On Wed, Nov 15, 2023 at 8:30 PM Stephen Illingworth <
stephen.illingwo...@gmail.com> wrote:
> I'm trying to build a project on the Raspberry Pi, natively.
>
> Using "go env" I can see that Go has the following value for GOGCCFLAGS
>
> GOGCCFLAGS='-fPIC -marm -Wl,--no-gc-sections -fmessage-length=0
-ffile-prefix-map=/tmp/go-build745518569=/tmp/go-build
-gno-record-gcc-switches'
>
> However, the native compiler (gcc 12.2) does not have the -marm flag. The
compilation of the project fails.
>From the above I guess you might be running gcc for aarch64 as the arm
version accepts the -marm flag here:
jnml@pi32:~/tmp/gcc$ go version
go version go1.21.4 linux/arm
jnml@pi32:~/tmp/gcc$ cat main.c
#include <stdio.h>
int main() {
printf("Hello, world!\n");
}
jnml@pi32:~/tmp/gcc$ rm -f a.out ; gcc -marm main.c && ./a.out && echo ok
Hello, world!
ok
jnml@pi32:~/tmp/gcc$ gcc --version
gcc (Raspbian 10.2.1-6+rpi1) 10.2.1 20210110
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
jnml@pi32:~/tmp/gcc$
I tried the solution from
https://jensd.be/1126/linux/cross-compiling-for-arm-or-aarch64-on-debian-or-ubuntu
and it seems to work fine:
jnml@pi64:~/tmp/gcc$ jnml@pi64:~/tmp/gcc$ go version
go version go1.21.4 linux/arm64
jnml@pi64:~/tmp/gcc$ cat main.c
#include <stdio.h>
int main() {
printf("Hello, world!\n");
}
jnml@pi64:~/tmp/gcc$ rm -f a.out ; gcc main.c && ./a.out && echo ok
Hello, world!
ok
jnml@pi64:~/tmp/gcc$ rm -f a.out ; gcc -marm main.c && ./a.out && echo ok
gcc: error: unrecognized command-line option ‘-marm’
jnml@pi64:~/tmp/gcc$ sudo apt install gcc-arm-linux-gnueabi
binutils-arm-linux-gnueabi
...
jnml@pi64:~/tmp/gcc$ rm -f a.out ; arm-linux-gnueabi-gcc -marm main.c &&
file a.out
a.out: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically
linked, interpreter /lib/ld-linux.so.3,
BuildID[sha1]=2191a16290d46b039bfae26fd5918106dff99749, for GNU/Linux
3.2.0, not stripped
jnml@pi64:~/tmp/gcc$
HTH
--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to golang-nuts+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/golang-nuts/CAA40n-UeuRqwty-w8Z%3D1%2B3rEt1xJqKYc%3DELCWK4DjUOzjuCRvw%40mail.gmail.com.
