From 42fda66387daa53538ae13a2c858396aaf037158 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Tue, 16 Oct 2007 01:26:50 -0700 Subject: uml: throw out CONFIG_MODE_TT This patchset throws out tt mode, which has been non-functional for a while. This is done in phases, interspersed with code cleanups on the affected files. The removal is done as follows: remove all code, config options, and files which depend on CONFIG_MODE_TT get rid of the CHOOSE_MODE macro, which decided whether to call tt-mode or skas-mode code, and replace invocations with their skas portions replace all now-trivial procedures with their skas equivalents There are now a bunch of now-redundant pieces of data structures, including mode-specific pieces of the thread structure, pt_regs, and mm_context. These are all replaced with their skas-specific contents. As part of the ongoing style compliance project, I made a style pass over all files that were changed. There are three such patches, one for each phase, covering the files affected by that phase but no later ones. I noticed that we weren't freeing the LDT state associated with a process when it exited, so that's fixed in one of the later patches. The last patch is a tidying patch which I've had for a while, but which caused inexplicable crashes under tt mode. Since that is no longer a problem, this can now go in. This patch: Start getting rid of tt mode support. This patch throws out CONFIG_MODE_TT and all config options, code, and files which depend on it. CONFIG_MODE_SKAS is gone and everything that depends on it is included unconditionally. The few changed lines are in re-written Kconfig help, lines which needed something skas-related removed from them, and a few more which weren't strictly deletions. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/include/kern_util.h | 6 ------ 1 file changed, 6 deletions(-) (limited to 'arch/um/include/kern_util.h') diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h index b84b5dadb958..578156db3039 100644 --- a/arch/um/include/kern_util.h +++ b/arch/um/include/kern_util.h @@ -34,9 +34,6 @@ extern int nsyscalls; UML_ROUND_DOWN(((unsigned long) addr) + PAGE_SIZE - 1) extern int kernel_fork(unsigned long flags, int (*fn)(void *), void * arg); -#ifdef UML_CONFIG_MODE_TT -extern unsigned long stack_sp(unsigned long page); -#endif extern int kernel_thread_proc(void *data); extern void syscall_segv(int sig); extern int current_pid(void); @@ -82,9 +79,6 @@ extern void check_stack_overflow(void *ptr); extern void relay_signal(int sig, union uml_pt_regs *regs); extern int user_context(unsigned long sp); extern void timer_irq(union uml_pt_regs *regs); -#ifdef CONFIG_MODE_TT -extern void unprotect_stack(unsigned long stack); -#endif extern void do_uml_exitcalls(void); extern int attach_debugger(int idle_pid, int pid, int stop); extern int config_gdb(char *str); -- cgit v1.2.3