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Commit 104dd65f authored by Paul Mackerras's avatar Paul Mackerras
Browse files

powerpc: clean up bug.h further 



This simplifies the macros which are different between 32-bit and
64-bit.  It also fixes a couple of printks on the bug->line element,
which is now a long.

Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent b5ca71a5

arch/powerpc/kernel/traps.c

+4 −4
Original line number Diff line number Diff line
@@ -749,22 +749,22 @@ static int check_bug_trap(struct pt_regs *regs) 
	if (bug->line & BUG_WARNING_TRAP) {

		/* this is a WARN_ON rather than BUG/BUG_ON */

#ifdef CONFIG_XMON

		xmon_printf(KERN_ERR "Badness in %s at %s:%d\n",

		xmon_printf(KERN_ERR "Badness in %s at %s:%ld\n",

		       bug->function, bug->file,

		       bug->line & ~BUG_WARNING_TRAP);

#endif /* CONFIG_XMON */		

		printk(KERN_ERR "Badness in %s at %s:%d\n",

		printk(KERN_ERR "Badness in %s at %s:%ld\n",

		       bug->function, bug->file,

		       bug->line & ~BUG_WARNING_TRAP);

		dump_stack();

		return 1;

	}

#ifdef CONFIG_XMON

	xmon_printf(KERN_CRIT "kernel BUG in %s at %s:%d!\n",

	xmon_printf(KERN_CRIT "kernel BUG in %s at %s:%ld!\n",

	       bug->function, bug->file, bug->line);

	xmon(regs);

#endif /* CONFIG_XMON */

	printk(KERN_CRIT "kernel BUG in %s at %s:%d!\n",

	printk(KERN_CRIT "kernel BUG in %s at %s:%ld!\n",

	       bug->function, bug->file, bug->line);



	return 0;

include/asm-powerpc/bug.h

+12 −14
Original line number Diff line number Diff line
@@ -12,13 +12,11 @@ 
#ifndef __ASSEMBLY__



#ifdef __powerpc64__

#define BUG_TABLE_ENTRY(label, line, file, func) \

	".llong " #label ", " #line ", " #file ", " #func "\n"

#define TRAP_OP(ra, rb) "1: tdnei " #ra ", " #rb "\n"

#define BUG_TABLE_ENTRY		".llong"

#define BUG_TRAP_OP		"tdnei"

#else 

#define BUG_TABLE_ENTRY(label, line, file, func) \

	".long " #label ", " #line ", " #file ", " #func "\n"

#define TRAP_OP(ra, rb) "1: twnei " #ra ", " #rb "\n"

#define BUG_TABLE_ENTRY		".long"

#define BUG_TRAP_OP		"twnei"

#endif /* __powerpc64__ */



struct bug_entry {
@@ -41,17 +39,17 @@ struct bug_entry *find_bug(unsigned long bugaddr); 
#define BUG() do {							 \

	__asm__ __volatile__(						 \

		"1:	twi 31,0,0\n"					 \

		".section __bug_table,\"a\"\n\t"			 \

		BUG_TABLE_ENTRY(1b,%0,%1,%2)				 \

		".section __bug_table,\"a\"\n"				 \

		"\t"BUG_TABLE_ENTRY"	1b,%0,%1,%2\n"			 \

		".previous"						 \

		: : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \

} while (0)



#define BUG_ON(x) do {						\

	__asm__ __volatile__(					\

		TRAP_OP(%0,0)					\

		".section __bug_table,\"a\"\n\t"		\

		BUG_TABLE_ENTRY(1b,%1,%2,%3)			\

		"1:	"BUG_TRAP_OP"	%0,0\n"			\

		".section __bug_table,\"a\"\n"			\

		"\t"BUG_TABLE_ENTRY"	1b,%1,%2,%3\n"		\

		".previous"					\

		: : "r" ((long)(x)), "i" (__LINE__),		\

		    "i" (__FILE__), "i" (__FUNCTION__));	\
@@ -59,9 +57,9 @@ struct bug_entry *find_bug(unsigned long bugaddr); 


#define WARN_ON(x) do {						\

	__asm__ __volatile__(					\

		TRAP_OP(%0,0)					\

		".section __bug_table,\"a\"\n\t"		\

		BUG_TABLE_ENTRY(1b,%1,%2,%3)			\

		"1:	"BUG_TRAP_OP"	%0,0\n"			\

		".section __bug_table,\"a\"\n"			\

		"\t"BUG_TABLE_ENTRY"	1b,%1,%2,%3\n"		\

		".previous"					\

		: : "r" ((long)(x)),				\

		    "i" (__LINE__ + BUG_WARNING_TRAP),		\