Changeset 758

Timestamp:

07/09/08 15:24:41 (5 months ago)

Author:

mwhitworth

Message:

Add support for passing arguments to kernel threads.

Files:

• Whitix/branches/fs/arch/i386/kernel/process.c (modified) (3 diffs)

Whitix/branches/fs/arch/i386/kernel/process.c

@@ -95 +95 @@
                 *--currP=(DWORD)argument;
 
+        /* The thread returns to the exit code page upon finishing. */
         *--currP=exitCode;
         ret->esp3=(DWORD)currP;
@@ -108 +109 @@
         int i;
 
-        /* Allocate the stacks needed */
+        /* Allocate the kernel stack. */
         ret->currStack=(DWORD)MemAlloc(ARCH_STACK_SIZE);
-        ret->currStack+=ARCH_STACK_SIZE; /* Needs to be shared, can't be in it's own process */
+        ret->currStack+=ARCH_STACK_SIZE;
         ret->entry=entry; /* eip */
 
@@ -117 +118 @@
 
         currP=(DWORD*)(ret->currStack);
+
+        /* Push the given argument on the kernel stack if this is not a user thread. */
+        if (!user)
+                if (argument != ((void*)-1))
+                {
+                        *--currP=(DWORD)argument;
+                        *--currP=0;
+                }
 
         /* Is a kernel thread? */