Fix warnings

devfs/main.c

@@ -6,6 +6,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
+#include <string.h>
 
 int num_devs;
 int max_devs;
@@ -79,8 +80,8 @@ int main() {
   rpc_register_func("mount",&devfs_mount);
   rpc_register_func("open",&open);
   rpc_register_func("register_dev",&register_dev);
-  rpc_mark_as_init();
   register_fs("devfs",getpid());
   serial_print("Initialized devfs\n");
+  rpc_mark_as_init();
 }
 

initrd_drv/main.c

@@ -5,17 +5,18 @@
 #include <string.h>
 #include <pthread.h>
 #include <serdes.h>
+#include <unistd.h>
 
 char* initrd;
 long initrd_size;
 
-void read(char* args) {
+void read(void* args) {
   serdes_state state;
   start_deserialize(args,&state);
   deserialize_ptr(&state);
   size_t size=deserialize_int(&state);
   int pos=deserialize_int(&state);
-  rpc_deallocate_buf(args,state.buf);
+  rpc_deallocate_buf(args,state.sizeorpos);
   long max_data=initrd_size-pos;
   if (size>max_data) {
     serial_print("Reading too much data from initrd\n");
@@ -52,13 +53,13 @@ int main() {
   initrd=malloc(initrd_size);
   initrd_get(initrd);
   rpc_register_func("read",&read);
-  rpc_mark_as_init();
   serdes_state state={0};
   serialize_str("initrd",&state);
   serialize_int(getpid(),&state);
   rpc_call(3,"register_dev",state.buf,state.sizeorpos);
   free(state.buf);
   serial_print("Initrd driver initialized\n");
+  rpc_mark_as_init();
 }
 
 // #include <dbg.h>

kernel/cpu/i386/paging.c

@@ -236,6 +236,6 @@ void* get_address_space() {
 }
 
 void dealloc_pages(int num_pages,void* addr) {
-  pmem_free((uint32_t)virt_to_phys(addr)>>12,num_pages);
+  pmem_free((void*)((uint32_t)virt_to_phys(addr)>>12),num_pages);
   unmap_pages(addr,num_pages);
 }

kernel/cpu/serial_indep.c

@@ -1,6 +1,7 @@
 #include "serial.h"
 #include <stdint.h>
 #include <stdarg.h>
+#include <string.h>
 
 void serial_write_string(const char* s) {
   for (int i=0;s[i]!='\0';i++) {

kernel/rpc.c

@@ -12,6 +12,7 @@
 #include "kmalloc.h"
 #include <string.h>
 #include "cpu/serial.h"
+#include "cpu/halt.h"
 
 /**
  * Represents a thread waiting for a process to finish RPC init
@@ -38,15 +39,15 @@ static void mark_init(pid_t pid) {
   process_ready_bmap[byte]=process_ready_bmap[byte]|(1<<bit);
 }
 
-/**
- * Mark a process as not ready to accept RPC calls
- * \param pid The pid to mark
-*/
-static void clear_init(pid_t pid) {
-  size_t byte=pid/8;
-  size_t bit=pid%8;
-  process_ready_bmap[byte]=process_ready_bmap[byte]&(~(1<<bit));
-}
+// /**
+//  * Mark a process as not ready to accept RPC calls
+//  * \param pid The pid to mark
+// */
+// static void clear_init(pid_t pid) {
+//   size_t byte=pid/8;
+//   size_t bit=pid%8;
+//   process_ready_bmap[byte]=process_ready_bmap[byte]&(~(1<<bit));
+// }
 
 char kernel_rpc_is_init(pid_t pid) {
   size_t byte=pid/8;

kernel/rpc.h

@@ -7,7 +7,7 @@
 
 #include <stddef.h>
 
-typedef void* (*rpc_func)(void*); //!< Type of an RPC function
+typedef void (*rpc_func)(void*); //!< Type of an RPC function
 
 /**
  * Represents an RPC fumctiom with name 

libc/rpc.h

@@ -4,7 +4,7 @@
 #include <sys/types.h>
 #include <stddef.h>
 
-typedef void* (*rpc_func)(void*); //!< Type of an RPC function
+typedef void (*rpc_func)(void*); //!< Type of an RPC function
 
 /**
  * Call an RPC function

libc/stdio.c

@@ -23,14 +23,12 @@ void __stdio_init() {
 
 FILE* fopen(char* filename,char* mode) {
   serdes_state state={0};
-  serialize_int(1,&state);
-  serialize_int(0,&state);
   serialize_str(filename,&state);
   void* retval=rpc_call(2,"open",state.buf,state.sizeorpos);
   free(state.buf);
   start_deserialize(retval,&state);
   int err=deserialize_int(&state);
-  void* fs_data=deserialize_int(&state);
+  void* fs_data=deserialize_ptr(&state);
   pid_t fs_pid=deserialize_int(&state);
   rpc_deallocate_buf(retval,state.sizeorpos);
   if (err) {
@@ -144,7 +142,7 @@ size_t fwrite(void* buffer_ptr,size_t size,size_t count,FILE* stream) {
 
 void register_fs(const char* name,pid_t pid) {
   serdes_state state={0};
-  serialize_str(name,&state);
+  serialize_str((char*)name,&state);
   serialize_int(pid,&state);
   rpc_call(2,"register_fs",state.buf,state.sizeorpos);
 }
@@ -257,4 +255,5 @@ int fseek(FILE* stream,long offset,int origin) {
   default:
     break;
   }
+  return 0;
 }

libc/sys/syscalls.h

@@ -27,6 +27,6 @@
 #define SYSCALL_DEALLOCTATE_RPC_RET 17
 #define SYSCALL_RPC_RET 18
 #define SYSCALL_RPC_MARK_AS_INIT 21
-
+#define SYSCALL_RPC_IS_INIT 22
 
 #endif

vfs/main.c

@@ -30,7 +30,7 @@ static int vfsstrcmp(const char* s1,const char* s2) {
 mount_point* mount_point_list=NULL;
 fs_type* fs_type_list=NULL;
 
-void vfs_mount(char* args) {
+void vfs_mount(void* args) {
   serdes_state state;
   start_deserialize(args,&state);
   char* type=deserialize_str(&state);
@@ -39,7 +39,6 @@ void vfs_mount(char* args) {
   rpc_deallocate_buf(args,state.sizeorpos);
   fs_type* fstype=fs_type_list;
   pid_t fs_pid=0;
-  size_t mntpnt_len=0;
   for (;fstype!=NULL;fstype=fstype->next) {
     if (vfsstrcmp(type,fstype->name)==0) {
       fs_pid=fstype->fs_pid;
@@ -74,7 +73,7 @@ void vfs_mount(char* args) {
   pthread_exit(NULL);
 }
 
-void vfs_register_fs(char* args) {
+void vfs_register_fs(void* args) {
   serdes_state state;
   start_deserialize(args,&state);
   char* name=deserialize_str(&state);
@@ -89,11 +88,9 @@ void vfs_register_fs(char* args) {
   pthread_exit(NULL);
 }
 
-void open(char* args) {
+void open(void* args) {
   serdes_state state;
   start_deserialize(args,&state);
-  pid_t pid=deserialize_int(&state);
-  int perms=deserialize_int(&state);
   char* path=deserialize_str(&state);
   rpc_deallocate_buf(args,state.sizeorpos);
   mount_point* mnt=mount_point_list;

vga_drv/main.c

@@ -2,6 +2,8 @@
 #include <serdes.h>
 #include <pthread.h>
 #include <unistd.h>
+#include <stdlib.h>
+#include <dbg.h>
 #include "vga.h"
 
 void write(void* args) {
@@ -9,9 +11,9 @@ void write(void* args) {
   start_deserialize(args,&state);
   deserialize_ptr(&state);
   size_t size=deserialize_int(&state);
-  int pos=deserialize_int(&state);
+  deserialize_int(&state);
   char* buf=deserialize_ary(size,&state);
-  rpc_deallocate_buf(args,state.buf);
+  rpc_deallocate_buf(args,state.sizeorpos);
   vga_write_string(buf);
   state.buf=NULL;
   state.sizeorpos=0;
@@ -24,11 +26,11 @@ void write(void* args) {
 int main() {
   vga_init();
   rpc_register_func("write",&write);
-  rpc_mark_as_init();
   serdes_state state={0};
   serialize_str("vga",&state);
   serialize_int(getpid(),&state);
   rpc_call(3,"register_dev",state.buf,state.sizeorpos);
   free(state.buf);
   serial_print("VGA driver initialized\n");
+  rpc_mark_as_init();
 }