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go/src/cmd/dist
Russ Cox 3974357ecd cmd/dist: one more file for CL 9152
This one didn't get written out.

Change-Id: Iee173861fb4dc7cafa64ba5f601f4664b6e8da4e
Reviewed-on: https://go-review.googlesource.com/10681
Reviewed-by: Russ Cox <rsc@golang.org>
2015-06-03 20:42:13 +00:00
..
build.go cmd/dist: do not rewrite files that already have the correct content 2015-06-03 20:39:35 +00:00
buildgo.go cmd/dist: one more file for CL 9152 2015-06-03 20:42:13 +00:00
buildruntime.go cmd/dist: do not rewrite files that already have the correct content 2015-06-03 20:39:35 +00:00
buildtool.go cmd/dist: do not rewrite files that already have the correct content 2015-06-03 20:39:35 +00:00
cpuid_386.s cmd/dist: fix bootstrapping with gccgo on 386 2015-04-15 16:58:19 +00:00
cpuid_amd64.s cmd/dist: use gccgo as bootstrap compiler 2015-04-13 19:10:16 +00:00
cpuid_default.s cmd/dist: use gccgo as bootstrap compiler 2015-04-13 19:10:16 +00:00
main.go build: convert run.bash, run.bat, and run.rc into a Go program 2015-03-03 23:22:11 +00:00
README build: require old Go to build new Go (and convert cmd/dist to Go) 2015-01-10 19:16:00 +00:00
sys_default.go build: bootstrap on Plan 9 2015-01-13 07:50:32 +00:00
sys_windows.go build: update Windows make.bat for Go-based dist 2015-01-12 23:01:37 +00:00
test.go cmd/dist: enable extlink test on linux/arm64 2015-06-03 03:57:08 +00:00
util_gc.go cmd/dist: use gccgo as bootstrap compiler 2015-04-13 19:10:16 +00:00
util_gccgo.go cmd/dist: detect sse2 even with gccgo 2015-04-13 23:27:35 +00:00
util.go cmd/dist: do not rewrite files that already have the correct content 2015-06-03 20:39:35 +00:00

This program, dist, is the bootstrapping tool for the Go distribution.

As of Go 1.5, dist and other parts of the compiler toolchain are written
in Go, making bootstrapping a little more involved than in the past.
The approach is to build the current release of Go with an earlier one.

The process to install Go 1.x, for x ≥ 5, is:

1. Build cmd/dist with Go 1.4.
2. Using dist, build Go 1.x compiler toolchain with Go 1.4.
3. Using dist, rebuild Go 1.x compiler toolchain with itself.
4. Using dist, build Go 1.x cmd/go (as go_bootstrap) with Go 1.x compiler toolchain.
5. Using go_bootstrap, build the remaining Go 1.x standard library and commands.

NOTE: During the transition from the old C-based toolchain to the Go-based one,
step 2 also builds the parts of the toolchain written in C, and step 3 does not
recompile those.

Because of backward compatibility, although the steps above say Go 1.4,
in practice any release ≥ Go 1.4 but < Go 1.x will work as the bootstrap base.

See golang.org/s/go15bootstrap for more details.

Compared to Go 1.4 and earlier, dist will also take over much of what used to
be done by make.bash/make.bat/make.rc and all of what used to be done by
run.bash/run.bat/run.rc, because it is nicer to implement that logic in Go
than in three different scripting languages simultaneously.