[linux-2.6-block.git] / arch / alpha / lib / dbg_stackcheck.S

/*
 * arch/alpha/lib/dbg_stackcheck.S
 * Contributed by Richard Henderson (rth@tamu.edu)
 *
 * Verify that we have not overflowed the stack.  Oops if we have.
 */

#include <asm/asm-offsets.h>

	.text
	.set noat

	.align 3
	.globl _mcount
	.ent _mcount
_mcount:
	.frame $30, 0, $28, 0
	.prologue 0

	lda	$0, TASK_SIZE($8)
	cmpult	$30, $0, $0
	bne	$0, 1f
	ret	($28)
1:	stq	$31, -8($31)	# oops me, damn it.
	br	1b

	.end _mcount
Commit	Line	Data
1da177e4	1	/*
f30c2269	2	* arch/alpha/lib/dbg_stackcheck.S
1da177e4 LT	3	* Contributed by Richard Henderson (rth@tamu.edu)
	4	*
	5	* Verify that we have not overflowed the stack. Oops if we have.
	6	*/
	7
e2d5df93	8	#include <asm/asm-offsets.h>
1da177e4 LT	9
	10	.text
	11	.set noat
	12
	13	.align 3
	14	.globl _mcount
	15	.ent _mcount
	16	_mcount:
	17	.frame $30, 0, $28, 0
	18	.prologue 0
	19
	20	lda $0, TASK_SIZE($8)
	21	cmpult $30, $0, $0
	22	bne $0, 1f
	23	ret ($28)
	24	1: stq $31, -8($31) # oops me, damn it.
	25	br 1b
	26
	27	.end _mcount