uml: remove code made redundant by CHOOSE_MODE removal
This patch makes a number of simplifications enabled by the removal of
CHOOSE_MODE. There were lots of functions that looked like
int foo(args){
foo_skas(args);
}
The bodies of foo_skas are now folded into foo, and their declarations (and
sometimes entire header files) are deleted.
In addition, the union uml_pt_regs, which was a union between the tt and skas
register formats, is now a struct, with the tt-mode arm of the union being
removed.
It turns out that usr2_handler was unused, so it is gone.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 9f3a207..5f3e13c 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -35,8 +35,6 @@
#include "initrd.h"
#include "init.h"
#include "os.h"
-#include "mode_kern.h"
-#include "mode.h"
#include "skas.h"
#define DEFAULT_COMMAND_LINE "root=98:0"
@@ -67,7 +65,8 @@
unsigned long thread_saved_pc(struct task_struct *task)
{
- return os_process_pc(thread_pid_skas(task));
+ /* FIXME: Need to look up userspace_pid by cpu */
+ return os_process_pc(userspace_pid[0]);
}
/* Changed in setup_arch, which is called in early boot */
@@ -253,6 +252,19 @@
extern char __binary_start;
+static unsigned long set_task_sizes_skas(unsigned long *task_size_out)
+{
+ /* Round up to the nearest 4M */
+ unsigned long host_task_size = ROUND_4M((unsigned long)
+ &host_task_size);
+
+ if (!skas_needs_stub)
+ *task_size_out = host_task_size;
+ else *task_size_out = CONFIG_STUB_START & PGDIR_MASK;
+
+ return host_task_size;
+}
+
int __init linux_main(int argc, char **argv)
{
unsigned long avail, diff;
@@ -289,7 +301,7 @@
os_fill_handlinfo(handlinfo_kern);
brk_start = (unsigned long) sbrk(0);
- before_mem_skas(brk_start);
+
/* Increase physical memory size for exec-shield users
so they actually get what they asked for. This should
add zero for non-exec shield users */
@@ -354,7 +366,7 @@
stack_protections((unsigned long) &init_thread_info);
os_flush_stdout();
- return start_uml_skas();
+ return start_uml();
}
extern int uml_exitcode;