Differential D3167 Diff 11810 sys/boot/i386/loader/main.c

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sys/boot/i386/loader/main.c

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struct arch_switch archsw; /* MI/MD interface boundary */		struct arch_switch archsw; /* MI/MD interface boundary */

static void extract_currdev(void);		static void extract_currdev(void);
static int isa_inb(int port);		static int isa_inb(int port);
static void isa_outb(int port, int value);		static void isa_outb(int port, int value);
void exit(int code);		void exit(int code);
#ifdef LOADER_ZFS_SUPPORT		#ifdef LOADER_ZFS_SUPPORT
		static void init_zfs_bootenv(char *currdev);
static void i386_zfs_probe(void);		static void i386_zfs_probe(void);
#endif		#endif

/* from vers.c */		/* from vers.c */
extern char bootprog_name[], bootprog_rev[], bootprog_date[], bootprog_maker[];		extern char bootprog_name[], bootprog_rev[], bootprog_date[], bootprog_maker[];

/* XXX debugging */		/* XXX debugging */
extern char end[];		extern char end[];
▲ Show 20 Lines • Show All 209 Lines • ▼ Show 20 Lines	if ((biosdev == 0) && (B_TYPE(initial_bootdev) != 2)) /* biosdev doesn't match major */
*/		*/
if ((new_currdev.d_type == biosdisk.dv_type) &&		if ((new_currdev.d_type == biosdisk.dv_type) &&
((new_currdev.d_unit = bd_bios2unit(biosdev)) == -1)) {		((new_currdev.d_unit = bd_bios2unit(biosdev)) == -1)) {
printf("Can't work out which disk we are booting from.\n"		printf("Can't work out which disk we are booting from.\n"
"Guessed BIOS device 0x%x not found by probes, defaulting to disk0:\n", biosdev);		"Guessed BIOS device 0x%x not found by probes, defaulting to disk0:\n", biosdev);
new_currdev.d_unit = 0;		new_currdev.d_unit = 0;
}		}

		#ifdef LOADER_ZFS_SUPPORT
		init_zfs_bootenv(zfs_fmtdev(&new_currdev));
		#endif

env_setenv("currdev", EV_VOLATILE, i386_fmtdev(&new_currdev),		env_setenv("currdev", EV_VOLATILE, i386_fmtdev(&new_currdev),
i386_setcurrdev, env_nounset);		i386_setcurrdev, env_nounset);
env_setenv("loaddev", EV_VOLATILE, i386_fmtdev(&new_currdev), env_noset,		env_setenv("loaddev", EV_VOLATILE, i386_fmtdev(&new_currdev), env_noset,
env_nounset);		env_nounset);
}		}

		#ifdef LOADER_ZFS_SUPPORT
		static void
		init_zfs_bootenv(char *currdev)
		{
		char *beroot;

		/* Remove the trailing : */
		currdev[strlen(currdev) - 1] = '\0';
		setenv("zfs_be_active", currdev, 1);
		/* Do not overwrite if already set */
		setenv("vfs.root.mountfrom", currdev, 0);
		/* Forward past zfs: */
		currdev = strchr(currdev, ':');
		currdev++;
		/* Remove the last element (current bootenv) */
		beroot = strrchr(currdev, '/');
		beroot[0] = '\0';

		beroot = currdev;

		setenv("zfs_be_root", beroot, 1);
		}
		#endif

COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot);		COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot);

static int		static int
command_reboot(int argc, char *argv[])		command_reboot(int argc, char *argv[])
{		{
int i;		int i;

for (i = 0; devsw[i] != NULL; ++i)		for (i = 0; devsw[i] != NULL; ++i)
Show All 37 Lines	command_lszfs(int argc, char *argv[])
return (CMD_ERROR);		return (CMD_ERROR);
}		}

err = zfs_list(argv[1]);		err = zfs_list(argv[1]);
if (err != 0) {		if (err != 0) {
command_errmsg = strerror(err);		command_errmsg = strerror(err);
return (CMD_ERROR);		return (CMD_ERROR);
}		}

		return (CMD_OK);
		}

		COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments",
		smhUnsubmitted Done Inline Actions Guard with #ifdef LOADER_ZFS_SUPPORT? smh: Guard with #ifdef LOADER_ZFS_SUPPORT?
		allanjudeAuthorUnsubmitted Done Inline Actions It is already guarded, the ifdef starts above the previous function (lszfs) and ends just below 'command_reloadbe' allanjude: It is already guarded, the ifdef starts above the previous function (lszfs) and ends just below…
		command_reloadbe);

		static int
		command_reloadbe(int argc, char *argv[])
		{
		int err;

		if (argc > 2) {
		command_errmsg = "wrong number of arguments";
		return (CMD_ERROR);
		}

		if (argc == 2) {
		err = zfs_bootenv(argv[1]);
		} else {
		err = zfs_bootenv(getenv("zfs_be_root"));
		}

		if (err != 0) {
		command_errmsg = strerror(err);
		return (CMD_ERROR);
		}

return (CMD_OK);		return (CMD_OK);
}		}
#endif		#endif

/* ISA bus access functions for PnP. */		/* ISA bus access functions for PnP. */
static int		static int
isa_inb(int port)		isa_inb(int port)
{		{
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