Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c
new file mode 100644
index 0000000..31bcb2f
--- /dev/null
+++ b/arch/um/sys-i386/ldt.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include "linux/config.h"
+#include "linux/slab.h"
+#include "asm/uaccess.h"
+#include "asm/ptrace.h"
+#include "choose-mode.h"
+#include "kern.h"
+
+#ifdef CONFIG_MODE_TT
+extern int modify_ldt(int func, void *ptr, unsigned long bytecount);
+
+/* XXX this needs copy_to_user and copy_from_user */
+
+int sys_modify_ldt_tt(int func, void __user *ptr, unsigned long bytecount)
+{
+ if (!access_ok(VERIFY_READ, ptr, bytecount))
+ return -EFAULT;
+
+ return modify_ldt(func, ptr, bytecount);
+}
+#endif
+
+#ifdef CONFIG_MODE_SKAS
+extern int userspace_pid;
+
+#include "skas_ptrace.h"
+
+int sys_modify_ldt_skas(int func, void __user *ptr, unsigned long bytecount)
+{
+ struct ptrace_ldt ldt;
+ void *buf;
+ int res, n;
+
+ buf = kmalloc(bytecount, GFP_KERNEL);
+ if(buf == NULL)
+ return(-ENOMEM);
+
+ res = 0;
+
+ switch(func){
+ case 1:
+ case 0x11:
+ res = copy_from_user(buf, ptr, bytecount);
+ break;
+ }
+
+ if(res != 0){
+ res = -EFAULT;
+ goto out;
+ }
+
+ ldt = ((struct ptrace_ldt) { .func = func,
+ .ptr = buf,
+ .bytecount = bytecount });
+ res = ptrace(PTRACE_LDT, userspace_pid, 0, (unsigned long) &ldt);
+ if(res < 0)
+ goto out;
+
+ switch(func){
+ case 0:
+ case 2:
+ n = res;
+ res = copy_to_user(ptr, buf, n);
+ if(res != 0)
+ res = -EFAULT;
+ else
+ res = n;
+ break;
+ }
+
+ out:
+ kfree(buf);
+ return(res);
+}
+#endif
+
+int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount)
+{
+ return(CHOOSE_MODE_PROC(sys_modify_ldt_tt, sys_modify_ldt_skas, func,
+ ptr, bytecount));
+}
+
+
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */