No need to indirect through Frontend for this.
Change-Id: I5812eb4dadfda79267cabc9d13aeab126c1479e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/526517
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This method is only used to find the path of the function being
compiled for hash debugging, but it was instead returning the path of
the package being compiled. These are typically the same, but can be
different for certain functions compiled across package boundaries
(e.g., method value wrappers and generic functions).
It's redundant either with f.fe.Func().Sym().Pkg.Path (package path of
the function being compiled) or f.Config.ctxt.Pkgpath (package path of
the compilation unit), so just remove it instead.
Change-Id: I1daae09055043d0ecb1fcc874a0b0006a6f8bddf
Reviewed-on: https://go-review.googlesource.com/c/go/+/526516
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Add Config and Cache as params rather than documenting that the caller
has to set them manually.
Change-Id: I8d530be695a0c94bcc4211b496d6e57ec2fff029
Reviewed-on: https://go-review.googlesource.com/c/go/+/526515
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Mostly automated refactoring with gofmt:
gofmt -r 'ir.Orig(n) -> n'
gofmt -r 'ir.SepCopy(n) -> ir.Copy(n)'
Followed by some manual cleanups.
Change-Id: Ib35abeba9e60b70ba463e161fb39358fb058a83e
Reviewed-on: https://go-review.googlesource.com/c/go/+/526398
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@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>
The OrigNode functionality used to be relevant to the typecheck
frontend, because we wanted to report errors using the same syntax as
the user originally wrote. However, now that types2 handles all
spec-required error diagnostics, there's no need to preserve original
nodes anymore.
Change-Id: I64a0540b8952513913021e7b84d165beb1f9f801
Reviewed-on: https://go-review.googlesource.com/c/go/+/526397
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Composite literals always have a type now, so the extra fallback code
isn't necessary. But also, to prepare for the upcoming removal of
OrigNode, we need to print OSLICELIT with Implicit set as
"... argument" to satisfy existing regress tests.
Change-Id: I365e879066903eebf1b78e10c1b505565cea3ce3
Reviewed-on: https://go-review.googlesource.com/c/go/+/526396
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
OrigNode will be going away soon, which is the only reason for
ConstExpr to exist. Otherwise, it's identical to BasicLit.
To keep existing code working, change NewConstExpr to construct and
return a BasicLit instead.
Change-Id: I68b43ec1fcaa57e6723f289ce9f953996aeefb14
Reviewed-on: https://go-review.googlesource.com/c/go/+/526395
Reviewed-by: Keith Randall <khr@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
One of the more tedious quirks of the original frontend (i.e.,
typecheck) to preserve was that it preserved the original
representation of constants into the backend. To fit into the unified
IR model, I ended up implementing a fairly heavyweight workaround:
simply record the original constant's string expression in the export
data, so that diagnostics could still report it back, and match the
old test expectations.
But now that there's just a single frontend to support, it's easy
enough to just update the test expectations and drop this support for
"raw" constant expressions.
Change-Id: I1d859c5109d679879d937a2b213e777fbddf4f2f
Reviewed-on: https://go-review.googlesource.com/c/go/+/526376
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
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Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Currently, for non-cgo programs, the g0 stack size is 8 KiB on
most platforms. With PGO which could cause aggressive inlining in
the runtime, the runtime stack frames are larger and could
overflow the 8 KiB g0 stack. Increase it to 16 KiB. This is only
one per OS thread, so it shouldn't increase memory use much.
Fixes#62120.
Fixes#62489.
Change-Id: I565b154517021f1fd849424dafc3f0f26a755cac
Reviewed-on: https://go-review.googlesource.com/c/go/+/526995
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
The UnspillReg code should always be preemptible because all the arg registers will be saved by runtime.asyncpreempt.
Change-Id: Ie36b5d0cdd1275efcb95661354d83be2e1b00a86
Reviewed-on: https://go-review.googlesource.com/c/go/+/526235
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
CL 513779 added crude skips for tests that couldn't work when run under
'unshare --net --map-root-user' as used by the current iteration of the
no-network check in LUCI. Bryan suggested a more targeted way to detect
when the environment is insufficient, which makes it possible to remove
the builder-specific skip and its slightly incorrect explaining comment.
Updates #30612.
Change-Id: I0de79f44ab94d7f1018384c2e959ca7df3a1b0ae
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-linux-amd64-longtest-race
Reviewed-on: https://go-review.googlesource.com/c/go/+/526835
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Reviewed-by: Bryan Mills <bcmills@google.com>
This CL adds support for debugger function calls on linux ppc64le
platform. The protocol is basically the same as in CL 395754, except for
the following differences:
1, The abi differences which affect parameter passing and frame layout.
2, The closure register is R11.
3, Minimum framesize on pp64le is 32 bytes
4, Added functions to return parent context structure for general purpose
registers in order to work with the way these structures are defined in
ppc64le
Change-Id: I58e01fedad66a818ab322e2b2d8f5104cfa64f39
Reviewed-on: https://go-review.googlesource.com/c/go/+/512575
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Archana Ravindar <aravinda@redhat.com>
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https://go.dev/cl/524940 swapped a call to Slice with Bytes,
but the comment below still referenced Slice.
Change-Id: Iedc772e1c49c4108bcd06f4cea0e637f011d053c
Reviewed-on: https://go-review.googlesource.com/c/go/+/526356
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: t hepudds <thepudds1460@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Add R_MIPS_PC32 which is a 32 bit PC relative relocation.
These are produced by LLVM on mips64.
Fixes#61974
Change-Id: I7b6c6848e40249e6d5ea474ea53c9d7e3ab23f88
Reviewed-on: https://go-review.googlesource.com/c/go/+/469395
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: Junxian Zhu <zhujunxian@oss.cipunited.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Replace a "fixme" with a more appropriate error. Also invert the condition
so that the error returns early, which is more Go idiomatic.
Change-Id: I03006572c4010fb47037bed3ee1fd7f92bfc20d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/523457
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Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: M Zhuo <mzh@golangcn.org>
Change-Id: I68be4110216145ad1fb2e5095e1f2b143f9e69ac
Reviewed-on: https://go-review.googlesource.com/c/go/+/523456
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Reviewed-by: M Zhuo <mzh@golangcn.org>
Run-TryBot: Joel Sing <joel@sing.id.au>
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>
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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>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
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>
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Reviewed-by: Bryan Mills <bcmills@google.com>
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>
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Reviewed-by: Bryan Mills <bcmills@google.com>
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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>
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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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>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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>
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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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>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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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Reviewed-by: Rob Pike <r@golang.org>
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>
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Reviewed-by: Rob Pike <r@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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: Matthew Dempsky <mdempsky@google.com>
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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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
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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
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Reviewed-by: Cherry Mui <cherryyz@google.com>
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
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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
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Reviewed-by: Than McIntosh <thanm@google.com>
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>
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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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>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: t hepudds <thepudds1460@gmail.com>
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>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: t hepudds <thepudds1460@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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
Run-TryBot: t hepudds <thepudds1460@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Run-TryBot: Andy Pan <panjf2000@gmail.com>
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>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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>
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>
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>
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>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
