This lifts the DAG parser from the go/build dependencies test into its
own package that can be reused elsewhere.
I tried to keep the code as close as possible. I changed some names to
reflect the more general purpose of internal/dag. Most of the changes
are related to error handling, since internal/dag doesn't take a
testing.T on which to report errors. Notably, parseRules now returns a
slice of parsed rules rather than calling a callback because this made
it easier to separate fatal parsing errors from non-fatal graph
checking errors.
For #53789.
Change-Id: I170b84fd85f971cfc1a50972156d48e78b45fce3
Reviewed-on: https://go-review.googlesource.com/c/go/+/418592
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This makes builds using earlier Go bootstrap versions fail pretty clearly:
% GOROOT_BOOTSTRAP=$HOME/sdk/go1.16 ./make.bash
Building Go cmd/dist using /Users/rsc/sdk/go1.16. (go1.16 darwin/amd64)
found packages main (build.go) and building_Go_requires_Go_1_17_or_later (notgo117.go) in /Users/rsc/go/src/cmd/dist
%
All the builders have Go 1.17 or later for bootstrap now except
for the android corellium builders, which still need updating (#54246).
We are accepting breakage on those for now.
Fixes#44505.
Change-Id: I12a67f42f61dba43a331cee0a150194d3e42c044
Reviewed-on: https://go-review.googlesource.com/c/go/+/420902
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
riscv64 has SV57 mode when user-space VA is 56 bits.
Linux kernel recently got support for this mode and Go binaries started crashing as:
runtime: lfstack.push invalid packing: node=0xffffff5908a940 cnt=0x1
packed=0xffff5908a9400001 -> node=0xffff5908a940
Adjust lfstack code to use only 8 top bits of pointers on riscv64.
For context see:
https://groups.google.com/g/syzkaller-bugs/c/lU0GQTZoNQQ/m/O_c3vmE3AAAJ
Update #54104
Change-Id: Ib5d3d6a79c0c6eddf11618d73fcc8bc1832a9c25
Reviewed-on: https://go-review.googlesource.com/c/go/+/409055
Reviewed-by: Joel Sing <joel@sing.id.au>
Reviewed-by: Meng Zhuo <mzh@golangcn.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Print the bootstrap toolchain version on Plan 9 and Windows,
same as on all Unix systems since CL 204757 (Nov 2019).
This makes it easier to see what is going on in a build.
For #44505.
Change-Id: I50cdd5e15a7c8b908e33e92780f8a3bca65c91ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/419452
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Include a description of the assembler's "-p" command line option
in the package doc.
Fixes#54215.
Change-Id: I641abad573c37aa9447af6e8b84716093c2a2b70
Reviewed-on: https://go-review.googlesource.com/c/go/+/420900
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Than McIntosh <thanm@google.com>
This CL switches unified IR to start using runtime dictionaries,
rather than pure stenciling. In particular, for each instantiated
function `F[T]`, it now:
1. Generates a global variable `F[T]-dict` of type `[N]uintptr`, with
all of the `*runtime._type` values needed by `F[T]`.
2. Generates a function `F[T]-shaped`, with an extra
`.dict *[N]uintptr` parameter and indexing into that parameter for
derived types. (N.B., this function is not yet actually using shape
types.)
3. Changes `F[T]` to instead be a wrapper function that calls
`F[T]-shaped` passing `&F[T]-dict` as the `.dict` parameter.
This is done in one pass to make sure the overall wiring is all
working (especially, function literals and inlining).
Subsequent CLs will write more information into `F[T]-dict` and update
`F[T]-shaped` to use it instead of relying on `T`-derived information
itself. Once that's done, `F[T]-shaped` can be changed to
`F[shapify(T)]` (e.g., `F[go.shape.int]`) and deduplicated.
Change-Id: I0e802a4d9934794e01a6bfc367820af893335155
Reviewed-on: https://go-review.googlesource.com/c/go/+/420416
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Like OpenBSD, DragonflyBSD does not do IPv4-in-IPv6 mapping.
For #52264.
Change-Id: Id41606e75652e684f2e0e98c6459156641aec9b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/420775
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Rename g variables to gp for consistency.
Change-Id: I09ecdc7e8439637bc0e32f9c5f96f515e6436362
Reviewed-on: https://go-review.googlesource.com/c/go/+/418591
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
sighandler has gp, the goroutine running when the signal arrived, and
gsignal, the goroutine executing the signal handler. The latter is
usually mp.gsignal, except in the case noted by the delayedSignal check.
Like previous CLs, cases where the getg() G is used only to access the M
are replaced with direct uses of mp.
Change-Id: I2dc7894da7004af17682712e07a0be5f9a235d81
Reviewed-on: https://go-review.googlesource.com/c/go/+/418580
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Pratt <mpratt@google.com>
Like previous CLs, cases where the getg() G is used only to access the M
are replaced with direct uses of mp.
Change-Id: I4740c80d6b4997d051a52afcfa8c087e0317dab3
Reviewed-on: https://go-review.googlesource.com/c/go/+/418579
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Pratt <mpratt@google.com>
getg() is used primarily for gp.m, so use mp. gp.m.curg is also used,
name that curgp.
Change-Id: I9db2dc4adce2b17d6b41c60d4f2dfbc9aa41fac1
Reviewed-on: https://go-review.googlesource.com/c/go/+/418578
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
This manually replaces uses of _g_ that cannot be trivially switched to
gp since there is another gp variable in scope.
Most of these functions only use the current g to reach the m, so this
helps with clarity by switching all accesses directly to an mp variable.
Change-Id: I96a4fc1c32470a7f3d12ddec9f147c2743210e71
Reviewed-on: https://go-review.googlesource.com/c/go/+/418577
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
_g_, _p_, and _m_ are primarily vestiges of the C version of the
runtime, while today we prefer Go-style variable names (generally gp,
pp, and mp).
This change replaces all remaining uses of _p_ with pp. These are all
trivial replacements (i.e., no conflicts). That said, there are several
functions that refer to two different Ps at once. There the naming
convention is generally that pp refers to the local P, and p2 refers to
the other P we are accessing.
Change-Id: I205b801be839216972e7644b1fbeacdbf2612859
Reviewed-on: https://go-review.googlesource.com/c/go/+/306674
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
gp is a user G running on the same M as getg(), so it is a fine proxy
for gp.m.
Change-Id: I9aa1dd283ecf28878eeedd7da4ded5c901809832
Reviewed-on: https://go-review.googlesource.com/c/go/+/418576
Run-TryBot: Michael Pratt <mpratt@google.com>
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
* The gp argument to canpanic is always equivalent to getg(), so no need
to pass it at all.
* gp must not be nil or _g_.m would have crashed, so no need to check
for nil.
* Use acquirem to better reason about preemption.
Change-Id: Ic7dc8dc1e56ab4c1644965f6aeba16807cdb2df4
Reviewed-on: https://go-review.googlesource.com/c/go/+/418575
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Pratt <mpratt@google.com>
This is the start of the Go 1.20 development cycle, so update the
Version value accordingly. It represents the Go 1.x version that
will soon open up for development (and eventually become released).
For #40705.
For #53812.
Change-Id: Ic8919a61c9b2f3139717434b9c776d1597175448
Reviewed-on: https://go-review.googlesource.com/c/go/+/420816
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
These changes are enough to pass all.bash using the
disabled linux-amd64-alpine builder via debugnewvm.
For #19938.
For #39857.
Change-Id: I7d160612259c77764b70d429ad94f0864689cdce
Reviewed-on: https://go-review.googlesource.com/c/go/+/419995
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
The test added in CL 420394 only tested that the type assertions
compiled at all. This CL changes it into a run test to make sure the
type assertions compile and also run correctly.
Updates #54135.
Change-Id: Id17469faad1bb55ff79b0bb4163ef50179330033
Reviewed-on: https://go-review.googlesource.com/c/go/+/420421
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Fixes#54135
Change-Id: I2b27af8124014b2699ea44bdc765e1fb8f6c8028
Reviewed-on: https://go-review.googlesource.com/c/go/+/420394
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Now that the development of the Go 1.19 release is almost done, its
release notes are moved to their eventual long-term home in x/website
in CL 420417. Delete the initial development copy here.
For golang/go#51400.
Change-Id: I741285555af28ce9a64e7f8d2b9fe2a0f3e13c26
Reviewed-on: https://go-review.googlesource.com/c/go/+/420418
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Another last-minute fix. The whole repo is checked case-insensitively
against "longarch" and this is the only occurrence.
Change-Id: If13c123c1e44001a346f1df1df9d839c699703b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/420494
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
They were part of a chain of three redirects. Now it's only two,
but that's #54081.
Change-Id: Ibfe6a17a372df61df40124892951b48577e4ced9
Reviewed-on: https://go-review.googlesource.com/c/go/+/419634
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Change-Id: I30c125be6cb321aa03ea827bd11c3169087e3d4c
Reviewed-on: https://go-review.googlesource.com/c/go/+/420314
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
This problem appeared in google-internal testing.
If the run-later functions are run in the wrong order,
type definitions won't resolve properly.
Change-Id: I9da0775976282e92ca036d20fd9fd6650900daf9
Reviewed-on: https://go-review.googlesource.com/c/go/+/419996
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Fixes#53818
Change-Id: I190a8bcf50d92b9c10e9980e630ebb362d8b19ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/417918
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
A few last-minute clarifications before the release.
Change-Id: Ia0123441633c147aa3f76ea29ed26c7722e2416c
Reviewed-on: https://go-review.googlesource.com/c/go/+/419994
Reviewed-by: Ian Lance Taylor <iant@google.com>
Link to the LoongArch documentations site, mention the ABI variant
supported, and add a note about the unfortunate old-world/new-world split
situation that users must be aware of.
Updates #46229
For #51400
Change-Id: I6789f509263a0dbf113481148665e7951aa6a989
Reviewed-on: https://go-review.googlesource.com/c/go/+/417715
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
The changes are likely to break users, and we need
to make it easy to unbreak without code changes.
For #43724.
Fixes#53962.
Change-Id: I105c5d6c801d354467e0cefd268189c18846858e
Reviewed-on: https://go-review.googlesource.com/c/go/+/419794
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Merge List:
+ 2022-07-27 462b78fe70 misc/cgo/test: use fewer threads in TestSetgidStress in long mode
+ 2022-07-27 055113ef36 math/big: check buffer lengths in GobDecode
+ 2022-07-27 4248146154 net: document UDPConn.ReadFromUDPAddrPort's AddrPort result more
+ 2022-07-26 faf4e97200 net: fix WriteMsgUDPAddrPort addr handling
+ 2022-07-26 caa225dd29 doc/go1.19: note that updated race syso files require GNU ld 2.26
+ 2022-07-26 ceefd3a37b bytes: document that Reader.Reset affects the result of Size
+ 2022-07-26 3e97294663 runtime/cgo: use frame address to set g0 stack bound
+ 2022-07-25 24dc27a3c0 cmd/compile: fix blank label code
+ 2022-07-25 9fcc8b2c1e runtime: fix runtime.Breakpoint() on windows/arm64
+ 2022-07-25 795a88d0c3 cmd/go: add space after comma in 'go help test'
+ 2022-07-25 9eb3992ddd doc/go1.19: minor fixes
+ 2022-07-25 dcea1ee6e3 time: clarify documentation for allowed formats and add tests to prove them
+ 2022-07-25 37c8112b82 internal/fuzz: fix typo in function comments
+ 2022-07-25 850d547d2d doc/go1.19: expand crypto release notes
+ 2022-07-24 64f2829c9c runtime: fix typo in function comments
+ 2022-07-24 2ff563a00e cmd/compile/internal/noder: correct spelling errors for instantiation
+ 2022-07-22 c5da4fb7ac cmd/compile: make jump table symbol local
+ 2022-07-22 774fa58d1d A+C: delete AUTHORS and CONTRIBUTORS
+ 2022-07-21 2d655fb15a unsafe: document when Sizeof/Offsetof/Alignof are not constant
+ 2022-07-21 076c3d7f07 net/http: remove accidental heading in Head documentation
+ 2022-07-21 c4a6d3048b cmd/dist: enable race detector test on S390X
+ 2022-07-20 244c8b0500 cmd/cgo: allow cgo to pass strings or []bytes bigger than 1<<30
+ 2022-07-20 df38614bd7 test: use go tool from tree, not path
+ 2022-07-20 bb1749ba3b cmd/compile: improve GOAMD64=v1 violation test
+ 2022-07-19 176b63e711 crypto/internal/nistec,debug/gosym: fix typos
Change-Id: I96e5d60039381691dffd841e58927f0afff8c544
The current documentation for go/types.(*Packages).Imports requires
that the import graph be flattened when read from export data. I think
this is a documentation bug (incorrectly codifying the existing
behavior, rather than documenting it as a known bug), but until that's
decided, we can at least flatten imports ourselves.
Updates #54096.
Change-Id: Idc054a2efc908b3e6651e6567d0ea0e89bb0c54d
Reviewed-on: https://go-review.googlesource.com/c/go/+/419596
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Currently, there's a "has init" bool in the public metadata section,
which is only needed by cmd/compile; but because it's in the public
metadata section, it's known to the go/types importers too. This CL
moves it instead to the new compiler-only private metadata section
added in the last CL for the inline bodies index.
The existing bool in the public metadata section is left in place, and
just always set to false, to avoid breaking the x/tools importer. The
next time we bump the export version number, we can remove the bool
properly. But no urgency just yet.
Change-Id: I380f358652374b5a221f85020a53dc65912ddb29
Reviewed-on: https://go-review.googlesource.com/c/go/+/419676
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
An important optimization in the existing export data format is the
pruning of unreachable inline bodies. That is, when re-exporting
transitively imported types, omitting the inline bodies for methods
that can't actually be needed due to importing that package.
The existing logic (implemented in typecheck/crawler.go) is fairly
sophisticated, but also relies on actually expanding inline bodies in
the process, which is undesirable. However, including all inline
bodies is also prohibitive for testing GOEXPERIMENT=unified against
very large Go code bases that impose size limits on build action
inputs.
As a short-term solution, this CL implements a simple heuristic for
GOEXPERIMENT=unified: include the inline bodies for all
locally-declared functions/methods, and for any imported
functions/methods that were inlined into this package.
Change-Id: I686964a0cd9262b77d3d5587f89cfbcfe8b2e521
Reviewed-on: https://go-review.googlesource.com/c/go/+/419675
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Type switches are the only context where exprType was used and `nilOK`
was true. It'll simplify subsequent dictionary work somewhat if
exprType doesn't need to worry about `nil`, so extract this logic and
move it into switchStmt instead.
Change-Id: I3d810f465173f5bb2e2dee7bbc7843fff6a62ee5
Reviewed-on: https://go-review.googlesource.com/c/go/+/419474
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
This CL changes convRTTI into a serialization method too, like the
previous CL's rtype method. And again, currently this just builds on
the existing type serialization logic, but will eventually be changed
to use dictionary lookups where appropriate.
Change-Id: I551aef8ade24b08dc6206f06ace86d91e665f5c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/419457
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
This CL adds `rtype` methods for unified IR for writing/reading types
that need to have their *runtime._type value available.
For now, this just builds on the existing type writing/reading
mechanics and calling reflectdata.TypePtrAt; but longer term, reading
of derived types can be changed to use dictionary lookups instead.
Change-Id: I6f803b84546fa7df2877a8a3bcbf2623e4b03449
Reviewed-on: https://go-review.googlesource.com/c/go/+/419456
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
TestSetgidStress originally spawns 1000 threads for stress testing.
It caused timeout on some builders so CL 415677 reduced to 50 in
short mode. But it still causes flaky timeouts in longtest
builders, so reduce the number of threads in long mode as well.
Should fix#53641.
Change-Id: I02f4ef8a143bb1faafe3d11ad223f36f5cc245c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/419453
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
