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| author | Hafiz Abid Qadeer <hafiz_abid@mentor.com> | 2015-02-03 11:20:00 +0000 |
|---|---|---|
| committer | Hafiz Abid Qadeer <hafiz_abid@mentor.com> | 2015-02-03 11:20:00 +0000 |
| commit | 9a0d572750e17a6791b87f2e0c186dd743066a8e (patch) | |
| tree | a677dd9aa17b65a7c36d6f44227d3a69320a2b3b | |
| parent | 6b4499a393ac29334a0897338bb33bee9f78cd00 (diff) | |
| download | bcm5719-llvm-9a0d572750e17a6791b87f2e0c186dd743066a8e.tar.gz bcm5719-llvm-9a0d572750e17a6791b87f2e0c186dd743066a8e.zip | |
Restore the signal handler for Windows as it is not presistent there.
On windows, signal handler is reset to default once a signal is received.
This causes doing ctrl-c twice on console (or pressing suspend button twice
in eclipse ide which uses SIGINT to stop the debuggee) to crash lldb-mi on
windows. Although there is very tiny window (after signal handler is called
and before we restore the handler) where default handler will be in place.
But this is hardly a problem in practice as IDEs generally disable their suspend
button once it has been presses.
llvm-svn: 227964
| -rw-r--r-- | lldb/tools/lldb-mi/MIDriverMain.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lldb/tools/lldb-mi/MIDriverMain.cpp b/lldb/tools/lldb-mi/MIDriverMain.cpp index 526cb0c57e6..5557799d368 100644 --- a/lldb/tools/lldb-mi/MIDriverMain.cpp +++ b/lldb/tools/lldb-mi/MIDriverMain.cpp @@ -81,6 +81,9 @@ void sigwinch_handler(int vSigno) { +#ifdef _WIN32 // Restore handler as it is not persistent on Windows + signal(SIGWINCH, sigwinch_handler); +#endif MIunused(vSigno); struct winsize window_size; @@ -111,6 +114,9 @@ sigwinch_handler(int vSigno) void sigint_handler(int vSigno) { +#ifdef _WIN32 // Restore handler as it is not persistent on Windows + signal(SIGINT, sigint_handler); +#endif static bool g_interrupt_sent = false; CMIDriverMgr &rDriverMgr = CMIDriverMgr::Instance(); lldb::SBDebugger *pDebugger = rDriverMgr.DriverGetTheDebugger(); @@ -147,6 +153,9 @@ sigint_handler(int vSigno) void sigtstp_handler(int vSigno) { +#ifdef _WIN32 // Restore handler as it is not persistent on Windows + signal(SIGTSTP, sigtstp_handler); +#endif CMIDriverMgr &rDriverMgr = CMIDriverMgr::Instance(); lldb::SBDebugger *pDebugger = rDriverMgr.DriverGetTheDebugger(); if (pDebugger != nullptr) @@ -175,6 +184,9 @@ sigtstp_handler(int vSigno) void sigcont_handler(int vSigno) { +#ifdef _WIN32 // Restore handler as it is not persistent on Windows + signal(SIGCONT, sigcont_handler); +#endif CMIDriverMgr &rDriverMgr = CMIDriverMgr::Instance(); lldb::SBDebugger *pDebugger = rDriverMgr.DriverGetTheDebugger(); if (pDebugger != nullptr) |
