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Commit Graph

57867 Commits

Author SHA1 Message Date
Joel Sing
13d5ca42fd cmd/internal/obj/riscv: simplify instructionsForMOV
Rather than handling shift based scaling in two locations, rework logic
so there is a single exit path.

Change-Id: I832b4932d53183736050059a11019ced08281b3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/523455
Reviewed-by: M Zhuo <mzh@golangcn.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2023-09-08 04:20:37 +00:00
Ian Lance Taylor
834a6f9a33 cmd/api: don't try to parse JSON from stderr of go list
Just send the go list stderr to our stderr.

Change-Id: Iacda573bbe7accbcecb6a957e5d42b55afd10c58
Reviewed-on: https://go-review.googlesource.com/c/go/+/526775
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2023-09-07 23:30:03 +00:00
qmuntal
1d538f198d runtime: support nil libcall.args when calling stdcall on Windows
Having to pass a dummy pointer to the libcall.args field is a bit
annoying. This change allows nil to be passed instead.

windows/arm and windows/arm64 already support nil libcall.args.

Change-Id: I07a2bdb7d1f76b13d125397ff5177337c43536a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/526016
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
2023-09-07 21:16:03 +00:00
Tobias Klauser
3a124de515 syscall: remove unused ptracePtr on darwin
ptracePtr was introduced in CL 470299 for darwin but it's not used on
this platform. Also, the argument types for addr and data were swapped
in the generated ptrace1Ptr (probably because the change was not
generated but done manually).

For #58387

Change-Id: I429ab0c741e19020d98729c34efabce1d9003f56
Reviewed-on: https://go-review.googlesource.com/c/go/+/526475
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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2023-09-07 21:07:58 +00:00
limeidan
02d581ef53 cmd/link/internal/loong64: correct the glibc dynamic linker path.
Ref: https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html#_program_interpreter_path

Change-Id: Ic2598110cc091362cb09f877b6b86433cacf32c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/526535
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2023-09-07 20:05:07 +00:00
Daniel Martí
65f245af49 encoding/xml: use reflect.Value.Bytes on addressable arrays
Since #47066 was accepted and implemented,
reflect.Value.Bytes can be called directly on addressable arrays,
so there is no longer a need to go through a slice first.

Change-Id: I04d50ddb1b38e7a37fee3dc8be1bd03b22a06a1c
Reviewed-on: https://go-review.googlesource.com/c/go/+/526357
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2023-09-07 19:38:51 +00:00
Paul E. Murphy
d80f3966b8 cmd/internal/obj/ppc64: do not assemble non-constant rotate RLWMI
Unlike RLWNM, the ISA only supports an immediate rotate operand.

Update optab and opirrr to avoid quietly assembling this insn.

Change-Id: I1472a431cb8a870d55d5fff79ab905c4c459f630
Reviewed-on: https://go-review.googlesource.com/c/go/+/449835
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
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2023-09-07 19:20:03 +00:00
Kir Kolyshkin
2b46cffe57 syscall: improve linux SysProcAttr documentation
The SysProcAttr is OS-specific anyway, so it makes little sense to say
that some fields are Linux-specific (they all are anyway).

While at it, make sure to use complete sentences (add missing periods).

Change-Id: Ic0afe3920c2561fd9a657f4edab21939a8f56d57
Reviewed-on: https://go-review.googlesource.com/c/go/+/525395
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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2023-09-07 19:17:23 +00:00
Pascal S. de Kloe
0bbd273e97 cmd/doc: print bugs with -all flag
Includes cleanup and deduplication.

fixes: #33970

Change-Id: I7e84b3e5c8fb9c560cf0a1f8b7cbb7a6977666aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/511935
Reviewed-by: Rob Pike <r@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2023-09-07 19:16:55 +00:00
Kir Kolyshkin
da7ee57f40 syscall: add support to get pidfd from ForkExec on Linux
Add PidFD support, so that if the PidFD pointer in SysProcAttr is not
nil, ForkExec (and thus all its users) obtains a pidfd from the kernel
during clone(), and writes the result (or -1, if the functionality
is not supported by the kernel) into *PidFD.

The functionality to get pidfd is implemented for both clone3 and clone.
For the latter, an extra argument to rawVforkSyscall is needed, thus the
change in asm files.

Add a trivial test case checking the obtained pidfd can be used to send
a signal to a process, using pidfd_send_signal. To test clone3 code path,
add a flag available to tests only.

Updates #51246.

Change-Id: I2212b69e1a657163c31b4a6245b076bc495777a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/520266
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2023-09-07 19:11:15 +00:00
Jes Cok
584d646559 encoding/gob: fix typo in comment for decAlloc
Change-Id: I89c607ee40358d6d650ba0ea1f05ce7d1df698bd
GitHub-Last-Rev: e78a371180
GitHub-Pull-Request: golang/go#62319
Reviewed-on: https://go-review.googlesource.com/c/go/+/523376
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: qiulaidongfeng <2645477756@qq.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Rob Pike <r@golang.org>
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2023-09-07 19:10:23 +00:00
Jes Cok
9a9aa6e238 encoding/gob: make comment more idiomatic for *Encoder.writer
Change-Id: I89a4d7f4af8dfb67a35647283be6c1d2965595f5
GitHub-Last-Rev: f7c11c156c
GitHub-Pull-Request: golang/go#62389
Reviewed-on: https://go-review.googlesource.com/c/go/+/524735
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
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2023-09-07 19:09:56 +00:00
Jes Cok
96fe257a42 encoding/gob: swap 'err, i' to correct verbs in decUint8Slice
Change-Id: I76b2dd45179f65e9ed4f1d0f597ca59e49b59a85
GitHub-Last-Rev: b4171e6b83
GitHub-Pull-Request: golang/go#62374
Reviewed-on: https://go-review.googlesource.com/c/go/+/524356
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2023-09-07 19:09:54 +00:00
Jes Cok
ac2ec69e19 all: use io.{SeekStart, SeekCurrent, SeekEnd}
Currently we include these symbols in bootstrap code.

Change-Id: I19b504237b0344f0e87cda0fbe651811c72daba1
GitHub-Last-Rev: 5134baec38
GitHub-Pull-Request: golang/go#62368
Reviewed-on: https://go-review.googlesource.com/c/go/+/524258
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2023-09-07 19:06:17 +00:00
qmuntal
4beb33018b runtime: remove slow time compatibility hacks for wine
This reapplies CL 191759, which was reverted in CL 192622.

Wine fixed the compatibility issue more than 3 years
ago, in version 5.10 (see [1]). We no longer have to keep the compatibility hack on our side.

Updates #34021

[1]: 1ae1088964

Change-Id: I3b77701d01fdf58fbf350321fc0a957c0f247d32
Reviewed-on: https://go-review.googlesource.com/c/go/+/526358
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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2023-09-07 17:19:45 +00:00
Andy Pan
31c1f4a611 log/slog: use the general regex expression of datetime in TestPanics
When I added this test in CL 514135, I missed the timeRE,
we should use it to make this test more precise.

Change-Id: I486f8e8bbbc3a17166107ef361d242ddf4ea2928
Reviewed-on: https://go-review.googlesource.com/c/go/+/525556
Run-TryBot: Andy Pan <panjf2000@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
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2023-09-07 17:11:06 +00:00
qiulaidongfeng
a35bb44adc sync: deemphasize goroutines in RWMutex documentation
Fixes #41555

Change-Id: I46b9535b1687d481d2ac76296e8ba7de26d6e2e2

Change-Id: I46b9535b1687d481d2ac76296e8ba7de26d6e2e2
GitHub-Last-Rev: 38af46c189
GitHub-Pull-Request: golang/go#61977
Reviewed-on: https://go-review.googlesource.com/c/go/+/518859
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
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Auto-Submit: Bryan Mills <bcmills@google.com>
2023-09-07 16:18:47 +00:00
Tobias Klauser
dc6513b89f net: remove unused _C_GoString
It's unused since CL 466335.

Change-Id: I2750f478bd2a1cde270a6273551e1434cb38b5ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/526076
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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2023-09-07 16:10:42 +00:00
Michael Anthony Knyszek
d9a4b24a17 runtime: always lock OS thread in debugcall
Right now debuggers like Delve rely on the new goroutine created to run
a debugcall function to run on the same thread it started on, up until
it hits itself with a SIGINT as part of the debugcall protocol.

That's all well and good, except debugCallWrap1 isn't particularly
careful about not growing the stack. For example, if the new goroutine
happens to have a stale preempt flag, then it's possible a stack growth
will cause a roundtrip into the scheduler, possibly causing the
goroutine to switch to another thread.

Previous attempts to just be more careful around debugCallWrap1 were
helpful, but insufficient. This change takes everything a step further
and always locks the debug call goroutine and the new goroutine it
creates to the OS thread.

For #61732.

Change-Id: I038f3a4df30072833e27e6a5a1ec01806a32891f
Reviewed-on: https://go-review.googlesource.com/c/go/+/515637
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Alessandro Arzilli <alessandro.arzilli@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2023-09-07 15:25:07 +00:00
Keith Randall
fb5bdb4cc9 cmd/compile: absorb InvertFlags into Noov comparisons
Unfortunately, there isn't a single op that provides the resulting
computation.
At least, I couldn't find one.

Fixes #62469

Change-Id: I236f3965b827aaeb3d70ef9fe89be66b116494f5
Reviewed-on: https://go-review.googlesource.com/c/go/+/526276
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@google.com>
2023-09-07 15:14:39 +00:00
Matthew Dempsky
0725410df5 cmd/compile/internal/inline/inlheur: remove ConstExpr assumption
OLITERAL isn't always ConstExpr. It can also be BasicLit or Name.

Change-Id: I44d595830f9e206eccf6fb37bd47ddf957db0866
Reviewed-on: https://go-review.googlesource.com/c/go/+/526277
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
2023-09-07 15:10:40 +00:00
Matthew Dempsky
ae09ca6c0f cmd/compile/internal/ir: simplify printing of OLITERALs
This formatting used to be relevant to user error diagnostics and
(much earlier) even to the old textual export data format, but now
it's only relevant to backend debugging. So we can simplify a lot,
adjusting a few test expectations accordingly.

Change-Id: Ibe8e029284ce6150bfa24ef794d8d9eff66dbdea
Reviewed-on: https://go-review.googlesource.com/c/go/+/526375
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2023-09-07 15:10:10 +00:00
Than McIntosh
660620dd45 cmd/link: avoid deadcode of global map vars for programs using plugins
If a program imports the plugin package, the mechanisms in place for
detecting and deleting unused global map variables are no longer safe,
since it's possibly for a given global map var to be unreferenced in
the main program but referenced by a plugin. This patch changes the
linker to test for plugin use and to avoid removing any unused global
map variables if the main program could possibly load up a plugin.

Fixes #62430.

Change-Id: Ie00b18b681cb0d259e3c859ac947ade5778cd6c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/526115
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2023-09-07 13:18:51 +00:00
thepudds
3466e57354 fmt: avoid reflect.Value.Slice to help escape analysis
This is part of a series of CLs that aim to reduce how often
interface arguments escape for the print functions in fmt.

Prior to this change, one reason arguments escape is because
printValue calls reflect.Value.Slice, which causes its
value argument to escape (though at this CL, that is
shrouded in the fmt escape analysis logs by other
printValue escape reasons).

This CL avoids that usage by calling f.Bytes instead,
which is possible because we know f is a slice of bytes
or an addressable array of bytes.

Arguments still escape for other reasons.

Change-Id: Ic3f064117a364007e1dd3197cef9d641abbf784a
Reviewed-on: https://go-review.googlesource.com/c/go/+/524940
TryBot-Result: Gopher Robot <gobot@golang.org>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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2023-09-07 01:59:23 +00:00
thepudds
a2f28a4841 fmt: avoid reflect.Value.Pointer to help escape analysis
This is part of a series of CLs that aim to reduce how often
interface arguments escape for the print functions in fmt.

Prior to this change, one reason arguments escape is because
fmtPointer calls reflect.Value.Pointer:

./print.go:551:39: parameter value leaks to <heap> for (*pp).fmtPointer with derefs=0:
./print.go:551:39:   flow: <heap> ← value:
./print.go:551:39:     from reflect.Value.Pointer(value) (call parameter) at ./print.go:555:20

printValue also has its value argument escape for this reason,
among others.

This CL changes those uses to reflect.Value.UnsafePointer instead,
which does not cause an escape.

Arguments still escape for other reasons.

Change-Id: I81c4f737f11fe835c5ccb122caee40a39b553451
Reviewed-on: https://go-review.googlesource.com/c/go/+/524939
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2023-09-07 01:47:02 +00:00
Tobias Klauser
0eed32bd0d cmd/go: remove unused (*testgoData).FailSSH test helper
The last remaining user was removed by CL 213829.

Change-Id: Ic788b22b2de0d20e5fa096d137536d3b5c6d6c36
Reviewed-on: https://go-review.googlesource.com/c/go/+/525876
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
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2023-09-07 00:53:03 +00:00
thepudds
fbaf71f36b cmd/compile/internal/dwarfgen: make scope test less sensitive to changes in escape analysis
The test function fi is used in TestEscape, and the intent of fi
seems to be to leak its argument, but fi is currently
sensitive to changes in escape analysis regarding interface receivers.

Make fi less sensitive by directly leaking its argument.

Change-Id: I16cc3d3a6bd7b08a08c8fc292b0b99c9a54d68d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/524943
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2023-09-07 00:29:59 +00:00
Andy Pan
729f214e3a runtime: fix the miscalculation of memoryLimitGoal in gcPaceScavenger
The goal is supposed to be (100-reduceExtraPercent) / 100 * memoryLimit,
as stated in the original design.

Fixes #62449

Change-Id: Ia33acadc3320aa3625814595a24b9631ae8896d9
Reviewed-on: https://go-review.googlesource.com/c/go/+/525555
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2023-09-06 19:37:10 +00:00
Michael Pratt
4be921d888 runtime: clear procid in unminit
Extra Ms can move between system threads. needm will reinitialize procid
(via minit) on the new thread, but leaving a stale procid behind after
dropm can be misleading if printing the M early in needm for debugging.

Change-Id: I668891971a0baeab31170d1e40a97126416e7379
Reviewed-on: https://go-review.googlesource.com/c/go/+/526118
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2023-09-06 18:36:02 +00:00
Ian Lance Taylor
f25ca8b33d cmd/go: permit $AR to include options
Handle the AR environment variable, used by gccgo,
the same way we handle the CC environment variable.

Change-Id: I4f42161469392f68f0b5adeb9c8b52359d5108a6
Reviewed-on: https://go-review.googlesource.com/c/go/+/526275
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2023-09-06 18:35:28 +00:00
Than McIntosh
3f0f76734e cmd/compile/internal/inline: analyze function result properties
Add code to analyze properties of function result values, specifically
heuristics for cases where we always return allocated memory, always
return the same constant, or always return the same function.

Updates #61502.

Change-Id: I8b0a3295b5be7f7ad4c2d5b9803925aea0639376
Reviewed-on: https://go-review.googlesource.com/c/go/+/511559
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2023-09-06 18:30:19 +00:00
Than McIntosh
3d62c76736 cmd/compile/internal/ir: add "never returns" func flag
Add a flag to ir.Func's flags field to record whether a given function
is deemed to never return (e.g. always calls exit or panic or
equivalent on all control paths). So as to not increase the amount of
flag storage, this new flag replaces the existing "ExportInline" flag,
which is currently unused.

Change-Id: Idd336e47381048cfc995eda05faf8b62f06ba206
Reviewed-on: https://go-review.googlesource.com/c/go/+/518256
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2023-09-06 18:29:16 +00:00
Bryan C. Mills
a0c3a1b676 cmd/go: reject toolchain directives containing path separators
If GOTOOLCHAIN="path" or "auto", the go command uses exec.LookPath to
search for it in order to allow toolchains to refer to local-only
toolchain variants (such as toolchains built from enterprise- or
distro-patched source). However, those toolchains should only be
resolved from $PATH, not relative to the working directory of the
command.

Thanks to Juho Nurminen of Mattermost for reporting this issue.

Fixes #62198.
Fixes CVE-2023-39320.

Change-Id: I247c7acea95d737362dd0475e9fc8515430d0fcc
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1996318
Run-TryBot: Roland Shoemaker <bracewell@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Roland Shoemaker <bracewell@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/526158
Reviewed-by: Bryan Mills <bcmills@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2023-09-06 18:27:30 +00:00
Roland Shoemaker
b2f8f6c8ef html/template: properly handle special tags within the script context
The HTML specification has incredibly complex rules for how to handle
"<!--", "<script", and "</script" when they appear within literals in
the script context. Rather than attempting to apply these restrictions
(which require a significantly more complex state machine) we apply
the workaround suggested in section 4.12.1.3 of the HTML specification [1].

More precisely, when "<!--", "<script", and "</script" appear within
literals (strings and regular expressions, ignoring comments since we
already elide their content) we replace the "<" with "\x3C". This avoids
the unintuitive behavior that using these tags within literals can cause,
by simply preventing the rendered content from triggering it. This may
break some correct usages of these tags, but on balance is more likely
to prevent XSS attacks where users are unknowingly either closing or not
closing the script blocks where they think they are.

Thanks to Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.) for
reporting this issue.

Fixes #62197
Fixes CVE-2023-39319

[1] https://html.spec.whatwg.org/#restrictions-for-contents-of-script-elements

Change-Id: Iab57b0532694827e3eddf57a7497ba1fab1746dc
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1976594
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Roland Shoemaker <bracewell@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/526157
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Roland Shoemaker <roland@golang.org>
2023-09-06 18:26:41 +00:00
Roland Shoemaker
67fb00396d html/template: support HTML-like comments in script contexts
Per Appendix B.1.1 of the ECMAScript specification, support HTML-like
comments in script contexts. Also per section 12.5, support hashbang
comments. This brings our parsing in-line with how browsers treat these
comment types.

Thanks to Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.) for
reporting this issue.

Fixes #62196
Fixes CVE-2023-39318

Change-Id: Id512702c5de3ae46cf648e268cb10e1eb392a181
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1976593
Run-TryBot: Roland Shoemaker <bracewell@google.com>
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/526156
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Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2023-09-06 18:11:19 +00:00
Than McIntosh
e844d72421 cmd/compile/internal/inline: no-return flag analysis for inline heuristics
Add code to compute whether a given function appears to
unconditionally call panic or exit, as a means of driving inlining
decisions. Note that this determination is based on
heuristics/guesses, as opposed to strict safety analysis; in some
cases we may miss a function that does indeed always panic, or mark a
function as always invoking panic when it doesn't; the intent is get
the right answer in "most" cases.

Updates #61502.

Change-Id: Ibba3e60c06c2e54cf29b3ffa0f816518aaacb9a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/511558
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2023-09-06 17:43:02 +00:00
Paul E. Murphy
5cdb132228 cmd/compile/internal/ssa: improve masking codegen on PPC64
Generate RLDIC[LR] instead of MOVD mask, Rx; AND Rx, Ry, Rz.
This helps reduce code size, and reduces the latency caused
by the constant load.

Similarly, for smaller-than-register values, truncate constants
which exceed the range of the value's type to avoid needing to
load a constant.

Change-Id: I6019684795eb8962d4fd6d9585d08b17c15e7d64
Reviewed-on: https://go-review.googlesource.com/c/go/+/515576
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2023-09-06 16:34:20 +00:00
Nayef Ghattas
2186909d86 runtime/metrics: fix /gc/scan/* metrics
In the existing implementation, all /gc/scan/* metrics are
always equal to 0 due to the dependency on gcStatDep not being
set. This leads to gcStatAggregate always containing zeros, and
always reporting 0 for those metrics.

Also, add a test to ensure that /gc/scan/* metrics are not empty.

Fixes #62477.

Change-Id: I67497347d50ed5c3ce1719a18714c062ec938cab
Reviewed-on: https://go-review.googlesource.com/c/go/+/525595
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Felix Geisendörfer <felix.geisendoerfer@datadoghq.com>
2023-09-06 15:44:45 +00:00
Austin Clements
4c5130a96e runtime: ignore SPWrite on innermost traceback frame
Prior to CL 458218, gentraceback ignored the SPWrite function flag on
the innermost frame when doing a precise traceback on the assumption
that precise tracebacks could only be started from the morestack
prologue, and that meant that the innermost function could not have
modified SP yet.

CL 458218 rearranged this logic a bit and unintentionally lost this
particular case. As a result, if traceback starts in an assembly
function that modifies SP (either as a result of stack growth or stack
scanning during a GC preemption), traceback stop at the SPWrite
function and then crash with "traceback did not unwind completely".

Fix this by restoring the earlier special case for when the innermost
frame is SPWrite.

This is a fairly minimal change that should be easy to backport. I
think a more robust change would be to encode this per-PC in the
spdelta table, so it would be clear that we're unwinding from the
morestack prologue and wouldn't rely on a complicated and potentially
fragile set of conditions.

Fixes #62326.

Change-Id: I34f38157631890d33a79d0bd32e32c0fcc2574e4
Reviewed-on: https://go-review.googlesource.com/c/go/+/525835
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Austin Clements <austin@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2023-09-06 14:45:46 +00:00
Dmitri Shuralyov
08e35cc334 all: use ^$ instead of XXXX, NoSuchTestExists to match no tests
It's shorter and can't accidentally match unlikely test names.

Change-Id: I96dd9da018cad1acf604f266819470278f54c128
Reviewed-on: https://go-review.googlesource.com/c/go/+/524949
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2023-09-05 23:35:32 +00:00
Dmitri Shuralyov
0dfb22ed70 all: use ^TestName$ regular pattern for invoking a single test
Use ^ and $ in the -run flag regular expression value when the intention
is to invoke a single named test. This removes the reliance on there not
being another similarly named test to achieve the intended result.

In particular, package syscall has tests named TestUnshareMountNameSpace
and TestUnshareMountNameSpaceChroot that both trigger themselves setting
GO_WANT_HELPER_PROCESS=1 to run alternate code in a helper process. As a
consequence of overlap in their test names, the former was inadvertently
triggering one too many helpers.

Spotted while reviewing CL 525196. Apply the same change in other places
to make it easier for code readers to see that said tests aren't running
extraneous tests. The unlikely cases of -run=TestSomething intentionally
being used to run all tests that have the TestSomething substring in the
name can be better written as -run=^.*TestSomething.*$ or with a comment
so it is clear it wasn't an oversight.

Change-Id: Iba208aba3998acdbf8c6708e5d23ab88938bfc1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/524948
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Kirill Kolyshkin <kolyshkin@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2023-09-05 23:35:29 +00:00
Ian Lance Taylor
cffdfe8d2c runtime: don't let the tests leave core files behind
Also add a check that we didn't leave any core files behind.

Change-Id: I30444ef43ad1a8cc1cacd3b75280f2128e104939
Reviewed-on: https://go-review.googlesource.com/c/go/+/525175
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
2023-09-05 22:43:54 +00:00
Ian Lance Taylor
a819178915 os: don't invoke shell in TestStatStdin
Change-Id: I4048caffd4f79e3ffb6a0a3770bdfa830d1a2f35
Reviewed-on: https://go-review.googlesource.com/c/go/+/525515
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2023-09-05 22:34:26 +00:00
go101
972cc3e7c2 testing: add doc to not call Init concurrently
Change-Id: I2e218805fbe4858be125df97bdaf921799315799
GitHub-Last-Rev: 32b798d75f
GitHub-Pull-Request: golang/go#62410
Reviewed-on: https://go-review.googlesource.com/c/go/+/525015
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2023-09-05 22:26:12 +00:00
Ian Lance Taylor
b6372114b2 cmd/go: correct function name in comment
Change-Id: I9d8056117367998c3723ec4cc09f47b46ec8b4ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/525855
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
2023-09-05 21:59:53 +00:00
root
a40404da74 cmd/asm: add KMA and KMCTR instructions on s390x.
This CL is to add assembly instruction mnemonics for the following instructions, mainly used in crypto packages.

 * KMA    - cipher message with authentication
 * KMCTR  - cipher message with counter

Fixes #61163

Change-Id: Iff9a69911aeb4fab4bca8755b23a106eaebb2332
Reviewed-on: https://go-review.googlesource.com/c/go/+/515195
Reviewed-by: Carlos Amedee <carlos@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
2023-09-05 16:41:03 +00:00
Egon Elbre
a2647f08f0 compile/internal/walk: add walkGrowslice
Move growslice generation to a separate func so that specialization
logic can be shared.

Updates #49480

Change-Id: I9ea5bb898753622d2d767546a46b4db6410dc725
Reviewed-on: https://go-review.googlesource.com/c/go/+/495877
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
2023-09-05 15:06:41 +00:00
Kir Kolyshkin
0e1a9e1867 syscall: fixup TestUseCgroupFD error checking
Fixup for CL 520265; of course errors returned from os/exec are wrapped.

While at it, change the order -- it seems more readable this way.

Change-Id: Ifb5d0c113f4fb2b3cc4be922021dbd2a8a886b7b
Reviewed-on: https://go-review.googlesource.com/c/go/+/524959
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
2023-09-05 12:31:06 +00:00
Egon Elbre
1d84b02b22 runtime: introduce nextslicecap
This allows to reuse the slice cap computation across
specialized growslice funcs.

Updates #49480

Change-Id: Ie075d9c3075659ea14c11d51a9cd4ed46aa0e961
Reviewed-on: https://go-review.googlesource.com/c/go/+/495876
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
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2023-09-04 17:50:50 +00:00
Egon Elbre
c56f463412 runtime: optimize growslice
This is tiny optimization for growslice, which is probably too small to
measure easily.

Move the for loop to avoid multiple checks inside the loop.
Also, use >> 2 instead of /4, which generates fewer instructions.

Change-Id: I9ab09bdccb56f98ab22073f23d9e102c252238c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/493795
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Egon Elbre <egonelbre@gmail.com>
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Reviewed-by: Keith Randall <khr@google.com>
2023-09-04 17:50:46 +00:00