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Commit Graph

23 Commits

Author SHA1 Message Date
Rob Pike
0d612a8572 doc/go1.3.html: go test always builds
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/89370043
2014-04-18 11:00:38 -07:00
David du Colombier
ba59375750 doc/go1.3.html: new package debug/plan9obj
LGTM=r
R=r
CC=golang-codereviews, rsc
https://golang.org/cl/86180046
2014-04-18 10:50:06 +02:00
Emil Hessman
3af8d6fa4a doc/go1.3.html: fix id anchor for FreeBSD
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/88000047
2014-04-16 12:15:39 -07:00
Rob Pike
59f6c81f98 doc/go1.3.html: document the state of FreeBSD
Update #7056

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/88070045
2014-04-16 10:40:41 -07:00
Russ Cox
ade6bc68b0 runtime: crash when func main calls Goexit and all other goroutines exit
This has typically crashed in the past, although usually with
an 'all goroutines are asleep - deadlock!' message that shows
no goroutines (because there aren't any).

Previous discussion at:
https://groups.google.com/d/msg/golang-nuts/uCT_7WxxopQ/BoSBlLFzUTkJ
https://groups.google.com/d/msg/golang-dev/KUojayEr20I/u4fp_Ej5PdUJ
http://golang.org/issue/7711

There is general agreement that runtime.Goexit terminates the
main goroutine, so that main cannot return, so the program does
not exit.

The interpretation that all other goroutines exiting causes an
exit(0) is relatively new and was not part of those discussions.
That is what this CL changes.

Thankfully, even though the exit(0) has been there for a while,
some other accounting bugs made it very difficult to trigger,
so it is reasonable to replace. In particular, see golang.org/issue/7711#c10
for an examination of the behavior across past releases.

Fixes #7711.

LGTM=iant, r
R=golang-codereviews, iant, dvyukov, r
CC=golang-codereviews
https://golang.org/cl/88210044
2014-04-16 13:12:18 -04:00
Russ Cox
e97b3ab1f9 build: remove tmp dir names from objects, support GOROOT_FINAL again
If we compile a generated file stored in a temporary
directory - let's say /tmp/12345/work/x.c - then by default
6c stores the full path and then the pcln table in the
final binary includes the full path. This makes repeated builds
(using different temporary directories) produce different
binaries, even if the inputs are the same.

In the old 'go tool pack', the P flag specified a prefix to remove
from all stored paths (if present), and cmd/go invoked
'go tool pack grcP $WORK' to remove references to the
temporary work directory.

We've changed the build to avoid pack as much as possible,
under the theory that instead of making pack convert from
.6 to .a, the tools should just write the .a directly and save a
round of I/O.

Instead of going back to invoking pack always, define a common
flag -trimpath in the assemblers, C compilers, and Go compilers,
implemented in liblink, and arrange for cmd/go to use the flag.
Then the object files being written out have the shortened paths
from the start.

While we are here, reimplement pcln support for GOROOT_FINAL.
A build in /tmp/go uses GOROOT=/tmp/go, but if GOROOT_FINAL=/usr/local/go
is set, then a source file named /tmp/go/x.go is recorded instead as
/usr/local/go/x.go. We use this so that we can prepare distributions
to be installed in /usr/local/go without actually working in that
directory. The conversion to liblink deleted all the old file name
handling code, including the GOROOT_FINAL translation.
Bring the GOROOT_FINAL translation back.

Before this CL, using GOROOT_FINAL=/goroot make.bash:

        g% strings $(which go) | grep -c $TMPDIR
        6
        g% strings $(which go) | grep -c $GOROOT
        793
        g%

After this CL:

        g% strings $(which go) | grep -c $TMPDIR
        0
        g% strings $(which go) | grep -c $GOROOT
        0
        g%

(The references to $TMPDIR tend to be cgo-generated source files.)

Adding the -trimpath flag to the assemblers required converting
them to the new Go-semantics flag parser. The text in go1.3.html
is copied and adjusted from go1.1.html, which is when we applied
that conversion to the compilers and linkers.

Fixes #6989.

LGTM=iant
R=r, iant
CC=golang-codereviews
https://golang.org/cl/88300045
2014-04-15 20:46:46 -04:00
Brad Fitzpatrick
632e641fd2 doc: simplify a go1.3 change description
LGTM=r
R=rsc, r
CC=golang-codereviews
https://golang.org/cl/87750043
2014-04-14 16:28:52 -07:00
Brad Fitzpatrick
071a0f4d18 doc: add go1.3 note about the http Transport closing Request.Body
LGTM=rsc
R=rsc, r
CC=golang-codereviews
https://golang.org/cl/87620043
2014-04-14 10:19:10 -07:00
Rob Pike
e9ad3bf0ff doc/go1.3.html: windows NewCallbackCDecl
LGTM=alex.brainman
R=alex.brainman
CC=golang-codereviews
https://golang.org/cl/87250043
2014-04-12 14:56:17 +10:00
Rob Pike
1d879fe774 doc/go1.3.html: fix spelling mistakes
Keep those builders busy.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/85710046
2014-04-11 08:52:16 +10:00
Brad Fitzpatrick
1e68e6ae21 doc: finish net/http notes in go1.3.html
LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/86580043
2014-04-10 15:09:59 -07:00
Rob Pike
b6684b3104 doc/go1.3.html: minor changes: crypto, net
All that's left is net/http and the stuff I need help describing: FreeBSD and Windows.

LGTM=adg
R=golang-codereviews, adg
CC=golang-codereviews
https://golang.org/cl/86320043
2014-04-10 14:17:48 +10:00
Russ Cox
c9133e32f6 doc: tweak Solaris wording
Suggested in comments on CL 85740043.

LGTM=aram
R=golang-codereviews, aram
CC=dave, golang-codereviews, r
https://golang.org/cl/85990044
2014-04-09 10:08:35 -04:00
Rob Pike
56294f4adf doc/go1.3.html: go command, major library changes
LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/85840043
2014-04-09 15:20:00 +10:00
Rob Pike
b69238bfbe doc/go1.3.html: gc precision, nacl, solaris
LGTM=rsc
R=rsc, bradfitz
CC=golang-codereviews
https://golang.org/cl/85740043
2014-04-09 12:47:35 +10:00
Brad Fitzpatrick
4f193cdc5d doc: add a couple net/http go1.3 items
LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/85760043
2014-04-08 19:46:33 -07:00
Rob Pike
96775a3688 doc/go1.3.html: gccgo status
LGTM=iant
R=iant
CC=golang-codereviews
https://golang.org/cl/85720043
2014-04-09 09:45:39 +10:00
Rob Pike
c5f14c55c1 doc/go1.3.html: linker, go command, miscellany
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/85660043
2014-04-09 08:19:35 +10:00
Rob Pike
969dc7626b doc/go1.3.html: Performance, plus some library details
LGTM=dvyukov, iant, rsc
R=golang-codereviews, dvyukov, iant, rsc
CC=golang-codereviews
https://golang.org/cl/85250043
2014-04-09 07:12:20 +10:00
Rob Pike
78025fb220 doc/go1.3.html: drop support for windows 2000
LGTM=bradfitz, alex.brainman
R=golang-codereviews, bradfitz, alex.brainman
CC=golang-codereviews
https://golang.org/cl/85190043
2014-04-08 14:07:17 +10:00
Rob Pike
610f395189 doc/go1.3.html: contiguous stacks
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/81650043
2014-03-28 12:55:37 +11:00
Rob Pike
a4380927eb doc/go1.3.html: explain the change to the memory model
LGTM=iant, rsc
R=rsc, iant, mtj
CC=golang-codereviews
https://golang.org/cl/80260044
2014-03-27 11:45:51 +11:00
Rob Pike
09e1da3c2c doc/go1.3.html: new release document outline
Almost all TODOS, but the structure is there and it has the details
from go1.3.txt, which is hereby deleted.

LGTM=dominik.honnef, adg
R=golang-codereviews, dominik.honnef, adg
CC=golang-codereviews
https://golang.org/cl/80240044
2014-03-26 13:56:16 +11:00