1 What version of Go are you using (go version)?

Go 1.4 and Go 1.5 (maybe Go 1.3, too)

2 What operating system and processor architecture are you using?

• Host:

  • Linux(CentOS7) go version go1.4.2 linux/amd64

  • NetBSD/amd64 7.0 go version go1.5.1 netbsd/amd64

  • NetBSD/amd64 7.0 go version go1.4.3 netbsd/amd64

    This problem occurs on all host environments.

• Target:
  • NetBSD/evbarm 7.0 (EABI, PAGE_SIZE=4K kernel)

3 What did you do?

Simple test program

  package main
  import "fmt"
  func main() {
          fmt.Println("Hello World")
  }

  $ GOOS=netbsd GOARCH=arm go build .hello.go
  $ file hello
  hello: ELF 32-bit LSB executable, ARM, version 1 (NetBSD), statically linked, for NetBSD 5.99, not stripped

4 What did you expect to see?

  $ ./hello
  Hello World

5 What did you see instead?
When run on NetBSD/arm

 $ ./hello
 (no response, send KILL signal from another tty)
 [1]   Killed                  ./hello
 $ gdb ./hello
 (gdb) r
  Starting program: /tmp/hello

  Program received signal SIGSEGV, Segmentation fault.
  0x000383c4 in runtime.newosproc ()
      at /usr/lib/golang/src/runtime/os_netbsd.c:228

The reason of this is because the EABI support is insufficient.
Previous changes (at Mar 2014) are only in syscall packages:
30d6093
However runtime package is also a need to be changed.
Go1.5: src/runtime/defs1_netbsd_arm.go
Go1.4: src/runtime/defs_netbsd_arm.h
I think some types need padding bytes - timespec, timeval, mcontextt, ucontextt, keventt,
In addition, ELF header is also required EABI flag as same as Linux / FreeBSD.

I attached these patch for go1.5.
go_netbsd_earm_diff.txt