I've set up a minimal codebase repo to replicate the error and explain this error as clearly as possible: https://github.com/soroushjp/go_wrapper_c_err
I'm currently working on a project doing ECDSA signing using a Go package go-secp256k1 that wraps the C secp256k1 library.
If I use the functions in go-secp256k1 directly by importing them (as seen in main.go), it works fine. So in the repo, running main.go works beautifully and a public key is printed out.
So here's the strange error: If I try to write a test for a package using go-secp256k1, I receive a strange error. To replicate, run:
go test github.com/soroushjp/go_wrapper_c_err/cryptoutil -v
The error I receive:
=== RUN TestNewPublicKey
SIGTRAP: trace trap
PC=0x4031730
signal arrived during cgo execution
goroutine 20 [syscall]:
runtime.cgocall(0x40013d0, 0x436ddd0)
/usr/local/go/src/pkg/runtime/cgocall.c:143 +0xe5 fp=0x436ddb8 sp=0x436dd70
github.com/toxeus/go-secp256k1._Cfunc_secp256k1_start(0x404c14d)
github.com/toxeus/go-secp256k1/_obj/_cgo_defun.c:99 +0x31 fp=0x436ddd0 sp=0x436ddb8
github.com/toxeus/go-secp256k1.Start()
/Users/soroushjp/Desktop/Dropbox/Development/go/src/github.com/toxeus/go-secp256k1/secp256k1.go:9 +0x1a fp=0x436ddd8 sp=0x436ddd0
github.com/soroushjp/go_wrapper_c_err/cryptoutil.NewPublicKey(0xc20800e080, 0x20, 0x20, 0x0, 0x0, 0x0, 0x0, 0x0)
/Users/soroushjp/go/src/github.com/soroushjp/go_wrapper_c_err/cryptoutil/cryptoutil.go:35 +0xbd fp=0x436de98 sp=0x436ddd8
github.com/soroushjp/go_wrapper_c_err/cryptoutil.TestNewPublicKey(0xc20804c090)
/Users/soroushjp/go/src/github.com/soroushjp/go_wrapper_c_err/cryptoutil/cryptoutil_test.go:10 +0x5f fp=0x436df68 sp=0x436de98
testing.tRunner(0xc20804c090, 0x420e110)
/usr/local/go/src/pkg/testing/testing.go:422 +0x8b fp=0x436df98 sp=0x436df68
runtime.goexit()
/usr/local/go/src/pkg/runtime/proc.c:1445 fp=0x436dfa0 sp=0x436df98
created by testing.RunTests
/usr/local/go/src/pkg/testing/testing.go:504 +0x8db
goroutine 16 [chan receive]:
testing.RunTests(0x418fe08, 0x420e110, 0x1, 0x1, 0x1)
/usr/local/go/src/pkg/testing/testing.go:505 +0x923
testing.Main(0x418fe08, 0x420e110, 0x1, 0x1, 0x4216960, 0x0, 0x0, 0x4216960, 0x0, 0x0)
/usr/local/go/src/pkg/testing/testing.go:435 +0x84
main.main()
github.com/soroushjp/go_wrapper_c_err/cryptoutil/_test/_testmain.go:47 +0x9c
goroutine 19 [finalizer wait]:
runtime.park(0x401c710, 0x4231e98, 0x4215dc9)
/usr/local/go/src/pkg/runtime/proc.c:1369 +0x89
runtime.parkunlock(0x4231e98, 0x4215dc9)
/usr/local/go/src/pkg/runtime/proc.c:1385 +0x3b
runfinq()
/usr/local/go/src/pkg/runtime/mgc0.c:2644 +0xcf
runtime.goexit()
/usr/local/go/src/pkg/runtime/proc.c:1445
goroutine 17 [syscall]:
runtime.goexit()
/usr/local/go/src/pkg/runtime/proc.c:1445
rax 0x4031720
rbx 0xc208018d80
rcx 0xc208002a20
rdx 0x0
rdi 0x4403a90
rsi 0xc208002a20
rbp 0xb0103e30
rsp 0xb006efc0
r8 0x1
r9 0x3f
r10 0x3
r11 0x7fffffffffffffff
r12 0x7fff74c4e420
r13 0x1b8f53c9daf8
r14 0x4403a78
r15 0x4403a30
rip 0x4031730
rflags 0x246
cs 0x2b
fs 0x0
gs 0x0
exit status 2
FAIL github.com/soroushjp/go_wrapper_c_err/cryptoutil 0.016s
My testing code is extremely minimal and almost identical to what is going on in main.go:
package cryptoutil
import (
"fmt"
"testing"
)
func TestNewPublicKey(t *testing.T) {
privateKey := NewPrivateKey()
publicKey, err := NewPublicKey(privateKey)
if err != nil {
t.Error(err)
}
fmt.Println(publicKey)
}
Any idea what is going on here? What is happening different between 'go test' and 'go run' that's causing the ECDSA wrapper to run into this error?
Simply updating from Go 1.4 from 1.3 solved the issue for me on OS X Mavericks. The Go installer at golang.org will remove any older versions of Go when installing 1.4