[PATCH] uml: move libc-dependent utility procedures

The serial UML OS-abstraction layer patch (um/kernel dir).

This moves all systemcalls from user_util.c file under os-Linux dir

Signed-off-by: Gennady Sharapov <Gennady.V.Sharapov@intel.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

6 files changed, 6 insertions, 178 deletions

diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile
index 193cc2b7448d..165c8639c9f6 100644
--- a/arch/um/kernel/Makefile
+++ b/arch/um/kernel/Makefile
@@ -10,8 +10,7 @@ obj-y = config.o exec_kern.o exitcode.o \
         init_task.o irq.o irq_user.o ksyms.o mem.o physmem.o \
         process_kern.o ptrace.o reboot.o resource.o sigio_user.o sigio_kern.o \
         signal_kern.o smp.o syscall_kern.o sysrq.o time.o \
-        time_kern.o tlb.o trap_kern.o uaccess.o um_arch.o umid.o \
-        user_util.o
+        time_kern.o tlb.o trap_kern.o uaccess.o um_arch.o umid.o
 
 obj-$(CONFIG_BLK_DEV_INITRD) += initrd.o
 obj-$(CONFIG_GPROF)     += gprof_syms.o
@@ -24,7 +23,7 @@ obj-$(CONFIG_MODE_SKAS) += skas/
 
 user-objs-$(CONFIG_TTY_LOG) += tty_log.o
 
-USER_OBJS := $(user-objs-y) config.o time.o tty_log.o user_util.o
+USER_OBJS := $(user-objs-y) config.o time.o tty_log.o
 
 include arch/um/scripts/Makefile.rules
 
diff --git a/arch/um/kernel/skas/uaccess.c b/arch/um/kernel/skas/uaccess.c
index a5a47528dec7..5992c3257167 100644
--- a/arch/um/kernel/skas/uaccess.c
+++ b/arch/um/kernel/skas/uaccess.c
@@ -13,7 +13,7 @@
 #include "asm/pgtable.h"
 #include "asm/uaccess.h"
 #include "kern_util.h"
-#include "user_util.h"
+#include "os.h"
 
 extern void *um_virt_to_phys(struct task_struct *task, unsigned long addr,
                              pte_t *pte_out);
diff --git a/arch/um/kernel/tt/gdb.c b/arch/um/kernel/tt/gdb.c
index 37e22d71a0d9..786e4edd86c5 100644
--- a/arch/um/kernel/tt/gdb.c
+++ b/arch/um/kernel/tt/gdb.c
@@ -20,6 +20,7 @@
 #include "user_util.h"
 #include "tt.h"
 #include "sysdep/thread.h"
+#include "os.h"
 
 extern int debugger_pid;
 extern int debugger_fd;
diff --git a/arch/um/kernel/tt/ptproxy/ptrace.c b/arch/um/kernel/tt/ptproxy/ptrace.c
index 528a5fc8d887..03774427d468 100644
--- a/arch/um/kernel/tt/ptproxy/ptrace.c
+++ b/arch/um/kernel/tt/ptproxy/ptrace.c
@@ -20,6 +20,7 @@ Jeff Dike (jdike@karaya.com) : Modified for integration into uml
 #include "kern_util.h"
 #include "ptrace_user.h"
 #include "tt.h"
+#include "os.h"
 
 long proxy_ptrace(struct debugger *debugger, int arg1, pid_t arg2,
                   long arg3, long arg4, pid_t child, int *ret)
diff --git a/arch/um/kernel/tt/ptproxy/sysdep.c b/arch/um/kernel/tt/ptproxy/sysdep.c
index a5f0e01e214e..99f178319d03 100644
--- a/arch/um/kernel/tt/ptproxy/sysdep.c
+++ b/arch/um/kernel/tt/ptproxy/sysdep.c
@@ -15,6 +15,7 @@ terms and conditions.
 #include "ptrace_user.h"
 #include "user_util.h"
 #include "user.h"
+#include "os.h"
 
 int get_syscall(pid_t pid, long *arg1, long *arg2, long *arg3, long *arg4, 
                 long *arg5)
diff --git a/arch/um/kernel/user_util.c b/arch/um/kernel/user_util.c
deleted file mode 100644
index 4c231161f257..000000000000
--- a/arch/um/kernel/user_util.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/* 
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <limits.h>
-#include <setjmp.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/utsname.h>
-#include <sys/param.h>
-#include <sys/time.h>
-#include "asm/types.h"
-#include <ctype.h>
-#include <signal.h>
-#include <wait.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <sched.h>
-#include <termios.h>
-#include <string.h>
-#include "user_util.h"
-#include "kern_util.h"
-#include "user.h"
-#include "mem_user.h"
-#include "init.h"
-#include "ptrace_user.h"
-#include "uml-config.h"
-
-void stop(void)
-{
-        while(1) sleep(1000000);
-}
-
-void stack_protections(unsigned long address)
-{
-        int prot = PROT_READ | PROT_WRITE | PROT_EXEC;
-
-        if(mprotect((void *) address, page_size(), prot) < 0)
-                panic("protecting stack failed, errno = %d", errno);
-}
-
-void task_protections(unsigned long address)
-{
-        unsigned long guard = address + page_size();
-        unsigned long stack = guard + page_size();
-        int prot = 0, pages;
-
-#ifdef notdef
-        if(mprotect((void *) stack, page_size(), prot) < 0)
-                panic("protecting guard page failed, errno = %d", errno);
-#endif
-        pages = (1 << UML_CONFIG_KERNEL_STACK_ORDER) - 2;
-        prot = PROT_READ | PROT_WRITE | PROT_EXEC;
-        if(mprotect((void *) stack, pages * page_size(), prot) < 0)
-                panic("protecting stack failed, errno = %d", errno);
-}
-
-int wait_for_stop(int pid, int sig, int cont_type, void *relay)
-{
-        sigset_t *relay_signals = relay;
-        int status, ret;
-
-        while(1){
-                CATCH_EINTR(ret = waitpid(pid, &status, WUNTRACED));
-                if((ret < 0) ||
-                   !WIFSTOPPED(status) || (WSTOPSIG(status) != sig)){
-                        if(ret < 0){
-                                printk("wait failed, errno = %d\n",
-                                       errno);
-                        }
-                        else if(WIFEXITED(status)) 
-                                printk("process %d exited with status %d\n",
-                                       pid, WEXITSTATUS(status));
-                        else if(WIFSIGNALED(status))
-                                printk("process %d exited with signal %d\n",
-                                       pid, WTERMSIG(status));
-                        else if((WSTOPSIG(status) == SIGVTALRM) ||
-                                (WSTOPSIG(status) == SIGALRM) ||
-                                (WSTOPSIG(status) == SIGIO) ||
-                                (WSTOPSIG(status) == SIGPROF) ||
-                                (WSTOPSIG(status) == SIGCHLD) ||
-                                (WSTOPSIG(status) == SIGWINCH) ||
-                                (WSTOPSIG(status) == SIGINT)){
-                                ptrace(cont_type, pid, 0, WSTOPSIG(status));
-                                continue;
-                        }
-                        else if((relay_signals != NULL) &&
-                                sigismember(relay_signals, WSTOPSIG(status))){
-                                ptrace(cont_type, pid, 0, WSTOPSIG(status));
-                                continue;
-                        }
-                        else printk("process %d stopped with signal %d\n",
-                                    pid, WSTOPSIG(status));
-                        panic("wait_for_stop failed to wait for %d to stop "
-                              "with %d\n", pid, sig);
-                }
-                return(status);
-        }
-}
-
-int raw(int fd)
-{
-        struct termios tt;
-        int err;
-
-        CATCH_EINTR(err = tcgetattr(fd, &tt));
-        if(err < 0)
-                return -errno;
-
-        cfmakeraw(&tt);
-
-        CATCH_EINTR(err = tcsetattr(fd, TCSADRAIN, &tt));
-        if(err < 0)
-                return -errno;
-
-        /* XXX tcsetattr could have applied only some changes
-         * (and cfmakeraw() is a set of changes) */
-        return(0);
-}
-
-void setup_machinename(char *machine_out)
-{
-        struct utsname host;
-
-        uname(&host);
-#if defined(UML_CONFIG_UML_X86) && !defined(UML_CONFIG_64BIT)
-        if (!strcmp(host.machine, "x86_64")) {
-                strcpy(machine_out, "i686");
-                return;
-        }
-#endif
-        strcpy(machine_out, host.machine);
-}
-
-char host_info[(_UTSNAME_LENGTH + 1) * 4 + _UTSNAME_NODENAME_LENGTH + 1];
-
-void setup_hostinfo(void)
-{
-        struct utsname host;
-
-        uname(&host);
-        sprintf(host_info, "%s %s %s %s %s", host.sysname, host.nodename,
-                host.release, host.version, host.machine);
-}
-
-int setjmp_wrapper(void (*proc)(void *, void *), ...)
-{
-        va_list args;
-        sigjmp_buf buf;
-        int n;
-
-        n = sigsetjmp(buf, 1);
-        if(n == 0){
-                va_start(args, proc);
-                (*proc)(&buf, &args);
-        }
-        va_end(args);
-        return(n);
-}
-
-/*
- * 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:
- */