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.
31 lines
663 B
ArmAsm
31 lines
663 B
ArmAsm
/* https://github.com/cirosantilli/linux-kernel-module-cheat#gnu-gas-assembler data sizes */
|
|
|
|
#include <lkmc.h>
|
|
|
|
.data
|
|
mybyte:
|
|
.byte 0x12
|
|
myword:
|
|
.word 0x1234
|
|
mylong:
|
|
.long 0x12345678
|
|
myquad:
|
|
.quad 0x123456789ABCDEF0
|
|
myocta:
|
|
.octa 0x123456789ABCDEF0123456789ABCDEF0
|
|
theend:
|
|
LKMC_PROLOGUE
|
|
#define ASSERT_DIFF(label1, label2, result) \
|
|
ldr r0, =label1; \
|
|
ldr r1, =label2; \
|
|
sub r0, r1, r0; \
|
|
LKMC_ASSERT_EQ(r0, =result)
|
|
|
|
ASSERT_DIFF(mybyte, myword, 1)
|
|
ASSERT_DIFF(myword, mylong, 4)
|
|
ASSERT_DIFF(mylong, myquad, 4)
|
|
ASSERT_DIFF(myquad, myocta, 8)
|
|
ASSERT_DIFF(myocta, theend, 16)
|
|
#undef ASSERT_DIF
|
|
LKMC_EPILOGUE
|