mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-26 11:41:35 +01:00
67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
/* https://github.com/cirosantilli/linux-kernel-module-cheat#userland-assembly-c-standard-library */
|
|
|
|
#ifndef COMMON_ARCH_H
|
|
#define COMMON_ARCH_H
|
|
|
|
#define ASSERT_EQ(reg, const) \
|
|
ldr x11, =const; \
|
|
cmp reg, x11; \
|
|
ASSERT(beq); \
|
|
;
|
|
|
|
#define ASSERT_MEMCMP(s1, s2, n) \
|
|
MEMCMP(s1, s2, n); \
|
|
ASSERT_EQ(x0, 0); \
|
|
;
|
|
|
|
#define ENTRY \
|
|
.text; \
|
|
.global asm_main; \
|
|
asm_main: \
|
|
sub sp, sp, 0xA0; \
|
|
stp x29, x30, [sp]; \
|
|
stp x27, x28, [sp, 0x10]; \
|
|
stp x25, x26, [sp, 0x20]; \
|
|
stp x23, x24, [sp, 0x30]; \
|
|
stp x21, x22, [sp, 0x40]; \
|
|
stp x19, x20, [sp, 0x50]; \
|
|
stp x6, x7, [sp, 0x60]; \
|
|
stp x4, x5, [sp, 0x70]; \
|
|
stp x2, x3, [sp, 0x80]; \
|
|
stp x0, x1, [sp, 0x90]; \
|
|
asm_main_after_prologue: \
|
|
;
|
|
|
|
#define EXIT \
|
|
mov w0, 0; \
|
|
mov w1, 0; \
|
|
b pass; \
|
|
fail: \
|
|
ldr x1, [sp, 0x90]; \
|
|
str w0, [x1]; \
|
|
mov w0, 1; \
|
|
pass: \
|
|
ldp x19, x20, [sp, 0x50]; \
|
|
ldp x21, x22, [sp, 0x40]; \
|
|
ldp x23, x24, [sp, 0x30]; \
|
|
ldp x25, x26, [sp, 0x20]; \
|
|
ldp x27, x28, [sp, 0x10]; \
|
|
ldp x29, x30, [sp]; \
|
|
add sp, sp, 0xA0; \
|
|
ret; \
|
|
;
|
|
|
|
#define FAIL \
|
|
ldr w0, =__LINE__; \
|
|
b fail; \
|
|
;
|
|
|
|
#define MEMCMP(s1, s2, n) \
|
|
adr x0, s1; \
|
|
adr x1, s2; \
|
|
ldr x2, =n; \
|
|
bl memcmp; \
|
|
;
|
|
|
|
#endif
|