Checker.err was only called to report errors created with
Checker.newError or Checker.newErrorf. Update the API to pass around
*Error rather than error, eliminating unnecessary type assertions and
handling.
Change-Id: I995a120c7e87266e656b8ff3fd9ed3d368fd17fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/400823
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With this patch, -asan option can detect the error memory
access to global variables.
So this patch makes a few changes:
1. Add the asanregisterglobals runtime support function,
which calls asan runtime function _asan_register_globals
to register global variables.
2. Create a new initialization function for the package
being compiled. This function initializes an array of
instrumented global variables and pass it to function
runtime.asanregisterglobals. An instrumented global
variable has trailing redzone.
3. Writes the new size of instrumented global variables
that have trailing redzones into object file.
4. Notice that the current implementation is only compatible with
the ASan library from version v7 to v9. Therefore, using the
-asan option requires that the gcc version is not less than 7
and the clang version is less than 4, otherwise a segmentation
fault will occur. So this patch adds a check on whether the compiler
being used is a supported version in cmd/go.
Change-Id: I664e74dcabf5dc7ed46802859174606454e8f1d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/321715
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Fannie Zhang <Fannie.Zhang@arm.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This CL adds support for the reg ABI to the bytes functions for
riscv64. These are initially under control of the
GOEXPERIMENT macro until all changes are in.
Change-Id: I026295ae38e2aba055f7a51c77f92c1921e5ec97
Reviewed-on: https://go-review.googlesource.com/c/go/+/361916
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CL 205457 added the flag -Wno-nullability-completeness to work
around a user-reported build breakage on macOS Catalina.
However, according to
https://golang.org/issue/35247#issuecomment-589115489 the root cause
of the breakage may be a toolchain misconfiguration on the host
(perhaps compiling the XCode stdlib using a Homebrew build of the
"clang" compiler?).
Adding an obscure warning flag to enable building stdlib.h with an
otherwise-broken toolchain seems clearly inappropriate to me.
If need be we can instead provide guidance to users on how to unbreak
their toolchain.
Updates #35247Fixes#49913
Change-Id: I84def34e101bed7911d8d78a991a29095b8791fa
Reviewed-on: https://go-review.googlesource.com/c/go/+/368634
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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In CL 339309 this was probably copied from the respective godoc comment
in package inet.af/netaddr, also see
https://pkg.go.dev/inet.af/netaddr#IP.Is4
In net/netip the type is named Addr, so adjust the godoc comment
accordingly.
Change-Id: Ib5ab8054067f8b74119efa4732192a8407189f9b
Reviewed-on: https://go-review.googlesource.com/c/go/+/401394
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Also update the file in $GOROOT/api/next to use proposal number.
For #51684
Change-Id: I28bfa6bc1cee98a17b13da196d41cda34d968bb0
Reviewed-on: https://go-review.googlesource.com/c/go/+/401076
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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The following Value methods are now inlineable:
Bool for ~bool
String for ~string (but not other kinds)
Bytes for []byte (but not ~[]byte or ~[N]byte)
Len for ~[]T (but not ~[N]T, ~chan T, ~map[K]V, or ~string)
Cap for ~[]T (but not ~[N]T or ~chan T)
For Bytes, we only have enough inline budget to inline one type,
so we optimize for unnamed []byte, which is far more common than
named []byte or [N]byte.
For Len and Cap, we only have enough inline budget to inline one kind,
so we optimize for ~[]T, which is more common than the others.
The exception is string, but the size of a string can be obtained
through len(v.String()).
Performance:
Bool 1.65ns ± 0% 0.51ns ± 3% -68.81% (p=0.008 n=5+5)
String 1.97ns ± 1% 0.70ns ± 1% -64.25% (p=0.008 n=5+5)
Bytes 8.90ns ± 2% 0.89ns ± 1% -89.95% (p=0.008 n=5+5)
NamedBytes 8.89ns ± 1% 8.88ns ± 1% ~ (p=0.548 n=5+5)
BytesArray 10.0ns ± 2% 10.2ns ± 1% +1.58% (p=0.048 n=5+5)
SliceLen 1.97ns ± 1% 0.45ns ± 1% -77.22% (p=0.008 n=5+5)
MapLen 2.62ns ± 1% 3.07ns ± 1% +17.24% (p=0.008 n=5+5)
StringLen 1.96ns ± 1% 1.98ns ± 2% ~ (p=0.151 n=5+5)
ArrayLen 1.96ns ± 1% 2.19ns ± 1% +11.46% (p=0.008 n=5+5)
SliceCap 1.76ns ± 1% 0.45ns ± 2% -74.28% (p=0.008 n=5+5)
There's a slight slowdown (~10-20%) for obtaining the length
of a string or map, but a substantial improvement for slices.
Performance according to encoding/json:
CodeMarshal 555µs ± 2% 562µs ± 4% ~ (p=0.421 n=5+5)
MarshalBytes/32 163ns ± 1% 157ns ± 1% -3.82% (p=0.008 n=5+5)
MarshalBytes/256 453ns ± 1% 447ns ± 1% ~ (p=0.056 n=5+5)
MarshalBytes/4096 4.10µs ± 1% 4.09µs ± 0% ~ (p=1.000 n=5+4)
CodeUnmarshal 3.16ms ± 2% 3.02ms ± 1% -4.18% (p=0.008 n=5+5)
CodeUnmarshalReuse 2.64ms ± 3% 2.51ms ± 2% -4.81% (p=0.016 n=5+5)
UnmarshalString 65.4ns ± 4% 64.1ns ± 0% ~ (p=0.190 n=5+4)
UnmarshalFloat64 59.8ns ± 5% 58.9ns ± 2% ~ (p=0.222 n=5+5)
UnmarshalInt64 51.7ns ± 1% 50.0ns ± 2% -3.26% (p=0.008 n=5+5)
EncodeMarshaler 23.6ns ±11% 20.8ns ± 1% -12.10% (p=0.016 n=5+4)
Add all inlineable methods of Value to cmd/compile/internal/test/inl_test.go.
Change-Id: Ifc192491918af6b62f7fe3a094a5a5256bfb326d
Reviewed-on: https://go-review.googlesource.com/c/go/+/400676
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Partially fixes https://github.com/golang/go/issues/38674
The first commit has the actual unification, the second commit just cleans things up by moving shared code into its own package for clarity.
Change-Id: I85067f8b247df02f94684ec1297a1a42263bba0c
GitHub-Last-Rev: 370a4ecad3
GitHub-Pull-Request: golang/go#52315
Reviewed-on: https://go-review.googlesource.com/c/go/+/399542
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Change-Id: Ia0a4be56d4e1fbfc73e6ce24f01a658c89a74adb
GitHub-Last-Rev: dd95e50c4b
GitHub-Pull-Request: golang/go#52393
Reviewed-on: https://go-review.googlesource.com/c/go/+/400694
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Currently bufio.Writer implements forwarding to the underlying Writer
for large writes via Write, but it does not do the same for large
writes via WriteString.
If the underlying Writer is also a StringWriter, use the same "large
writes" logic also in WriteString while taking care to only check
once per call to WriteString whether the underlying Writer implements
StringWriter.
Change-Id: Id81901c07b035936816b9e41b1f5688e699ee8e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/380074
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Also correct parameter name in comment.
Change-Id: Ic9486e08c2eea184faccf181cda7da808793def6
Reviewed-on: https://go-review.googlesource.com/c/go/+/400674
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This is a re-do of CL 388477, fixing #52472.
It is unsafe to call syscall.RawSyscall from syscall.Syscall with
-coverpkg=all and -race. This is because:
1. Coverage adds a sync/atomic call in RawSyscall to increment the
coverage counter.
2. Race mode instruments sync/atomic calls with TSAN runtime calls. TSAN
eventually calls runtime.racecallbackfunc, which expects
getg().m.p != 0, which is no longer true after entersyscall().
cmd/go actually avoids adding coverage instrumention to package runtime
in race mode entirely to avoid these kinds of problems. Rather than also
excluding all of syscall for this one function, work around by calling
RawSyscall6 instead, which avoids coverage instrumention both by being
written in assembly and in package runtime/*.
For #51087Fixes#52472
Change-Id: Iaffd27df03753020c4716059a455d6ca7b62f347
Reviewed-on: https://go-review.googlesource.com/c/go/+/401654
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cmd/trace is currently somewhat painful to use in odd environments since
it depends on the presence of $GOROOT/misc/trace to serve the static
trace viewer content.
Use //go:embed to embed this content directly into cmd/trace for easier
use.
Change-Id: I83b7d97dbecc9773f3b5a6b3bc4a6597473bc01a
Reviewed-on: https://go-review.googlesource.com/c/go/+/378194
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Just like https://golang.org/cl/401454 removed the work from gofmt for a
nice ~5% speed-up in the default case, we can also use the option in the
equivalent go/format for programs which use it rather than gofmt,
as go/format makes no use of objects either.
No benchmark numbers as we already measured the ~5% speed-up with gofmt
in the other CL linked above.
See #46485.
Change-Id: Icbf98e6d46a616081314e2faa13f1dfade3bbaef
Reviewed-on: https://go-review.googlesource.com/c/go/+/401474
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go/parser will by default resolve objects as per the go/ast.Object type,
which is then used by gofmt's rewrite and simplify flags.
However, none of that is needed if neither of the flags is set,
so we can avoid the work entirely for a nice speed-up.
benchcmd -n 8 GofmtSrcCmd gofmt -l ~/tip/src/cmd
name old time/op new time/op delta
GofmtSrcCmd 957ms ± 7% 908ms ± 7% -5.12% (p=0.028 n=8+8)
name old user-time/op new user-time/op delta
GofmtSrcCmd 11.2s ± 1% 10.4s ± 1% -7.23% (p=0.001 n=7+7)
name old sys-time/op new sys-time/op delta
GofmtSrcCmd 325ms ±29% 286ms ±22% ~ (p=0.065 n=8+8)
name old peak-RSS-bytes new peak-RSS-bytes delta
GofmtSrcCmd 295MB ±17% 276MB ±15% ~ (p=0.328 n=8+8)
See #46485.
Change-Id: Iad1ae294953710c233f7837d7eb02e23d11c6185
Reviewed-on: https://go-review.googlesource.com/c/go/+/401454
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This reverts CL400377, which restricted serials passed to
x509.CreateCertificate to <= 20 octets. Unfortunately this turns out to
be something _a lot_ of people get wrong. Since it's not particularly
obvious how to properly generate conformant serials, until we provide
an easier way for people to get this right, reverting this restriction
makes sense (possible solution discussed in #52444.)
Change-Id: Ia85a0ffe61e2e547abdaf1389c3e1ad29e28a2be
Reviewed-on: https://go-review.googlesource.com/c/go/+/401657
Reviewed-by: Roland Shoemaker <roland@golang.org>
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Rename it TestIssue1560 since it no longer sleeps.
For #1560Fixes#45586
Change-Id: I338eee9de43e871da142143943e9435218438e90
Reviewed-on: https://go-review.googlesource.com/c/go/+/400194
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When the user is trying to list or build a package in a module that's
outside of the workspace provide a more clear message hinting to the
user that they can add the module to the workspace using go work use.
Fixes#51604
Change-Id: I1202ecb2f22fd6351bfdec88ed613b8167687fb7
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Future CLs will be changing the provenance of these functions. Move the
declarations to the individual OS files now so that future CLs can
change only 1 OS at a time rather than changing all at once.
For #51087
Change-Id: I5e1bca71e670263d8c0faa586c1b6b4de1a114b6
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This CL exports the existing ir.UintptrKeepAlive via the new directive
//go:uintptrkeepalive. This makes the compiler insert KeepAlives for
pointers converted to uintptr in calls, keeping them alive for the
duration of the call.
//go:uintptrkeepalive requires //go:nosplit, as stack growth can't
handle these arguments (it cannot know which are pointers). We currently
check this on the immediate function, but the actual restriction applies
to all transitive calls.
The existing //go:uintptrescapes is an extension of
//go:uintptrkeepalive which forces pointers to escape to the heap, thus
eliminating the stack growth issue.
This pragma is limited to the standard library.
For #51087
Change-Id: If9a19d484d3561b4219e5539b70c11a3cc09391e
Reviewed-on: https://go-review.googlesource.com/c/go/+/388095
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CL 388095 will change this file significantly. Move it preemptively to
ensure git tracks the move properly.
For #51087
Change-Id: I1408aecf8675723041b64e54cf44cdec38cc655c
Reviewed-on: https://go-review.googlesource.com/c/go/+/388094
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This is a code simplification using the new API added in #50599.
Change-Id: Icb9628bcd0daa3dc2d653e9654b38099730137d1
Reviewed-on: https://go-review.googlesource.com/c/go/+/401535
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With #50599 implemented, base.AppendPWD is redundant if cmd.Env would
otherwise be nil, and calls to os.Environ followed by base.AppendPWD
can be replaced by a simpler call to cmd.Environ.
Updates #50599.
Change-Id: I94a22e2a4cc8e83c815ac41702ea0b1ee5034ecc
Reviewed-on: https://go-review.googlesource.com/c/go/+/401534
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Change-Id: If3d8391d81e8de869dbb3c857f0570817e8aa440
Reviewed-on: https://go-review.googlesource.com/c/go/+/400914
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
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Change-Id: I5698c7576a0f39ae62de7bea64286ac8e578d421
Reviewed-on: https://go-review.googlesource.com/c/go/+/400916
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Reviewed-by: Keith Randall <khr@google.com>
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Change-Id: I5ccbcea4c53658136b25ca608faec19eeec2e908
Reviewed-on: https://go-review.googlesource.com/c/go/+/400915
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Reviewed-by: Keith Randall <khr@google.com>
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This reverts CL 400877.
Reason for revert: broke TestScript/test_output_wait and the
regression test for #18153 on certain builders.
Fixes#52461.
Change-Id: I98627ce5e22088b0784be502c459480c41ba353a
Reviewed-on: https://go-review.googlesource.com/c/go/+/401494
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Per RFC 4158 Section 2.4.2, when we are discarding candidate
certificates during path building, use the SANs as well as subject and
public key when checking whether a certificate is already present in
the built path. This supports the case where a certificate in the chain
(typically a leaf) has the exact same subject and public key as another
certificate in the chain (typically its parent) but has SANs which don't
match.
Change-Id: I212c234e94a1f6afbe9691e4a3ba257461db3a7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/401115
Reviewed-by: Roland Shoemaker <roland@golang.org>
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Does what it says on the tin.
Fixes#51088
Change-Id: I12c0fa6bba1c1ce96c1ad31ba387c77a93f801c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/384894
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Once #50599 is implemented, the entries will be observable via the
Environ method. I find it confusing for later entries in the list to
jump arbitrarily far forward based on entries for the same key that no
longer exist.
This also fixes the deduplication logic for the degenerate Windows
keys observed in #49886, which were previously deduplicated as empty
keys.
(It does not do anything about the even-more-degenerate keys observed
in #52436.)
For #50599.
Change-Id: Ia7cd2200ec34ccc4b9d18631cb513194dc420c25
Reviewed-on: https://go-review.googlesource.com/c/go/+/401339
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There is an issue where 'go test' will hang after the tests complete if
a test starts a sub-process that does not exit (see #24050).
However, go test only exhibits that behavior when a package name is
explicitly passed as an argument. If 'go test' is invoked without any
package arguments then the package in the working directory is assumed,
however in that case (and only that case) os.Stdout is used as the test
process's cmd.Stdout, which does *not* cause 'go test' wait for the
sub-process to exit (see #23019).
This change wraps os.Stdout in an io.Writer struct in this case, hiding
the *os.File from the os/exec package, causing cmd.Wait to always wait
for the full output from the test process and any of its sub-processes.
In other words, this makes 'go test' exhibit the same behavior as
'go test .' (or 'go test ./...' and so on).
Update #23019
Update #24050
Change-Id: Ica09bf156f3b017f9a31aad91ed0f16a7837195b
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Support fastrand64 in the runtime, although fastrand uses wyrand to generate 64-bit random number, it still returns uint32. In some cases, we need to generate a 64-bit random number, the new API would be faster and easier to use, and at least we can use the new function in these places:
src/net/dnsclient.go:randInt()
src/hash/maphash/maphash.go:MakeSeed()
src/runtime/map.go:mapiterinit()
name time/op
Fastrand-16 0.09ns ± 5%
Fastrand64-16 0.09ns ± 6%
Change-Id: Ibb97378c7ca59bc7dc15535d4872fa58ea112e6a
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Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
overflowPad variable in bucketOf function is a holdover from a NaCl port
and never used now.
Change-Id: Ib68fdb054e1b6a655ffbfd34521a3f8773a22694
GitHub-Last-Rev: f281be9c11
GitHub-Pull-Request: golang/go#52449
Reviewed-on: https://go-review.googlesource.com/c/go/+/401274
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
The WHATWG Mime Sniffing Standard we follow dropped support for
.snd / audio/basic.
https://github.com/whatwg/mimesniff/issues/151
Change-Id: Iae1bd8b29063b06b5b3909a944e12ead5974a526
Reviewed-on: https://go-review.googlesource.com/c/go/+/400754
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Auto-Submit: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
When we have an error in a function type used in an expression
we don't know until we see an opening { whether we have a function
literal or a function type. Use "function type" as context because
that's always correct in the specific error message.
Change-Id: I9aad8fcddf31ae53daa53cebd2c2001f08eabde0
Reviewed-on: https://go-review.googlesource.com/c/go/+/401316
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
If the user provides the -json flag to explicitly specify fields, but
doesn't specify the Deps or DepsErrors fields, skip computing the deps
fields.
For #29666
Change-Id: I15596c374aba1af13bdf5808d11d54abdc838667
Reviewed-on: https://go-review.googlesource.com/c/go/+/392495
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Michael Matloob <matloob@golang.org>
Auto-Submit: Michael Matloob <matloob@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
