On DragonFly mmap with MAP_STACK returns the top of the region, not
the bottom. Rather than try to cope, just don't use the flag anywhere.
Fixes#23061
Change-Id: Ib5df4dd7c934b3efecfc4bc87f8989b4c37555d7
Reviewed-on: https://go-review.googlesource.com/83035
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
The package unsafe docs say it's safe to convert an unsafe.Pointer to
uintptr in the argument list to an assembly function, but it was
erroneously only detecting normal pointers converted to unsafe.Pointer
and then to intptr.
Fixes#23051.
Change-Id: Id1be19f6d8f26f2d17ba815191717d2f4f899732
Reviewed-on: https://go-review.googlesource.com/82817
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This essentially applies https://golang.org/cl/81636 to the net package.
The full truth seems too complicated to write in this method's doc, so
I'm going with a simple half truth.
The full truth is that File returns the descriptor in blocking mode,
because that is historically how it worked, and existing programs
would be surprised if the descriptor is suddenly non-blocking. On Unix
systems whether a socket is non-blocking or not is a property of the
underlying file description, not of a particular file descriptor, so
changing the returned descriptor to blocking mode also changes the
existing socket to blocking mode. Blocking mode works fine, althoug I/O
operations now take up a thread. SetDeadline and friends rely on the
runtime poller, and the runtime poller only works if the descriptor is
non-blocking. So it's correct that calling File disables SetDeadline.
The other half of the truth is that if the program is willing to work
with a non-blocking descriptor, it could call
syscall.SetNonblock(f.Fd(), true) to change the descriptor, and
the original socket, to non-blocking mode. At that point SetDeadline
would start working again. I tried to write that in a way that is
short and comprehensible but failed. Since we now have the RawConn
approach to frobbing the descriptor, and hopefully most people can use
that rather than calling File, I decided to punt.
Updates #22934Fixes#21862
Change-Id: If269da762f6f5a88c334e7b6d6f3998f7e10b11e
Reviewed-on: https://go-review.googlesource.com/82915
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This test has been getting occasional timeouts on the race builder.
The point of the test is whether a file descriptor leaks, not whether
the connection occurs in a certain amount of time. So use a very large
timeout. The connection is normally fast and the timeout doesn't matter.
Updates #13324
Change-Id: Ie1051c4a0be1fca4e63b1277101770be0cdae512
Reviewed-on: https://go-review.googlesource.com/82916
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The jobject type is declared as a pointer, but some JVMs
(Dalvik, ART) store non-pointer values in them. In Go, we must
use uintptr instead of a real pointer for these types.
This is similar to the CoreFoundation types on Darwin which
were "fixed" in CL 66332.
Update #22906
Update #21897
RELNOTE=yes
Change-Id: I0d4c664501d89a696c2fb037c995503caabf8911
Reviewed-on: https://go-review.googlesource.com/81876
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This error message should reference t2, not t1.
Change-Id: I2e42b8335ca9367a1fb7f76c38a1bcf8f32a2bf3
Reviewed-on: https://go-review.googlesource.com/82816
Reviewed-by: Gabriel Aszalos <gabriel.aszalos@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Gabriel Aszalos <gabriel.aszalos@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This was originally done in https://golang.org/cl/31359 but partially
undone (apparently unintentionally) in https://golang.org/cl/34310
Fix it, and update tests to ensure the error is unrecoverable.
Fixes#23039
Change-Id: I923ebd613a05e67d8acce77f4a68c64c8574faa6
Reviewed-on: https://go-review.googlesource.com/82656
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
The DNS code can start goroutines and not wait for them to complete.
This does no harm, but in tests this can cause a race condition with
the test hooks that are installed and unintalled around the tests.
Add a WaitGroup that tests of DNS can use to avoid the race.
Fixes#21090
Change-Id: I6c1443a9c2378e8b89d0ab1d6390c0e3e726b0ce
Reviewed-on: https://go-review.googlesource.com/82795
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
If (*Template).New replaces an existing template, reset the
existing template that is going to be replaced so that any
later attempt to execute this orphaned template will fail.
Fixes#22780
Change-Id: I0e058f42c1542c86d19dc5f6c4e1e859e670a4a2
Reviewed-on: https://go-review.googlesource.com/78542
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Pointer arithemetic is done mod 2^32 on 386, so we can just
drop the high bits of any large constant offsets.
The bounds check will make sure wraparounds are never observed.
Fixes#21655
Change-Id: I68ae5bbea9f02c73968ea2b21ca017e5ecb89223
Reviewed-on: https://go-review.googlesource.com/82675
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
I can reproduce with a very short timeout (fractions of a millisecond)
combined with -race.
But given that this is inherently sensitive to actual time, add a
testing mechanism to retry with increasingly large times to compensate
for busy buidlers. This also means the test is usually faster now,
too, since we can start with smaller durations.
Fixes#19608
Change-Id: I3a222464720195849da768e9801eb7b43baa4aeb
Reviewed-on: https://go-review.googlesource.com/82595
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
It's 32-bit binaries that fail for reasons unknown on 64-bit kernels.
Change-Id: Ib410af0491160e3ed8d32118966142516123db2c
Reviewed-on: https://go-review.googlesource.com/82655
Reviewed-by: Andrew Bonventre <andybons@golang.org>
The DWARF inline info generation code was using file/line/column (from
src.Pos) as a means of matching up pre- and post-optimization variable
nodes. This turns out to be problematic since it looks as though
distinct formals on the same line can be assigned the same column
number. Work around this issue by adding variable names to the
disambiguation code. Added a testpoint to the linker DWARF test that
checks to make sure each abstract origin offset of distinct within a
given DWARF DW_AT_inlined_routine body.
Fixes#23020.
Change-Id: Ie09bbe01dc60822d84d4085547b138e644036fb3
Reviewed-on: https://go-review.googlesource.com/82396
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This CL reverts CL 76851 and takes a different approach to #21357.
The changes in encode.go and encode_test.go are reverts that
rolls back the changed behavior in CL 76851 where
embedded pointers to unexported struct types were
unilaterally ignored in both marshal and unmarshal.
Instead, these fields are handled as before with the exception that
it returns an error when Unmarshal is unable to set an unexported field.
The behavior of Marshal is now unchanged with regards to #21357.
This policy maintains the greatest degree of backwards compatibility
and avoids silently discarding data the user may have expected to be present.
Fixes#21357
Change-Id: I7dc753280c99f786ac51acf7e6c0246618c8b2b1
Reviewed-on: https://go-review.googlesource.com/82135
Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Fixed by CL 76025 yesterday, without realizing it:
the testshared and testplugin builds of separate iface_i
packages were colliding incorrectly in the cache.
Including the build directory fixes that.
Fixes#22571.
Change-Id: Id8193781c67c3150823dc1f48eae781dfe3702fb
Reviewed-on: https://go-review.googlesource.com/76371
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
There are some basic tests in the packages implementing the hashes,
but this one is meant to be comprehensive for the standard library
as a whole.
Most importantly, it locks in the current representations and makes
sure that they do not change from release to release (and also, as a
result, that future releases can parse the representations generated
by older releases).
The crypto/* MarshalBinary implementations are being changed
in this CL to write only d.x[:d.nx] to the encoding, with zeros for
the remainder of the slice d.x[d.nx:]. The old encoding wrote the
whole d.x, but that exposed an internal detail: whether d.x is
cleared after a full buffer is accumulated, and also whether d.x was
used at all for previous blocks (consider 1-byte writes vs 1024-byte writes).
The new encoding writes only what the decoder needs to know,
nothing more.
In fact the old encodings were arguably also a security hole,
because they exposed data written even before the most recent
call to the Reset method, data that clearly has no impact on the
current hash and clearly should not be exposed. The leakage
is clearly visible in the old crypto/sha1 golden test tables also
being modified in this CL.
Change-Id: I4e9193a3ec5f91d27ce7d0aa24c19b3923741416
Reviewed-on: https://go-review.googlesource.com/82136
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
String method comments should explain what they do,
not that they are attempting to implement fmt.Stringer.
Change-Id: If51dd1ff2f0c2f9ef9dca569bfa0c3914be2e8fe
Reviewed-on: https://go-review.googlesource.com/82081
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The docs make it seem like they are all things a single object
would implement. That's true of Driver and DriverContext,
but Connector is really something else. Attempt to clarify.
Change-Id: I8fdf1cff855a0fbe37ea22720c082045c719a267
Reviewed-on: https://go-review.googlesource.com/82082
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
Go 1.10 is adding new API MarshalPKCS1PublicKey and
ParsePKCS1PublicKey for converting rsa.PublicKeys.
Even though we'd prefer that users did not, check that
if users call asn1.Marshal and asn1.Unmarshal directly instead,
they get the same results. We know that code exists in the
wild that depends on this.
Change-Id: Ia385d6954fda2eba7da228dc42f229b6839ef11e
Reviewed-on: https://go-review.googlesource.com/82080
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Originally these routines could not fail except by
returning errors from the underlying writer.
Then we realized that header keys containing colons
needed to be rejected, and we started returning an error
from Encode. But that only happens after writing a
partial PEM block to the underlying writer, which is
unfortunate, but at least it was undocumented.
CL 77790 then documented this unfortunate behavior.
Instead of documenting unfortunate behavior, fix it.
Change-Id: Ic7467a576c4cecd16a99138571a1269cc4f96204
Reviewed-on: https://go-review.googlesource.com/82076
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
