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Source file src/cmd/asm/doc.go

Documentation: cmd/asm

     1  // Copyright 2015 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  /*
     6  Asm, typically invoked as ``go tool asm'', assembles the source file into an object
     7  file named for the basename of the argument source file with a .o suffix. The
     8  object file can then be combined with other objects into a package archive.
     9  
    10  Command Line
    11  
    12  Usage:
    13  
    14  	go tool asm [flags] file
    15  
    16  The specified file must be a Go assembly file.
    17  The same assembler is used for all target operating systems and architectures.
    18  The GOOS and GOARCH environment variables set the desired target.
    19  
    20  Flags:
    21  
    22  	-D name[=value]
    23  		Predefine symbol name with an optional simple value.
    24  		Can be repeated to define multiple symbols.
    25  	-I dir1 -I dir2
    26  		Search for #include files in dir1, dir2, etc,
    27  		after consulting $GOROOT/pkg/$GOOS_$GOARCH.
    28  	-S
    29  		Print assembly and machine code.
    30  	-V
    31  		Print assembler version and exit.
    32  	-debug
    33  		Dump instructions as they are parsed.
    34  	-dynlink
    35  		Support references to Go symbols defined in other shared libraries.
    36  	-o file
    37  		Write output to file. The default is foo.o for /a/b/c/foo.s.
    38  	-shared
    39  		Generate code that can be linked into a shared library.
    40  	-trimpath prefix
    41  		Remove prefix from recorded source file paths.
    42  Input language:
    43  
    44  The assembler uses mostly the same syntax for all architectures,
    45  the main variation having to do with addressing modes. Input is
    46  run through a simplified C preprocessor that implements #include,
    47  #define, #ifdef/endif, but not #if or ##.
    48  
    49  For more information, see https://golang.org/doc/asm.
    50  */
    51  package main
    52  

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