From 1d3468a6643a6a5905e2ac9ae1fa1aefc06d882a Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Mon, 10 Jul 2006 04:45:13 -0700 Subject: [PATCH] uml: move _kern.c files Move most *_kern.c files in arch/um/kernel to *.c. This makes UML somewhat more closely resemble the other arches. [akpm@osdl.org: use the new INTF_* flags] Signed-off-by: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/exec.c | 86 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 arch/um/kernel/exec.c (limited to 'arch/um/kernel/exec.c') diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c new file mode 100644 index 00000000000..fc38a6d5906 --- /dev/null +++ b/arch/um/kernel/exec.c @@ -0,0 +1,86 @@ +/* + * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#include "linux/slab.h" +#include "linux/smp_lock.h" +#include "linux/ptrace.h" +#include "asm/ptrace.h" +#include "asm/pgtable.h" +#include "asm/tlbflush.h" +#include "asm/uaccess.h" +#include "user_util.h" +#include "kern_util.h" +#include "mem_user.h" +#include "kern.h" +#include "irq_user.h" +#include "tlb.h" +#include "os.h" +#include "choose-mode.h" +#include "mode_kern.h" + +void flush_thread(void) +{ + arch_flush_thread(¤t->thread.arch); + CHOOSE_MODE(flush_thread_tt(), flush_thread_skas()); +} + +void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp) +{ + CHOOSE_MODE_PROC(start_thread_tt, start_thread_skas, regs, eip, esp); +} + +#ifdef CONFIG_TTY_LOG +extern void log_exec(char **argv, void *tty); +#endif + +static long execve1(char *file, char __user * __user *argv, + char __user *__user *env) +{ + long error; + +#ifdef CONFIG_TTY_LOG + task_lock(current); + log_exec(argv, current->signal->tty); + task_unlock(current); +#endif + error = do_execve(file, argv, env, ¤t->thread.regs); + if (error == 0){ + task_lock(current); + current->ptrace &= ~PT_DTRACE; +#ifdef SUBARCH_EXECVE1 + SUBARCH_EXECVE1(¤t->thread.regs.regs); +#endif + task_unlock(current); + set_cmdline(current_cmd()); + } + return(error); +} + +long um_execve(char *file, char __user *__user *argv, char __user *__user *env) +{ + long err; + + err = execve1(file, argv, env); + if(!err) + do_longjmp(current->thread.exec_buf, 1); + return(err); +} + +long sys_execve(char __user *file, char __user *__user *argv, + char __user *__user *env) +{ + long error; + char *filename; + + lock_kernel(); + filename = getname(file); + error = PTR_ERR(filename); + if (IS_ERR(filename)) goto out; + error = execve1(filename, argv, env); + putname(filename); + out: + unlock_kernel(); + return(error); +} -- cgit v1.2.3-70-g09d2