Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
f30c2269 | 2 | * arch/alpha/lib/dbg_stackkill.S |
1da177e4 LT |
3 | * Contributed by Richard Henderson (rth@cygnus.com) |
4 | * | |
5 | * Clobber the balance of the kernel stack, hoping to catch | |
6 | * uninitialized local variables in the act. | |
7 | */ | |
8 | ||
e2d5df93 | 9 | #include <asm/asm-offsets.h> |
1da177e4 LT |
10 | |
11 | .text | |
12 | .set noat | |
13 | ||
14 | .align 5 | |
15 | .globl _mcount | |
16 | .ent _mcount | |
17 | _mcount: | |
18 | .frame $30, 0, $28, 0 | |
19 | .prologue 0 | |
20 | ||
21 | ldi $0, 0xdeadbeef | |
22 | lda $2, -STACK_SIZE | |
23 | sll $0, 32, $1 | |
24 | and $30, $2, $2 | |
25 | or $0, $1, $0 | |
26 | lda $2, TASK_SIZE($2) | |
27 | cmpult $2, $30, $1 | |
28 | beq $1, 2f | |
29 | 1: stq $0, 0($2) | |
30 | addq $2, 8, $2 | |
31 | cmpult $2, $30, $1 | |
32 | bne $1, 1b | |
33 | 2: ret ($28) | |
34 | ||
35 | .end _mcount |