mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-23 02:05:57 +01:00
c8c4f89854
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.
16 lines
374 B
ArmAsm
16 lines
374 B
ArmAsm
/* https://github.com/cirosantilli/linux-kernel-module-cheat#arm-ubfx-instruction */
|
|
|
|
#include <lkmc.h>
|
|
|
|
LKMC_PROLOGUE
|
|
ldr x19, =0x1122334455667788
|
|
|
|
ldr x20, =0xFFFFFFFFFFFFFFFF
|
|
ubfx x20, x19, 8, 16
|
|
LKMC_ASSERT_EQ(x20, =0x0000000000006677)
|
|
|
|
ldr x20, =0xFFFFFFFFFFFFFFFF
|
|
ubfx x20, x19, 8, 32
|
|
LKMC_ASSERT_EQ(x20, =0x0000000044556677)
|
|
LKMC_EPILOGUE
|