Also add comment explaining why we don't use ignoringEINTR around
call to close.
Fixes#41115
Change-Id: Ia7bbe01eaf26003f70d184b7e82803efef2b2c18
Reviewed-on: https://go-review.googlesource.com/c/go/+/258542
Trust: Ian Lance Taylor <iant@golang.org>
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2 conflicts, that make sense.
src/cmd/internal/obj/objfile.go
src/cmd/link/internal/loader/loader.go
Change-Id: Ib224e2d248cb568fa1e888af79dd908b2f5e05ff
1.Revise ambiguous comments: "all current buckets" means buckets in hmap.buckets, actually current bucket and all the overflow buckets connected to it are full
2.All the pointer address add use src/runtime/stubs.go:add, keep the code style uniform
Change-Id: Idc7224dbe6c391e1b03bf5d009c3734bc75187ce
Reviewed-on: https://go-review.googlesource.com/c/go/+/257979
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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Updates x/net/http2 to git rev 5d4f7005572804eaf7f5ecdd2473a62557f733ba
http2: send WINDOW_UPDATE on a body's write failure
https://golang.org/cl/245158 (fixes#40423)
also updates the vendored version of golang.org/x/net as per
$ go get golang.org/x/net@5d4f700557
$ go mod tidy
$ go mod vendor
$ go generate -run bundle std
For #40423.
Change-Id: I3270d0fb6f28889266596f7365d36d30ef2bb368
Reviewed-on: https://go-review.googlesource.com/c/go/+/258359
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For #26909
For #41688
Change-Id: I22f28d426ce499fce6f0f1295dbde425998042aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/258219
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For #37438
Change-Id: Ie40971ff677d36ddadbf9834bba2d366a0fc34d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/256922
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Extends the IA5String encoding restrictions that are currently applied
to name constraints to dNSName, rfc822Name, and
uniformResourceIdentifier elements of the SAN. The utility function
isIA5String is updated to use unicode.MaxASCII rather than utf8.RuneSelf
as it is somewhat more readable.
Certificates that include these badly encoded names do exist, but are
exceedingly rare. zlint and other linters enforce this encoding and
searching censys.io reveals only three currently trusted certificates
with this particular encoding issue.
Fixes#26362
Change-Id: I7a4f3e165a1754e5b4bfaeabc03e01eb7367f3c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/235078
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For #37438
Change-Id: Iae00ef7f97144e85f4f710cdb3087c2548b4b8f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/256799
Trust: Bryan C. Mills <bcmills@google.com>
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Eliminate a panic in x509.CreateCertificate when passing templates with unknown ExtKeyUsage; return an error instead.
Fixes#41169
Change-Id: Ia229d3b0d4a1bdeef05928439d97dab228687b3c
Reviewed-on: https://go-review.googlesource.com/c/go/+/252557
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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Originally, zeroExtendAndCopy is used to pad src with leading zeros and
copy the padded src into the destination. It is no longer needed after
CL 230397 introduced FillBytes. We can simply use that and remove the
zeroExtendAndCopy function. It is cleaner and reduces some allocation.
In addition, this patch tries to avoid calling hashToInt function in
both Sign and Verify function so some allocation is reduced.
Benchmarks:
name old alloc/op new alloc/op delta
SignP256-8 1.60kB ± 0% 1.49kB ± 0% -7.23% (p=0.000 n=20+20)
SignP384-8 1.74kB ± 0% 1.59kB ± 0% -8.50% (p=0.000 n=20+18)
VerifyP256-8 176B ± 0% 0B -100.00% (p=0.000 n=20+20)
KeyGeneration-8 640B ± 0% 640B ± 0% ~ (all equal)
name old allocs/op new allocs/op delta
SignP256-8 22.0 ± 0% 17.0 ± 0% -22.73% (p=0.000 n=20+20)
SignP384-8 22.0 ± 0% 17.0 ± 0% -22.73% (p=0.000 n=20+20)
VerifyP256-8 7.00 ± 0% 0.00 -100.00% (p=0.000 n=20+20)
KeyGeneration-8 13.0 ± 0% 13.0 ± 0% ~ (all equal)
Change-Id: Ic4c95191eded55deb3420d97db501689f3b173c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/232297
Reviewed-by: Michael Munday <mike.munday@ibm.com>
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'go install pkg@version' runs without a main module or a module root
directory. The -modfile flag cannot be used to set the module root
directory or to substitute a different go.mod file.
This error won't be reported if -modfile is set in
GOFLAGS. Unsupported flags there are generally ignored.
For #40276
Change-Id: I0b39b1fa9184c15c6e863b647d43c328710920f4
Reviewed-on: https://go-review.googlesource.com/c/go/+/258297
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If vdso is disabled, the goruntime calls gettimeofday from vsyscall,
but if vsyscall is disabled too, all golang binaries crash:
SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0xffffffffff600000} ---
killed by SIGSEGV (core dumped) ++
vsyscall doesn't work as it was designed for a long time due to security
reasons and now vsyscall is a little more expensive than real syscalls:
https://github.com/torvalds/linux/commit/5cec93c216db
This patch reworks the code to call syscalls if the vdso library isn't
available.
Change-Id: I16cbf3f49871bea91e26af1f49aa0ae2fbd3a01d
GitHub-Last-Rev: 1d133cd30a
GitHub-Pull-Request: golang/go#41681
Reviewed-on: https://go-review.googlesource.com/c/go/+/257982
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Similar to how we report initialization loops in initorder.go and type
alias loops in typecheck.go, this CL updates align.go to warn about
invalid recursive types. The code is based on the loop code from
initorder.go, with minimal changes to adapt from detecting
variable/function initialization loops to detecting type declaration
loops.
Thanks to Cuong Manh Le for investigating this, helping come up with
test cases, and exploring solutions.
Fixes#41575
Updates #41669.
Change-Id: Idb2cb8c5e1d645e62900e178fcb50af33e1700a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/258177
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Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
When building a x509 chain the algorithm currently looks for parents
that have a subject key identifier (SKID) that matches the child
authority key identifier (AKID), if it is present, and returns all
matches. If the child doesn't have an AKID, or there are no parents
with matching SKID it will instead return all parents that have a
subject DN matching the child's issuer DN. Prioritizing AKID/SKID
matches over issuer/subject matches means that later in buildChains we
have to throw away any pairs where these DNs do not match. This also
prevents validation when a child has a SKID with two possible parents,
one with matching AKID but mismatching subject DN, and one with a
matching subject but missing AKID. In this case the former will be
chosen and the latter ignored, meaning a valid chain cannot be built.
This change alters how possible parents are chosen. Instead of doing a
two step search it instead only consults the CertPool.byName subject DN
map, avoiding issues where possible parents may be shadowed by parents
that have SKID but bad subject DNs. Additionally it orders the list of
possible parents by the likelihood that they are in fact a match. This
ordering follows this pattern:
* AKID and SKID match
* AKID present, SKID missing / AKID missing, SKID present
* AKID and SKID don't match
In an ideal world this should save a handful of cycles when there are
multiple possible matching parents by prioritizing parents that have
the highest likelihood. This does diverge from past behavior in that
it also means there are cases where _more_ parents will be considered
than in the past. Another version of this change could just retain the
past behavior, and only consider parents where both the subject and
issuer DNs match, and if both parent and child have SKID and AKID also
compare those, without any prioritization of the candidate parents.
This change removes an existing test case as it assumes that the
CertPool will return a possible candidate where the issuer/subject DNs
do not match.
Fixes#30079
Change-Id: I629f579cabb0b3d0c8cae5ad0429cc5a536b3e58
Reviewed-on: https://go-review.googlesource.com/c/go/+/232993
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Follow the implementation of pipe2 to pass arguments and handle return
values.
With this fix the runtime tests pass on netbsd/arm64 (tested using
gomote on the netbsd-arm64-bsiegert builder).
Update #30824
Change-Id: I346db68fc9dde8dc7f11351af05c1ad3105f4a32
Reviewed-on: https://go-review.googlesource.com/c/go/+/258000
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Type namedata symbols are for type/field/method names and package
paths. We can use content-addressable symbol mechanism for them.
Change-Id: I923fda17b7094c7a0e46aad7c450622eb3826294
Reviewed-on: https://go-review.googlesource.com/c/go/+/257960
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Currently, in the linker's deadcode pass, when an interface type
is live, the linker thinks all its methods are live, and uses
them to match methods on concrete types. The interface method may
never be used, though.
This CL changes it to only keep used interface methods, for
matching concrete type methods. To do that, when an interface
method is used, the compiler generates a mark relocation. The
linker uses the marker relocations to mark used interface
methods, and only the used ones.
binary size before after
cmd/compile 18887400 18812200
cmd/go 13470652 13470492
Change-Id: I3cfd9df4a53783330ba87735853f2a0ec3c42802
Reviewed-on: https://go-review.googlesource.com/c/go/+/256798
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
In the method table, the method's code pointer is stored as an
offset from the start of the text section. Currently, for an
unreachable method, the offset is left as 0, which resolves to
the start of the text section at run time. It is possible that
there is valid code there. If an unreachable method is ever
reached (due to a compiler or linker bug), the execution will
jump to a wrong location but may continue to run for a while,
until it fails with a seemingly unrelated error.
This CL changes it to use -1 for unreachable method instead. At
run time this will resolve to an invalid address, which makes it
fail immediately if it is ever reached.
Change-Id: Ied6ed7f1833c4f3b991fdf55d8810d70d307b2e6
Reviewed-on: https://go-review.googlesource.com/c/go/+/257203
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A test that checks if "tls.(*Conn)" appears in any symbol's name.
tls.Conn is a type, so the string "tls.(*Conn)" can only appear
in the name of a method of Conn. But the test code doesn't use
any of the methods. Not sure why this needs to be live. In
particular, the linker is now able to prune all methods of Conn.
Remove this requirement. In fact, just drop the only_conn test
case, as simply allocating a type doesn't necessarily bring
anything live.
Change-Id: I754291b75d38e1465b5291b4dea20806615d21b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/257973
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The function takes five 24-bit chunks from the hash, resulting in 120
bits. When base-64 encoded, this results in a 20-byte output string,
which is confirmed by "var dst [chunks * 4]byte".
It seems like the documented math could have been written for a previous
implementation with shorter hashes, using 4 chunks instead of 5, as then
the math checks out.
Since this code has been working correctly for over three years, let's
fix the documentation to reflect the code.
Change-Id: I9e908e6bafb5dcc1e3c23915e2b6c8843ed444d6
Reviewed-on: https://go-review.googlesource.com/c/go/+/257646
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Changes Unmarshal to return an error, instead of
panicking when its value is nil or not a pointer.
This change matches the behavior of other encoding
packages like json.
Fixes#41509.
Change-Id: I92c3af3a960144566e4c2b55d00c3a6fe477c8d5
GitHub-Last-Rev: c668b6e4ad
GitHub-Pull-Request: golang/go#41485
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Split the list of CA certificate directory locations in root_unix.go by
GOOS (aix, *bsd, js, linux, solaris).
On solaris, also include /etc/certs/CA as documented here:
https://docs.oracle.com/cd/E37838_01/html/E61024/kmf-cacerts.html
Same as CL 2208 did for certFiles.
Change-Id: Id24822d6a674bbbbf4088ebb8fe8437edad232b7
Reviewed-on: https://go-review.googlesource.com/c/go/+/248762
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NetBSD does not supply AT_HWCAP, however we still need to initialise
cpu.HWCaps. For now specify the bare minimum until we add some form of
capabilities detection. See
https://golang.org/issue/30824#issuecomment-494901591
Follows CL 174129 which did the same for openbsd/arm64.
Updates #30824
Change-Id: I43a86b583bc60d259a66772703de06970124bb7f
Reviewed-on: https://go-review.googlesource.com/c/go/+/257998
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The linker prunes methods that are not directly reachable if the
receiver type is never converted to interface. Currently, this
"never" is too strong: it is invalidated even if the interface
conversion is in an unreachable function. This CL improves it by
only considering interface conversions in reachable code. To do
that, we introduce a marker relocation R_USEIFACE, which marks
the target symbol as UsedInIface if the source symbol is reached.
binary size before after
cmd/compile 18897528 18887400
cmd/go 13607372 13470652
Change-Id: I66c6b69eeff9ae02d84d2e6f2bc7f1b29dd53910
Reviewed-on: https://go-review.googlesource.com/c/go/+/256797
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
As part of type checking make's arguments, we were converting untyped
float and complex constant arguments to integers. However, we were
doing this without concern for whether the argument was a declared
constant. Thus a call like "make([]T, n)" could change n from an
untyped float or untyped complex to an untyped integer.
The fix here is to simply change checkmake to not call SetVal, which
will be handled by defaultlit anyway. However, we also need to
properly return the defaultlit result value to the caller, so
checkmake's *Node parameter is also changed to **Node.
Fixes#41680.
Change-Id: I858927a052f384ec38684570d37b10a6906961f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/257966
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Adds a benchmark for TB.Helper, to use as a judge of future
improvements like CL 231717.
Change-Id: I17c40d482fc12caa3eb2c1cda39fd8c42356b422
Reviewed-on: https://go-review.googlesource.com/c/go/+/257317
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Trust: Emmanuel Odeke <emm.odeke@gmail.com>
Rather than generating the three possible RSA PSS parameters each time
they are needed just hardcode them and pick the required one based on
the hash function.
Fixes#41407
Change-Id: Id43bdaf40b3ca82c4c04c6588e3b643f63107657
Reviewed-on: https://go-review.googlesource.com/c/go/+/258037
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This adds support for the extswsli instruction which combines
extsw followed by a shift.
New benchmark demonstrates the improvement:
name old time/op new time/op delta
ExtShift 1.34µs ± 0% 1.30µs ± 0% -3.15% (p=0.057 n=4+3)
Change-Id: I21b410676fdf15d20e0cbbaa75d7c6dcd3bbb7b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/257017
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Updates Reader.ReadForm to check for overflow errors that may
result from a leeway addition of 10MiB to the input argument
maxMemory.
Fixes#40430
Change-Id: I510b8966c95c51d04695ba9d08fcfe005fd11a5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/247477
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When explaining why the slice from a make() call escapes for the -m -m
message, we print "non-const size" if any one of Isconst(n.Left) and
Isconst(n.Right) return false; but for OMAKESLICE nodes with no cap,
n.Right is nil, so Isconst(n.Right, CTINT) will be always false.
Only call Isconst on n.Right if it's not nil.
Fixes#41635
Change-Id: I8729801a9b234b68ae40adad64d66fa7653adf09
Reviewed-on: https://go-review.googlesource.com/c/go/+/257641
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
ENOTSUP was used as a signaling error in the custom implementation of
syscall.Getwd to fall back to the slow algorithm. Since CL 257637 Getwd
directly calls the respective function from libSystem.dylib which can no
longer return ENOTSUP.
Change-Id: I8e65e42b3ea069bf78969a29f2af1c55552e2949
Reviewed-on: https://go-review.googlesource.com/c/go/+/257644
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This CL revises the document of File.Fd that explicitly points
its user to runtime.SetFinalizer where contains the information
that a file descriptor could be closed in a finalizer and therefore
causes a failure in syscall.Write if runtime.KeepAlive is not invoked.
The CL also suggests an alternative of File.Fd towards File.SyscallConn.
Fixes#41505
Change-Id: I6816f0157add48b649bf1fb793cf19dcea6894b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/256899
Reviewed-by: Rob Pike <r@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
Allow Windows absolute paths, also fixed URI decoding on Windows.
Added a test, reorganized to make the test cleaner.
Also put some doc comments on exported functions that did not have them.
Fixes#41614.
Change-Id: I2871be0e5183fbd53ffb309896d6fe56c15a7727
Reviewed-on: https://go-review.googlesource.com/c/go/+/257677
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On netbsd/arm64 `uname -m` reports `evbarm` which is mapped to
gohostarch=arm. Fix this by checking for "aarch64" in `uname -p` output
to fix self-hosted build on netbsd/arm64.
Updates #30824
Change-Id: I0f0450ff35af0bec51aeec3b210143ba892216c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/257643
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Trust: Benny Siegert <bsiegert@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Directly wrap the getcwd implementation provided by libSystem.dylib on
darwin and use it to implement Getwd like on the BSDs. This allows to
drop the custom implementation using getAttrList and to merge the
implementation of Getwd for darwin and the BSDs in syscall_bsd.go.
Same as CL 257497 did for golang.org/x/sys/unix
Change-Id: If30390c4c17cd463bb8fdcb5465f40d6fa11f391
Reviewed-on: https://go-review.googlesource.com/c/go/+/257637
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Direct syscalls using syscall numbers are no longer supported on darwin
since Go 1.12, see https://golang.org/doc/go1.12#darwin. Also,
/usr/include/sys/syscall.h is no longer available on recent macOS
versions, so remove the generating script.
Change-Id: I8e2579c3d0e94a61fc041d06280149ec6ccf13e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/257638
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
