> Date: Fri, 3 Jan 2020 19:26:22 +0000
> From: Miod Vallat <m...@online.fr>
>
> Although Open Firmware supports it, there is no way from OpenBSD to
> reboot with a specified boot command line, so drop vestigial support for
> it from boot().
Hmm, reboot(2) does allow us to pass flags. But you're right that
there is no userland tool to pass the flags to the kernel.
I suppose the dominant platforms simply didn't support passing flags
across reboots, so this never took off. But with EFI we could support
these on amd64 and arm64.
> Index: sparc64/machdep.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/arch/sparc64/sparc64/machdep.c,v
> retrieving revision 1.191
> diff -u -p -r1.191 machdep.c
> --- sparc64/machdep.c 1 Apr 2019 07:00:52 -0000 1.191
> +++ sparc64/machdep.c 3 Jan 2020 19:24:45 -0000
> @@ -593,9 +593,6 @@ struct pcb dumppcb;
> __dead void
> boot(int howto)
> {
> - int i;
> - static char str[128];
> -
> if ((howto & RB_RESET) != 0)
> goto doreset;
>
> @@ -655,30 +652,7 @@ haltsys:
>
> doreset:
> printf("rebooting\n\n");
> -#if 0
> - if (user_boot_string && *user_boot_string) {
> - i = strlen(user_boot_string);
> - if (i > sizeof(str))
> - OF_boot(user_boot_string); /* XXX */
> - bcopy(user_boot_string, str, i);
> - } else
> -#endif
> - {
> - i = 1;
> - str[0] = '\0';
> - }
> -
> - if ((howto & RB_SINGLE) != 0)
> - str[i++] = 's';
> - if ((howto & RB_KDB) != 0)
> - str[i++] = 'd';
> - if (i > 1) {
> - if (str[0] == '\0')
> - str[0] = '-';
> - str[i] = 0;
> - } else
> - str[0] = 0;
> - OF_boot(str);
> + OF_boot("");
> panic("cpu_reboot -- failed");
> for (;;)
> continue;
>
>
