$ cat malloc.go
package main
// #include <stdlib.h>
import "C"
func main() {
println(C.malloc(1000))
}
$ go run -gcflags=all=-d=checkptr malloc.go
fatal error: runtime: C malloc failed
goroutine 1 [running]:
runtime.throw(0x47aea6, 0x18)
/usr/local/google/home/mdempsky/wd/go/src/runtime/panic.go:774 +0x72 fp=0xc000082708 sp=0xc0000826d8 pc=0x426122
main._cgo_cmalloc(0x3e8, 0x0)
_cgo_gotypes.go:55 +0x91 fp=0xc000082738 sp=0xc000082708 pc=0x4576a1
main._Cfunc__CMalloc(...)
_cgo_gotypes.go:40
main.main()
/tmp/malloc.go:7 +0x2a fp=0xc000082760 sp=0xc000082738 pc=0x4576da
...
