feat: (vm) memory mapping support: mmap/munmap

[lunaix-os.git] / lunaix-os / includes / lunaix / syscall.h

diff --git a/lunaix-os/includes/lunaix/syscall.h b/lunaix-os/includes/lunaix/syscall.h
index c19d5016ae01e26494734a55cf7ffb5017ea7f58..04ae40bc88964e7d1a1d242da69ef561a8dd4514 100644 (file)
--- a/lunaix-os/includes/lunaix/syscall.h
+++ b/lunaix-os/includes/lunaix/syscall.h
@@ -14,18 +14,64 @@
 #define __SYSCALL_wait 9
 #define __SYSCALL_waitpid 10
 
+#define __SYSCALL_sigreturn 11
+#define __SYSCALL_sigprocmask 12
+#define __SYSCALL_signal 13
+#define __SYSCALL_pause 14
+#define __SYSCALL_kill 15
+#define __SYSCALL_alarm 16
+#define __SYSCALL_sigpending 17
+#define __SYSCALL_sigsuspend 18
+#define __SYSCALL_open 19
+#define __SYSCALL_close 20
+
+#define __SYSCALL_read 21
+#define __SYSCALL_write 22
+#define __SYSCALL_readdir 23
+#define __SYSCALL_mkdir 24
+#define __SYSCALL_lseek 25
+#define __SYSCALL_geterrno 26
+#define __SYSCALL_readlink 27
+#define __SYSCALL_readlinkat 28
+#define __SYSCALL_rmdir 29
+
+#define __SYSCALL_unlink 30
+#define __SYSCALL_unlinkat 31
+#define __SYSCALL_link 32
+#define __SYSCALL_fsync 33
+#define __SYSCALL_dup 34
+#define __SYSCALL_dup2 35
+#define __SYSCALL_realpathat 36
+#define __SYSCALL_symlink 37
+#define __SYSCALL_chdir 38
+#define __SYSCALL_fchdir 39
+#define __SYSCALL_getcwd 40
+#define __SYSCALL_rename 41
+#define __SYSCALL_mount 42
+#define __SYSCALL_unmount 43
+#define __SYSCALL_getxattr 44
+#define __SYSCALL_setxattr 45
+#define __SYSCALL_fgetxattr 46
+#define __SYSCALL_fsetxattr 47
+
+#define __SYSCALL_ioctl 48
+#define __SYSCALL_getpgid 49
+#define __SYSCALL_setpgid 50
+
+#define __SYSCALL_syslog 51
+
+#define __SYSCALL_mmap 52
+#define __SYSCALL_munmap 53
+
 #define __SYSCALL_MAX 0x100
 
 #ifndef __ASM__
+
+#define SYSCALL_ESTATUS(errno) -((errno) != 0)
+
 void
 syscall_install();
 
-static void*
-syscall(unsigned int callcode)
-{
-    asm volatile("int %0" ::"i"(LUNAIX_SYS_CALL), "D"(callcode) : "eax");
-}
-
 #define asmlinkage __attribute__((regparm(0)))
 
 #define __PARAM_MAP1(t1, p1) t1 p1
@@ -35,11 +81,6 @@ syscall(unsigned int callcode)
 #define __PARAM_MAP5(t1, p1, ...) t1 p1, __PARAM_MAP4(__VA_ARGS__)
 #define __PARAM_MAP6(t1, p1, ...) t1 p1, __PARAM_MAP5(__VA_ARGS__)
 
-#define ___DOINT33(callcode, rettype)                                          \
-    int v;                                                                     \
-    asm volatile("int %1\n" : "=a"(v) : "i"(LUNAIX_SYS_CALL), "a"(callcode));  \
-    return (rettype)v;
-
 #define __DEFINE_LXSYSCALL(rettype, name) asmlinkage rettype __lxsys_##name()
 
 #define __DEFINE_LXSYSCALL1(rettype, name, t1, p1)                             \
@@ -52,9 +93,24 @@ syscall(unsigned int callcode)
     asmlinkage rettype __lxsys_##name(__PARAM_MAP3(t1, p1, t2, p2, t3, p3))
 
 #define __DEFINE_LXSYSCALL4(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4)     \
-    asmlinkage rettype __lxsys_##nam(                                          \
+    asmlinkage rettype __lxsys_##name(                                         \
       __PARAM_MAP4(t1, p1, t2, p2, t3, p3, t4, p4))
 
+#define __DEFINE_LXSYSCALL5(                                                   \
+  rettype, name, t1, p1, t2, p2, t3, p3, t4, p4, t5, p5)                       \
+    asmlinkage rettype __lxsys_##name(                                         \
+      __PARAM_MAP5(t1, p1, t2, p2, t3, p3, t4, p4, t5, p5))
+
+#define __SYSCALL_INTERRUPTIBLE(code)                                          \
+    asm("sti");                                                                \
+    { code };                                                                  \
+    asm("cli");
+
+#define ___DOINT33(callcode, rettype)                                          \
+    int v;                                                                     \
+    asm volatile("int %1\n" : "=a"(v) : "i"(LUNAIX_SYS_CALL), "a"(callcode));  \
+    return (rettype)v;
+
 #define __LXSYSCALL(rettype, name)                                             \
     static rettype name()                                                      \
     {                                                                          \
@@ -83,10 +139,29 @@ syscall(unsigned int callcode)
     }
 
 #define __LXSYSCALL4(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4)            \
-    static rettype name(__PARAM_MAP3(t1, p1, t2, p2, t3, p3, t4, p4))          \
+    static rettype name(__PARAM_MAP4(t1, p1, t2, p2, t3, p3, t4, p4))          \
     {                                                                          \
         asm("\n" ::"b"(p1), "c"(p2), "d"(p3), "D"(p4));                        \
         ___DOINT33(__SYSCALL_##name, rettype)                                  \
     }
+
+#define __LXSYSCALL5(rettype, name, t1, p1, t2, p2, t3, p3, t4, p4, t5, p5)    \
+    static rettype name(__PARAM_MAP5(t1, p1, t2, p2, t3, p3, t4, p4, t5, p5))  \
+    {                                                                          \
+        asm("movl %0, %%ebp\n" ::"r"(p5), "b"(p1), "c"(p2), "d"(p3), "D"(p4)   \
+            : "%ebp");                                                         \
+        ___DOINT33(__SYSCALL_##name, rettype)                                  \
+    }
+
+#define __LXSYSCALL2_VARG(rettype, name, t1, p1, t2, p2)                       \
+    __attribute__((noinline)) static rettype name(                             \
+      __PARAM_MAP2(t1, p1, t2, p2), ...)                                       \
+    {                                                                          \
+        /* No inlining! This depends on the call frame assumption */           \
+        void* _last = (void*)&p2 + sizeof(void*);                              \
+        asm("\n" ::"b"(p1), "c"(p2), "d"(_last));                              \
+        ___DOINT33(__SYSCALL_##name, rettype)                                  \
+    }
 #endif
+
 #endif /* __LUNAIX_SYSCALL_H */