diff options
Diffstat (limited to 'include/apos')
| -rw-r--r-- | include/apos/uapi.h | 53 |
1 files changed, 35 insertions, 18 deletions
diff --git a/include/apos/uapi.h b/include/apos/uapi.h index b4a3c6f..ff3f4d0 100644 --- a/include/apos/uapi.h +++ b/include/apos/uapi.h @@ -6,13 +6,23 @@ /* syscall function type, let's start with four arguments and see where that * goes */ -typedef vm_t (*sys_t)(vm_t, vm_t, vm_t, vm_t); +typedef struct sys_ret (*sys_t)(long, long, long, long); +/* TODO: should this be arch specific? should be the size of an integer register */ +typedef long sys_arg_t; -#define SYSCALL_DECLARE(name) vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d); +struct sys_ret { + sys_arg_t err; + sys_arg_t val; +}; + +#define SYSCALL_DECLARE(name) \ + struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \ + sys_arg_t d); #define SYSCALL_DEFINE0(name) \ - static vm_t __##name(); \ - vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d) \ + static inline struct sys_ret __##name(); \ + struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \ + sys_arg_t d) \ { \ UNUSED(a); \ UNUSED(b); \ @@ -20,45 +30,51 @@ typedef vm_t (*sys_t)(vm_t, vm_t, vm_t, vm_t); UNUSED(d); \ return __##name(); \ } \ - static vm_t __##name + static struct sys_ret __##name #define SYSCALL_DEFINE1(name) \ - static vm_t __##name(vm_t); \ - vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d) \ + static inline struct sys_ret __##name(sys_arg_t); \ + struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \ + sys_arg_t d) \ { \ UNUSED(b); \ UNUSED(c); \ UNUSED(d); \ return __##name(a); \ } \ - static vm_t __##name + static inline struct sys_ret __##name #define SYSCALL_DEFINE2(name) \ - static vm_t __##name(vm_t, vm_t); \ - vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d) \ + static inline struct sys_ret __##name(sys_arg_t, sys_arg_t); \ + struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \ + sys_arg_t d) \ { \ UNUSED(c); \ UNUSED(d); \ return __##name(a, b); \ } \ - static vm_t __##name + static inline struct sys_ret __##name #define SYSCALL_DEFINE3(name) \ - static vm_t __##name(vm_t, vm_t, vm_t); \ - vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d) \ + static inline struct sys_ret __##name(sys_arg_t, sys_arg_t, \ + sys_arg_t); \ + struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \ + sys_arg_t d) \ { \ UNUSED(d); \ return __##name(a, b, c); \ } \ - static vm_t __##name + static inline struct sys_ret __##name #define SYSCALL_DEFINE4(name) \ - static vm_t __##name(vm_t, vm_t, vm_t, vm_t); \ - vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d) \ + static inline struct sys_ret __##name(sys_arg_t, sys_arg_t, sys_arg_t, \ + sys_arg_t); \ + struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \ + sys_arg_t d) \ { \ return __##name(a, b, c, d); \ } \ - static vm_t __##name + static inline struct sys_ret __##name /* noop */ SYSCALL_DECLARE(noop); @@ -91,6 +107,7 @@ SYSCALL_DECLARE(switch); SYSCALL_DECLARE(conf); SYSCALL_DECLARE(poweroff); -vm_t syscall_dispatch(vm_t syscall, vm_t a, vm_t b, vm_t c, vm_t d); +struct sys_ret syscall_dispatch(sys_arg_t syscall, sys_arg_t a, sys_arg_t b, + sys_arg_t c, sys_arg_t d); #endif /* APOS_UAPI_H */ |