diff options
Diffstat (limited to 'arch/aarch64/syscall_arch.h')
-rw-r--r-- | arch/aarch64/syscall_arch.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/aarch64/syscall_arch.h b/arch/aarch64/syscall_arch.h new file mode 100644 index 00000000..ec7cc785 --- /dev/null +++ b/arch/aarch64/syscall_arch.h @@ -0,0 +1,80 @@ +#define __SYSCALL_LL_E(x) \ +((union { long long ll; long l[2]; }){ .ll = x }).l[0], \ +((union { long long ll; long l[2]; }){ .ll = x }).l[1] +#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x)) + +long (__syscall)(long, ...); + +#define __asm_syscall(...) do { \ + __asm__ __volatile__ ( "svc 0" \ + : "=r"(x0) : __VA_ARGS__ : "memory", "cc"); \ + return x0; \ + } while (0) + +static inline long __syscall0(long n) +{ + register long x8 __asm__("x8") = n; + register long x0 __asm__("x0"); + __asm_syscall("r"(x8)); +} + +static inline long __syscall1(long n, long a) +{ + register long x8 __asm__("x8") = n; + register long x0 __asm__("x0") = a; + __asm_syscall("r"(x8), "0"(x0)); +} + +static inline long __syscall2(long n, long a, long b) +{ + register long x8 __asm__("x8") = n; + register long x0 __asm__("x0") = a; + register long x1 __asm__("x1") = b; + __asm_syscall("r"(x8), "0"(x0), "r"(x1)); +} + +static inline long __syscall3(long n, long a, long b, long c) +{ + register long x8 __asm__("x8") = n; + register long x0 __asm__("x0") = a; + register long x1 __asm__("x1") = b; + register long x2 __asm__("x2") = c; + __asm_syscall("r"(x8), "0"(x0), "r"(x1), "r"(x2)); +} + +static inline long __syscall4(long n, long a, long b, long c, long d) +{ + register long x8 __asm__("x8") = n; + register long x0 __asm__("x0") = a; + register long x1 __asm__("x1") = b; + register long x2 __asm__("x2") = c; + register long x3 __asm__("x3") = d; + __asm_syscall("r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3)); +} + +static inline long __syscall5(long n, long a, long b, long c, long d, long e) +{ + register long x8 __asm__("x8") = n; + register long x0 __asm__("x0") = a; + register long x1 __asm__("x1") = b; + register long x2 __asm__("x2") = c; + register long x3 __asm__("x3") = d; + register long x4 __asm__("x4") = e; + __asm_syscall("r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3), "r"(x4)); +} + +static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f) +{ + register long x8 __asm__("x8") = n; + register long x0 __asm__("x0") = a; + register long x1 __asm__("x1") = b; + register long x2 __asm__("x2") = c; + register long x3 __asm__("x3") = d; + register long x4 __asm__("x4") = e; + register long x5 __asm__("x5") = f; + __asm_syscall("r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3), "r"(x4), "r"(x5)); +} + +#define VDSO_USEFUL +#define VDSO_CGT_SYM "__kernel_clock_gettime" +#define VDSO_CGT_VER "LINUX_2.6.39" |