For unclear reasons, cacheSpan and uncacheSpan compute the number of
elements in a span by dividing its size by the element size. This
number is simply available in the mspan structure, so just use it.
Change-Id: If2e5de6ecec39befd3324bf1da4a275ad000932f
Reviewed-on: https://go-review.googlesource.com/c/138656
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Lazy mcache flushing (golang.org/cl/134783) made it so that moving a
span from an mcache to an mcentral was sometimes responsible for
sweeping the span. However, it did a "preserving" sweep, which meant
it retained ownership, even if the sweeper swept all objects in the
span. As a result, we could put a completely unused span back in the
mcentral.
Fix this by first taking back ownership of the span into the mcentral
and moving it to the right mcentral list, and then doing a
non-preserving sweep. The non-preserving sweep will move the span to
the heap if it sweeps all objects.
Change-Id: I244b1893b44b8c00264f0928ac9239449775f617
Reviewed-on: https://go-review.googlesource.com/c/140597
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Lazy mcache flushing (golang.org/cl/134783) introduced a second value
for sweepgen that indicates a span has been swept. I missed adding
this case to a sanity check in sweepone, so it can now panic if it
finds a non-in-use spans that's been swept *and* put in an mcache.
Fix this by adding the second sweepgen case to this check.
Fixes#27997.
Change-Id: I568d9f2cc8923396ca897a37d154cd2c859c7bef
Reviewed-on: https://go-review.googlesource.com/c/140697
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Since atomic.Or8 is now an intrinsic (and has been for some time),
markBits.setMarked is inlinable. Undo the manual inlining of it.
Change-Id: I8e37ccf0851ad1d3088d9c8ae0f6f0c439d7eb2d
Reviewed-on: https://go-review.googlesource.com/c/138659
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
freeSpan currently takes a mysterious "acct int32" argument. This is
really just a boolean and actually just needs to match the "large"
argument to alloc in order to balance out accounting.
To make this clearer, replace acct with a "large bool" argument that
must match the call to mheap.alloc.
Change-Id: Ibc81faefdf9f0583114e1953fcfb362e9c3c76de
Reviewed-on: https://go-review.googlesource.com/c/138655
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
* Rewrite the flushing code to not use a persistent goroutine, which
also simplifies testing.
* Define the meaning of a negative flush interval. Its meaning doesn't
change, but now it's locked in, and then we can use it to optimize
the performance of the non-buffered case to avoid use of an AfterFunc.
* Support (internal-only) special casing of FlushInterval values per
request/response.
* For now, treat Server-Sent Event responses as unbuffered. (or rather,
immediately flushed from the buffer per-write)
Fixes#27816
Change-Id: Ie0f975c997daa3db539504137c741a96d7022665
Reviewed-on: https://go-review.googlesource.com/c/137335
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
According to https://tools.ietf.org/html/rfc6962#section-3.3, the SCT
must be at least one byte long. The parsing code correctly checks for
this condition, but rarely the test does generate an empty SCT.
Change-Id: If36a34985b4470a5a9f96affc159195c04f6bfad
Reviewed-on: https://go-review.googlesource.com/c/129755
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
BSFQ/BSRQ/BSFL/BSRL/SQRTSD have similar logic in amd64's assembly
generator. This CL combines them together while does not impact
generated amd64 code. The total size of
pkg/linux_amd64/cmd/compile/internal decreases about 1.8KB.
Change-Id: I5f3210c5178c20ac9108877c69f17234baf5b6b7
Reviewed-on: https://go-review.googlesource.com/c/140438
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Change-Id: Ie5b2ef0087dbc7b8191de8c8b4190396631e3c7f
Reviewed-on: https://go-review.googlesource.com/c/137215
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The commit 0e4c013 changed the syscall package so it uses the
asynchronous functions of Node.js's fs module.
This commit adapts the stubs of the fs module which are used when using
a browser instead of Node.js.
Fixes#28068.
Change-Id: Ic3a6a8aebb0db06402383bc2fea7642a4501e02c
Reviewed-on: https://go-review.googlesource.com/c/140537
Reviewed-by: Agniva De Sarker <agniva.quicksilver@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The spec used the term "conversion" somewhat indiscriminately for
explicit conversions that appear literally in the source, and implicit
conversions that are implied by the context of an expression.
Be clearer about it by defining the terms.
Also, state that integer to string conversions of the form string(x)
are never implicit. This clarifies situations where implicit conversions
might require an integer to change to a string (but don't and never have
done so). See line 3948.
Fixes#26313.
Change-Id: I8939466df6b5950933ae7c987662ef9f88827fda
Reviewed-on: https://go-review.googlesource.com/c/139099
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Similarly to CL 138676, skip TestUnixConnLocalWindows on windows/arm.
Fixes#28061
Change-Id: I2270d2f9d268e85ea567be0c0c37c48e4d482282
Reviewed-on: https://go-review.googlesource.com/c/140397
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Simplify `!(x <= y)` to `x > y` and `!(x >= y)` to `x < y` where x,y are not defined as float.
Change-Id: Id1e5b518395d97e75f96aa4ac5d6c0ee990c0e7d
Reviewed-on: https://go-review.googlesource.com/c/140337
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Mikio Hara <mikioh.mikioh@gmail.com>
This was missed as part of adding a top-level VARDEF
for stack tracing (CL 134156).
Fixes#28055
Change-Id: Id14748dfccb119197d788867d2ec6a3b3c9835cf
Reviewed-on: https://go-review.googlesource.com/c/140304
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com>
This change makes stateEndTop use isSpace instead of specifically
recreating the same functionality.
Change-Id: I81f8f51682e46e7f8e2b9fed423a968457200625
Reviewed-on: https://go-review.googlesource.com/c/121797
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This CL combines similar code in amd64's assembly generator. The
total size of pkg/linux_amd64/cmd/compile/ decreases about 4.5KB,
while the generated amd64 code is not affected.
Change-Id: I4cdbdd22bde8857aafdc29b47fa100a906fa1598
Reviewed-on: https://go-review.googlesource.com/c/140298
Run-TryBot: Ben Shi <powerman1st@163.com>
Reviewed-by: Keith Randall <khr@golang.org>
This CL combines similar rules together via regular expression,
while does not impact generated 386 code.
Change-Id: I2b26e7fc6adffa0fa10eeb04a4f3a76ddabc760b
Reviewed-on: https://go-review.googlesource.com/c/140297
Reviewed-by: Keith Randall <khr@golang.org>
This CL combines several rules together via regular expression,
but won't impact generated 386 code.
Change-Id: I354006fe801fc952e3a9431cae63229922c9ba48
Reviewed-on: https://go-review.googlesource.com/c/139957
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
The indexed MOVload and MOVstore have similar logic, and this CL
combine them together. The total size of pkg/linux_386/cmd/compile/
decreases about 4KB.
Change-Id: I06236a3542aaa3dfc113c49fe4c69d209e018dfe
Reviewed-on: https://go-review.googlesource.com/c/139958
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This reverts commit d217004061.
Reason for revert: It broke all the darwin builders; it's also not
obvious how the weird darwin versions (900, 1000) relate to the > 3.9
requisite, so I'm not sure how to decide about skipping in a robust
way. It's better to revert the check for now.
Fixes#28028
Change-Id: Ibbcb7bf7cd2136e0851ebd097a2bc4dec9f0ee18
Reviewed-on: https://go-review.googlesource.com/c/140217
Reviewed-by: Keith Randall <khr@golang.org>
Updates the route package to git rev 146acd2 for:
- 146acd2 don't run NET_RT_IFLIST vs. NET_RT_IFLISTL test in 386 emulation (again)
Change-Id: I24de1eb31b2ca0e24cb9ab1648f7a71b5067cf97
Reviewed-on: https://go-review.googlesource.com/c/139937
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This is similar to CL 136816 for x/sys/unix, changing the FreeBSD ABI to use 64-bit inodes in
Stat_t, Statfs_t, and Dirent types.
The changes are forward compatible, that is FreeBSD 10.x, 11.x continue to use their current sysnum numbers.
The affected types are converted to the new layout (with some overhead).
Thus the same statically linked binary should work using the native sysnums (without any conversion) on FreeBSD 12.
Breaking API changes in package syscall are:
Mknod takes a uint64 (C dev_t) instead of int.
Stat_t: Dev, Ino, Nlink, Rdev, Gen became uint64.
Atimespec, Mtimespec, Ctimespec, Birthtimespec renamed to Atim, Mtim, Ctim, Birthtim respectively.
Statfs_t: Mntonname and Mntfromname changed from [88]int8 to [1024]int8 arrays.
Dirent: Fileno became uint64, Namlen uint16 and an additional field Off int64 (currently unused) was added.
The following commands were run to generate ztypes_* and zsyscall_* on FreeBSD-12.0-ALPHA6 systems (GOARCH=386 were run on the same amd64 host):
GOOS=freebsd GOARCH=amd64 ./mksyscall.pl -tags freebsd,amd64 syscall_bsd.go syscall_freebsd.go syscall_freebsd_amd64.go |gofmt >zsyscall_freebsd_amd64.go
GOOS=freebsd GOARCH=amd64 go tool cgo -godefs types_freebsd.go | GOOS=freebsd GOARCH=amd64 go run mkpost.go >ztypes_freebsd_amd64.go
GOOS=freebsd GOARCH=386 ./mksyscall.pl -l32 -tags freebsd,386 syscall_bsd.go syscall_freebsd.go syscall_freebsd_386.go |gofmt >zsyscall_freebsd_386.go
GOOS=freebsd GOARCH=386 go tool cgo -godefs types_freebsd.go | GOOS=freebsd GOARCH=386 go run mkpost.go >ztypes_freebsd_386.go
GOOS=freebsd GOARCH=arm ./mksyscall.pl -l32 -arm -tags freebsd,arm syscall_bsd.go syscall_freebsd.go syscall_freebsd_arm.go |gofmt >zsyscall_freebsd_arm.go
GOOS=freebsd GOARCH=arm go tool cgo -godefs -- -fsigned-char types_freebsd.go | GOOS=freebsd GOARCH=arm go run mkpost.go >ztypes_freebsd_arm.go
The Kevent struct was changed to use the FREEBSD_COMPAT11 version always (requiring the COMPAT_FREEBSD11 kernel option FreeBSD-12, this is the default).
The definitions of ifData were not updated, their functionality in has have been replaced by vendored golang.org/x/net/route.
freebsdVersion initialization was dropped from init() in favor of a sync.Once based wrapper - supportsABI().
Updates #22448.
Change-Id: I359b756e2849c036d7ed7f75dbd6ec836e0b90b4
Reviewed-on: https://go-review.googlesource.com/c/138595
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
runtime.armArch is unused on linux/arm since CL 93637. The new code in
runtime/internal/atomic (added by CL 111315) only checks runtime.goarm.
Change-Id: Ic097ee6750e39abb20f45770a1c7c2d925f02408
Reviewed-on: https://go-review.googlesource.com/c/140077
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
1) Scopes do have a comment field for documentation (debugging output).
No need to do anything extra.
2) The testcase in expr3.src has ok error messages. Enabled.
Change-Id: Ic1a03bfec0a6a70d876aa6cfb936973abe58fe6c
Reviewed-on: https://go-review.googlesource.com/c/139902
Reviewed-by: Alan Donovan <adonovan@google.com>
This work-around is not needed anymore now that method
signatures are type-checked separately from their receiver
base types: no artificial cycles are introduced anymore
and so there is no need to artificially cut them.
Fixes#26854.
Change-Id: I2ef15ceeaa0b486f65f6cdc466d0cf06246c74d7
Reviewed-on: https://go-review.googlesource.com/c/139900
Reviewed-by: Alan Donovan <adonovan@google.com>
This work-around is not needed anymore now that method
signatures are type-checked separately from their receiver
base types: no artificial cycles are introduced anymore
and so there is no need to artificially cut them.
Updates #26124.
Change-Id: I9d50171f12dd8977116a5d3f63ac39a06b1cd492
Reviewed-on: https://go-review.googlesource.com/c/139899
Reviewed-by: Alan Donovan <adonovan@google.com>
As a side-effect we also get slightly clearer errors for some
pathological cyclic method declarations.
Fixes#23203.
Updates #26854.
Change-Id: I30bd6634ac6be26d3f4ef8c7b32e5c1bf76987dd
Reviewed-on: https://go-review.googlesource.com/c/139897
Reviewed-by: Alan Donovan <adonovan@google.com>
Remove assumption that methods associated to concrete (non-interface)
types have a fully set up signature. Such methods are found through
LookupFieldOrMethod or lookupMethod, or indexed method access from
a Named type. Make sure that the method's signature is type-checked
before use in those cases.
(MethodSets also hold methods but the type checker is not using
them but for internal verification. API clients will be using it
after all methods have been type-checked.)
Some functions such as MissingMethod may now have to type-check a
method and for that they need a *Checker. Add helper functions as
necessary to provide the additional (receiver) parameter but permit
it to be nil if the respective functions are invoked through the API
(at which point we know that all methods have a proper signature and
thus we don't need the delayed type-check).
Since all package-level objects eventually are type-checked through
the top-level loop in Checker.packageObjects we are guaranteed that
all methods will be type-checked as well.
Updates #23203.
Updates #26854.
Change-Id: I6e48f0016cefd498aa70b776e84a48215a9042c5
Reviewed-on: https://go-review.googlesource.com/c/139425
Reviewed-by: Alan Donovan <adonovan@google.com>
The prior CL prepared go/types for the situation where methods might
not have a type-checked signature when being looked up. The respective
adjustments to recvPtr were not correct (but because so far method
signatures are type-checked in time, the bug didn't manifest itself).
Updates #23203.
Updates #26854.
Change-Id: I796691d11e6aac84396bdef802ad30715755fcc6
Reviewed-on: https://go-review.googlesource.com/c/139721
Reviewed-by: Alan Donovan <adonovan@google.com>
The origin tagKey is just dirname if no tags input which will cause
pkgCache missmatch if other imported pkg explicit on GOARCH or GOOS
This CL will add GOOS and GOARCH to tagKey
Fixes#8425Fixes#21181
Change-Id: Ifc189cf6746d753ad7c7e5bb60621297fc0a4e35
Reviewed-on: https://go-review.googlesource.com/c/138315
Reviewed-by: Robert Griesemer <gri@golang.org>
The alloc_m documentation refers to concepts that don't exist (and
maybe never did?). alloc_m is also not the API entry point to span
allocation.
Hence, rewrite the documentation for alloc and alloc_m. While we're
here, document why alloc_m must run on the system stack and replace
alloc_m's hand-implemented system stack check with a go:systemstack
annotation.
Change-Id: I30e263d8e53c2774a6614e1b44df5464838cef09
Reviewed-on: https://go-review.googlesource.com/c/139459
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
.rel symbol type is sym.SELFROSECT, and that makes .rel written
into .rdata section. But .rel stores code - jump table used for
external C functions. So we have to mark whole .rdata section
as executable (IMAGE_SCN_MEM_EXECUTE), because of .rel presence
in it.
Move .rel into .text section, and make .rdata section non executable.
I also had to move code that adjusted the size of .rel symbol
before calling textaddress, otherwise textaddress would not
calculate size of .text section correctly.
Fixes#25926
Change-Id: I4962f5de7b367410154c8709adfcd8472de9ac1a
Reviewed-on: https://go-review.googlesource.com/c/125455
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
On wasm, pcln tables are indexed by "resumption point ID" instead of
by pc offset. When finding a deferreturn call, we must find the
associated resumption point ID for the deferreturn call.
Update #27518
Fixes wasm bug introduced in CL 134637.
Change-Id: I3d178a3f5203a06c0180a1aa2309bfb7f3014f0f
Reviewed-on: https://go-review.googlesource.com/c/139898
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This change disables the export-subst and export-ignore attributes when
creating zip files for modules. This is done to prevent the ziphash for
a given repo/revision from differing based on variables such as git
version or size of repo. The full rational for this change is detailed
here:
https://github.com/golang/go/issues/27153#issuecomment-420763082Fixes#27153
Change-Id: Ib33f525d91d2581fa0b5d26e70d29620c7e685e9
Reviewed-on: https://go-review.googlesource.com/c/135175
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
The TestLldbPython test is known to fail with very old lldb releases
(3.8 and older). Skip the test when the lldb found on the system is
too old.
Fixes#22299
Change-Id: I8f78d6c0d995118f806dae87f3f04a9726473116
Reviewed-on: https://go-review.googlesource.com/c/139397
Reviewed-by: Ian Lance Taylor <iant@golang.org>
goos: linux
goarch: amd64
pkg: math
name old time/op new time/op delta
Mod 64.7ns ± 2% 63.7ns ± 2% -1.52% (p=0.003 n=8+10)
Change-Id: I851bec0fd6c223dab73e4a680b7393d49e81a0e8
Reviewed-on: https://go-review.googlesource.com/c/85095
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
