Allows removing Func.{Enter,Exit}, which were only ever used to hold
at most one function call each.
Change-Id: I8b629c82e90bac3fcbe54db89900492406c7dca6
Reviewed-on: https://go-review.googlesource.com/c/go/+/528319
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Than McIntosh <thanm@google.com>
Also log verbose information when -test.v is set.
We need an arbitrary delay when checking that a signal is *not*
delivered, but when we expect the signal to arrive we don't need to
set an arbitrary limit on how long that can take.
Fixes#61264.
Change-Id: If3bbbf78e3c22694bf825d90d7ee9564ce8daedd
Reviewed-on: https://go-review.googlesource.com/c/go/+/509636
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Several methods return a (*types.Pkg, *types.Sym) pair instead of just
a *types.Sym, because we used to need to preserve the *types.Pkg for
certain types so that we could write out export data for go/types to
use (which exposes these through its APIs).
But now that we write export data from the types2 representation
directly, there's no need for the rest of the compiler to be
concerned about that.
Change-Id: I6ac81a6db71b8e0795ff2f33399b839871564eb7
Reviewed-on: https://go-review.googlesource.com/c/go/+/528416
Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
There's several copies of this function. We only need one.
While here, normalize so that we always declare parameters, and always
use the names ~pNN for params and ~rNN for results.
Change-Id: I49e90d3fd1820f3c07936227ed5cfefd75d49a1c
Reviewed-on: https://go-review.googlesource.com/c/go/+/528415
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Than McIntosh <thanm@google.com>
RegLoadMUIString is supported on Windows Vista and later, so this
should be safe to do unconditionally.
While here, also unconditionally use GetDynamicTimeZoneInformation
in syscall/windows/registry tests, since it's also supported on Windows
Vista and later.
Change-Id: Ifa32a81f4727d4810f2b9ccc814aa77a43513e59
Reviewed-on: https://go-review.googlesource.com/c/go/+/527595
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Reviewed-by: Bryan Mills <bcmills@google.com>
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Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
This CL clarifies the order of evaluation of the binary logical
operators, && and ||. The clarified semantics matches what cmd/compile
and x/tools/go/ssa already implement, and prohibit some optimizations
that are arguably allowed today but risk surprising users.
First, it specifies that the left operand is evaluated before the
right operand. This prohibits "(f() || true) && *p" from evaluating
"*p" before "f()".
Second, it specifies that binary logical operations are also ordered
lexically left-to-right with regard to function calls and receive
operations. This prohibits "h(*p || true || f(), g())" from evaluating
"*p" after "g()".
Finally, the "order of evaluation of [...] is not specified" wording
in the example is clarified to acknowledge that there are still some
other orderings that are implied lexically; e.g., x must be evaluated
and indexed before g(), and z now must be evaluated before h(). (Note:
Whether z is evaluated before or after f() remains unspecified, as
there's no lexical dependency.)
Change-Id: I9d316a7f1fbc83be663e116380a2cc7a4ace623d
Reviewed-on: https://go-review.googlesource.com/c/go/+/522938
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Add Request.PathValue and Request.SetPathValue,
and the fields on Request required to support them.
Populate those fields in ServeMux.ServeHTTP.
Updates #61410.
Change-Id: Ic88cb865b0d865a30d3b35ece8e0382c58ef67d1
Reviewed-on: https://go-review.googlesource.com/c/go/+/528355
Run-TryBot: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
If Cause is called on a non-standard Context, call ctx.Err.
Fixes#62582
Change-Id: Iac4ed93203eb5529f8839eb479b6ee2ee5ff6cbc
Reviewed-on: https://go-review.googlesource.com/c/go/+/527277
Reviewed-by: Bryan Mills <bcmills@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
As far as I can tell, some flakiness is unavoidable in tests
that race a large client request write against a server's response
when the server doesn't read the full request.
It does not appear to be possible to simultaneously ensure that
well-behaved clients see EOF instead of ECONNRESET and also prevent
misbehaving clients from consuming arbitrary server resources.
(See RFC 7230 §6.6 for more detail.)
Since there doesn't appear to be a way to cleanly eliminate
this source of flakiness, we can instead work around it:
we can allow the test to adjust the hard-coded delay if it
sees a plausibly-related failure, so that the test can retry
with a longer delay.
As a nice side benefit, this also allows the tests to run more quickly
in the typical case: since the test will retry in case of spurious
failures, we can start with an aggressively short delay, and only back
off to a longer one if it is really needed on the specific machine
running the test.
Fixes#57084.
Fixes#51104.
For #58398.
Change-Id: Ia4050679f0777e5eeba7670307a77d93cfce856f
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest-race,gotip-linux-amd64-race,gotip-windows-amd64-race
Reviewed-on: https://go-review.googlesource.com/c/go/+/527196
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Auto-Submit: Bryan Mills <bcmills@google.com>
Modify ServeMux to handle patterns with methods and wildcards.
Remove the map and list of patterns. Instead patterns
are registered and matched using a routing tree.
We also reorganize the code around "trailing-slash redirection,"
the feature whereby a trailing slash is added to a path
if it doesn't match an existing one. The existing code
checked the map of paths twice, but searching the tree
twice would be needlessly expensive. The rewrite
searches the tree once, and then again only if a
trailing-slash redirection is possible.
There are a few omitted features in this CL, indicated
with TODOs.
Change-Id: Ifaef59f6c8c7b7131dc4a5d0f101cc22887bdc74
Reviewed-on: https://go-review.googlesource.com/c/go/+/528039
Run-TryBot: Jonathan Amsterdam <jba@google.com>
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Reviewed-by: Damien Neil <dneil@google.com>
This reapplies CL 512155, which was previously reverted in CL 527337.
The race that prompted the revert should be fixed by CL 527820,
which will be submitted before this one.
For #36768.
Updates #62596.
Change-Id: I3c3cd92470254072901b6ef91c0ac52c8071e0a2
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-race,gotip-windows-amd64-race,gotip-windows-amd64-longtest
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- Ignore empty entries in PATH, like PowerShell does.
- If we resolve a path using an explicit relative entry in PATH,
treat it the same as we do for the implicit "." search path,
by allowing a later (absolute) PATH entry that resolves to the
same executable to return the absolute version of its path.
- If the requested path does not end with an extension matching
PATHEXT, return ErrNotFound (indicating that we potentially searched
for multiple alternatives and did not find one) instead of
ErrNotExist (which would imply that we know the exact intended path
but couldn't find it).
Fixes#61493.
Change-Id: I5b539d8616e3403825749d8eccf46725fa808a17
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If the -R flag (the segment alignment) is specified but the -T
flag (start address) is not, currently the default start address
may be under-aligned, and some math in the linker may be broken.
Round up the start address to align it.
Fixes#62064.
Change-Id: I3b98c9d0cf7d3cd944b9436a36808899d2e52572
Reviewed-on: https://go-review.googlesource.com/c/go/+/527822
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
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targetDeclFuncs was removed before CL 492436 was ever merged.
Change-Id: I1aafc28446ad23f63bcafc144b91f924dacd676e
Reviewed-on: https://go-review.googlesource.com/c/go/+/528176
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Auto-Submit: Michael Pratt <mpratt@google.com>
In the WebAssembly version of these operators we avoid using
a CAS loop since the Go wasm implementation is single-threaded.
A new test file has been added that has build tags in order to
only test this feature on implemented architectures.
This is part of a series of CLs aimed to add the primitives
for And/Or atomic operations that will be used by the public
sync/atomic apis.
For #61395
Change-Id: Ic67ffefc9cfb626915ea86b6b21b500117710327
GitHub-Last-Rev: bbec3a5f35
GitHub-Pull-Request: golang/go#62517
Reviewed-on: https://go-review.googlesource.com/c/go/+/526656
Run-TryBot: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
People may not know the details of a pointer, this makes the
runtime.Pinner.Pin API easier to use.
Fixes#62356
Change-Id: I071df44e01320648a6df5e2a1e65afd6ea52e274
GitHub-Last-Rev: 560a581b63
GitHub-Pull-Request: golang/go#62549
Reviewed-on: https://go-review.googlesource.com/c/go/+/527156
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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False sharing observed inside mheap struct, between arenas and preceding
variables.Pad mheap.arenas and preceding variables to avoid false sharing
This false-sharing getting worse and impact performance on multi core
system and frequent memory allocate workloads. While running MinIO On a
2 socket system(56 Core per socket) and GOGC=1000, we observed HITM>8%
(perf c2c) on this cacheline.
After resolve this false-sharing issue, we got performance 17% improved.
Improvement verified on MinIO:
Server: https://github.com/minio/minio
Client: https://github.com/minio/warp
Config: Single node MinIO Server with 6 ramdisk, without TLS enabled,
Run warp GET request, 128KB object and 512 concurrent
Fixes#62472
Signed-off-by: Li Gang<gang.g.li@intel.com>
Change-Id: I9a4a3c97f5bc8cd014c627f92d59d9187ebaaab5
Reviewed-on: https://go-review.googlesource.com/c/go/+/525955
Reviewed-by: Heschi Kreinick <heschi@google.com>
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Auto-Submit: Michael Knyszek <mknyszek@google.com>
This tweaks the documentation for http.Client
to use the list syntax introduced in Go 1.19.
Change-Id: I1f7e0256c13f57e04fc76e5e2362608c8f9f524d
GitHub-Last-Rev: 11d384f9ad
GitHub-Pull-Request: golang/go#62574
Reviewed-on: https://go-review.googlesource.com/c/go/+/527335
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Auto-Submit: Ian Lance Taylor <iant@golang.org>
While strings.LastIndex{,Byte} cannot be used in package path, the
respective internal/bytealg function can be used.
Change-Id: If0ecc36484308221f50875c8609913f6f2887fba
Reviewed-on: https://go-review.googlesource.com/c/go/+/527855
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Incorrect window resizing led to checksum error and invalid result.
To demonstrate the problem bigData must be a bit bigger, 3x is enough.
This change fixes window resizing, increases bigData size and decouples
TestLargeXXHash from bigData because it uses hardcoded hash value.
Change-Id: I50f74315b083f42e1ccd7ab2093e084f44631bb6
GitHub-Last-Rev: dbc90ba7a5
GitHub-Pull-Request: golang/go#62543
Reviewed-on: https://go-review.googlesource.com/c/go/+/527115
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Reviewed-by: Ian Lance Taylor <iant@google.com>
types.Object only exists to avoid a circular dependency between
package types and ir.
Change-Id: I35196aff765d6977ca1e69fe482edbc987c381c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/527340
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Now that types can self-report how many registers they need, it's much
easier to determine whether a parameter will fit into the available
registers: simply compare the number of registers needed against the
number of registers still available.
This also eliminates the need for the NumParamRegs cache.
Also, the new code in NumParamRegs is stricter in only allowing it to
be called on types that can actually be passed in registers, which
requires a test to be corrected for that. While here, change mkstruct
to a variadic function, so the call sites require less boilerplate.
Change-Id: Iebe1a0456a8053a10e551e5da796014e5b1b695b
Reviewed-on: https://go-review.googlesource.com/c/go/+/527339
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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To be used by package abi in the following CL.
Change-Id: Ic2470069e65f8d9b01ec161c28e5b86dca2ec141
Reviewed-on: https://go-review.googlesource.com/c/go/+/527338
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Otherwise the setrlimit1 wrapper would be generated using the inexistent
SYS_GETRLIMIT1 syscall number.
This was likely missed in CL 476097.
For #476097
Change-Id: I5cfa2ebacb58aeeaddd3db3639a45cf368fbe0ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/527555
Reviewed-by: Bryan Mills <bcmills@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
- Use the test binary itself for printing paths instead of building a
separate binary and running it through additional subprocesses.
- Factor out a common chdir helper.
- Use t.Setenv where appropriate.
- Reduce indirection in test helpers.
- Set NoDefaultCurrentDirectoryInExePath consistently in the
environment.
Also add a test case demonstrating an interesting behavior for
relative paths that may interact with #62596.
Fixes#62594.
For #62596.
Change-Id: I19b9325034edf78cd0ca747594476cd7432bb451
Reviewed-on: https://go-review.googlesource.com/c/go/+/528035
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
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For ELF targets, the code in the go linker that generates the
".shstrtab" section was using a loader symbol to accumulate the
contents of the section, then setting the section type to
sym.SELFROSECT. This resulted in a section whose offset indicated that
it fell into a loadable ELF segment, which is not how the .shstrtab is
supposed to work (it should be outside of all loadable segments,
similar to .strtab and .symtab). The peculiar .shstrtab caused
confusion in third party tools that operate on ELF files, notably
llvm-strip.
This patch rewrites the .shstrtab generation code to avoid using a
loader.Symbol and instead accumulate the contents of the section into
a regular byte slice, then emit the section's data in the same way
that .strtab is handled.
Fixes#62600.
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Change-Id: Ie54020d7b2d779d3ac9f5465fd505217d0681f79
Reviewed-on: https://go-review.googlesource.com/c/go/+/528036
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Change-Id: Ifb28dd08faa59d9186a4a2337aab0c536d9a885e
Change-Id: Ifb28dd08faa59d9186a4a2337aab0c536d9a885e
GitHub-Last-Rev: dba95de0fb
GitHub-Pull-Request: golang/go#62610
Reviewed-on: https://go-review.googlesource.com/c/go/+/527956
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The method AddFS can be used to add the contents of a fs.FS filesystem
to a tar archive. This method walks the directory tree starting at the root
of the filesystem and adds each file to the archive.
Fixes#58000
Change-Id: I0e6abac76b76bc5d95b74b7e5b37634ce3f76c85
GitHub-Last-Rev: 11a62bfd7e
GitHub-Pull-Request: golang/go#61599
Reviewed-on: https://go-review.googlesource.com/c/go/+/513316
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
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Even better is slices.BinarySearch, leave a TODO to update to that when possible.
Change-Id: Ie1ec75c34c0329c536725b45e520693790f0520e
GitHub-Last-Rev: 6cd811b186
GitHub-Pull-Request: golang/go#62585
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sparse conditional constant propagation can discover optimization
opportunities that cannot be found by just combining constant folding
and constant propagation and dead code elimination separately.
This is a re-submit of PR#59575, which fix a broken dominance relationship caught by ssacheck
Updates https://github.com/golang/go/issues/59399
Change-Id: I57482dee38f8e80a610aed4f64295e60c38b7a47
GitHub-Last-Rev: 830016f24e
GitHub-Pull-Request: golang/go#60469
Reviewed-on: https://go-review.googlesource.com/c/go/+/498795
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Reviewed-by: Keith Randall <khr@golang.org>
aix requires that _XOPEN_SOURCE_EXTENDED is set to a number, not simply
defined.
For #62440.
Change-Id: Iee221d558b5ad5b8dcb874d4d9fdf94593f7d0a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/527797
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This CL adds a new 'Tips' section to the cmd/compile README.
The primary intent is to help new-ish contributors.
It includes some basics on getting started, testing changes,
viewing coverage, juggling different compiler versions,
some links to additional tools, and so on.
Updates #30074
Change-Id: I393bf1137db9d2bb851f7e254b08455273ccad8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/503895
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Reviewed-by: Keith Randall <khr@google.com>
Saw this failing on windows like this:
--- FAIL: TestRenameCaseDifference (2.96s)
--- FAIL: TestRenameCaseDifference/dir (1.64s)
testing.go:1226: TempDir RemoveAll cleanup: remove C:\Users\gopher\AppData\Local\Temp\1\TestRenameCaseDifferencedir1375918868\001: The process cannot access the file because it is being used by another process.
--- FAIL: TestRenameCaseDifference/file (1.32s)
testing.go:1226: TempDir RemoveAll cleanup: remove C:\Users\gopher\AppData\Local\Temp\1\TestRenameCaseDifferencefile3272269402\001: The process cannot access the file because it is being used by another process.
FAIL
The reason might be the directory fd is not closed. This may be
mitigated by retries in removeAll function from testing package,
but apparently it does not succeed all the time.
A link to the failed run which made me look into this: https://ci.chromium.org/ui/p/golang/builders/try/gotip-windows-386/b8770439049015378129/overview
Change-Id: Ibebe94958d1aef8d1d0eca8a969675708cd27a7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/527175
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Reviewed-by: Rob Pike <r@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This is a follow up of CL 526496.
Change-Id: I9f351951bf975e31befd36b9c951d195d2f8f9f7
GitHub-Last-Rev: 4307adafbf
GitHub-Pull-Request: golang/go#62590
Reviewed-on: https://go-review.googlesource.com/c/go/+/527576
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This CL implements a decision tree for efficient routing.
The tree holds all the registered patterns. To match
a request, we walk the tree looking for a match.
Change-Id: I7ed1cdf585fc95b73ef5ca2f942f278100a90583
Reviewed-on: https://go-review.googlesource.com/c/go/+/527315
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Jonathan Amsterdam <jba@google.com>
This constructs a zero value of any type, which helps address some
corner case scenarios.
It should also eventually handle the predeclared "zero" value, at
least as currently implemented in go.dev/cl/520336.
For #61372.
Change-Id: I3a86a94fd8fa388c9c6bf281da8aa532b3da00fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/527696
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
The unified export data format doesn't rely on embedding version
numbers in local variable names anymore, so there's no need to look
for them.
While here, simplify the checking for "~r" or "~b" to just "~",
because the next commit is going to eliminate "~b", but introduce
"~p".
Change-Id: I3ac73150ee561c66356a0c4aee5290b44a4893ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/527695
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
When two callees have equal weight, we need to sort by another criteria
to ensure that we get stable output.
Note that this is only for the CallStat debug JSON output. The actual
callee selection already does this secondary sort in
findHotConcreteCallee.
Change-Id: I0de105623c5ccc793ca6f5799ea25e57bc286722
Reviewed-on: https://go-review.googlesource.com/c/go/+/527796
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
If _XOPEN_SOURCE is defined, then netbsd also requires
_XOPEN_SOURCE_EXTENDED to define stack_t.
For #62440.
Change-Id: Ib05658c3ca7fae1f6b051566e713ce7bc7c037a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/527775
Run-TryBot: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
The code meant to check if it is the last section, which is
i === len(md.textsectmap)-1. The -1 was missing.
Change-Id: Ifbb9e40df730abe3bec20fde5f56f5c75dfd9e8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/527795
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Our goal for the new ServeMux patterns is to match the routing
performance of the existing ServeMux patterns. To achieve that
we needed to optimize lookup for small maps.
This CL introduces a simple data structure called a mapping that
optimizes lookup by using a slice for small collections of key-value
pairs, switching to a map when the collection gets large.
Mappings are a core part of the routing algorithm, which uses a
decision tree to match path elements. The children of a tree node are
held in a mapping.
Change-Id: I923b3ad1376ace2c3e3421aa9b802ad12d47c871
Reviewed-on: https://go-review.googlesource.com/c/go/+/526617
Run-TryBot: Jonathan Amsterdam <jba@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Eli Bendersky <eliben@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Add the conflictsWith method, which determines whether two patterns
conflict with each other.
Updates #61410.
Change-Id: Id4f9a471dc9d0420d927a68d2864128a096b74f4
Reviewed-on: https://go-review.googlesource.com/c/go/+/526616
Run-TryBot: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Eli Bendersky <eliben@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
[This is a redo of CL 525455 with the test fixed on darwin by defining
_XOPEN_SOURCE, and disabled with android, musl, and openbsd, which do
not provide getcontext.]
Since CL 495855, Ms are cached for C threads calling into Go, including
the stack bounds of the system stack.
Some C libraries (e.g., coroutine libraries) do manual stack management
and may change stacks between calls to Go on the same thread.
Changing the stack if there is more Go up the stack would be
problematic. But if the calls are completely independent there is no
particular reason for Go to care about the changing stack boundary.
Thus, this CL allows the stack bounds to change in such cases. The
primary downside here (besides additional complexity) is that normal
systems that do not manipulate the stack may not notice unintentional
stack corruption as quickly as before.
Note that callbackUpdateSystemStack is written to be usable for the
initial setup in needm as well as updating the stack in cgocallbackg.
Fixes#62440.
For #62130.
Change-Id: I0fe0134f865932bbaff1fc0da377c35c013bd768
Reviewed-on: https://go-review.googlesource.com/c/go/+/527715
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This patch fixes an inconsistency in compiler flag handling introduced
accidentally in CL 521699. In the compiler we have both base.Flag.N
(which records whether the user has supplied the "-N" flag to disable
optimization) and base.Ctxt.Flag_optimize (which tracks whether
optimization is turned on). In this case Flag.N was updated without a
corresponding change to Ctxt.Flag_optimize, which led to problems with
DWARF generation for the runtime.
This CL doesn't include a regression test; a test will be added later
in the x/debug repo in a subsequent CL.
Updates #62523.
Change-Id: I0c383bb43ec0a0e7c12e7e2852c0590731416d6f
Reviewed-on: https://go-review.googlesource.com/c/go/+/527319
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Alessandro Arzilli <alessandro.arzilli@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This CL fixes the links to Microsoft documentation in the Go source
code. Some links were broken and some others were outdated.
Change-Id: I4c3bcd3aa3c07a31be1b7f94c25339dcc2e771e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/527556
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Run-TryBot: Quim Muntal <quimmuntal@gmail.com>
Auto-Submit: Quim Muntal <quimmuntal@gmail.com>
