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* all: use new "unix" build tag where appropriateIan Lance Taylor2022-03-291-1/+1
| | | | | | | | | | For #20322 For #51572 Change-Id: Id0b4799d097d01128e98ba4cc0092298357bca45 Reviewed-on: https://go-review.googlesource.com/c/go/+/389935 Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
* all: go fix -fix=buildtag std cmd (except for bootstrap deps, vendor)Russ Cox2021-10-281-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | When these packages are released as part of Go 1.18, Go 1.16 will no longer be supported, so we can remove the +build tags in these files. Ran go fix -fix=buildtag std cmd and then reverted the bootstrapDirs as defined in src/cmd/dist/buildtool.go, which need to continue to build with Go 1.4 for now. Also reverted src/vendor and src/cmd/vendor, which will need to be updated in their own repos first. Manual changes in runtime/pprof/mprof_test.go to adjust line numbers. For #41184. Change-Id: Ic0f93f7091295b6abc76ed5cd6e6746e1280861e Reviewed-on: https://go-review.googlesource.com/c/go/+/344955 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com>
* all: go fmt std cmd (but revert vendor)Russ Cox2021-02-201-0/+1
| | | | | | | | | | | | | | | | Make all our package sources use Go 1.17 gofmt format (adding //go:build lines). Part of //go:build change (#41184). See https://golang.org/design/draft-gobuild Change-Id: Ia0534360e4957e58cd9a18429c39d0e32a6addb4 Reviewed-on: https://go-review.googlesource.com/c/go/+/294430 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
* runtime, syscall: use local cache for Setenv/Getenv in Plan 9Richard Miller2020-06-191-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In os.Getenv and os.Setenv, instead of directly reading and writing the Plan 9 environment device (which may be shared with other processes), use a local copy of environment variables cached at the start of execution. This gives the same semantics for Getenv and Setenv as on other operating systems which don't share the environment, making it more likely that Go programs (for example the build tests) will be portable to Plan 9. This doesn't preclude writing non-portable Plan 9 Go programs which make use of the shared environment semantics (for example to have a command which exports variable definitions to the parent shell). To do this, use ioutil.ReadFile("/env/"+key) and ioutil.WriteFile("/env/"+key, value, 0666) in place of os.Getenv(key) and os.Setenv(key, value) respectively. Note that CL 5599054 previously added env cacheing, citing efficiency as the reason. However it made the cache write-through, with Setenv changing the shared environment as well as the cache (so not consistent with Posix semantics), and Clearenv breaking the sharing of the environment between the calling thread and other threads (leading to unpredictable behaviour). Because of these inconsistencies (#8849), CL 158970045 removed the cacheing again. This CL restores cacheing but without write-through. The local cache is initialised at start of execution, manipulated by the standard functions in syscall/env_unix.go to ensure the same semantics, and exported only when exec'ing a new program. Fixes #34971 Fixes #25234 Fixes #19388 Updates #38772 Change-Id: I2dd15516d27414afaf99ea382f0e00be37a570c3 Reviewed-on: https://go-review.googlesource.com/c/go/+/236520 Run-TryBot: David du Colombier <0intro@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Fazlul Shahriar <fshahriar@gmail.com> Reviewed-by: David du Colombier <0intro@gmail.com>
* all: remove the nacl port (part 1)Brad Fitzpatrick2019-10-091-1/+1
| | | | | | | | | | | | | | | | | | You were a useful port and you've served your purpose. Thanks for all the play. A subsequent CL will remove amd64p32 (including assembly files and toolchain bits) and remaining bits. The amd64p32 removal will be separated into its own CL in case we want to support the Linux x32 ABI in the future and want our old amd64p32 support as a starting point. Updates #30439 Change-Id: Ia3a0c7d49804adc87bf52a4dea7e3d3007f2b1cd Reviewed-on: https://go-review.googlesource.com/c/go/+/199499 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
* syscall: add AIX operating systemClément Chigot2018-10-101-1/+1
| | | | | | | | | | | | | | | This commit adds AIX operating system to syscall package for ppc64 architecture. It also adds the file syscall_aix.go in the runtime package for syscalls needed during fork and exec. Updates: #25893 Change-Id: I301b1051b178a3efb7bbc39cdbd8e00b594d65ef Reviewed-on: https://go-review.googlesource.com/c/138720 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
* os: add js/wasm architectureRichard Musiol2018-06-011-1/+1
| | | | | | | | | | | | | | This commit adds the js/wasm architecture to the os package. Access to the actual file system is supported through Node.js. Updates #18892 Change-Id: I6fa642fb294ca020b2c545649d4324d981aa0408 Reviewed-on: https://go-review.googlesource.com/109977 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
* all: make copyright headers consistent with one space after periodBrad Fitzpatrick2016-03-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | This is a subset of https://golang.org/cl/20022 with only the copyright header lines, so the next CL will be smaller and more reviewable. Go policy has been single space after periods in comments for some time. The copyright header template at: https://golang.org/doc/contribute.html#copyright also uses a single space. Make them all consistent. Change-Id: Icc26c6b8495c3820da6b171ca96a74701b4a01b0 Reviewed-on: https://go-review.googlesource.com/20111 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
* os, syscall: add UnsetenvBrad Fitzpatrick2014-10-011-8/+36
| | | | | | | | | | | | | Also address a TODO, making Clearenv pass through to cgo. Based largely on Minux's earlier https://golang.org/cl/82040044 Fixes #6423 LGTM=iant, alex.brainman, r, rsc R=rsc, iant, r, alex.brainman CC=golang-codereviews https://golang.org/cl/148370043
* cmd/cc, cmd/ld, runtime: disallow conservative data/bss objectsRuss Cox2014-09-241-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In linker, refuse to write conservative (array of pointers) as the garbage collection type for any variable in the data/bss GC program. In the linker, attach the Go type to an already-read C declaration during dedup. This gives us Go types for C globals for free as long as the cmd/dist-generated Go code contains the declaration. (Most runtime C declarations have a corresponding Go declaration. Both are bss declarations and so the linker dedups them.) In cmd/dist, add a few more C files to the auto-Go-declaration list in order to get Go type information for the C declarations into the linker. In C compiler, mark all non-pointer-containing global declarations and all string data as NOPTR. This allows them to exist in C files without any corresponding Go declaration. Count C function pointers as "non-pointer-containing", since we have no heap-allocated C functions. In runtime, add NOPTR to the remaining pointer-containing declarations, none of which refer to Go heap objects. In runtime, also move os.Args and syscall.envs data into runtime-owned variables. Otherwise, in programs that do not import os or syscall, the runtime variables named os.Args and syscall.envs will be missing type information. I believe that this CL eliminates the final source of conservative GC scanning in non-SWIG Go programs, and therefore... Fixes #909. LGTM=iant R=iant CC=golang-codereviews https://golang.org/cl/149770043
* build: move package sources from src/pkg to srcRuss Cox2014-09-081-0/+119
Preparation was in CL 134570043. This CL contains only the effect of 'hg mv src/pkg/* src'. For more about the move, see golang.org/s/go14nopkg.
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