go/src/runtime/lfstack_64bit.go, branch json-isValidNumber

runtime: support riscv64 SV57 mode

2022-08-04T05:33:40Z

riscv64 has SV57 mode when user-space VA is 56 bits. Linux kernel recently got support for this mode and Go binaries started crashing as: runtime: lfstack.push invalid packing: node=0xffffff5908a940 cnt=0x1 packed=0xffff5908a9400001 -> node=0xffff5908a940 Adjust lfstack code to use only 8 top bits of pointers on riscv64. For context see: https://groups.google.com/g/syzkaller-bugs/c/lU0GQTZoNQQ/m/O_c3vmE3AAAJ Update #54104 Change-Id: Ib5d3d6a79c0c6eddf11618d73fcc8bc1832a9c25 Reviewed-on: https://go-review.googlesource.com/c/go/+/409055 Reviewed-by: Joel Sing Reviewed-by: Meng Zhuo Reviewed-by: Michael Knyszek Reviewed-by: Cherry Mui

runtime: add build tag for common support on linux/loong64

2022-05-20T15:12:37Z

Contributors to the loong64 port are: Weining Lu Lei Wang Lingqin Gong Xiaolin Zhao Meidan Li Xiaojuan Zhai Qiyuan Pu Guoqi Chen This port has been updated to Go 1.15.6: https://github.com/loongson/go Updates #46229 Change-Id: Ide01fb8a39fe3e890f6cbc5d28f4a1d47eb5d79b Reviewed-on: https://go-review.googlesource.com/c/go/+/368081 TryBot-Result: Gopher Robot Reviewed-by: Michael Knyszek Auto-Submit: Ian Lance Taylor Reviewed-by: Ian Lance Taylor Run-TryBot: Ian Lance Taylor

all: go fix -fix=buildtag std cmd (except for bootstrap deps, vendor)

2021-10-28T18:17:57Z

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 Run-TryBot: Russ Cox TryBot-Result: Go Bot Reviewed-by: Bryan C. Mills

all: go fmt std cmd (but revert vendor)

2021-02-20T03:54:50Z

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 Run-TryBot: Russ Cox TryBot-Result: Go Bot Reviewed-by: Jason A. Donenfeld Reviewed-by: Ian Lance Taylor

runtime: add support for linux/riscv64

2020-01-19T14:04:09Z

Based on riscv-go port. Updates #27532 Change-Id: If522807a382130be3c8d40f4b4c1131d1de7c9e3 Reviewed-on: https://go-review.googlesource.com/c/go/+/204632 Run-TryBot: Joel Sing TryBot-Result: Gobot Gobot Reviewed-by: Keith Randall

runtime: handle 64bits addresses for AIX

2018-11-26T14:06:28Z

This commit allows the runtime to handle 64bits addresses returned by mmap syscall on AIX. Mmap syscall returns addresses on 59bits on AIX. But the Arena implementation only allows addresses with less than 48 bits. This commit increases the arena size up to 1<<60 for aix/ppc64. Update: #25893 Change-Id: Iea72e8a944d10d4f00be915785e33ae82dd6329e Reviewed-on: https://go-review.googlesource.com/c/138736 Reviewed-by: Austin Clements

runtime: add js/wasm architecture

2018-05-08T00:17:34Z

This commit adds the js/wasm architecture to the runtime package. Currently WebAssembly has no support for threads yet, see https://github.com/WebAssembly/design/issues/1073. Because of that, there is no preemption of goroutines and no sysmon goroutine. Design doc: https://docs.google.com/document/d/131vjr4DH6JFnb-blm_uRdaC0_Nv3OUwjEY5qVCxCup4 About WebAssembly assembly files: https://docs.google.com/document/d/1GRmy3rA4DiYtBlX-I1Jr_iHykbX8EixC3Mq0TCYqbKc Updates #18892 Change-Id: I7f12d21b5180500d55ae9fd2f7e926a1731db391 Reviewed-on: https://go-review.googlesource.com/103877 Run-TryBot: Brad Fitzpatrick TryBot-Result: Gobot Gobot Reviewed-by: Austin Clements

runtime: clarify address space limit constants and comments

2018-02-21T20:32:36Z

Now that we support the full non-contiguous virtual address space of amd64 hardware, some of the comments and constants related to this are out of date. This renames memLimitBits to heapAddrBits because 1< TryBot-Result: Gobot Gobot Reviewed-by: Rick Hudson

runtime: move comment about address space sizes to malloc.go

2018-02-15T21:12:25Z

Currently there's a detailed comment in lfstack_64bit.go about address space limitations on various architectures. Since that's now relevant to malloc, move it to a more prominent place in the documentation for memLimitBits. Updates #10460. Change-Id: If9708291cf3a288057b8b3ba0ba6a59e3602bbd6 Reviewed-on: https://go-review.googlesource.com/85889 Run-TryBot: Austin Clements TryBot-Result: Gobot Gobot Reviewed-by: Rick Hudson

runtime: expand/update lfstack address space assumptions

2018-02-15T21:12:09Z

I was spelunking Linux's address space code and found that some of the information about maximum virtual addresses in lfstack's comments was out of date. This expands and updates the comment. Change-Id: I9f54b23e6b266b3c5cc20259a849231fb751f6e7 Reviewed-on: https://go-review.googlesource.com/85875 Run-TryBot: Austin Clements TryBot-Result: Gobot Gobot Reviewed-by: Rick Hudson