Redesign syscalls

libmsl/m/system.c

@@ -0,0 +1,32 @@
+#include <m/syscall.h>
+#include <m/system.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#define do_syscall1(id, a1, a2, a3, a4, a5, a6, ...)                                               \
+  syscall (id, (uintptr_t)a1, (uintptr_t)a2, (uintptr_t)a3, (uintptr_t)a4, (uintptr_t)a5,          \
+           (uintptr_t)a6)
+
+#define do_syscall(...) do_syscall1 (__VA_ARGS__, 0, 0, 0, 0, 0, 0)
+
+int quit (void) { return do_syscall (SYS_QUIT); }
+
+int test (char c) { return do_syscall (SYS_TEST, c); }
+
+int map (int mem_rid, int vis, uintptr_t vaddr, uint32_t flags) {
+  return do_syscall (SYS_MAP, mem_rid, vis, vaddr, flags);
+}
+
+int unmap (uintptr_t vaddr, size_t pages) { return do_syscall (SYS_UNMAP, vaddr, pages); }
+
+int create_mem (int mem_rid, int vis, size_t pages) {
+  return do_syscall (SYS_CREATE_MEM, mem_rid, vis, pages);
+}
+
+int unlink_mem (int mem_rid, int vis, size_t pages) {
+  return do_syscall (SYS_UNLINK_MEM, mem_rid, vis, pages);
+}
+
+int clone (uintptr_t vstack_top, size_t stack_size, void (*entry) (void)) {
+  return do_syscall (SYS_CLONE, vstack_top, stack_size, entry);
+}