It superficially looks like you're running the code from
https://github.com/go-vgo/robotgo/blob/master/examples/key/main.go.
However, The line number 136 in main.go in the backtrace doesn't make any
sense since the example code from the project only has 134 lines. Did you
modify the example code? If so you'll need to show us your modifications.
Does the example from that project work if you don't modify it?
Note that the SIGSEGV is because the code is trying to use the value 8 as
an address. So it isn't a typical null/nil pointer dereference. Possibly
you're passing something like a length of some object as an argument which
should be the address of some object.
On Thu, Dec 8, 2022 at 9:23 AM Gerald Parker <gpark1...@gmail.com> wrote:
> Hi all,
> I'm using go version 1.19.4 darwin-amd64
>
> I keep getting the following errors while trying to use a function from
> the robotgo package. I'm not experienced in C and could use some help
> trying to find the problem
>
> fatal error: unexpected signal during runtime execution
> [signal SIGSEGV: segmentation violation code=0x1 addr=0x8 pc=0x10016df88]
>
> runtime stack:
> runtime.throw({0x1001c32bc?, 0x0?})
> /Users/gp/go/go1.19.4/src/runtime/panic.go:1047 +0x5d
> fp=0x7ff7bfeff520 sp=0x7ff7bfeff4f0 pc=0x10003751d
> runtime.sigpanic()
> /Users/gp/go/go1.19.4/src/runtime/signal_unix.go:819 +0x369
> fp=0x7ff7bfeff570 sp=0x7ff7bfeff520 pc=0x10004cf89
>
> goroutine 1 [syscall]:
> runtime.cgocall(0x10016df60, 0xc000187ce8)
> /Users/gp/go/go1.19.4/src/runtime/cgocall.go:158 +0x5c
> fp=0xc000187cc0 sp=0xc000187c88 pc=0x100006d1c
> github.com/go-vgo/robotgo._Cfunc_keyCodeForChar(0x61)
> _cgo_gotypes.go:729 +0x47 fp=0xc000187ce8 sp=0xc000187cc0
> pc=0x10016c527
> github.com/go-vgo/robotgo.checkKeyCodes({0x1001b879b
> <http://github.com/go-vgo/robotgo.checkKeyCodes(%7B0x1001b879b>?, 0x1?})
> /Users/gp/Repositories/robotgo/key.go:344 +0x7f fp=0xc000187d40
> sp=0xc000187ce8 pc=0x10016c89f
> github.com/go-vgo/robotgo.keyTaps({0x1001b879b
> <http://github.com/go-vgo/robotgo.keyTaps(%7B0x1001b879b>, 0x1}, {0x0?,
> 0x1?, 0x0?}, 0x8?)
> /Users/gp/Repositories/robotgo/key.go:402 +0x4d fp=0xc000187d78
> sp=0xc000187d40 pc=0x10016ce2d
> github.com/go-vgo/robotgo.KeyTap({0x1001b879b
> <http://github.com/go-vgo/robotgo.KeyTap(%7B0x1001b879b>, 0x1}, {0x0?,
> 0x0, 0x0?})
> /Users/gp/Repositories/robotgo/key.go:519 +0x576 fp=0xc000187f28
> sp=0xc000187d78 pc=0x10016d436
> main.keyTap()
> /Users/gp/Repositories/robotgo/examples/key/main.go:47 +0x88
> fp=0xc000187f70 sp=0xc000187f28 pc=0x10016d908
> main.main()
> /Users/gp/Repositories/robotgo/examples/key/main.go:136 +0x17
> fp=0xc000187f80 sp=0xc000187f70 pc=0x10016d937
> runtime.main()
> /Users/gp/go/go1.19.4/src/runtime/proc.go:250 +0x212
> fp=0xc000187fe0 sp=0xc000187f80 pc=0x100039d32
> runtime.goexit()
> /Users/gp/go/go1.19.4/src/runtime/asm_amd64.s:1594 +0x1
> fp=0xc000187fe8 sp=0xc000187fe0 pc=0x100066861
>
> goroutine 2 [force gc (idle)]:
> runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
> /Users/gp/go/go1.19.4/src/runtime/proc.go:363 +0xd6
> fp=0xc000058fb0 sp=0xc000058f90 pc=0x10003a0f6
> runtime.goparkunlock(...)
> /Users/gp/go/go1.19.4/src/runtime/proc.go:369
> runtime.forcegchelper()
> /Users/gp/go/go1.19.4/src/runtime/proc.go:302 +0xad
> fp=0xc000058fe0 sp=0xc000058fb0 pc=0x100039f8d
> runtime.goexit()
> /Users/gp/go/go1.19.4/src/runtime/asm_amd64.s:1594 +0x1
> fp=0xc000058fe8 sp=0xc000058fe0 pc=0x100066861
> created by runtime.init.6
> /Users/gp/go/go1.19.4/src/runtime/proc.go:290 +0x25
>
> goroutine 3 [GC sweep wait]:
> runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
> /Users/gp/go/go1.19.4/src/runtime/proc.go:363 +0xd6
> fp=0xc000059790 sp=0xc000059770 pc=0x10003a0f6
> runtime.goparkunlock(...)
> /Users/gp/go/go1.19.4/src/runtime/proc.go:369
> runtime.bgsweep(0x0?)
> /Users/gp/go/go1.19.4/src/runtime/mgcsweep.go:278 +0x8e
> fp=0xc0000597c8 sp=0xc000059790 pc=0x10002738e
> runtime.gcenable.func1()
> /Users/gp/go/go1.19.4/src/runtime/mgc.go:178 +0x26 fp=0xc0000597e0
> sp=0xc0000597c8 pc=0x10001c246
> runtime.goexit()
> /Users/gp/go/go1.19.4/src/runtime/asm_amd64.s:1594 +0x1
> fp=0xc0000597e8 sp=0xc0000597e0 pc=0x100066861
> created by runtime.gcenable
> /Users/gp/go/go1.19.4/src/runtime/mgc.go:178 +0x6b
>
> goroutine 4 [GC scavenge wait]:
> runtime.gopark(0xc000024070?, 0x10020b4a8?, 0x1?, 0x0?, 0x0?)
> /Users/gp/go/go1.19.4/src/runtime/proc.go:363 +0xd6
> fp=0xc000059f70 sp=0xc000059f50 pc=0x10003a0f6
> runtime.goparkunlock(...)
> /Users/gp/go/go1.19.4/src/runtime/proc.go:369
> runtime.(*scavengerState).park(0x10031a420)
> /Users/gp/go/go1.19.4/src/runtime/mgcscavenge.go:389 +0x53
> fp=0xc000059fa0 sp=0xc000059f70 pc=0x100025433
> runtime.bgscavenge(0x0?)
> /Users/gp/go/go1.19.4/src/runtime/mgcscavenge.go:617 +0x45
> fp=0xc000059fc8 sp=0xc000059fa0 pc=0x100025a05
> runtime.gcenable.func2()
> /Users/gp/go/go1.19.4/src/runtime/mgc.go:179 +0x26 fp=0xc000059fe0
> sp=0xc000059fc8 pc=0x10001c1e6
> runtime.goexit()
> /Users/gp/go/go1.19.4/src/runtime/asm_amd64.s:1594 +0x1
> fp=0xc000059fe8 sp=0xc000059fe0 pc=0x100066861
> created by runtime.gcenable
> /Users/gp/go/go1.19.4/src/runtime/mgc.go:179 +0xaa
>
> goroutine 18 [finalizer wait]:
> runtime.gopark(0x10031a820?, 0xc0001024e0?, 0x0?, 0x0?, 0xc000058770?)
> /Users/gp/go/go1.19.4/src/runtime/proc.go:363 +0xd6
> fp=0xc000058628 sp=0xc000058608 pc=0x10003a0f6
> runtime.goparkunlock(...)
> /Users/gp/go/go1.19.4/src/runtime/proc.go:369
> runtime.runfinq()
> /Users/gp/go/go1.19.4/src/runtime/mfinal.go:180 +0x10f
> fp=0xc0000587e0 sp=0xc000058628 pc=0x10001b34f
> runtime.goexit()
> /Users/gp/go/go1.19.4/src/runtime/asm_amd64.s:1594 +0x1
> fp=0xc0000587e8 sp=0xc0000587e0 pc=0x100066861
> created by runtime.createfing
> /Users/gp/go/go1.19.4/src/runtime/mfinal.go:157 +0x45
>
> Process finished with the exit code 2
>
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> .
>
--
Kurtis Rader
Caretaker of the exceptional canines Junior and Hank
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