linux-kernel - [PATCH] x86 built-in command line (resend)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20060731171259.GH6908@waste.org>
Date:	Mon, 31 Jul 2006 12:13:00 -0500
From:	Matt Mackall <mpm@...enic.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>
Subject: [PATCH] x86 built-in command line (resend)

I'm resending this as-is because the earlier thread petered out
without any strong arguments against this approach. x86_64 patch to
follow.

Allow setting the kernel command line at compile time on x86.

Signed-off-by: Matt Mackall <mpm@...enic.com>

Index: linux/arch/i386/Kconfig
===================================================================
--- linux.orig/arch/i386/Kconfig	2006-07-26 18:08:28.000000000 -0500
+++ linux/arch/i386/Kconfig	2006-07-27 16:09:13.000000000 -0500
@@ -830,6 +830,20 @@ config COMPAT_VDSO
 
 	  If unsure, say Y.
 
+config CMDLINE_BOOL
+	bool "Default bootloader kernel arguments" if EMBEDDED
+
+config CMDLINE
+	string "Initial kernel command string" if EMBEDDED
+	depends on CMDLINE_BOOL
+	default "root=/dev/hda1 ro"
+	help
+	  On some systems, there is no way for the boot loader to pass
+	  arguments to the kernel. For these platforms, you can supply
+	  some command-line options at build time by entering them
+	  here. In most cases you will need to specify the root device
+	  here.
+
 endmenu
 
 config ARCH_ENABLE_MEMORY_HOTPLUG
Index: linux/arch/i386/kernel/setup.c
===================================================================
--- linux.orig/arch/i386/kernel/setup.c	2006-07-26 18:08:28.000000000 -0500
+++ linux/arch/i386/kernel/setup.c	2006-07-27 16:09:13.000000000 -0500
@@ -723,6 +723,10 @@ static void __init parse_cmdline_early (
 	int len = 0;
 	int userdef = 0;
 
+#ifdef CONFIG_CMDLINE_BOOL
+	strlcpy(saved_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#endif
+
 	/* Save unparsed command line copy for /proc/cmdline */
 	saved_command_line[COMMAND_LINE_SIZE-1] = '\0';
 


-- 
Mathematics is the supreme nostalgia of our time.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/