Files
linux-kernel-module-cheat/userland/arch/aarch64/beq.S
Ciro Santilli 六四事件 法轮功 c8c4f89854 asm: make use regular asserts that will just work on baremetal
Previously had wonky line pointer in asm_main. New interface simpler and more portable.

Add tests for ASSERT_EQ_ and family in arm and aarch64, previously on x86_64.

ASSERT_EQ_ and family in ARM can now either take =123, =addr or var, before this
the = was added on macros so var was not possible.

Define the main function directly in assembly, the C driver was useless.
2019-05-23 00:00:00 +00:00

34 lines
451 B
ArmAsm

/* https://github.com/cirosantilli/linux-kernel-module-cheat#arm-beq-instruction */
#include <lkmc.h>
LKMC_PROLOGUE
/* cbz == 0 */
mov x0, 0
cbz x0, 1f
LKMC_ASSERT_FAIL
1:
/* cbz != 0 */
mov x0, 1
cbz x0, 1f
b 2f
1:
LKMC_ASSERT_FAIL
2:
/* cbnz != 0 */
mov x0, 1
cbnz x0, 1f
LKMC_ASSERT_FAIL
1:
/* cbnz == 0 */
mov x0, 0
cbnz x0, 1f
b 2f
1:
LKMC_ASSERT_FAIL
2:
LKMC_EPILOGUE