Add a "fork" of musl as //fusl.

fusl/arch/x32/syscall_arch.h

Index: fusl/arch/x32/syscall_arch.h
diff --git a/fusl/arch/x32/syscall_arch.h b/fusl/arch/x32/syscall_arch.h
new file mode 100644
index 0000000000000000000000000000000000000000..344da03c9a49947f4db0fa2ce2665e8aa597070a
--- /dev/null
+++ b/fusl/arch/x32/syscall_arch.h
@@ -0,0 +1,126 @@
+#define __SYSCALL_LL_E(x) (x)
+#define __SYSCALL_LL_O(x) (x)
+
+#define __scc(X) sizeof(1?(X):0ULL) < 8 ? (unsigned long) (X) : (long long) (X)
+typedef long long syscall_arg_t;
+struct __timespec { long long tv_sec; long tv_nsec; };
+struct __timespec_kernel { long long tv_sec; long long tv_nsec; };
+#define __tsc(X) ((struct __timespec*)(unsigned long)(X))
+#define __fixup(X) do { if(X) { \
+	ts->tv_sec = __tsc(X)->tv_sec; \
+	ts->tv_nsec = __tsc(X)->tv_nsec; \
+	(X) = (unsigned long)ts; } } while(0)
+#define __fixup_case_2 \
+	case SYS_nanosleep: \
+		__fixup(a1); break; \
+	case SYS_clock_settime: \
+		__fixup(a2); break;
+#define __fixup_case_3 \
+	case SYS_clock_nanosleep: case SYS_rt_sigtimedwait: case SYS_ppoll: \
+		__fixup(a3); break; \
+	case SYS_utimensat: \
+		if(a3) { \
+			ts[0].tv_sec = __tsc(a3)[0].tv_sec; \
+			ts[0].tv_nsec = __tsc(a3)[0].tv_nsec; \
+			ts[1].tv_sec = __tsc(a3)[1].tv_sec; \
+			ts[1].tv_nsec = __tsc(a3)[1].tv_nsec; \
+			a3 = (unsigned long)ts; \
+		} break;
+#define __fixup_case_4 \
+	case SYS_futex: \
+		if((a2 & (~128 /* FUTEX_PRIVATE_FLAG */)) == 0 /* FUTEX_WAIT */) __fixup(a4); break;
+#define __fixup_case_5 \
+	case SYS_mq_timedsend: case SYS_mq_timedreceive: case SYS_pselect6: \
+		__fixup(a5); break;
+
+static __inline long __syscall0(long long n)
+{
+	unsigned long ret;
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n) : "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall1(long long n, long long a1)
+{
+	unsigned long ret;
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1) : "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall2(long long n, long long a1, long long a2)
+{
+	unsigned long ret;
+	struct __timespec_kernel ts[1];
+	switch (n) {
+		__fixup_case_2;
+	}
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2)
+					: "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall3(long long n, long long a1, long long a2, long long a3)
+{
+	unsigned long ret;
+	struct __timespec_kernel ts[2];
+	switch (n) {
+		__fixup_case_2;
+		__fixup_case_3;
+	}
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
+						  "d"(a3) : "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall4(long long n, long long a1, long long a2, long long a3,
+                                     long long a4_)
+{
+	unsigned long ret;
+	register long long a4 __asm__("r10") = a4_;
+	struct __timespec_kernel ts[2];
+	switch (n) {
+		__fixup_case_2;
+		__fixup_case_3;
+		__fixup_case_4;
+	}
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
+					  "d"(a3), "r"(a4): "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall5(long long n, long long a1, long long a2, long long a3,
+                                     long long a4_, long long a5_)
+{
+	unsigned long ret;
+	register long long a4 __asm__("r10") = a4_;
+	register long long a5 __asm__("r8") = a5_;
+	struct __timespec_kernel ts[2];
+	switch (n) {
+		__fixup_case_2;
+		__fixup_case_3;
+		__fixup_case_4;
+		__fixup_case_5;
+	}
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
+					  "d"(a3), "r"(a4), "r"(a5) : "rcx", "r11", "memory");
+	return ret;
+}
+
+static __inline long __syscall6(long long n, long long a1, long long a2, long long a3,
+                                     long long a4_, long long a5_, long long a6_)
+{
+	unsigned long ret;
+	register long long a4 __asm__("r10") = a4_;
+	register long long a5 __asm__("r8") = a5_;
+	register long long a6 __asm__("r9") = a6_;
+	struct __timespec_kernel ts[2];
+	switch (n) {
+		__fixup_case_2;
+		__fixup_case_3;
+		__fixup_case_4;
+		__fixup_case_5;
+	}
+	__asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
+					  "d"(a3), "r"(a4), "r"(a5), "r"(a6) : "rcx", "r11", "memory");
+	return ret;
+}