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path: root/src/runtime/os_linux_mips64x.go
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2021-02-20all: go fmt std cmd (but revert vendor)Russ Cox
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>
2020-12-09runtime: prevent stack growth after fork in runtime.sigfillsetHaoran Luo
This fixes the unexpected growth of stack in child process, which is caused by stack checking code in runtime.sigfillset called from runtime.sigset while clearing the signal handlers in child process. The redundant stack checking code is generated due to missing '//go:nosplit' directive that should be annotated for runtime.sigfillset. Fixes #43066 Updates #21314 Change-Id: I9483a962a4b0747074313991841e2440ee32198c Reviewed-on: https://go-review.googlesource.com/c/go/+/276173 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Austin Clements <austin@google.com>
2020-02-28internal/cpu: add MIPS64x feature detectionMeng Zhuo
Change-Id: Iacdad1758aa15e4703fccef38c08ecb338b95fd7 Reviewed-on: https://go-review.googlesource.com/c/go/+/200579 Run-TryBot: Meng Zhuo <mengzhuo1203@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2019-12-05runtime: mlock top of signal stack on Linux 5.2–5.4.1Austin Clements
Linux 5.2 introduced a bug that can corrupt vector registers on return from a signal if the signal stack isn't faulted in: https://bugzilla.kernel.org/show_bug.cgi?id=205663 This CL works around this by mlocking the top page of all Go signal stacks on the affected kernels. Fixes #35326, #35777 Change-Id: I77c80a2baa4780827633f92f464486caa222295d Reviewed-on: https://go-review.googlesource.com/c/go/+/209899 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: David Chase <drchase@google.com>
2019-11-12runtime: consistently seed fastrand state across archsCarlo Alberto Ferraris
Some, but not all, architectures mix in OS-provided random seeds when initializing the fastrand state. The others have TODOs saying we need to do the same. Lift that logic up in the architecture-independent part, and use memhash to mix the seed instead of a simple addition. Previously, dumping the fastrand state at initialization would yield something like the following on linux-amd64, where the values in the first column do not change between runs (as thread IDs are sequential and always start at 0), and the values in the second column, while changing every run, are pretty correlated: first run: 0x0 0x44d82f1c 0x5f356495 0x44f339de 0xbe6ac92a 0x44f91cd8 0x1da02dbf 0x44fd91bc 0x7cd59254 0x44fee8a4 0xdc0af6e9 0x4547a1e0 0x3b405b7e 0x474c76fc 0x9a75c013 0x475309dc 0xf9ab24a8 0x4bffd075 second run: 0x0 0xa63fc3eb 0x5f356495 0xa6648dc2 0xbe6ac92a 0xa66c1c59 0x1da02dbf 0xa671bce8 0x7cd59254 0xa70e8287 0xdc0af6e9 0xa7129d2e 0x3b405b7e 0xa7379e2d 0x9a75c013 0xa7e4c64c 0xf9ab24a8 0xa7ecce07 With this change, we get initial states that appear to be much more unpredictable, both within the same run as well as between runs: 0x11bddad7 0x97241c63 0x553dacc6 0x2bcd8523 0x62c01085 0x16413d92 0x6f40e9e6 0x7a138de6 0xa4898053 0x70d816f0 0x5ca5b433 0x188a395b 0x62778ca9 0xd462c3b5 0xd6e160e4 0xac9b4bd 0xb9571d65 0x597a981d Change-Id: Ib22c530157d74200df0083f830e0408fd4aaea58 Reviewed-on: https://go-review.googlesource.com/c/go/+/203439 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2018-02-17runtime: remove unused getrlimit functionTobias Klauser
Follow CL 93655 which removed the (commented-out) usage of this function. Also remove unused constant _RLIMIT_AS and type rlimit. Change-Id: Ifb6e6b2104f4c2555269f8ced72bfcae24f5d5e9 Reviewed-on: https://go-review.googlesource.com/94775 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
2016-11-15runtime: add support files for linux/mips{,le} portVladimir Stefanovic
Only exe buildmode without cgo supported. Change-Id: Id104a79a99d3285c04db00fd98b8affa94ea3c37 Reviewed-on: https://go-review.googlesource.com/31487 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-09-27runtime: remove sigmask type, use sigset insteadIan Lance Taylor
The OS-independent sigmask type was not pulling its weight. Replace it with the OS-dependent sigset type. This requires adding an OS-specific sigaddset function, but permits removing the OS-specific sigmaskToSigset function. Change-Id: I43307b512b0264ec291baadaea902f05ce212305 Reviewed-on: https://go-review.googlesource.com/29950 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-09-24runtime: unify some signal handling functionsIan Lance Taylor
Unify the OS-specific versions of msigsave, msigrestore, sigblock, updatesigmask, and unblocksig into single versions in signal_unix.go. To do this, make sigprocmask work the same way on all systems, which required adding a definition of sigprocmask for linux and openbsd. Also add a single OS-specific function sigmaskToSigset. Change-Id: I7cbf75131dddb57eeefe648ef845b0791404f785 Reviewed-on: https://go-review.googlesource.com/29689 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-08-30runtime: rename fastrand1 to fastrandJosh Bleecher Snyder
Change-Id: I37706ff0a3486827c5b072c95ad890ea87ede847 Reviewed-on: https://go-review.googlesource.com/28210 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-05-06runtime: get randomness from AT_RANDOM AUXV on linux/mips64xShenghou Ma
Fixes #15148. Change-Id: If3b628f30521adeec1625689dbc98aaf4a9ec858 Reviewed-on: https://go-review.googlesource.com/22811 Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Minux Ma <minux@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-04-06os: consolidate os{1,2}_*.go filesBrad Fitzpatrick
Change-Id: I463ca59f486b2842f67f151a55f530ee10663830 Reviewed-on: https://go-review.googlesource.com/21568 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Dave Cheney <dave@cheney.net> Reviewed-by: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-11-12runtime: added go files for linux/mips64{,le} supportYao Zhang
Change-Id: I14b537922b97d4bce9e0523d98a822da906348f1 Reviewed-on: https://go-review.googlesource.com/14447 Reviewed-by: Minux Ma <minux@golang.org>
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