[2374] 2009-06-29 Robert Millan

[Robert Millan]

Revision: 2374
          http://svn.sv.gnu.org/viewvc/?view=rev&root=grub&revision=2374
Author:   robertmh
Date:     2009-06-29 15:55:42 +0000 (Mon, 29 Jun 2009)
Log Message:
-----------
2009-06-29  Robert Millan  <rmh.g...@aybabtu.com>

        * loader/i386/linux.c [__i386__] (grub_linux_boot): Simplify inline
        assembly in final jump, using register constraints.

Modified Paths:
--------------
    trunk/grub2/ChangeLog
    trunk/grub2/loader/i386/linux.c

Modified: trunk/grub2/ChangeLog
===================================================================
--- trunk/grub2/ChangeLog       2009-06-29 12:20:56 UTC (rev 2373)
+++ trunk/grub2/ChangeLog       2009-06-29 15:55:42 UTC (rev 2374)
@@ -1,5 +1,10 @@
 2009-06-29  Robert Millan  <rmh.g...@aybabtu.com>
 
+       * loader/i386/linux.c [__i386__] (grub_linux_boot): Simplify inline
+       assembly in final jump, using register constraints.
+
+2009-06-29  Robert Millan  <rmh.g...@aybabtu.com>
+
        * include/grub/i386/linux.h (GRUB_LINUX_FLAG_QUIET): New macro.
        * loader/i386/linux.c (grub_cmd_linux): Recognize "quiet" option,
        and set GRUB_LINUX_FLAG_QUIET appropiately.

Modified: trunk/grub2/loader/i386/linux.c
===================================================================
--- trunk/grub2/loader/i386/linux.c     2009-06-29 12:20:56 UTC (rev 2373)
+++ trunk/grub2/loader/i386/linux.c     2009-06-29 15:55:42 UTC (rev 2374)
@@ -554,14 +554,8 @@
   asm volatile ("lidt %0" : : "m" (idt_desc));
   asm volatile ("lgdt %0" : : "m" (gdt_desc));
 
-  /* Pass parameters.  */
-  asm volatile ("movl %0, %%ecx" : : "m" (params->code32_start));
-  asm volatile ("movl %0, %%esi" : : "m" (real_mode_mem));
-
-  asm volatile ("xorl %%ebx, %%ebx" : : );
-
   /* Enter Linux.  */
-  asm volatile ("jmp *%%ecx" : : );
+  asm volatile ("jmp *%2" : : "b" (0), "S" (real_mode_mem), "g" 
(params->code32_start));
 
 #endif