Handle process arguments

kernel/proc/proc.c

@@ -198,7 +198,6 @@ Proc *proc_nextready(void) {
     }
     proc = proc->next;
   }
-  return proc;
 }
 
 void proc_reaper(void) {
@@ -243,6 +242,14 @@ void proc_reaper(void) {
         }
 
         pmm_free((uintptr_t)zombie->platformdata.cr3, 1);
+
+        ProcArg *arg = zombie->procargs.list;
+        while (arg) {
+          dlfree(arg->string);
+          ProcArg *tmp = arg;
+          arg = arg->next;
+          dlfree(tmp);
+        }
       }
       dlfree(zombie);
     } else {
@@ -251,19 +258,21 @@ void proc_reaper(void) {
   }
 }
 
+extern void hal_zombiespin(void);
+
 void proc_sched(void *cpustate) {
   hal_intr_disable();
   sched_ticks++;
 
-  if (sched_ticks % PROC_REAPER_FREQ == 0) {
-    proc_reaper();
-  }
-
   IntrStackFrame *frame = cpustate;
 
   PROCS.current->platformdata.trapframe = *frame;
-    
+  
   PROCS.current = proc_nextready();
+  
+  if (sched_ticks % PROC_REAPER_FREQ == 0) {
+    proc_reaper();
+  }
 
   hal_switchproc(&PROCS.current->platformdata.trapframe, (void *)PROCS.current->platformdata.cr3);
 }

kernel/proc/proc.h

@@ -7,6 +7,7 @@
 #include "bitmap/bitmap.h"
 #include "vfs/vfs.h"
 #include "ipc/pipe/pipe.h"
+#include "sysdefs/processctl.h"
 
 #define PROC_NAME_MAX 0x100
 
@@ -33,6 +34,11 @@ enum {
   PROC_WAITING = 3,
 };
 
+typedef struct ProcArg {
+  struct ProcArg *next;
+  char string[PROC_ARG_MAX];
+} ProcArg;
+
 typedef struct Proc {
   struct Proc *next;
 
@@ -53,6 +59,10 @@ typedef struct Proc {
     IpcPipe *list;
     SpinLock spinlock;
   } bcast_pipes;
+  struct {
+    ProcArg *list;
+    size_t len;
+  } procargs;
 
   uint64_t mman_map_base;
 } Proc;
@@ -79,4 +89,12 @@ void proc_kill(Proc *proc);
     for(;;); \
   } while(0)
 
+
+#define PROC_ARG(proc, str) \
+  do { \
+    ProcArg *__arg = dlmalloc(sizeof(*__arg)); \
+    hal_strcpy(__arg->string, (str)); \
+    LL_APPEND((proc)->procargs.list, __arg); \
+    (proc)->procargs.len++; \
+  } while(0)
 #endif // PROC_PROC_H_