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59 lines
2.0 KiB
Go
59 lines
2.0 KiB
Go
// Copyright 2009 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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/*
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Gc is the generic label for the family of Go compilers
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that function as part of the (modified) Plan 9 tool chain. The C compiler
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documentation at
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http://plan9.bell-labs.com/sys/doc/comp.pdf (Tools overview)
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http://plan9.bell-labs.com/sys/doc/compiler.pdf (C compiler architecture)
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gives the overall design of the tool chain. Aside from a few adapted pieces,
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such as the optimizer, the Go compilers are wholly new programs.
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The compiler reads in a set of Go files, typically suffixed ".go". They
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must all be part of one package. The output is a single intermediate file
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representing the "binary assembly" of the compiled package, ready as input
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for the linker (6l, etc.).
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The generated files contain type information about the symbols exported by
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the package and about types used by symbols imported by the package from
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other packages. It is therefore not necessary when compiling client C of
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package P to read the files of P's dependencies, only the compiled output
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of P.
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Usage:
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6g [flags] file...
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The specified files must be Go source files and all part of the same package.
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Substitute 6g with 8g or 5g where appropriate.
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Flags:
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-o file
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output file, default file.6 for 6g, etc.
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-e
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normally the compiler quits after 10 errors; -e prints all errors
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-p path
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assume that path is the eventual import path for this code,
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and diagnose any attempt to import a package that depends on it.
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-L
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show entire file path when printing line numbers in errors
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-I dir1 -I dir2
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add dir1 and dir2 to the list of paths to check for imported packages
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-N
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disable optimizations
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-S
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write assembly language text to standard output
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-u
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disallow importing packages not marked as safe
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-V
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print the compiler version
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There are also a number of debugging flags; run the command with no arguments
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to get a usage message.
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*/
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package documentation
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