github.com/zxy12/go_duplicate_1_12@v0.0.0-20200217043740-b1636fc0368b/src/cmd/internal/objabi/funcdata.go (about)

     1  // Copyright 2013 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  package objabi
     6  
     7  // This file defines the IDs for PCDATA and FUNCDATA instructions
     8  // in Go binaries.
     9  //
    10  // These must agree with ../../../runtime/funcdata.h and
    11  // ../../../runtime/symtab.go.
    12  
    13  const (
    14  	PCDATA_StackMapIndex       = 0
    15  	PCDATA_InlTreeIndex        = 1
    16  	PCDATA_RegMapIndex         = 2
    17  	FUNCDATA_ArgsPointerMaps   = 0
    18  	FUNCDATA_LocalsPointerMaps = 1
    19  	FUNCDATA_InlTree           = 2
    20  	FUNCDATA_RegPointerMaps    = 3
    21  	FUNCDATA_StackObjects      = 4
    22  
    23  	// ArgsSizeUnknown is set in Func.argsize to mark all functions
    24  	// whose argument size is unknown (C vararg functions, and
    25  	// assembly code without an explicit specification).
    26  	// This value is generated by the compiler, assembler, or linker.
    27  	ArgsSizeUnknown = -0x80000000
    28  )