panic: variable cons not bound

[lbuczkow]

A fresh build on mac (Ventura) does not work:

~/shen % git clone https://github.com/tiancaiamao/shen-go.git
Cloning into 'shen-go'...
remote: Enumerating objects: 2422, done.
remote: Counting objects: 100% (161/161), done.
remote: Compressing objects: 100% (105/105), done.
remote: Total 2422 (delta 83), reused 108 (delta 55), pack-reused 2261
Receiving objects: 100% (2422/2422), 5.09 MiB | 1.12 MiB/s, done.
Resolving deltas: 100% (1455/1455), done.

~/shen % cd shen-go

~/shen/shen-go % go version
go version go1.19.3 darwin/amd64

~/shen/shen-go % make all
go install github.com/tiancaiamao/shen-go/cmd/kl
go build -o shen github.com/tiancaiamao/shen-go/cmd/shen

~/shen/shen-go % ./shen
panic: variable cons not bound

goroutine 1 [running]:
github.com/tiancaiamao/shen-go/klambda.PrimNS1Value(0xc0003c3940?)
/Users/lb/shen/shen-go/klambda/primitives.go:761 +0xa8
main.glob..func3(0xc000065240)
/Users/lb/shen/shen-go/cmd/shen/kl.go:5029 +0x508
github.com/tiancaiamao/shen-go/klambda.myCall(0xc000065240)
/Users/lb/shen/shen-go/klambda/inst.go:287 +0xd6
github.com/tiancaiamao/shen-go/klambda.(*ControlFlow).Call(0xc000065240, 0xc000064000?, {0x0, 0x0, 0x100714780?})
/Users/lb/shen/shen-go/klambda/inst.go:263 +0x1d3
github.com/tiancaiamao/shen-go/klambda.Call(...)
/Users/lb/shen/shen-go/klambda/inst.go:252
main.regist(0x1007899a1?)
/Users/lb/shen/shen-go/cmd/shen/main.go:40 +0x151
main.main()
/Users/lb/shen/shen-go/cmd/shen/main.go:74 +0x1f2

[tiancaiamao]

You can try a release version, such as

git checkout v1.0
make all

master is not stable.

[lbuczkow]

It did not build out of the box (go version go1.19.3 darwin/amd64):

cora/types.go:277:11: undefined: syscall.MAP_ANONYMOUS

Built successfully after changing the line 277 to:

syscall.MAP_ANON|syscall.MAP_PRIVATE /flags int/)

I am looking forward to shen-go hopefully updated to kernel 33.

[tiancaiamao]

It did not build out of the box (go version go1.19.3 darwin/amd64):

cora/types.go:277:11: undefined: syscall.MAP_ANONYMOUS

Built successfully after changing the line 277 to:

syscall.MAP_ANON|syscall.MAP_PRIVATE /flags int/)

Oops ... the syscall syscall.MAP_ANONYMOUS is not defined in darwin/amd64, I use linux

syscall.MAP_ANONYMOUS is a kind of trick I played in to past to avoid integer allocation.
That is, use a virtial address range [fixnumBaseAddr, fixnumEndAddr) to represent fixnum.
A unsafe pointer could be a fixnum, or a heap allocated Obj, depend on whether it locates in the [fixnumBaseAddr, fixnumEndAddr) range. That virtual address range does not need a physical mem mapping, so I use the mmap to play the trick.

I realized that use mmap is not necessary, because the OS already use virtual memory address
var mem [1<<20]byte does not make physical allocation if the data is not touched.

Try the latest master, I fix the build now.

I am looking forward to shen-go hopefully updated to kernel 33.

I'll do it later. @lbuczkow

[tiancaiamao]

I've created another issue for the upgrade #45, so this one can be closed.