Files
linux-kernel-module-cheat/userland/arch/arm/s_suffix.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

36 lines
607 B
ArmAsm

/* https://github.com/cirosantilli/linux-kernel-module-cheat#arm-s-suffix */
#include <lkmc.h>
LKMC_PROLOGUE
/* Result is 0, set beq. */
movs r0, 0
LKMC_ASSERT(beq)
/* The opposite. */
movs r0, 1
LKMC_ASSERT(bne)
/* mov without s does not set the status. */
movs r0, 0
mov r0, 1
LKMC_ASSERT(beq)
/* movs still moves... */
mov r0, 0
movs r0, 1
LKMC_ASSERT_EQ(r0, =1)
/* add: the result is 0. */
mov r0, 1
adds r0, -1
LKMC_ASSERT(beq)
/* add: result non 0. */
mov r0, 1
adds r0, 1
LKMC_ASSERT(bne)
LKMC_EPILOGUE