Since os.SEEK_SET was deprecated, use io.SeekStart instead.
Change-Id: I11ae496b071ab35412403ff73e52f3da73d5b120
Reviewed-on: https://go-review.googlesource.com/c/go/+/431096
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: hopehook <hopehook@golangcn.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Occasionally the signal will be sent to a Go thread, which will cause
the program to exit with SIGQUIT rather than SIGSEGV.
Add TestSignalForwardingGo to test the case where the signal is
expected to be delivered to a Go thread.
This is a roll forward of CL 419014 which was rolled back in CL 424954.
This CL differs from 419014 in that it skips TestSignalForwardingGo
on darwin-amd64.
Fixes#53907
Change-Id: I5df3fd610c068df3bd48d9b3d7a9379248b97999
Reviewed-on: https://go-review.googlesource.com/c/go/+/425002
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Occasionally the signal will be sent to a Go thread, which will cause
the program to exit with SIGQUIT rather than SIGSEGV.
Add TestSignalForwardingGo to test the case where the signal is
expected to be delivered to a Go thread.
Fixes#53907
Change-Id: Iaefb964c2be4a815c11c507fa89648f8a7740ba9
Reviewed-on: https://go-review.googlesource.com/c/go/+/419014
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Austin Clements <austin@google.com>
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Run-TryBot: Ian Lance Taylor <iant@google.com>
These changes are enough to pass all.bash using the
disabled linux-amd64-alpine builder via debugnewvm.
For #19938.
For #39857.
Change-Id: I7d160612259c77764b70d429ad94f0864689cdce
Reviewed-on: https://go-review.googlesource.com/c/go/+/419995
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Run-TryBot: Russ Cox <rsc@golang.org>
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Non-main packages in module mode should not be installed to
GOPATH/pkg, but due to #37015 they were installed there anyway.
This change switches the 'go install' command in TestPIE to instead
use 'go build', and switches TestInstall and TestCachedInstall
(which appear to be explicitly testing 'go install') to explicitly
request GOPATH mode (which does have a well-defined install target).
For #37015.
Change-Id: Ifb24657d2781d1e35cf40078e8e3ebf56aab9cc8
Reviewed-on: https://go-review.googlesource.com/c/go/+/416954
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These tests use a slice to represent the base C compiler command (with
flags). Appending to that slice can cause subtle aliasing bugs, such
as commands that silently corrupt the arguments of other concurrent
commands in parallel tests.
In this change, we explicitly reduce the capacity of the command slice
to force appends to it to always allocate unique new slices.
Fixes#49693
Change-Id: Ide466bf65f12cb6cead3dcba69f513cccb60a160
Reviewed-on: https://go-review.googlesource.com/c/go/+/383754
Trust: Bryan Mills <bcmills@google.com>
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Also check that executables exist immediately after building them
in parallel tests.
The parallel tests in this package occasionally fail with
"no such file or directory", implying that either the build
command failed to actually write out the binary or something
concurrently deleted it.
This is purely a shot in the dark, but I'm hoping that perhaps
the stderr output from one of these commands will shed some
light on the underlying failure mode.
For #49693
Change-Id: I2e768190c56053550879b89a3ac88c027d4741dd
Reviewed-on: https://go-review.googlesource.com/c/go/+/369034
Trust: Bryan Mills <bcmills@google.com>
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Fixes#49288
Change-Id: I7bfcbecbefa68871a3e556935a73f241fff44c0e
Reviewed-on: https://go-review.googlesource.com/c/go/+/360861
Trust: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Update references missed in CL 263142.
For #41190
Change-Id: I778760a6a69bd0440fec0848bdef539c9ccb4ee1
GitHub-Last-Rev: dda42b09ff
GitHub-Pull-Request: golang/go#42874
Reviewed-on: https://go-review.googlesource.com/c/go/+/273946
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The original Darwin/ARM port is gone. For ARM64, it works fine
without the flags on macOS/ARM64. Remove the flags.
Change-Id: I9cc00c49dd71376dd9c52abb78c2d8cec656b3db
Reviewed-on: https://go-review.googlesource.com/c/go/+/280157
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Introduce GOOS=ios for iOS systems. GOOS=ios matches "darwin"
build tag, like GOOS=android matches "linux" and GOOS=illumos
matches "solaris". Only ios/arm64 is supported (ios/amd64 is
not).
GOOS=ios and GOOS=darwin remain essentially the same at this
point. They will diverge at later time, to differentiate macOS
and iOS.
Uses of GOOS=="darwin" are changed to (GOOS=="darwin" || GOOS=="ios"),
except if it clearly means macOS (e.g. GOOS=="darwin" && GOARCH=="amd64"),
it remains GOOS=="darwin".
Updates #38485.
Change-Id: I4faacdc1008f42434599efb3c3ad90763a83b67c
Reviewed-on: https://go-review.googlesource.com/c/go/+/254740
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Reviewed-by: Austin Clements <austin@google.com>
This removes all conditions and conditional code (that I could find)
that depended on darwin/arm.
Fixes#35439 (since that only happened on darwin/arm)
Fixes#37611.
Change-Id: Ia4c32a5a4368ed75231075832b0b5bfb1ad11986
Reviewed-on: https://go-review.googlesource.com/c/go/+/227198
Run-TryBot: Austin Clements <austin@google.com>
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Reviewed-by: Cherry Zhang <cherryyz@google.com>
Also add a -testwork flag to facilitate debugging the test itself.
Three of the tests of this package invoked 'go install -i
-buildmode=c-archive' in order to generate an archive as well as
multiple C header files.
Unfortunately, the behavior of the '-i' flag is inappropriately broad
for this use-case: it not only generates the library and header files
(as desired), but also attempts to install a number of (unnecessary)
archive files for transitive dependencies to
GOROOT/pkg/$GOOS_$GOARCH_shared, which may not be writable — for
example, if GOROOT is owned by the root user but the test is being run
by a non-root user.
Instead, for now we generate the header files for transitive dependencies
separately by running 'go tool cgo -exportheader'.
In the future, we should consider how to improve the ergonomics for
generating transitive header files without coupling that to
unnecessary library installation.
Updates #28387
Updates #30316
Updates #35715
Change-Id: I3d483f84e22058561efe740aa4885fc3f26137b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/208117
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
macOS and iOS deliver SIGPIPE signals to the main thread and not
the thread that raised it by writing to a closed socket or pipe.
SIGPIPE signals can be suppressed for sockets with the SO_NOSIGPIPE
option, but there is no similar option for pipes. We have no other
choice but to never forward SIGPIPE on macOS.
This is a fixup of reverted CL 188297.
Fixes#33384
Change-Id: I09b258b078857ad3b22025bc2902d1b12d2afd92
Reviewed-on: https://go-review.googlesource.com/c/go/+/191785
Run-TryBot: Elias Naur <mail@eliasnaur.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
These tests take 20 seconds each to rebuild the entire world
in their respective modes. That's too much for short mode,
including all.bash on developer machines.
Keep doing it on builders and if someone runs 'go test' by hand
in that directory.
For #26473.
Change-Id: I3dc6955bc3aa7a20fd170efcde72a7d19b37bdbf
Reviewed-on: https://go-review.googlesource.com/c/go/+/177417
Run-TryBot: Russ Cox <rsc@golang.org>
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Like GOOS=android which implies the "linux" build tag, GOOS=illumos
implies the "solaris" build tag. This lets the existing ecosystem of
packages still work on illumos, but still permits packages to start
differentiating between solaris and illumos.
Fixes#20603
Change-Id: I8f4eabf1a66060538dca15d7658c1fbc6c826622
Reviewed-on: https://go-review.googlesource.com/c/go/+/174457
Run-TryBot: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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On darwin/amd64 the runtime method sigctxt.fixsigcode changes SIGSEGV
signals so that they are never marked SI_USER. CL 169120 changed the
signal handler to call fixsigcode even when the signal is delivered to
a non-Go thread. This breaks TestSignalForwardingExternal, so skip it.
Change-Id: I6740fb5a8f4f854ca69793537a983a696da3b495
Reviewed-on: https://go-review.googlesource.com/c/go/+/170446
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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I hope that this will fix the tests on iOS, but 'gomote create' isn't
giving me an instance I can test with. (Please patch and test before
approving.)
Updates #15919
Updates #30228
Change-Id: I1b7cd30d5b127a1ad3243b329fa005d229f69a24
Reviewed-on: https://go-review.googlesource.com/c/163726
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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Updates #30228
Change-Id: I830e3c83416b2e5744f30d1a903a74c50462716b
Reviewed-on: https://go-review.googlesource.com/c/163210
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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Reviewed-by: Jay Conrod <jayconrod@google.com>
We were using absolute paths in the #line directives in the export
header file. This makes the header file change if you move GOPATH.
The absolute paths aren't helpful for the final user, which is some C
program elsewhere.
Fixes#24945
Change-Id: I2da32c9b477df578bd5087435a03fe97abe462e3
Reviewed-on: https://go-review.googlesource.com/108315
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Fixes#14327
Much of the code is based on the linux/amd64 code that implements these
build modes, and code is shared where possible.
Change-Id: Ia510f2023768c0edbc863aebc585929ec593b332
Reviewed-on: https://go-review.googlesource.com/93875
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This CL makes "go install" behave the way many users expect:
install only the things named on the command line.
Future builds still run as fast, thanks to the new build cache (CL 75473).
To install dependencies as well (the old behavior), use "go install -i".
Actual definitions aside, what most users know and expect of "go install"
is that (1) it installs what you asked, and (2) it's fast, unlike "go build".
It was fast because it installed dependencies, but installing dependencies
confused users repeatedly (see for example #5065, #6424, #10998, #12329,
"go build" and "go test" so that they could be "fast" too, but that only
created new opportunities for confusion. We also had to add -installsuffix
and then -pkgdir, to allow "fast" even when dependencies could not be
installed in the usual place.
The recent introduction of precise content-based staleness logic means that
the go command detects the need for rebuilding packages more often than it
used to, with the consequence that "go install" rebuilds and reinstalls
dependencies more than it used to. This will create more new opportunities
for confusion and will certainly lead to more issues filed like the ones
listed above.
CL 75743 introduced a build cache, separate from the install locations.
That cache makes all operations equally incremental and fast, whether or
not the operation is "install" or "build", and whether or not "-i" is used.
Installing dependencies is no longer necessary for speed, it has confused
users in the past, and the more accurate rebuilds mean that it will confuse
users even more often in the future. This CL aims to end all that confusion
by not installing dependencies by default.
By analogy with "go build -i" and "go test -i", which still install
dependencies, this CL introduces "go install -i", which installs
dependencies in addition to the things named on the command line.
Fixes#5065.
Fixes#6424.
Fixes#10998.
Fixes#12329.
Fixes#18981.
Fixes#22469.
Another step toward #4719.
Change-Id: I3d7bc145c3a680e2f26416e182fa0dcf1e2a15e5
Reviewed-on: https://go-review.googlesource.com/75850
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Starting in gcc 6, -pie is passed to the linker by default
on some platforms, including ppc64le. If the objects
being linked are not built for -pie then in some cases the
executable could be in error. To avoid that problem, -no-pie
should be used with gcc to override the default -pie option
and generate a correct executable that can be run without error.
Fixes#22126
Change-Id: I4a052bba8b9b3bd6706f5d27ca9a7cebcb504c95
Reviewed-on: https://go-review.googlesource.com/70072
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
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Everything got a bit tangled together in b.action1.
Try to tease things apart again.
In general this is a refactoring of the existing code, with limited
changes to the effect of the code.
The main additional change is to complete a.Deps for link actions.
That list now directly contains all the inputs the linker will attempt
to read, eliminating the need for a transitive traversal of the entire
action graph to find those. The comepleteness of a.Deps will be
important when we eventually use it to decide whether an cached
action output can be reused.
all.bash passes, but it's possible I've broken some subtety of
buildmode=shared again. Certainly that code took the longest
to get working.
Change-Id: I34e849eda446dca45a9cfce02b07bec6edb6d0d4
Reviewed-on: https://go-review.googlesource.com/69831
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In PPC64 ELF files, the st_other field indicates the number of
prologue instructions between the global and local entry points.
We add the instructions in the compiler and assembler if -shared is used.
We were assuming that the instructions were present when building a
c-archive or PIE or doing dynamic linking, on the assumption that those
are the cases where the go tool would be building with -shared.
That assumption fails when using some other tool, such as Bazel,
that does not necessarily use -shared in exactly the same way.
This CL records in the object file whether a symbol was compiled
with -shared (this will be the same for all symbols in a given compilation)
and uses that information when setting the st_other field.
Fixes#20290.
Change-Id: Ib2b77e16aef38824871102e3c244fcf04a86c6ea
Reviewed-on: https://go-review.googlesource.com/43051
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This ensures that SIGPROF is handled correctly when using
runtime/pprof in a c-archive or c-shared library.
Separate profiler handling into pre-process changes and per-thread
changes. Simplify the Windows code slightly accordingly.
Fixes#18220.
Change-Id: I5060f7084c91ef0bbe797848978bdc527c312777
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Before this CL, Go programs in c-archive or c-shared buildmodes
would not handle SIGPIPE. That leads to surprising behaviour where
writes on a closed pipe or socket would raise SIGPIPE and terminate
the program. This CL changes the Go runtime to handle
SIGPIPE regardless of buildmode. In addition, SIGPIPE from non-Go
code is forwarded.
This is a refinement of CL 32796 that fixes the case where a non-default
handler for SIGPIPE is installed by the host C program.
Fixes#17393
Change-Id: Ia41186e52c1ac209d0a594bae9904166ae7df7de
Reviewed-on: https://go-review.googlesource.com/35960
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This reverts commit d24b57a6a1.
Reason for revert: Further complications arised (issue 18100). We'll try again in Go 1.9.
Change-Id: I5ca93d2643a4be877dd9c2d8df3359718440f02f
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Before this CL, Go programs in c-archive or c-shared buildmodes
would not handle SIGPIPE. That leads to surprising behaviour where
writes on a closed pipe or socket would raise SIGPIPE and terminate
the program. This CL changes the Go runtime to handle
SIGPIPE regardless of buildmode. In addition, SIGPIPE from non-Go
code is forwarded.
Fixes#17393
Updates #16760
Change-Id: I155e82020a03a5cdc627a147c27da395662c3fe8
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Fixes#17439
Change-Id: I7caa28519f38692f9ca306f0789cbb975fa1d7c4
Reviewed-on: https://go-review.googlesource.com/31112
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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This permits people to use -buildmode=c-archive to produce an archive
file that can be included in a PIE or shared library.
Change-Id: Ie340ee2f08bcff4f6fd1415f7d96d51ee3a7c9a1
Reviewed-on: https://go-review.googlesource.com/24180
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Buildmode c-archive now supports position independent code for
darwin/arm (in addition to darwin/arm64). Make PIC (-shared) the
default for both platforms in the default buildmode.
Without this change, gomobile will go install the standard library
into its separate package directory without PIC support.
Also add -shared to darwin/arm64 in buildmode c-archive, for
symmetry (darwin/arm64 always generates position independent code).
Fixes#15519
Change-Id: If27d2cbea8f40982e14df25da2703cbba572b5c6
Reviewed-on: https://go-review.googlesource.com/22920
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Run-TryBot: David Crawshaw <crawshaw@golang.org>
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Now that darwin/arm supports position independent code, allow the
binaries generated by the c-archive tests be position independent
(PIE) as well.
Change-Id: If0517f06e92349ada29a4e3e0a951f08b0fcc710
Reviewed-on: https://go-review.googlesource.com/22841
Reviewed-by: David Crawshaw <crawshaw@golang.org>
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After CL 22461, c-archive build on darwin/arm is by default compiled
with -shared and installed in pkg/darwin_arm_shared.
Fix build (2nd time...)
Change-Id: Ia2bb09bb6e1ebc9bc74f7570dd80c81d05eaf744
Reviewed-on: https://go-review.googlesource.com/22534
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
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After CL 22461, c-archive build on darwin/arm is by default compiled
with -shared, so update the install path.
Fix build.
Change-Id: Ie93dbd226ed416b834da0234210f4b98bc0e3606
Reviewed-on: https://go-review.googlesource.com/22507
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This reverts commit ab4c9298b8.
Sysmon critically depends on system timer resolution for retaking
of Ps blocked in system calls. See #14790 for an example
of a program where execution time goes from 2ms to 30ms if
timeBeginPeriod(1) is not used.
We can remove timeBeginPeriod(1) when we support UMS (#7876).
Update #14790
Change-Id: I362b56154359b2c52d47f9f2468fe012b481cf6d
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Add supporting code for runtime initialization, including both
32- and 64-bit x86 architectures.
Add .ctors section on Windows to PE .o files, and INITENTRY to .ctors
section to plug in to the GCC C/C++ startup initialization mechanism.
This allows the Go runtime to initialize itself. Add .text section
symbol for .ctor relocations. Note: This is unlikely to be useful for
MSVC-based toolchains.
Fixes#13494
Change-Id: I4286a96f70e5f5228acae88eef46e2bed95813f3
Reviewed-on: https://go-review.googlesource.com/18057
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
