1 files changed, 20 insertions, 6 deletions

diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 7baf90fda58b..42e3d1ed802c 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -8,7 +8,6 @@
 #include <unistd.h>
 #include <errno.h>
 #include <signal.h>
-#include <setjmp.h>
 #include <sched.h>
 #include "ptrace_user.h"
 #include <sys/wait.h>
@@ -156,11 +155,15 @@ extern int __syscall_stub_start;
 static int userspace_tramp(void *stack)
 {
         void *addr;
+        int err;
 
         ptrace(PTRACE_TRACEME, 0, 0, 0);
 
         init_new_thread_signals();
-        enable_timer();
+        err = set_interval(1);
+        if(err)
+                panic("userspace_tramp - setting timer failed, errno = %d\n",
+                      err);
 
         if(!proc_mm){
                 /* This has a pte, but it can't be mapped in with the usual
@@ -190,14 +193,25 @@ static int userspace_tramp(void *stack)
                 }
         }
         if(!ptrace_faultinfo && (stack != NULL)){
+                struct sigaction sa;
+
                 unsigned long v = UML_CONFIG_STUB_CODE +
                                   (unsigned long) stub_segv_handler -
                                   (unsigned long) &__syscall_stub_start;
 
                 set_sigstack((void *) UML_CONFIG_STUB_DATA, page_size());
-                set_handler(SIGSEGV, (void *) v, SA_ONSTACK,
-                            SIGIO, SIGWINCH, SIGALRM, SIGVTALRM,
-                            SIGUSR1, -1);
+                sigemptyset(&sa.sa_mask);
+                sigaddset(&sa.sa_mask, SIGIO);
+                sigaddset(&sa.sa_mask, SIGWINCH);
+                sigaddset(&sa.sa_mask, SIGALRM);
+                sigaddset(&sa.sa_mask, SIGVTALRM);
+                sigaddset(&sa.sa_mask, SIGUSR1);
+                sa.sa_flags = SA_ONSTACK;
+                sa.sa_handler = (void *) v;
+                sa.sa_restorer = NULL;
+                if(sigaction(SIGSEGV, &sa, NULL) < 0)
+                        panic("userspace_tramp - setting SIGSEGV handler "
+                              "failed - errno = %d\n", errno);
         }
 
         os_stop_process(os_getpid());
@@ -470,7 +484,7 @@ void thread_wait(void *sw, void *fb)
         *switch_buf = &buf;
         fork_buf = fb;
         if(UML_SETJMP(&buf) == 0)
-                siglongjmp(*fork_buf, INIT_JMP_REMOVE_SIGSTACK);
+                UML_LONGJMP(fork_buf, INIT_JMP_REMOVE_SIGSTACK);
 }
 
 void switch_threads(void *me, void *next)