77bf440031
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>
83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
/*
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* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
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* Licensed under the GPL
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*/
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#include "linux/sched.h"
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#include "linux/slab.h"
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#include "linux/ptrace.h"
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#include "linux/proc_fs.h"
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#include "linux/file.h"
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#include "linux/errno.h"
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#include "linux/init.h"
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#include "asm/uaccess.h"
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#include "asm/atomic.h"
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#include "kern_util.h"
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#include "as-layout.h"
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#include "skas.h"
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#include "os.h"
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#include "tlb.h"
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#include "kern.h"
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#include "registers.h"
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extern void schedule_tail(struct task_struct *prev);
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int new_mm(unsigned long stack)
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{
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int fd;
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fd = os_open_file("/proc/mm", of_cloexec(of_write(OPENFLAGS())), 0);
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if(fd < 0)
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return fd;
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if(skas_needs_stub)
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map_stub_pages(fd, CONFIG_STUB_CODE, CONFIG_STUB_DATA, stack);
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return fd;
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}
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extern void start_kernel(void);
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static int __init start_kernel_proc(void *unused)
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{
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int pid;
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block_signals();
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pid = os_getpid();
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cpu_tasks[0].pid = pid;
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cpu_tasks[0].task = current;
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#ifdef CONFIG_SMP
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cpu_online_map = cpumask_of_cpu(0);
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#endif
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start_kernel();
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return 0;
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}
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extern int userspace_pid[];
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extern char cpu0_irqstack[];
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int __init start_uml(void)
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{
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stack_protections((unsigned long) &cpu0_irqstack);
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set_sigstack(cpu0_irqstack, THREAD_SIZE);
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if(proc_mm)
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userspace_pid[0] = start_userspace(0);
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init_new_thread_signals();
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init_task.thread.request.u.thread.proc = start_kernel_proc;
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init_task.thread.request.u.thread.arg = NULL;
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return start_idle_thread(task_stack_page(&init_task),
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&init_task.thread.switch_buf);
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}
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unsigned long current_stub_stack(void)
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{
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if(current->mm == NULL)
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return 0;
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return current->mm->context.skas.id.stack;
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}
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