linux-2.6-binutils-2.16.patch

非常经典的一个分布式系统

--- linux/arch/i386/kernel/process.c.seg	2005-03-27 13:07:14.000000000 -0800
+++ linux/arch/i386/kernel/process.c	2005-03-28 10:28:47.000000000 -0800
@@ -597,8 +597,8 @@ struct task_struct fastcall * __switch_t
 	 * Save away %fs and %gs. No need to save %es and %ds, as
 	 * those are always kernel segments while inside the kernel.
 	 */
-	asm volatile("movl %%fs,%0":"=m" (*(int *)&prev->fs));
-	asm volatile("movl %%gs,%0":"=m" (*(int *)&prev->gs));
+	asm volatile("mov %%fs,%0":"=m" (prev->fs));
+	asm volatile("mov %%gs,%0":"=m" (prev->gs));
 
 	/*
 	 * Restore %fs and %gs if needed.
--- linux/arch/i386/kernel/vm86.c.seg	2005-03-27 13:07:14.000000000 -0800
+++ linux/arch/i386/kernel/vm86.c	2005-03-28 10:28:47.000000000 -0800
@@ -294,8 +294,8 @@ static void do_sys_vm86(struct kernel_vm
  */
 	info->regs32->eax = 0;
 	tsk->thread.saved_esp0 = tsk->thread.esp0;
-	asm volatile("movl %%fs,%0":"=m" (tsk->thread.saved_fs));
-	asm volatile("movl %%gs,%0":"=m" (tsk->thread.saved_gs));
+	asm volatile("mov %%fs,%0":"=m" (tsk->thread.saved_fs));
+	asm volatile("mov %%gs,%0":"=m" (tsk->thread.saved_gs));
 
 	tss = &per_cpu(init_tss, get_cpu());
 	tsk->thread.esp0 = (unsigned long) &info->VM86_TSS_ESP0;
--- linux/arch/x86_64/kernel/process.c.seg	2005-03-27 13:07:49.000000000 -0800
+++ linux/arch/x86_64/kernel/process.c	2005-03-28 11:11:04.206766410 -0800
@@ -391,10 +391,10 @@ int copy_thread(int nr, unsigned long cl
 	p->thread.fs = me->thread.fs;
 	p->thread.gs = me->thread.gs;
 
-	asm("movl %%gs,%0" : "=m" (p->thread.gsindex));
-	asm("movl %%fs,%0" : "=m" (p->thread.fsindex));
-	asm("movl %%es,%0" : "=m" (p->thread.es));
-	asm("movl %%ds,%0" : "=m" (p->thread.ds));
+	asm("mov %%gs,%0" : "=m" (p->thread.gsindex));
+	asm("mov %%fs,%0" : "=m" (p->thread.fsindex));
+	asm("mov %%es,%0" : "=m" (p->thread.es));
+	asm("mov %%ds,%0" : "=m" (p->thread.ds));
 
 	if (unlikely(me->thread.io_bitmap_ptr != NULL)) { 
 		p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
@@ -457,11 +457,11 @@ struct task_struct *__switch_to(struct t
 	 * Switch DS and ES.
 	 * This won't pick up thread selector changes, but I guess that is ok.
 	 */
-	asm volatile("movl %%es,%0" : "=m" (prev->es)); 
+	asm volatile("mov %%es,%0" : "=m" (prev->es)); 
 	if (unlikely(next->es | prev->es))
 		loadsegment(es, next->es); 
 	
-	asm volatile ("movl %%ds,%0" : "=m" (prev->ds)); 
+	asm volatile ("mov %%ds,%0" : "=m" (prev->ds)); 
 	if (unlikely(next->ds | prev->ds))
 		loadsegment(ds, next->ds);
 
@@ -472,7 +472,7 @@ struct task_struct *__switch_to(struct t
 	 */
 	{ 
 		unsigned fsindex;
-		asm volatile("movl %%fs,%0" : "=g" (fsindex)); 
+		asm volatile("movl %%fs,%0" : "=r" (fsindex)); 
 		/* segment register != 0 always requires a reload. 
 		   also reload when it has changed. 
 		   when prev process used 64bit base always reload
@@ -493,7 +493,7 @@ struct task_struct *__switch_to(struct t
 	}
 	{ 
 		unsigned gsindex;
-		asm volatile("movl %%gs,%0" : "=g" (gsindex)); 
+		asm volatile("movl %%gs,%0" : "=r" (gsindex)); 
 		if (unlikely(gsindex | next->gsindex | prev->gs)) {
 			load_gs_index(next->gsindex);
 			if (gsindex)
--- linux/include/asm-i386/system.h.seg	2005-03-27 13:09:12.000000000 -0800
+++ linux/include/asm-i386/system.h	2005-03-28 10:28:47.000000000 -0800
@@ -81,7 +81,7 @@ static inline unsigned long _get_base(ch
 #define loadsegment(seg,value)			\
 	asm volatile("\n"			\
 		"1:\t"				\
-		"movl %0,%%" #seg "\n"		\
+		"mov %0,%%" #seg "\n"		\
 		"2:\n"				\
 		".section .fixup,\"ax\"\n"	\
 		"3:\t"				\
@@ -93,13 +93,13 @@ static inline unsigned long _get_base(ch
 		".align 4\n\t"			\
 		".long 1b,3b\n"			\
 		".previous"			\
-		: :"m" (*(unsigned int *)&(value)))
+		: :"m" (value))
 
 /*
  * Save a segment register away
  */
 #define savesegment(seg, value) \
-	asm volatile("movl %%" #seg ",%0":"=m" (*(int *)&(value)))
+	asm volatile("mov %%" #seg ",%0":"=m" (value))
 
 /*
  * Clear and set 'TS' bit respectively