Truncate changes the size of the file. It does not change the I/O offset.
Fixes#29757
Change-Id: I1aa9223a86d6a8ce3c0efc3ac1d7d7647b77f589
Reviewed-on: https://go-review.googlesource.com/c/158117
Reviewed-by: Bryan C. Mills <bcmills@google.com>
golang.org/cl/157097 modified this comment, but left a trailing comma.
While at it, make the sentence a bit clearer.
Change-Id: I376dda4fd18ddbcae4485dd660a79b9f66ad6da4
Reviewed-on: https://go-review.googlesource.com/c/158037
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Recent CL 156398 extended TestNTNamespaceSymlink. But new code
fails, if user running the test does not have sufficient privilege
to create file symlink. Skip part of TestNTNamespaceSymlink, if
user cannot create symlink.
Fixes#29745
Change-Id: Ie4176429ba9dd98553ce9e91fd19851cc7353f42
Reviewed-on: https://go-review.googlesource.com/c/157917
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reuse the strict mechanism from FileLine for FuncForPC, so we don't
crash when asking the pcln table about bad pcs.
Fixes#29735
Change-Id: Iaffb32498b8586ecf4eae03823e8aecef841aa68
Reviewed-on: https://go-review.googlesource.com/c/157799
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The sortac command is no longer needed as of CL 157238, and
can be deleted. Its functionality has been directly integrated
into the new x/build/cmd/updatecontrib command. A previous version
of updatecontrib was the only user of sortac.
Updates #12042
Change-Id: If7442ebee11d05d095ff875a37eed3973c0fd9ca
Reviewed-on: https://go-review.googlesource.com/c/157257
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Normally this happens when combining a sign extension and a load. We
want the resulting combo-instruction to get the line number of the
load, not the line number of the sign extension.
For each rule, compute where we should get its line number by finding
a value on the match side that can fault. Use that line number for
all the new values created on the right-hand side.
Fixes#27201
Change-Id: I19b3c6f468fff1a3c0bfbce2d6581828557064a3
Reviewed-on: https://go-review.googlesource.com/c/156937
Reviewed-by: David Chase <drchase@google.com>
The logic for pulling a database connection from the DB pool should
proceed as follows: attempt to pull either a cached connection or
new connection N times in a loop. If each connection results
in a bad connection, then create a new connection (no cache).
Previously pulling a Conn from the pool, the last step also
looked at the cache, rather then always creating a new connection.
Fixes#29684
Change-Id: I8f436fd9b96eb35502a620ebe8da4ab89fb06a2e
Reviewed-on: https://go-review.googlesource.com/c/157637
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
CL 157638 updated TestLookupGmailTXT. However, this
test is failing on Plan 9, because the DNS resolver
(ndb/dns) only returns a single TXT record.
Updates #29722.
Change-Id: I01cd94e6167902361c3f5d615868f6f763a31fb1
Reviewed-on: https://go-review.googlesource.com/c/157737
Run-TryBot: David du Colombier <0intro@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This patch removes mention of GOCACHE=off from the help/docs.
It is no longer supported in Go 1.12, per the release notes.
Fixes#29680
Change-Id: I53ab15a62743f2e55ae1d8aa50629b1bf1ae32ad
GitHub-Last-Rev: 31e904f51d
GitHub-Pull-Request: golang/go#29681
Reviewed-on: https://go-review.googlesource.com/c/157517
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Currently, obj.Ctxt's symbol table does not distinguish between ABI0
and ABIInternal symbols. This is *almost* okay, since a given symbol
name in the final object file is only going to belong to one ABI or
the other, but it requires that the compiler mark a Sym as being a
function symbol before it retrieves its LSym. If it retrieves the LSym
first, that LSym will be created as ABI0, and later marking the Sym as
a function symbol won't change the LSym's ABI.
Marking a Sym as a function symbol before looking up its LSym sounds
easy, except Syms have a dual purpose: they are used just as interned
strings (every function, variable, parameter, etc with the same
textual name shares a Sym), and *also* to store state for whatever
package global has that name. As a result, it's easy to slip up and
look up an LSym when a Sym is serving as the name of a local variable,
and then later mark it as a function when it's serving as the global
with the name.
In general, we were careful to avoid this, but #29610 demonstrates one
case where we messed up. Because of on-demand importing from indexed
export data, it's possible to compile a method wrapper for a type
imported from another package before importing an init function from
that package. If the argument of the method is named "init", the
"init" LSym will be created as a data symbol when compiling the
wrapper, before it gets marked as a function symbol.
To fix this, we separate obj.Ctxt's symbol tables for ABI0 and
ABIInternal symbols. This way, the compiler will simply get a
different LSym once the Sym takes on its package-global meaning as a
function.
This fixes the above ordering issue, and means we no longer need to go
out of our way to create the "init" function early and mark it as a
function symbol.
Fixes#29610.
Updates #27539.
Change-Id: Id9458b40017893d46ef9e4a3f9b47fc49e1ce8df
Reviewed-on: https://go-review.googlesource.com/c/157017
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Worth mentioning because the results are not bit-for-bit identical.
This causes a test failure in github.com/fogleman/gg.
Updates #6794
Change-Id: I701f34927731fb5c658a1be271c04388e5e7e3f7
Reviewed-on: https://go-review.googlesource.com/c/157417
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This change makes mTreap's iterator type, treapIter, bidirectional
instead of unidirectional. This change helps support moving the find
operation on a treap to return an iterator instead of a treapNode, in
order to hide the details of the treap when accessing elements.
For #28479.
Change-Id: I5dbea4fd4fb9bede6e81bfd089f2368886f98943
Reviewed-on: https://go-review.googlesource.com/c/156918
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
CL 155597 attempted to fix#29372. But it failed to make all new
test cases pass. Also CL 155597 broke some existing code
(see #29449 for details).
Make small adjustment to CL 155597 that fixes both #29372 and #29449.
Suggested by Ian.
Updates #29372Fixes#29449
Change-Id: I9777a615514d3f152af5acb65fb1239e696607b6
Reviewed-on: https://go-review.googlesource.com/c/156398
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
On AIX, we don't need to be aware of any change on the protocol stack of
Linux kernel.
Change-Id: Ib8b14fa930acddb3bc720d401271e8daf567b784
Reviewed-on: https://go-review.googlesource.com/c/157298
Run-TryBot: Mikio Hara <mikioh.public.networking@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
To confirm this change with the go commaned, please run 'go doc net'
instead of 'go doc -all net'; the -all option surpresses BUG sections.
Change-Id: Iac7bc85fbef48e91d5ede16da0ce4a7ab8cae539
Reviewed-on: https://go-review.googlesource.com/c/157297
Run-TryBot: Mikio Hara <mikioh.public.networking@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit allows to cross-compiling aix/ppc64. The nosplit limit must
twice as large as on others platforms because of AIX syscalls.
The stack limit, especially stackGuardMultiplier, was set by cmd/dist
during the bootstrap and doesn't depend on GOOS/GOARCH target.
Fixes#29572
Change-Id: Id51e38885e1978d981aa9e14972eaec17294322e
Reviewed-on: https://go-review.googlesource.com/c/157117
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TestScript/get_unicode, TestScript/get_dotfiles and
TestScript/get_brace are failing on Plan 9 since they
expect a full-featured git command, while the git tool
has been emulated as a simple rc script on Plan 9.
This change skips tests using Git on Plan 9.
Fixes#29640.
Change-Id: Id7f6fdca552167f4631fe401f63167e5653daafa
Reviewed-on: https://go-review.googlesource.com/c/157119
Run-TryBot: David du Colombier <0intro@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
On Wasm, PC is not the instruction counter but the block ID. We
advance the PC only when necessary. In the case of sigpanic (used
in nil check), the panic stack trace expects the PC at the call
of sigpanic, not the next one. However, runtime.Caller subtracts
1 from the PC. To make both PC and PC-1 work (have the same line
number), we advance the PC by 2 at sigpanic.
Fixes#29632.
Change-Id: Ieb4d0bb9dc6a8103855a194e3d289f1db4bfb1e5
Reviewed-on: https://go-review.googlesource.com/c/157157
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Richard Musiol <neelance@gmail.com>
Run-TryBot: Richard Musiol <neelance@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The argument context string is only used in error messages. Don't format
the function AST into a string for every single argument of every single
call that is type-checked. Instead do it once per call (still not great,
but much much better).
Performance optimization.
Change-Id: Iec87f9ad34128d7b3eee58577ad37dbaa8e6db44
Reviewed-on: https://go-review.googlesource.com/c/157037
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The kqueue based netpoller always registers file descriptors with EVFILT_READ and EVFILT_WRITE.
However only EVFILT_READ notification is supported for regular files.
On FreeBSD a regular file is always reported as ready for writing, resulting in a busy wait.
On Darwin, Dragonfly, NetBSD and OpenBSD, a regular file is reported as ready for both reading and writing only once.
Updates #19093
Change-Id: If284341f60c6c2332fb5499637d4cfa7a4e26b7b
Reviewed-on: https://go-review.googlesource.com/c/156379
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Returning the innermost frame instead of the outermost
makes code that walks the results of runtime.Caller{,s}
still work correctly in the presence of mid-stack inlining.
Fixes#29582
Change-Id: I2392e3dd5636eb8c6f58620a61cef2194fe660a7
Reviewed-on: https://go-review.googlesource.com/c/156364
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
It was recently updated (again) to version 2018i. Since we're here,
wrap the paragraph at ~70 columns, like all the others.
Change-Id: I0a380385f34f1df1258a9f2af447234967422f37
Reviewed-on: https://go-review.googlesource.com/c/156857
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Change a link in the cgo section of the 1.12 release notes from
https://golang.org/cmd/cgo ...
to
/cmd/cgo/ ...
to uniform it with other links on the page, and to ensure correct
target when the page is displayed on tip.golang.org.
Change-Id: I7653a6ea15ce111a60929c7ae7e9fb0dc9515502
Reviewed-on: https://go-review.googlesource.com/c/156858
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
In 1.11 we stored "return addresses" in the result of runtime.Callers.
I changed that behavior in CL 152537 to store an address in the call
instruction itself. This CL reverts that part of 152537.
The change in 152537 was made because we now store pcs of inline marks
in the result of runtime.Callers as well. This CL will now store the
address of the inline mark + 1 in the results of runtime.Callers, so
that the subsequent -1 done in CallersFrames will pick out the correct
inline mark instruction.
This CL means that the results of runtime.Callers can be passed to
runtime.FuncForPC as they were before. There are a bunch of packages
in the wild that take the results of runtime.Callers, subtract 1, and
then call FuncForPC. This CL keeps that pattern working as it did in
1.11.
The changes to runtime/pprof in this CL are exactly a revert of the
changes to that package in 152537 (except the locForPC comment).
Update #29582
Change-Id: I04d232000fb482f0f0ff6277f8d7b9c72e97eb48
Reviewed-on: https://go-review.googlesource.com/c/156657
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The output refers to 'go help modules-get' but the actual command is 'go
help module-get', singular.
Change-Id: Ie001f4181d80d3bf1995af2f257bf789dad5b33f
GitHub-Last-Rev: ce9b90e9a6
GitHub-Pull-Request: golang/go#29605
Reviewed-on: https://go-review.googlesource.com/c/156737
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
The in-tree GDB is too old (6.1.1) on all the builders except the
FreeBSD 12.0 one, where it was removed from the base system.
Update #29508
Change-Id: Ib6091cd86440ea005f3f903549a0223a96621a6f
Reviewed-on: https://go-review.googlesource.com/c/156717
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
With gccgo, if a profiling signal arrives in certain time during
traceback, it may crash or hang. The fix is CL 156037 and
CL 156038. This CL adds a test.
Updates #29448.
Change-Id: Idb36af176b4865b8fb31a85cad185ed4c07ade0c
Reviewed-on: https://go-review.googlesource.com/c/156018
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The original port of Log1p incorrectly translated a ternary statement
so that a correction was only applied to one of the branches.
Fixes#29488
Change-Id: I035b2fc741f76fe7c0154c63da6e298b575e08a4
Reviewed-on: https://go-review.googlesource.com/c/156120
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
The check below can fail incorrectly if the buildid ends with '-p'.
! stderr 'compile.* -e .*-p [^z]'
This fix changes regular expressions to '-e.* -p' or '-N.* -p' instead
of '-e .*-p'. '-l' is no longer used because the compiler accepts
multiple flags starting with '-l' ('-e' and '-N' do not have this
problem), so there could be false matches.
Change-Id: I827c411de28624019a287f853acc9666e87cbfb9
Reviewed-on: https://go-review.googlesource.com/c/156327
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Mainly to pull in the bug fix in the structtag pass, where filenames
could sometimes be wrong. The bug wasn't present in 1.11, so it was a
regression and needs fixing before 1.12 is out.
Fixes#29130.
Change-Id: Ie9d9bff84873f34d748ebd8f056b6bc2ac822a55
Reviewed-on: https://go-review.googlesource.com/c/156378
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
The no-cgo validation hack lets in certificates from the root store that
are not marked as roots themselves, but are signed by a root; the cgo
path correctly excludes them. When TestSystemRoots compares cgo and
no-cgo results it tries to ignore them by ignoring certificates which
pass validation, but expired certificates were failing validation.
Letting through expired certs is harmless anyway because we will refuse
to build chains to them.
Fixes#29497
Change-Id: I341e50c0f3426de2763468672f9ba1d13ad6cfba
Reviewed-on: https://go-review.googlesource.com/c/156330
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
On macOS 10.11, but not 10.10 and 10.12, the C API returns 5 old root
CAs which are not in SystemRootCertificates.keychain (but seem to be in
X509Anchors and maybe SystemCACertificates.keychain, along with many
others that the C API does not return). They all are moribund 1024-bit
roots which are now gone from the Apple store.
Since we can't seem to find a way to make the no-cgo code see them,
ignore them rather than skipping the test.
Fixes#21416
Change-Id: I24ff0461f71cec953b888a60b05b99bc37dad2ed
Reviewed-on: https://go-review.googlesource.com/c/156329
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
