github.com/FenixAra/go@v0.0.0-20170127160404-96ea0918e670/src/cmd/asm/doc.go (about)

     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 value
    23  		predefined symbol with optional simple value -D=identifier=value;
    24  		can be set multiple times
    25  	-I value
    26  		include directory; can be set multiple times
    27  	-S	print assembly and machine code
    28  	-debug
    29  		dump instructions as they are parsed
    30  	-dynlink
    31  		support references to Go symbols defined in other shared libraries
    32  	-o string
    33  		output file; default foo.o for /a/b/c/foo.s
    34  	-shared
    35  		generate code that can be linked into a shared library
    36  	-trimpath string
    37  		remove prefix from recorded source file paths
    38  
    39  Input language:
    40  
    41  The assembler uses mostly the same syntax for all architectures,
    42  the main variation having to do with addressing modes. Input is
    43  run through a simplified C preprocessor that implements #include,
    44  #define, #ifdef/endif, but not #if or ##.
    45  
    46  For more information, see https://golang.org/doc/asm.
    47  */
    48  package main