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tinygo-org / tinygo

Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.
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Crash when compiling with a large number of embedded files #4348

Open kkoreilly opened 2 months ago

kkoreilly commented 2 months ago

When compiling this program with tinygo build -target wasm -o app.wasm on macOS:

package main

import _ "cogentcore.org/core/icons"

func main() {}

The compiler crashes with this error:

panic: runtime error: slice bounds out of range [::4124] with length 1024

goroutine 1 [running]:
github.com/tinygo-org/tinygo/builder.RunTool({0x16d01938a, 0x7}, {0x140000c8020?, 0x101b?, 0x1073929dd?})
        /Users/runner/work/tinygo/tinygo/builder/tools-builtin.go:31 +0x414
main.main()
        /Users/runner/work/tinygo/tinygo/main.go:1486 +0xe88
error: failed to link /var/folders/pw/lntpc2cn37v41ct1t0t9t9880000gn/T/tinygo3720530408/main: exit status 2

I have determined that the reason why it is crashing is the large number of embedded files contained within https://github.com/cogentcore/core/blob/main/icons/icongen.go. If you comment out the file embedding statements from Circles all the way to the bottom, it stops crashing, but if you uncomment enough of those lines, it starts crashing again.