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mirror of https://github.com/golang/go synced 2024-11-08 06:46:16 -07:00
go/src/cmd/dist
David Chase 729abfa35c [dev.ssa] cmd/compile: default compile+test with SSA
Some tests disabled, some bifurcated into _ssa and not,
with appropriate logging added to compiler.

"tests/live.go" in particular needs attention.

SSA-specific testing removed, since it's all SSA now.

Added "-run_skips" option to tests/run.go to simplify
checking whether a test still fails (or how it fails)
on a skipped platform.

The compiler now compiles with SSA by default.
If you don't want SSA, specify GOSSAHASH=n (or N) as
an environment variable.  Function names ending in "_ssa"
are always SSA-compiled.

GOSSAFUNC=fname retains its "SSA for fname, log to ssa.html"
GOSSAPKG=pkg only has an effect when GOSSAHASH=n
GOSSAHASH=10101 etc retains its name-hash-matching behavior
for purposes of debugging.

See #13068

Change-Id: I8217bfeb34173533eaeb391b5f6935483c7d6b43
Reviewed-on: https://go-review.googlesource.com/16299
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: David Chase <drchase@google.com>
2015-10-30 20:35:20 +00:00
..
build.go reflect, runtime, runtime/cgo: use ppc64 asm constant for fixed frame size 2015-10-18 23:15:26 +00:00
buildgo.go cmd/dist: one more file for CL 9152 2015-06-03 20:42:13 +00:00
buildruntime.go cmd/dist: fix mkzversion to produce gofmt'd output 2015-09-07 06:12:21 +00:00
buildtool.go [dev.ssa] Merge remote-tracking branch 'origin/master' into mergebranch 2015-07-30 12:30:48 -07:00
cpuid_386.s
cpuid_amd64.s
cpuid_default.s
deps.go cmd/dist: build packages in parallel, make code more Go-like 2015-09-29 16:30:15 +00:00
main.go
mkdeps.bash cmd/dist: build packages in parallel, make code more Go-like 2015-09-29 16:30:15 +00:00
README
sys_default.go
sys_windows.go
test.go [dev.ssa] cmd/compile: default compile+test with SSA 2015-10-30 20:35:20 +00:00
util_gc.go cmd/dist: re-enable GOARM auto-detection 2015-09-10 22:43:07 +00:00
util_gccgo.go cmd/dist: re-enable GOARM auto-detection 2015-09-10 22:43:07 +00:00
util.go cmd/dist: build packages in parallel, make code more Go-like 2015-09-29 16:30:15 +00:00
vfp_arm.s cmd/dist: re-enable GOARM auto-detection 2015-09-10 22:43:07 +00:00
vfp_default.s cmd/dist: re-enable GOARM auto-detection 2015-09-10 22:43:07 +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.