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Unified Diff: fusl/arch/aarch64/syscall_arch.h

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
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Index: fusl/arch/aarch64/syscall_arch.h
diff --git a/fusl/arch/aarch64/syscall_arch.h b/fusl/arch/aarch64/syscall_arch.h
new file mode 100644
index 0000000000000000000000000000000000000000..25f5ce670ff84a7410d5120141b488cdab0c7b6e
--- /dev/null
+++ b/fusl/arch/aarch64/syscall_arch.h
@@ -0,0 +1,76 @@
+#define __SYSCALL_LL_E(x) (x)
+#define __SYSCALL_LL_O(x) (x)
+
+#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"
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