Refactor Unix signals.

Summary:
- Consolidate Unix signals selection in UnixSignals.
- Make Unix signals available from platform.
- Add jSignalsInfo packet to retrieve Unix signals from remote platform.
- Get a copy of the platform signal for each remote process.
- Update SB API for signals.
- Update signal utility in test suite.

Reviewers: ovyalov, clayborg

Subscribers: chaoren, jingham, labath, emaste, tberghammer, lldb-commits

Differential Revision: http://reviews.llvm.org/D11094

llvm-svn: 242101

1 files changed, 6 insertions, 14 deletions

diff --git a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
index ae25fb4b4f1..372ac789d6a 100644
--- a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
+++ b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
@@ -43,7 +43,6 @@
 #include "lldb/Utility/StringExtractor.h"
 
 #include "Plugins/Process/POSIX/ProcessPOSIXLog.h"
-#include "Plugins/Process/Utility/LinuxSignals.h"
 #include "NativeThreadLinux.h"
 #include "ProcFileReader.h"
 #include "Procfs.h"
@@ -113,13 +112,6 @@ static bool ProcessVmReadvSupported()
 
 namespace
 {
-    const UnixSignals&
-    GetUnixSignals ()
-    {
-        static process_linux::LinuxSignals signals;
-        return signals;
-    }
-
     Error
     ResolveProcessArchitecture (lldb::pid_t pid, Platform &platform, ArchSpec &arch)
     {
@@ -1987,7 +1979,7 @@ NativeProcessLinux::MonitorSignal(const siginfo_t *info, lldb::pid_t pid, bool e
         if (log)
             log->Printf ("NativeProcessLinux::%s() received signal %s (%d) with code %s, (siginfo pid = %d (%s), waitpid pid = %" PRIu64 ")",
                             __FUNCTION__,
-                            GetUnixSignals ().GetSignalAsCString (signo),
+                            Host::GetSignalAsCString(signo),
                             signo,
                             (info->si_code == SI_TKILL ? "SI_TKILL" : "SI_USER"),
                             info->si_pid,
@@ -2062,7 +2054,7 @@ NativeProcessLinux::MonitorSignal(const siginfo_t *info, lldb::pid_t pid, bool e
                     // Retrieve the signal name if the thread was stopped by a signal.
                     int stop_signo = 0;
                     const bool stopped_by_signal = linux_thread_sp->IsStopped (&stop_signo);
-                    const char *signal_name = stopped_by_signal ? GetUnixSignals ().GetSignalAsCString (stop_signo) : "<not stopped by signal>";
+                    const char *signal_name = stopped_by_signal ? Host::GetSignalAsCString(stop_signo) : "<not stopped by signal>";
                     if (!signal_name)
                         signal_name = "<no-signal-name>";
 
@@ -2083,7 +2075,7 @@ NativeProcessLinux::MonitorSignal(const siginfo_t *info, lldb::pid_t pid, bool e
     }
 
     if (log)
-        log->Printf ("NativeProcessLinux::%s() received signal %s", __FUNCTION__, GetUnixSignals ().GetSignalAsCString (signo));
+        log->Printf ("NativeProcessLinux::%s() received signal %s", __FUNCTION__, Host::GetSignalAsCString(signo));
 
     // This thread is stopped.
     ThreadDidStop (pid, false);
@@ -2428,8 +2420,8 @@ NativeProcessLinux::Signal (int signo)
 
     Log *log (GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS));
     if (log)
-        log->Printf ("NativeProcessLinux::%s: sending signal %d (%s) to pid %" PRIu64, 
-                __FUNCTION__, signo,  GetUnixSignals ().GetSignalAsCString (signo), GetID ());
+        log->Printf ("NativeProcessLinux::%s: sending signal %d (%s) to pid %" PRIu64,
+                __FUNCTION__, signo, Host::GetSignalAsCString(signo), GetID());
 
     if (kill(GetID(), signo))
         error.SetErrorToErrno();
@@ -3176,7 +3168,7 @@ NativeProcessLinux::Resume (lldb::tid_t tid, uint32_t signo)
 
     if (log)
         log->Printf ("NativeProcessLinux::%s() resuming thread = %"  PRIu64 " with signal %s", __FUNCTION__, tid,
-                                 GetUnixSignals().GetSignalAsCString (signo));
+                                 Host::GetSignalAsCString(signo));