mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-24 18:51:36 +01:00
32 lines
544 B
ArmAsm
32 lines
544 B
ArmAsm
/* https://github.com/cirosantilli/linux-kernel-module-cheat#arm-ldmia-instruction */
|
|
|
|
#include "common.h"
|
|
|
|
LKMC_ENTRY
|
|
|
|
/* Save sp before push. */
|
|
mov r4, sp
|
|
|
|
/* Push. */
|
|
mov r5, 1
|
|
mov r6, 2
|
|
push {r5, r6}
|
|
|
|
/* Save sp after push. */
|
|
mov r5, sp
|
|
|
|
/* Restore. */
|
|
mov r7, 0
|
|
mov r8, 0
|
|
pop {r7, r8}
|
|
LKMC_ASSERT_EQ(r7, 1)
|
|
LKMC_ASSERT_EQ(r8, 2)
|
|
|
|
/* Check that stack pointer moved down by 8 bytes
|
|
* (2 registers x 4 bytes each).
|
|
*/
|
|
sub r4, r5
|
|
LKMC_ASSERT_EQ(r4, 8)
|
|
|
|
LKMC_EXIT
|