Merge git://oss.sgi.com:8090/oss/git/rc-fixes-xfs-2.6

[pandora-kernel.git] / arch / um / os-Linux / start_up.c

diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 37517d4..829d6b0 100644 (file)
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -24,13 +24,11 @@
 #include "kern_util.h"
 #include "user.h"
 #include "signal_kern.h"
-#include "signal_user.h"
 #include "sysdep/ptrace.h"
 #include "sysdep/sigcontext.h"
 #include "irq_user.h"
 #include "ptrace_user.h"
 #include "mem_user.h"
-#include "time_user.h"
 #include "init.h"
 #include "os.h"
 #include "uml-config.h"
@@ -51,6 +49,7 @@ static int ptrace_child(void *arg)
        int pid = os_getpid(), ppid = getppid();
        int sc_result;
 
+       change_sig(SIGWINCH, 0);
        if(ptrace(PTRACE_TRACEME, 0, 0, 0) < 0){
                perror("ptrace");
                os_kill_process(pid, 0);
@@ -116,16 +115,16 @@ static int stop_ptraced_child(int pid, void *stack, int exitcode,
        if(!WIFEXITED(status) || (WEXITSTATUS(status) != exitcode)) {
                int exit_with = WEXITSTATUS(status);
                if (exit_with == 2)
-                       printk("check_ptrace : child exited with status 2. "
+                       printf("check_ptrace : child exited with status 2. "
                               "Serious trouble happening! Try updating your "
                               "host skas patch!\nDisabling SYSEMU support.");
-               printk("check_ptrace : child exited with exitcode %d, while "
+               printf("check_ptrace : child exited with exitcode %d, while "
                      "expecting %d; status 0x%x", exit_with,
                      exitcode, status);
                if (mustpanic)
                        panic("\n");
                else
-                       printk("\n");
+                       printf("\n");
                ret = -1;
        }
 
@@ -183,7 +182,7 @@ static void __init check_sysemu(void)
        void *stack;
        int pid, n, status, count=0;
 
-       printk("Checking syscall emulation patch for ptrace...");
+       printf("Checking syscall emulation patch for ptrace...");
        sysemu_supported = 0;
        pid = start_ptraced_child(&stack);
 
@@ -207,10 +206,10 @@ static void __init check_sysemu(void)
                goto fail_stopped;
 
        sysemu_supported = 1;
-       printk("OK\n");
+       printf("OK\n");
        set_using_sysemu(!force_sysemu_disabled);
 
-       printk("Checking advanced syscall emulation patch for ptrace...");
+       printf("Checking advanced syscall emulation patch for ptrace...");
        pid = start_ptraced_child(&stack);
 
        if(ptrace(PTRACE_OLDSETOPTIONS, pid, 0,
@@ -246,7 +245,7 @@ static void __init check_sysemu(void)
                goto fail_stopped;
 
        sysemu_supported = 2;
-       printk("OK\n");
+       printf("OK\n");
 
        if ( !force_sysemu_disabled )
                set_using_sysemu(sysemu_supported);
@@ -255,7 +254,7 @@ static void __init check_sysemu(void)
 fail:
        stop_ptraced_child(pid, stack, 1, 0);
 fail_stopped:
-       printk("missing\n");
+       printf("missing\n");
 }
 
 static void __init check_ptrace(void)
@@ -263,7 +262,7 @@ static void __init check_ptrace(void)
        void *stack;
        int pid, syscall, n, status;
 
-       printk("Checking that ptrace can change system call numbers...");
+       printf("Checking that ptrace can change system call numbers...");
        pid = start_ptraced_child(&stack);
 
        if(ptrace(PTRACE_OLDSETOPTIONS, pid, 0, (void *)PTRACE_O_TRACESYSGOOD) < 0)
@@ -292,7 +291,7 @@ static void __init check_ptrace(void)
                }
        }
        stop_ptraced_child(pid, stack, 0, 1);
-       printk("OK\n");
+       printf("OK\n");
        check_sysemu();
 }
 
@@ -472,6 +471,8 @@ int can_do_skas(void)
 
 int have_devanon = 0;
 
+/* Runs on boot kernel stack - already safe to use printk. */
+
 void check_devanon(void)
 {
        int fd;