it must be defined as ABIInternal.
    26  // Otherwise it is a compile-time error. If f is not a direct reference
    27  // of a defined function, it assumes that f is a func value. Otherwise
    28  // the behavior is undefined.
    29  //
    30  // Implemented as a compile intrinsic.
    31  func FuncPCABIInternal(f interface{}) uintptr
    32
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