««« CL 18870043 / eca0ca43a863
os: do not return Lstat errors from Readdir

This CL restores the Go 1.1.2 semantics for os.File's Readdir method.

The code in Go 1.1.2 was rewritten mainly because it looked buggy.
This new version attempts to be clearer but still provide the 1.1.2 results.

The important diff is not this CL's version against tip but this CL's version
against Go 1.1.2.

Go 1.1.2:

        names, err := f.Readdirnames(n)
        fi = make([]FileInfo, len(names))
        for i, filename := range names {
                fip, err := Lstat(dirname + filename)
                if err == nil {
                        fi[i] = fip
                } else {
                        fi[i] = &fileStat{name: filename}
                }
        }
        return fi, err

This CL:

        names, err := f.Readdirnames(n)
        fi = make([]FileInfo, len(names))
        for i, filename := range names {
                fip, lerr := lstat(dirname + filename)
                if lerr != nil {
                        fi[i] = &fileStat{name: filename}
                        continue
                }
                fi[i] = fip
        }
        return fi, err

The changes from Go 1.1.2 are stylistic, not semantic:
1. Use lstat instead of Lstat, for testing (done before this CL).
2. Make error handling in loop body look more like an error case.
3. Use separate error variable name in loop body, to be clear
   we are not trying to influence the final return result.

Fixes #6656.
Fixes #6680.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/18870043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20110045

««« CL 19160043 / 104d56b5d664
cmd/gc: silence clang warning

This code is only built when you run 'make' in cmd/gc,
not in all.bash.

R=golang-dev, jsing, iant
CC=golang-dev
https://golang.org/cl/19160043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20290046

««« CL 18230043 / f2b59b5163b0
misc/emacs: support godef-jump on import statements

The newest version of godef supports jumping to a package's source
directory if point is on an import statement.

R=adonovan
CC=golang-dev
https://golang.org/cl/18230043

»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20620043

««« CL 18460043 / 08e6655618f5
debug/dwarf: add DWARF 4 form constants

Some versions of clang generate DWARF 4-format attributes
even when using -gdwarf-2. We don't care much about the
values, but we do need to be able to parse past them.

This fixes a bug in Go 1.2 rc2 reported via private mail using
a near-tip version of clang.

R=golang-dev, iant, dvyukov
CC=golang-dev
https://golang.org/cl/18460043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20470045

««« CL 18080045 / 5ffdb9cc0bfe
doc: update front page summary text

R=rsc
CC=golang-dev
https://golang.org/cl/18080045
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20540044

««« CL 18850043 / 5ef4bf9eb256
cmd/cgo: stop using -fno-eliminate-unused-debug-types

This flag was added in January 2010, in CL 181102, to fix issue 497.
(Numbers were just shorter back then.) The fix was for OS X machines
and the llvm-gcc frontend.

In July 2011 we had to change the way we get enum values, because
there were no flags available to force Xcode's llvm-gcc to include the
enum names and values in DWARF debug output.

We now use clang, not llvm-gcc, on OS X machines.
Earlier versions of clang printed a warning about not knowing the flag.
Newer versions of clang now make that an error.

That is:
 - The flag was added for OS X machines.
 - The flag is no longer necessary on OS X machines.
 - The flag now breaks some OS X machines.

Remove it.

I have run the original program from issue 497 successfully
without the flag on both OS X and Linux machines.

Fixes #6678.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/18850043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/19850048

««« CL 18740044 / 1a8903f0a577
runtime: relax preemption assertion during stack split

The case can happen when starttheworld is calling acquirep
to get things moving again and acquirep gets preempted.
The stack trace is in golang.org/issue/6644.

It is difficult to build a short test case for this, but
the person who reported issue 6644 confirms that this
solves the problem.

Fixes #6644.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/18740044
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20460044

««« CL 15960047 / a0d4544cdb2a
net: handle single-line non-\n-terminated files correctly in readLine

Fixes #6646.

R=rsc, bradfitz
CC=golang-dev
https://golang.org/cl/15960047

»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20560044

««« CL 16430043 / f9af8b83c78c
net/url: fix Encode doc comment

Encoded query strings are always sorted by key; the example wasn't.

R=golang-dev, dsymonds, minux.ma, bradfitz
CC=golang-dev
https://golang.org/cl/16430043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20480044

««« CL 14425049 / 093d299d669e
misc/linkcheck: better redirect handling, use meaningful exit code

Prevent linkcheck from following redirects that lead beyond the outside
the root URL.

Return a non-zero exit code when there are problems.

Some minor refactoring for clarity.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/14425049
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20360044

««« CL 16880043 / 0eb6508d3e88
strings: fix Replacer bug with prefix matches

singleStringReplacer had a bug where if a string was replaced
at the beginning and no output had yet been produced into the
temp buffer before matching ended, an invalid nil check (used
as a proxy for having matched anything) meant it always
returned its input.

Fixes #6659

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/16880043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20570044

««« CL 14087043 / 7ebbddd21330
database/sql: link to wiki in package docs

Update #5886

R=golang-dev, kamil.kisiel, adg, r, rsc, dave, arnehormann, bradfitz
CC=golang-dev
https://golang.org/cl/14087043

»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20610043

««« CL 16650043 / afb8e00de04a
C+A: add Matthew Cottingham (Individual CLA)

Done by addca, but codereview failed with a Python stacktrace,
so submitting by hand.

R=golang-dev
CC=golang-dev
https://golang.org/cl/16650043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/19560046

««« CL 15360045 / f257b02e7ffe
plan9: correct create permissions with union directory

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/15360045

»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/19960046

««« CL 15450047 / 1f81a19c2ee2
misc/dist: use go.tools release branch

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/15450047
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/19850047

««« CL 15570046 / 9169cb38c3e8
test/mapnan: use time.Now instead of syscall.Getrusage

Avoids a dependency on a somewhat nonstandard part of package syscall.

R=golang-dev, dave, r
CC=golang-dev
https://golang.org/cl/15570046
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/19960045

««« CL 14920052 / 98840b3349f4
cmd/cgo: use __typeof__, -w instead of typeof, -Wno-all

Suggested by iant in earlier CL.

R=golang-dev, bradfitz, iant
CC=golang-dev
https://golang.org/cl/14920052
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20600043

[release-branch.go1.2] time: fix ParseDuration overflow when given more than 9 digits on 32-bit arch

««« CL 15080043 / fbf3b853e00b
time: fix ParseDuration overflow when given more than 9 digits on 32-bit arch
Fixes #6617.

R=golang-dev, rsc, r
CC=golang-dev
https://golang.org/cl/15080043

»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20050045

««« CL 14454058 / 6b8f33ab7ca4
misc/emacs: handle empty "import ()" in go-goto-imports

R=adonovan
CC=golang-dev
https://golang.org/cl/14454058

»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20590043

««« CL 15750046 / 2d1e1adf8ece
math: remove unnecessary source file

The routines in this file are dregs from a very early copy of the math API.
There are no Go prototypes and no non-amd64 implementations.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/15750046
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/19560045

««« CL 14930046 / d4f6533fad0b
go/build: document the go1.2 build tag

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/14930046

»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/19960044

««« CL 15570044 / b4c37131e846
crypto/x509: name constraints should be a disjunction.

The code was requiring that all constraints be met, but it should be
satisfied by meeting *any* of them.

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/15570044
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20580043

««« CL 15650043 / 29d3ab5ced5a
crypto/tls: advertise support for RSA+SHA1 in TLS 1.2 handshake.

Despite SHA256 support being required for TLS 1.2 handshakes, some
servers are aborting handshakes that don't offer SHA1 support.

This change adds support for signing TLS 1.2 ServerKeyExchange messages
with SHA1. It does not add support for signing TLS 1.2 client
certificates with SHA1 as that would require the handshake to be
buffered.

Fixes #6618.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/15650043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20570043

««« CL 15510043 / 6752a7aad603
net/mail: fix minor doc typo.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/15510043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20560043

««« CL 15330043 / 69bf31787310
cmd/yacc: fix stderr on Windows.
Fixes #6620.

R=golang-dev, dave, r
CC=golang-dev
https://golang.org/cl/15330043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20550043

««« CL 14870046 / b508daf6dae6
cmd/cgo: fix line number in an error message

Fixes #6563.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/14870046
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20150045

««« CL 15070043 / 90a628ac54ed
cmd/cgo: stop using compiler error message text to analyze C names

The old approach to determining whether "name" was a type, constant,
or expression was to compile the C program

        name;

and scan the errors and warnings generated by the compiler.
This requires looking for specific substrings in the errors and warnings,
which ties the implementation to specific compiler versions.
As compilers change their errors or drop warnings, cgo breaks.
This happens slowly but it does happen.
Clang in particular (now required on OS X) has a significant churn rate.

The new approach compiles a slightly more complex program
that is either valid C or not valid C depending on what kind of
thing "name" is. It uses only the presence or absence of an error
message on a particular line, not the error text itself. The program is:

        // error if and only if name is undeclared
        void f1(void) { typeof(name) *x; }

        // error if and only if name is not a type
        void f2(void) { name *x; }

        // error if and only if name is not an integer constant
        void f3(void) { enum { x = (name)*1 }; }

I had not been planning to do this until Go 1.3, because it is a
non-trivial change, but it fixes a real Xcode 5 problem in Go 1.2,
and the new code is easier to understand than the old code.
It should be significantly more robust.

Fixes #6596.
Fixes #6612.

R=golang-dev, r, james, iant
CC=golang-dev
https://golang.org/cl/15070043
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20060044

««« CL 15110044 / 95336afd420c
cmd/gc: shorten name used for map bucket type

Before:
type.struct { buckets *struct { overflow *struct { overflow *struct { overflow *struct { overflow *struct { overflow *<...>; keys [8]string; values [8]*"".RangeTable }; keys [8]string; values [8]*"".RangeTable }; keys [8]string; values [8]*"".RangeTable }; keys [8]string; values [8]*"".RangeTable }; keys [8]string; values [8]*"".RangeTable }; oldbuckets *struct { overflow *struct { overflow *struct { overflow *struct { overflow *struct { overflow *<...>; keys [8]string; values [8]*"".RangeTable }; keys [8]string; values [8]*"".RangeTable }; keys [8]string; values [8]*"".RangeTable }; keys [8]string; values [8]*"".RangeTable }; keys [8]string; values [8]*"".RangeTable } }

After:
type.map.bucket[string]*"".RangeTable

This makes debugging maps a little nicer, and it takes up less space in the binary.

R=golang-dev, r
CC=golang-dev, khr
https://golang.org/cl/15110044
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20050044

««« CL 14950045 / 1e60ffd5933d
net: make sure failed Dial returns nil Conn

Fixes #6614.

R=golang-dev, bradfitz, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/14950045
»»»

R=golang-dev
CC=golang-dev
https://golang.org/cl/20170047

««« CL 14695044 / 35d5bae6aac8
runtime: remove nomemprof
Nomemprof seems to be unneeded now, there is no recursion.
If the recursion will be re-introduced, it will break loudly by deadlocking.
Fixes #6566.

R=golang-dev, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/14695044
»»»

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/20540043

««« CL 14930043 / 5746e3a5443b
misc/dist: build race packages when os suffix present

The "darwin-amd64-osx10.8" target was not matching "darwin-amd64".

R=golang-dev
CC=golang-dev
https://golang.org/cl/14930043
»»»

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/20290045

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/14860043

Fixes #6607.

R=dsymonds
CC=golang-dev
https://golang.org/cl/14830043

Only add a slash to path if it's a separator between
a host and path.

Fixes #6609

R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/14815043

Fixes #6610.

R=golang-dev, khr
CC=golang-dev
https://golang.org/cl/14793043

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/14792043

Fixes #6556.

R=golang-dev, iant, adg
CC=golang-dev
https://golang.org/cl/14747043

New test added in CL 14611045 causes a deadlock when
running the tests with -cpu=n,n because the fakedb
driver always waits when opening a new connection after
running TestConnectionLeak.  Reset its state after.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/14780043

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/14765043