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Commit Graph

40135 Commits

Author SHA1 Message Date
Elias Naur
8bde43e069 cmd/go,cmd/internal/sys,cmd/link: skip Go build ids for externally linked tools
cmd/go already skips build ids on Android where buildmode=pie is
forced. Expand the check to all externally linked tools.

Necessary for self-hosted iOS builds where PIE is not forced but
external linking is.

Updates #31722

Change-Id: Iad796a9411a37eb0c44d365b70a3c5907537e461
Reviewed-on: https://go-review.googlesource.com/c/go/+/174307
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-04-30 19:38:46 +00:00
Emmanuel T Odeke
88548d0211 net/http: make Server return 501 for unsupported transfer-encodings
Ensures that our HTTP/1.X Server properly responds
with a 501 Unimplemented as mandated by the spec at
RFC 7230 Section 3.3.1, which says:
    A server that receives a request message with a
    transfer coding it does not understand SHOULD
    respond with 501 (Unimplemented).

Fixes #30710

Change-Id: I096904e6df053cd1e4b551774cc27523ff3d09f6
Reviewed-on: https://go-review.googlesource.com/c/go/+/167017
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 19:23:58 +00:00
Bryan C. Mills
c66ab9b182 cmd/go: query modules in parallel
Refactor modload.QueryPackage and modload.QueryPattern to share code.

Fine-tune error reporting and make it consistent between QueryPackage and QueryPattern.

Expand tests for pattern errors.

Update a TODO in modget/get.go and add a test case that demonstrates it.

Updates #26232

Change-Id: I900ca8de338ef9a51b7f85ed93d8bcf837621646
Reviewed-on: https://go-review.googlesource.com/c/go/+/173017
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-04-30 19:22:08 +00:00
Elias Naur
8e4f1a71f2 time: look for zoneinfo.zip in GOROOT
The zoneinfo.zip file will be in the $GOROOT in self-hsoted builds
on iOS.

Updates #31722

Change-Id: I991fae92e3dc50581b099a2d8901aed36ecc7cef
Reviewed-on: https://go-review.googlesource.com/c/go/+/174310
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-04-30 19:13:43 +00:00
Liberatys
62ddf7d0c5 cmd/go: derive executable name from package path in 'go run'
Change name of temporary executable on go run . to directory name.
Fixes #31571

Change-Id: I0a0ce74154e76205bb43805c95bd7fb8fd2dfd01
GitHub-Last-Rev: e0964983e1
GitHub-Pull-Request: golang/go#31614
Reviewed-on: https://go-review.googlesource.com/c/go/+/173297
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-04-30 18:40:06 +00:00
Elias Naur
888bac1421 cmd/dist: detect GOHOSTARCH on iOS
cmd/dist defaults to GOHOSTARCH=amd64 on darwin because no other
darwin host could build Go. With the upcoming self-hosted iOS
builders, GOHOSTARCH=arm64 is also possible.

Updates #31722

Change-Id: I9af47d9f8c57ea45475ce498acefbfe6bf4815b9
Reviewed-on: https://go-review.googlesource.com/c/go/+/174306
Run-TryBot: Elias Naur <mail@eliasnaur.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 18:29:07 +00:00
Elias Naur
d7edc91643 cmd/dist: set the default external linker on platforms without gcc
The go tool already sets -extld to the appropriate compiler. This
CL changes cmd/dist to do the same, to fix bootstrapping on platforms
that only have clang (Android and iOS).

Updates #31722

Change-Id: I8a4fd227f85a768053a8946198eab68bbbdf9ae5
Reviewed-on: https://go-review.googlesource.com/c/go/+/174305
Run-TryBot: Elias Naur <mail@eliasnaur.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 18:28:47 +00:00
Brad Fitzpatrick
55d690d02c encoding/gob: adding missing fuzz skip to one of the fuzz tests
It's slow & often times out randomly on longtest builders. Not useful.

Fixes #31517

Change-Id: Icedbb0c94fbe43d04e8b47d5785ac61c5e2d8750
Reviewed-on: https://go-review.googlesource.com/c/go/+/174522
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 18:20:58 +00:00
Josh Bleecher Snyder
73cb9a1cb3 all: refer to map elements as elements instead of values
The spec carefully and consistently uses "key" and "element"
as map terminology. The implementation, not so much.

This change attempts to make the implementation consistently
hew to the spec's terminology. Beyond consistency, this has
the advantage of avoid some confusion and naming collisions,
since v and value are very generic and commonly used terms.

I believe that I found all everything, but there are a lot of
non-obvious places for these to hide, and grepping for them is hard.
Hopefully this change changes enough of them that we will start using
elem going forward. Any remaining hidden cases can be removed ad hoc
as they are discovered.

The only externally-facing part of this change is in package reflect,
where there is a minor doc change and a function parameter name change.

Updates #27167

Change-Id: I2f2d78f16c360dc39007b9966d5c2046a29d3701
Reviewed-on: https://go-review.googlesource.com/c/go/+/174523
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-04-30 18:18:12 +00:00
Baokun Lee
a8d0047e47 cmd/go/internal/modcmd: allow mod download without go.mod
Fixes #29522

Change-Id: I48f3a945d24c23c7c7ef5c7f1fe5046b6b2898e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/157937
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2019-04-30 18:11:24 +00:00
Keith Randall
1fd1408203 runtime: fix data sizes for res_search results
The return values are 32 bit, not 64 bit.

I don't think this would be the cause of any problems, but
it can't hurt to fix it.

Change-Id: Icdd50606360ab9d74070271f9d1721d5fe640bc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/174518
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 17:45:16 +00:00
Joshua M. Clulow
f686a2890b all: add new GOOS=illumos, split out of GOOS=solaris
Like GOOS=android which implies the "linux" build tag, GOOS=illumos
implies the "solaris" build tag. This lets the existing ecosystem of
packages still work on illumos, but still permits packages to start
differentiating between solaris and illumos.

Fixes #20603

Change-Id: I8f4eabf1a66060538dca15d7658c1fbc6c826622
Reviewed-on: https://go-review.googlesource.com/c/go/+/174457
Run-TryBot: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 16:59:13 +00:00
Clément Chigot
0c9e0c257b cmd/link: add .go.buildinfo in XCOFF symbol table
.go.buildinfo must be added to the symbol table on AIX. Otherwise, ld
won't be able to handle its relocations.

This patch also make ".data" the default section for all symbols inside
the data segment.

Change-Id: I83ac2bf1050e0ef6ef9c96ff793efd4ddc8e98d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/174298
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-04-30 16:54:38 +00:00
Elias Naur
9f12e2e04b runtime: implement pthread functions for darwin/arm64
They were not needed when Go only produced binaries with cgo suppport.
Now that Go is about to run self-hosted on iOS we do need these.

Updates #31722

Change-Id: If233aa2b31edc7b1c2dcac68974f9fba0604f9a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/174300
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2019-04-30 16:43:59 +00:00
Brad Fitzpatrick
e0ac75d2ab cmd/dist: disable cgo for darwin/386
Fixes #31751

Change-Id: Id002f14557a34accc3597cb1b9a42e838a027da4
Reviewed-on: https://go-review.googlesource.com/c/go/+/174497
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 16:41:23 +00:00
Romain Baugue
4ad1355518 html: add a Fuzz function
Adds a sample Fuzz test function to package html based on
https://github.com/dvyukov/go-fuzz-corpus/blob/master/stdhtml/main.go

Updates #19109
Updates #31309

Change-Id: I8c49fff8f70fc8a8813daf1abf0044752003adbb
Reviewed-on: https://go-review.googlesource.com/c/go/+/174301
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 15:48:46 +00:00
Tyler Bui-Palsulich
12aec551c4 cmd/go: say to confirm import path when it's not found
Fixes #31366.

Change-Id: Ief26f53e7fe94bedb7db79d3d7130c4cdcec4281
Reviewed-on: https://go-review.googlesource.com/c/go/+/174179
Run-TryBot: Jay Conrod <jayconrod@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 15:03:35 +00:00
Romain Baugue
858064fb01 encoding/csv: add a Fuzz function
Adds a sample Fuzz test function to package encoding/csv based on
https://github.com/dvyukov/go-fuzz-corpus/blob/master/csv/main.go

Updates #19109
Updates #31309

Change-Id: Ieb0cb6caa1df72dbb7e29df4bdeed0bfa91187d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/174302
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 15:03:04 +00:00
Russ Cox
8e28cd19ac cmd/go/internal/modfetch: fix concurrent read/write race in modfetch
On Windows systems, the failure rate for cmd/go's TestScript/mod_concurrent
is somewhere around 3-10% without this change. With the change, I have yet
to see a failure.

Fixes #31744.

Change-Id: Ib321ebb9556dd8438086cf329dfa083a9e051732
Reviewed-on: https://go-review.googlesource.com/c/go/+/174439
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-30 13:12:48 +00:00
Richard Musiol
203e188837 cmd/internal/obj/wasm: cache SP in a local
We use Wasm global variables extensively for simulating
registers, especially SP. V8 does not handle global variables
efficiently.

This CL reduces global variable accesses by caching the global SP
in a local variable in each function. The local cache is set on
function entry and updated after each call (where the stack could
have moved). Within a function, the SP access will use the local
variable.

Supersedes https://golang.org/cl/173979.

Running on Chrome Version 73.0.3683.103 on darwin/amd64:

name                   old time/op    new time/op     delta
BinaryTree17              15.3s ± 2%      14.5s ± 3%   -5.20%  (p=0.000 n=9+10)
Fannkuch11                8.91s ± 2%      9.48s ± 2%   +6.41%  (p=0.000 n=9+10)
FmtFprintfEmpty           197ns ± 5%      165ns ± 3%  -16.09%  (p=0.000 n=9+8)
FmtFprintfString          354ns ± 8%      325ns ± 7%   -8.33%  (p=0.001 n=10+10)
FmtFprintfInt             400ns ± 4%      368ns ± 6%   -8.01%  (p=0.000 n=10+10)
FmtFprintfIntInt          618ns ± 3%      587ns ± 6%   -4.97%  (p=0.001 n=10+10)
FmtFprintfPrefixedInt     637ns ± 4%      606ns ± 4%   -4.88%  (p=0.000 n=10+10)
FmtFprintfFloat           965ns ± 7%      898ns ± 4%   -6.97%  (p=0.000 n=10+10)
FmtManyArgs              2.34µs ± 1%     2.24µs ± 3%   -4.40%  (p=0.000 n=9+10)
GobDecode                29.8ms ± 3%     28.8ms ± 6%   -3.60%  (p=0.006 n=9+10)
GobEncode                20.5ms ± 8%     17.6ms ± 3%  -14.32%  (p=0.000 n=10+10)
Gzip                      714ms ± 3%      718ms ± 8%     ~     (p=0.971 n=10+10)
Gunzip                    148ms ± 3%      136ms ± 3%   -7.99%  (p=0.000 n=10+9)
HTTPClientServer          219µs ± 3%      215µs ± 4%     ~     (p=0.190 n=10+10)
JSONEncode               35.1ms ± 2%     31.8ms ±13%   -9.52%  (p=0.002 n=10+10)
JSONDecode                220ms ± 3%      207ms ± 5%   -5.87%  (p=0.000 n=10+10)
Mandelbrot200            5.22ms ± 1%     5.11ms ± 4%   -2.11%  (p=0.027 n=8+10)
GoParse                  17.2ms ± 6%     16.1ms ± 5%   -6.63%  (p=0.000 n=10+9)
RegexpMatchEasy0_32       375ns ± 3%      340ns ± 3%   -9.25%  (p=0.000 n=10+10)
RegexpMatchEasy0_1K      2.70µs ± 3%     2.65µs ± 4%     ~     (p=0.118 n=10+10)
RegexpMatchEasy1_32       341ns ± 2%      305ns ± 4%  -10.62%  (p=0.000 n=9+10)
RegexpMatchEasy1_1K      3.20µs ± 3%     2.99µs ± 3%   -6.35%  (p=0.000 n=10+10)
RegexpMatchMedium_32      520ns ± 3%      501ns ± 4%   -3.64%  (p=0.002 n=9+10)
RegexpMatchMedium_1K      145µs ± 7%      128µs ± 3%  -11.57%  (p=0.000 n=9+10)
RegexpMatchHard_32       7.88µs ± 3%     7.01µs ± 5%  -10.97%  (p=0.000 n=10+10)
RegexpMatchHard_1K        237µs ± 5%      207µs ± 4%  -12.71%  (p=0.000 n=9+10)
Revcomp                   2.34s ± 1%      2.31s ± 5%     ~     (p=0.230 n=7+10)
Template                  261ms ± 7%      246ms ± 5%   -5.93%  (p=0.007 n=10+10)
TimeParse                1.47µs ± 3%     1.39µs ± 5%   -5.75%  (p=0.000 n=9+10)
TimeFormat               1.52µs ± 3%     1.43µs ± 4%   -6.42%  (p=0.000 n=8+10)

name                   old speed      new speed       delta
GobDecode              25.7MB/s ± 3%   26.7MB/s ± 5%   +3.77%  (p=0.006 n=9+10)
GobEncode              37.5MB/s ± 8%   43.7MB/s ± 3%  +16.61%  (p=0.000 n=10+10)
Gzip                   27.2MB/s ± 3%   27.0MB/s ± 7%     ~     (p=0.971 n=10+10)
Gunzip                  131MB/s ± 3%    142MB/s ± 5%   +8.07%  (p=0.000 n=10+10)
JSONEncode             55.2MB/s ± 2%   61.2MB/s ±12%  +10.80%  (p=0.002 n=10+10)
JSONDecode             8.84MB/s ± 3%   9.39MB/s ± 5%   +6.28%  (p=0.000 n=10+10)
GoParse                3.37MB/s ± 6%   3.61MB/s ± 5%   +7.09%  (p=0.000 n=10+9)
RegexpMatchEasy0_32    85.3MB/s ± 3%   94.0MB/s ± 3%  +10.20%  (p=0.000 n=10+10)
RegexpMatchEasy0_1K     379MB/s ± 3%    387MB/s ± 4%     ~     (p=0.123 n=10+10)
RegexpMatchEasy1_32    93.9MB/s ± 2%  105.1MB/s ± 4%  +11.96%  (p=0.000 n=9+10)
RegexpMatchEasy1_1K     320MB/s ± 3%    342MB/s ± 3%   +6.79%  (p=0.000 n=10+10)
RegexpMatchMedium_32   1.92MB/s ± 2%   2.00MB/s ± 3%   +3.94%  (p=0.001 n=9+10)
RegexpMatchMedium_1K   7.09MB/s ± 6%   8.01MB/s ± 3%  +13.00%  (p=0.000 n=9+10)
RegexpMatchHard_32     4.06MB/s ± 3%   4.56MB/s ± 5%  +12.38%  (p=0.000 n=10+10)
RegexpMatchHard_1K     4.32MB/s ± 4%   4.96MB/s ± 4%  +14.60%  (p=0.000 n=9+10)
Revcomp                 109MB/s ± 1%    110MB/s ± 5%     ~     (p=0.219 n=7+10)
Template               7.44MB/s ± 8%   7.91MB/s ± 5%   +6.30%  (p=0.007 n=10+10)

Change-Id: I5828cf6b23ce104c02addc2642aba48dd6c48aab
Reviewed-on: https://go-review.googlesource.com/c/go/+/174062
Run-TryBot: Richard Musiol <neelance@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2019-04-30 11:29:43 +00:00
Richard Musiol
c2d9eea1f1 runtime: do not use heap arena hints on wasm
The address space of WebAssembly's linear memory is contiguous, so
requesting specific addresses is not supported. Do not use heap arena
hints so we do not have unused memory ranges.

This fixes go1 benchmarks on wasm which ran out of memory since
https://golang.org/cl/170950.

Change-Id: I70115b18dbe43abe16dd5f57996343d97bf94760
Reviewed-on: https://go-review.googlesource.com/c/go/+/174203
Run-TryBot: Richard Musiol <neelance@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2019-04-30 08:25:33 +00:00
LE Manh Cuong
dcb84828a6 encoding/json: fix Unmarshal hang on recursive pointers
indirect walks down v until it gets to a non-pointer. But it does not
handle the case when v is a pointer to itself, like in:

	var v interface{}
	v = &v
	Unmarshal(b, v)

So just stop immediately if we see v is a pointer to itself.

Fixes #31740

Change-Id: Ie396264119e24d70284cd9bf76dcb2050babb069
Reviewed-on: https://go-review.googlesource.com/c/go/+/174337
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-04-30 04:57:42 +00:00
Russ Cox
d021dd6a3f cmd/go: add test of $GONOPROXY, $GONOSUMDB behavior
Change-Id: I8a4917ce14ea22d5991226e485d43a9c9312950e
Reviewed-on: https://go-review.googlesource.com/c/go/+/174219
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-04-30 01:32:48 +00:00
Keith Randall
ee59c06acb cmd/compile: evaluate map initializers incrementally
For the code:

m := map[int]int {
  a(): b(),
  c(): d(),
  e(): f(),
}

We used to do:

t1 := a()
t2 := b()
t3 := c()
t4 := d()
t5 := e()
t6 := f()
m := map[int]int{}
m[t1] = t2
m[t3] = t4
m[t5] = t6

After this CL we do:

m := map[int]int{}
t1 := a()
t2 := b()
m[t1] = t2
t3 := c()
t4 := d()
m[t3] = t4
t5 := e()
t6 := f()
m[t5] = t6

Ordering the initialization this way limits the lifetime of the
temporaries involved.  In particular, for large maps the number of
simultaneously live temporaries goes from ~2*len(m) to ~2. This change
makes the compiler (regalloc, mostly) a lot happier. The compiler runs
faster and uses a lot less memory.

For #26546, changes compile time of a big map from 8 sec to 0.5 sec.

Fixes #26552

Update #26546

Change-Id: Ib7d202dead3feaf493a464779fd9611c63fcc25f
Reviewed-on: https://go-review.googlesource.com/c/go/+/174417
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2019-04-29 23:45:15 +00:00
Joel Sing
998cc2a1c5 cmd,runtime: enable cgo for openbsd/arm64
Updates #31656.

Change-Id: Ide6f829282fcdf20c67998b766a201a6a92c3035
Reviewed-on: https://go-review.googlesource.com/c/go/+/174132
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-04-29 23:06:59 +00:00
Ian Lance Taylor
98c5a56f01 runtime: account for callbacks in checkdead on Windows
When a callback runs on a different thread in Windows, as in the
runtime package test TestCallbackInAnotherThread, it will use the
extra M. That can cause the test in checkdead to fail incorrectly.
Check whether there actually is an extra M before expecting it.

I think this is a general problem unrelated to timers. I think the test
was passing previously because the timer goroutine was using an M.
But I haven't proved that. This change seems correct, and it avoids
the test failure when using the new timers on Windows.

Updates #27707

Change-Id: Ieb31c04ff0354d6fae7e173b59bcfadb8b0464cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/174037
Reviewed-by: Keith Randall <khr@golang.org>
2019-04-29 22:35:35 +00:00
Clément Chigot
ccbc9a3f9f cmd/go: add XCOFF format handler for go version
Change-Id: Ib102ae95acfd89fc3c9942a4ec82c74362f62045
Reviewed-on: https://go-review.googlesource.com/c/go/+/174299
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-04-29 22:17:05 +00:00
Clément Chigot
d5014ec05b runtime: make mmap return 0 instead of -1 on aix/ppc64
Most of the platforms are returning 0 instead of -1 when mmap syscalls
is failing. This patch corrects it for AIX in order to fix
TestMmapErrorSign and to improve AIX compatibility.

Change-Id: I1dad88d0e69163ad55c504b2b4a997892fd876cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/174297
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-04-29 21:26:07 +00:00
Caleb Spare
fbc6a97222 testing: delay flag registration; move to an Init function
Any code that imports the testing package forces the testing flags to be
defined, even in non-test binaries. People work around this today by
defining a copy of the testing.TB interface just to avoid importing
testing.

Fix this by moving flag registration into a new function, testing.Init.
Delay calling Init until the testing binary begins to run, in
testing.MainStart.

Init is exported for cases where users need the testing flags to be
defined outside of a "go test" context. In particular, this may be
needed where testing.Benchmark is called outside of a test.

Fixes #21051

Change-Id: Ib7e02459e693c26ae1ba71bbae7d455a91118ee3
Reviewed-on: https://go-review.googlesource.com/c/go/+/173722
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-04-29 19:54:30 +00:00
Brad Fitzpatrick
2b8cbc384d syscall: don't return EINVAL on zero Chmod mode on Windows
Fixes #20858

Change-Id: I45c397795426aaa276b20f5cbeb80270c95b920c
Reviewed-on: https://go-review.googlesource.com/c/go/+/174320
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-29 19:15:54 +00:00
Elias Naur
6ee8324388 runtime/cgo: ignore missing Info.plist files on iOS
When running Go programs on Corellium virtual iPhones, the Info.plist
files might not exist. Ignore the error.

Updates #31722

Change-Id: Id2e315c09346b69dda9e10cf29fb5dba6743aac4
Reviewed-on: https://go-review.googlesource.com/c/go/+/174202
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-04-29 19:09:29 +00:00
Brad Fitzpatrick
06c9ccdfc7 os/exec: always set SYSTEMROOT on Windows if not listed in Cmd.Env
Fixes #25210

Change-Id: If27b61776154dae9b9b67bf4e4f5faa785d98105
Reviewed-on: https://go-review.googlesource.com/c/go/+/174318
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-04-29 19:08:13 +00:00
Haosdent Huang
8c1f78524e runtime: support all as parameter in gdb goroutine commands.
For example, can use `goroutine all bt` to dump all goroutines'
information.

Change-Id: I51b547c2b837913e4bdabf0f45b28f09250a3e34
GitHub-Last-Rev: d04dcd4f58
GitHub-Pull-Request: golang/go#26283
Reviewed-on: https://go-review.googlesource.com/c/go/+/122589
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
2019-04-29 18:11:11 +00:00
Joel Sing
08b956f378 runtime: initialise cpu.HWCap on openbsd/arm64
OpenBSD does not provide auxv, however we still need to initialise cpu.HWCap.
For now initialise it to the bare minimum, until some form of CPU capability
detection is implemented or becomes available - see issue #31746.

Updates #31656

Change-Id: I68c3c069319fe60dc873f46def2a67c9f3d937d5
Reviewed-on: https://go-review.googlesource.com/c/go/+/174129
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-04-29 17:42:27 +00:00
Richard Musiol
9308637e3c misc/wasm: fix command line arguments containing multi-byte characters
Command line arguments containing multi-byte characters were causing
go_js_wasm_exec to crash (RangeError: Source is too large), because
their byte length was not handled correctly. This change fixes the bug.

Fixes #31645.

Change-Id: I7860ebf5b12da37d9d0f43d4b6a22d326a90edaf
Reviewed-on: https://go-review.googlesource.com/c/go/+/173877
Run-TryBot: Richard Musiol <neelance@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-04-29 17:33:47 +00:00
BigMikes
cbf90b0028 net: correct docs of KeepAlive field in Dialer type
KeepAlive field used to report the wording "keep-alive period"
which may be misleading. This field does not represent the whole
TCP keepalive time, that is the inactivity period upon which one
endpoint starts probing the other end. But it acctually specifies
the keepalive interval, that is the time between two keepalive
probes.

Fixes #29089

Change-Id: If99b38ba108830d0e5fe527171a2f5c96a3bcde7
Reviewed-on: https://go-review.googlesource.com/c/go/+/155960
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-04-29 16:49:52 +00:00
Brad Fitzpatrick
76659e4797 cmd/link/internal/s390x: fix s390x build
Fix breakage from CL 173437

Change-Id: If218ffaa1259fbdee641143ffbe4b38030c373b9
Reviewed-on: https://go-review.googlesource.com/c/go/+/174278
Reviewed-by: Michael Munday <mike.munday@ibm.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2019-04-29 15:28:44 +00:00
Dmitri Shuralyov
db1514cbf2 net/http: remove "number:" from Response.Status string
The behavior of Value.String method on non-string JavaScript types has
changed after CL 169757.

Update the implementation of Transport.RoundTrip method to construct the
Response.Status string without relying on result.Get("status").String(),
since that now returns strings like "<number: 200>" instead of "200".

Fixes #31736

Change-Id: I27b3e6cc95aa65fd1918b1400e88478a154aad12
Reviewed-on: https://go-review.googlesource.com/c/go/+/174218
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Richard Musiol <neelance@gmail.com>
2019-04-29 15:23:10 +00:00
Daniel Martí
a27ede0ba9 all: remove a few unused parameters
I recently modified tabwriter to reduce the number of defers due to
flush calls. However, I forgot to notice that the new function
flushNoDefers can no longer return an error, due to the lack of the
defer.

In crypto/tls, hashForServerKeyExchange never returned a non-nil error,
so simplify the code.

Finally, in go/types and net we can find a few trivially unused
parameters, so remove them.

Change-Id: I54c8de83fbc944df432453b55c93008d7e810e61
Reviewed-on: https://go-review.googlesource.com/c/go/+/174131
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
2019-04-29 13:31:54 +00:00
Romain Baugue
45ed3dbddf encoding/json: add a Fuzz function
Adds a sample Fuzz test function to package encoding/json following the
guidelines defined in #31309, based on
https://github.com/dvyukov/go-fuzz-corpus/blob/master/json/json.go

Fixes #31309
Updates #19109

Change-Id: I5fe04d9a5f41c0de339f8518dae30896ec14e356
Reviewed-on: https://go-review.googlesource.com/c/go/+/174058
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Dmitry Vyukov <dvyukov@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-29 13:20:30 +00:00
Russ Cox
3cf1d77080 cmd/go: implement Go checksum database support
This CL adds support for consulting the Go checksum database
when downloading a module that is not already listed in go.sum.
The overall system is described at golang.org/design/25530-sumdb,
and this CL implements the functionality described specifically in
golang.org/design/25530-sumdb#command-client.

Although the eventual plan is to set GOPROXY and GOSUMDB to
default to a Google-run proxy serving the public Go ecosystem,
this CL leaves them off by default.

Fixes #30601.

Change-Id: Ie46140f93c6cc2d85573fbce0878a258819ff44d
Reviewed-on: https://go-review.googlesource.com/c/go/+/173951
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-29 12:39:27 +00:00
Alex Myasoedov
203b80ab86 strconv: Document ParseFloat's special cases
Updates #30990

Change-Id: I968fb13251ab3796328089046a3f0fc5c7eb9df9
Reviewed-on: https://go-review.googlesource.com/c/go/+/174204
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Run-TryBot: Benny Siegert <bsiegert@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-29 11:07:31 +00:00
Alessandro Arzilli
d016330241 runtime: whitelist debugCall32..debugCall65536 in debugCallCheck
Whitelists functions debugCall32 through debugCall65536 in
runtime.debugCallCheck so that any instruction inside those functions
is considered a safe point.
This is useful for implementing nested function calls.

For example when evaluating:

	f(g(x))

The debugger should:

1. initiate the call to 'f' until the entry point of 'f',
2. complete the call to 'g(x)'
3. copy the return value of 'g(x)' in the arguments of 'f'
4. complete the call to 'f'

Similarly for:

	f().amethod()

The debugger should initiate the call to '.amethod()', then initiate
and complete the call to f(), copy the return value to the arguments
of '.amethod()' and finish its call.
However in this example, unlike the other example, it may be
impossible to determine the entry point of '.amethod()' until after
'f()' is evaluated, which means that the call to 'f()' needs to be
initiated while stopped inside a debugCall... function.

Change-Id: I575c23542709cedb1a171d63576f7e11069c7674
Reviewed-on: https://go-review.googlesource.com/c/go/+/161137
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-04-29 04:05:29 +00:00
Carlos Eduardo Seo
50ad09418e cmd/compile: intrinsify math/bits.Add64 for ppc64x
This change creates an intrinsic for Add64 for ppc64x and adds a
testcase for it.

name               old time/op  new time/op  delta
Add64-160          1.90ns ±40%  2.29ns ± 0%     ~     (p=0.119 n=5+5)
Add64multiple-160  6.69ns ± 2%  2.45ns ± 4%  -63.47%  (p=0.016 n=4+5)

Change-Id: I9abe6fb023fdf62eea3c9b46a1820f60bb0a7f97
Reviewed-on: https://go-review.googlesource.com/c/go/+/173758
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Run-TryBot: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
2019-04-28 23:51:04 +00:00
Joel Sing
6b692300a1 runtime: remove spurious register loads for openbsd/amd64 kqueue
The kqueue system call takes no arguments, hence there should be no need
to zero the registers used for the first syscall arguments.

Change-Id: Ia79b2d4f4d568bb6795cb885e1464cf1fc2bf7c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/174128
Run-TryBot: Benny Siegert <bsiegert@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
2019-04-28 18:20:42 +00:00
Jason A. Donenfeld
049c8dbfdb syscall: allow setting security attributes on processes
This allows creating processes that can only be debugged/accessed by
certain tokens, according to a particular security descriptor. We
already had everything ready for this but just neglected to pass through
the value from the user-accessible SysProcAttr.

Change-Id: I4a3fcc9f5078aa0058b26c103355c984093ae03f
Reviewed-on: https://go-review.googlesource.com/c/go/+/174197
Run-TryBot: Jason Donenfeld <Jason@zx2c4.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2019-04-28 05:44:03 +00:00
Alex Brainman
e85d619530 cmd/go/internal/renameio: use ERROR_ACCESS_DENIED to check for errors
CL 172418 added code to check for "Access is denied" error.
But "Access is denied" error will be spelled differently on
non-English version of Windows.

Check if error is ERROR_ACCESS_DENIED instead.

Updates #31247

Change-Id: I7b1633013d563f7c06c1f12a9be75122106834f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/174123
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2019-04-28 03:20:38 +00:00
Elias Naur
4fdeb73fed cmd/link/internal/ld,syscall: replace getfsstat64 with getfsstat
getfsstat64 is deprecated but not yet caught by the App Store checks.
Use the supported getfsstat$INODE64 form instead to ensure forward
compatibility.

Change-Id: I0d97e8a8b254debb3de1cfcb3778dbed3702c249
Reviewed-on: https://go-review.googlesource.com/c/go/+/174200
Run-TryBot: Elias Naur <mail@eliasnaur.com>
Reviewed-by: Keith Randall <khr@golang.org>
2019-04-27 21:47:58 +00:00
Elias Naur
096ab3c21b cmd/link/internal/ld,syscall: drop $INODE64 suffixes on simulators
Some libc functions are suffixed with "$INODE64" on macOS.
Unfortunately, the iOS simulator doesn't have the suffixes, so we can't
use GOARCH to distinguish the two platform.

Add linker support for adding the suffix, using the macho platform
to determine whether it is needed.

While here, add the correct suffix for fdopendir on 386. It's
"$INODE64$UNIX2003", believe it or not. Without the suffix,

GOARCH=386 go test -short syscall

crashes on my Mojave machine.

Fixes #31447

Change-Id: I9bd3de40ece7df62f744bc24cd00909e56b00b78
Reviewed-on: https://go-review.googlesource.com/c/go/+/174199
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2019-04-27 21:47:07 +00:00
Elias Naur
a74e01204e cmd/link/internal/ld: consolidate macho platform setup
Determine the macho platform once and use that the two places that
need it. This makes it easier to add a third platform check for a
follow-up change.

Updates #31447

Change-Id: I522a5fface647ab8e608f816c5832d531534df7a
Reviewed-on: https://go-review.googlesource.com/c/go/+/174198
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2019-04-27 21:29:58 +00:00