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-rw-r--r--include/kernel/sched.h33
-rw-r--r--include/kernel/sys.h6
2 files changed, 29 insertions, 10 deletions
diff --git a/include/kernel/sched.h b/include/kernel/sched.h
index afced68..a3d95e0 100644
--- a/include/kernel/sched.h
+++ b/include/kernel/sched.h
@@ -2,27 +2,44 @@
#define _SCHED_H
#include <stdint.h>
+#include <unistd.h>
-struct task_state {
- uint32_t ss;
- uint32_t esp;
- uint32_t eflags;
- uint32_t cs;
+struct tss_struct {
+ uint32_t prevt;
+ uint32_t esp0;
+ uint32_t ss0;
+ uint32_t esp1;
+ uint32_t ss1;
+ uint32_t esp2;
+ uint32_t ss2;
+ uint32_t cr3;
uint32_t eip;
+ uint32_t eflags;
uint32_t eax;
uint32_t ecx;
uint32_t edx;
uint32_t ebx;
- uint32_t esp_garbage;
+ uint32_t esp;
uint32_t ebp;
uint32_t esi;
uint32_t edi;
+ uint32_t es;
+ uint32_t cs;
+ uint32_t ss;
+ uint32_t ds;
+ uint32_t fs;
+ uint32_t gs;
+ uint32_t ldt;
+ uint32_t io_map;
} __attribute__((packed));
struct task_struct {
- struct task_state state;
+ pid_t pid;
+ struct tss_struct state;
} __attribute__((packed));
-void userspace_init(void);
+extern struct task_struct *ctask;
+
+void sched_init(void);
#endif
diff --git a/include/kernel/sys.h b/include/kernel/sys.h
index 7c129d2..248a93b 100644
--- a/include/kernel/sys.h
+++ b/include/kernel/sys.h
@@ -2,13 +2,15 @@ typedef int (*syscall_t) (void);
extern int sys_puts(void);
extern int sys_time(void);
+extern int sys_getpid(void);
+extern int sys_getpdir(void);
extern int sys_dummy(void);
syscall_t call_table[256] = {
[0] = &sys_puts,
[1] = &sys_time,
- [2] = &sys_dummy,
- [3] = &sys_dummy,
+ [2] = &sys_getpid,
+ [3] = &sys_getpdir,
[4] = &sys_dummy,
[5] = &sys_dummy,
[6] = &sys_dummy,