linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / arch / um / kernel / tt / tracer.c

diff --git a/arch/um/kernel/tt/tracer.c b/arch/um/kernel/tt/tracer.c
index 9882342..71daae2 100644 (file)
--- a/arch/um/kernel/tt/tracer.c
+++ b/arch/um/kernel/tt/tracer.c
@@ -188,7 +188,10 @@ int tracer(int (*init_proc)(void *), void *sp)
        int status, pid = 0, sig = 0, cont_type, tracing = 0, op = 0;
        int proc_id = 0, n, err, old_tracing = 0, strace = 0;
        int local_using_sysemu = 0;
-
+#ifdef UML_CONFIG_SYSCALL_DEBUG
+       unsigned long eip = 0;
+       int last_index;
+#endif
        signal(SIGPIPE, SIG_IGN);
        setup_tracer_winch();
        tracing_pid = os_getpid();
@@ -279,6 +282,23 @@ int tracer(int (*init_proc)(void *), void *sp)
                else if(WIFSTOPPED(status)){
                        proc_id = pid_to_processor_id(pid);
                        sig = WSTOPSIG(status);
+#ifdef UML_CONFIG_SYSCALL_DEBUG
+                       if(signal_index[proc_id] == 1024){
+                               signal_index[proc_id] = 0;
+                               last_index = 1023;
+                       }
+                       else last_index = signal_index[proc_id] - 1;
+                       if(((sig == SIGPROF) || (sig == SIGVTALRM) ||
+                           (sig == SIGALRM)) &&
+                          (signal_record[proc_id][last_index].signal == sig)&&
+                          (signal_record[proc_id][last_index].pid == pid))
+                               signal_index[proc_id] = last_index;
+                       signal_record[proc_id][signal_index[proc_id]].pid = pid;
+                       gettimeofday(&signal_record[proc_id][signal_index[proc_id]].time, NULL);
+                       eip = ptrace(PTRACE_PEEKUSR, pid, PT_IP_OFFSET, 0);
+                       signal_record[proc_id][signal_index[proc_id]].addr = eip;
+                       signal_record[proc_id][signal_index[proc_id]++].signal = sig;
+#endif
                        if(proc_id == -1){
                                sleeping_process_signal(pid, sig);
                                continue;