Files
linux-kernel-module-cheat/userland/arch/arm/adr.S
Ciro Santilli 六四事件 法轮功 0263c21557 userland: add assembly support
Move arm assembly cheat here, and start some work on x86 cheat as well.
2019-05-05 00:00:00 +00:00

34 lines
837 B
ArmAsm

/* https://github.com/cirosantilli/arm-assembly-cheat#adr */
#include "common.h"
.data
data_label:
.word 0x1234678
ENTRY
adr r0, label
/* objdump tells us that this uses the literal pool,
* it does not get converted to adr, which is the better
* alternative here.
*/
adr r1, label
adrl r2, label
label:
ASSERT_EQ_REG(r0, r1)
ASSERT_EQ_REG(r0, r2)
#if 0
/* Error: symbol .data is in a different section.
*
* It works however in ARMv8.
* I think this means that there is no relocation type
* that takes care of this encoding in ARMv8, but there
* is one in ARMv8.
*
* If you have no idea what I'm talking about, read this:
* https://stackoverflow.com/questions/3322911/what-do-linkers-do/33690144#33690144
*/
adr r1, data_label
#endif
EXIT