A simple, tiny, statically linked 64-bit x86 'hello world' test. It uses two system calls (write and exit) and provides a basic sanity check to make sure that the arm bsd-user binary can interpret FreeBSD 64-bit amd64 binaries. Please note: it's named amd64 because that's the target name for FreeBSD's clang and it simplifies building a little.
Signed-off-by: Warner Losh <i...@bsdimp.com> --- tests/bsd-user-smoke/h.amd64.S | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 tests/bsd-user-smoke/h.amd64.S diff --git a/tests/bsd-user-smoke/h.amd64.S b/tests/bsd-user-smoke/h.amd64.S new file mode 100644 index 00000000000..a769e59beb8 --- /dev/null +++ b/tests/bsd-user-smoke/h.amd64.S @@ -0,0 +1,28 @@ +# Copyright (c) 2021 Warner Losh +# SPDX-License-Identifier: BSD-2-Clause + +#include <sys/syscall.h> +#define STDOUT_FILENO 1 + + .text + .globl qemu_start + .p2align 4, 0x90 +qemu_start: + + # write(1, .L.str, sizeof(.L.str) - 1) + movq $.L.str, %rsi + movl $STDOUT_FILENO, %edi + movl $len, %edx + movl $SYS_write, %eax + syscall + + # _exit(0) + xorl %edi, %edi + movl $SYS_exit, %eax + syscall + + .section .rodata.str1.1,"aMS",@progbits,1 +.L.str: + .asciz "Hello World\n" +.L.strEnd: +len=.L.strEnd - .L.str - 1 -- 2.33.0
