[lldb-dev] Ignoring Signals via the API
Russell Harmon
russ at eatnumber1.com
Wed Jun 26 02:50:46 PDT 2013
Ok, I've attached a patch and inlined it below. Is git diff format ok?
I'll probably need to do some more work on it as I need to be able to set
the disposition before I even attach to a process. Any thoughts on how that
can be accomplished?
--
Russell Harmon
>From 704f23ec6d1aedfd66b6cf066215c4b95321a7fe Mon Sep 17 00:00:00 2001
From: Russell Harmon <russ at eatnumber1.com>
Date: Tue, 25 Jun 2013 01:02:31 -0700
Subject: [PATCH] Add the ability to control the signal disposition via the
API.
---
include/lldb/API/LLDB.h | 1 +
include/lldb/API/SBDefines.h | 1 +
include/lldb/API/SBProcess.h | 3 +
include/lldb/API/SBUnixSignals.h | 81 +++++++++++++++++++
include/lldb/lldb-defines.h | 4 +
include/lldb/lldb-forward.h | 1 +
scripts/Python/build-swig-Python.sh | 6 +-
scripts/Python/interface/SBProcess.i | 3 +
scripts/Python/interface/SBUnixSignals.i | 73 +++++++++++++++++
scripts/lldb.swig | 5 ++
source/API/CMakeLists.txt | 1 +
source/API/SBProcess.cpp | 14 ++++
source/API/SBUnixSignals.cpp | 130
+++++++++++++++++++++++++++++++
13 files changed, 321 insertions(+), 2 deletions(-)
create mode 100644 include/lldb/API/SBUnixSignals.h
create mode 100644 scripts/Python/interface/SBUnixSignals.i
create mode 100644 source/API/SBUnixSignals.cpp
diff --git a/include/lldb/API/LLDB.h b/include/lldb/API/LLDB.h
index 93bc3bc..4db60b0 100644
--- a/include/lldb/API/LLDB.h
+++ b/include/lldb/API/LLDB.h
@@ -50,5 +50,6 @@
#include "lldb/API/SBType.h"
#include "lldb/API/SBValue.h"
#include "lldb/API/SBValueList.h"
+#include "lldb/API/SBUnixSignals.h"
#endif // LLDB_LLDB_h_
diff --git a/include/lldb/API/SBDefines.h b/include/lldb/API/SBDefines.h
index 2388c36..02742d3 100644
--- a/include/lldb/API/SBDefines.h
+++ b/include/lldb/API/SBDefines.h
@@ -76,6 +76,7 @@ class SBTypeList;
class SBValue;
class SBValueList;
class SBWatchpoint;
+class SBUnixSignals;
}
diff --git a/include/lldb/API/SBProcess.h b/include/lldb/API/SBProcess.h
index 784f362..a1e7353 100644
--- a/include/lldb/API/SBProcess.h
+++ b/include/lldb/API/SBProcess.h
@@ -211,6 +211,9 @@ public:
lldb::SBError
Signal (int signal);
+ lldb::SBUnixSignals
+ GetUnixSignals();
+
void
SendAsyncInterrupt();
diff --git a/include/lldb/API/SBUnixSignals.h
b/include/lldb/API/SBUnixSignals.h
new file mode 100644
index 0000000..e738bb8
--- /dev/null
+++ b/include/lldb/API/SBUnixSignals.h
@@ -0,0 +1,81 @@
+//===-- SBUnixSignals.h -----------------------------------------------*-
C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_SBUnixSignals_h_
+#define LLDB_SBUnixSignals_h_
+
+#include "lldb/API/SBDefines.h"
+
+namespace lldb {
+
+class SBUnixSignals {
+public:
+ SBUnixSignals ();
+
+ SBUnixSignals (const lldb::SBUnixSignals &rhs);
+
+ ~SBUnixSignals();
+
+ const SBUnixSignals &
+ operator =(const lldb::SBUnixSignals &rhs);
+
+ void
+ Clear ();
+
+ bool
+ IsValid () const;
+
+ int32_t
+ GetSignalNumberFromName (const char *name) const;
+
+ bool
+ GetShouldSuppress (int32_t signo) const;
+
+ bool
+ SetShouldSuppress (int32_t signo,
+ bool value);
+
+ bool
+ GetShouldStop (int32_t signo) const;
+
+ bool
+ SetShouldStop (int32_t signo,
+ bool value);
+
+ bool
+ GetShouldNotify (int32_t signo) const;
+
+ bool
+ SetShouldNotify (int32_t signo, bool value);
+
+ int32_t
+ GetFirstSignalNumber () const;
+
+ int32_t
+ GetNextSignalNumber (int32_t current_signal) const;
+
+protected:
+ friend class SBProcess;
+
+ SBUnixSignals (lldb_private::UnixSignals *unix_signals_ptr);
+
+ lldb_private::UnixSignals *
+ GetPtr() const;
+
+ void
+ SetPtr (lldb_private::UnixSignals *unix_signals_ptr);
+
+private:
+ lldb_private::UnixSignals *m_opaque_ptr;
+};
+
+
+} // namespace lldb
+
+#endif // LLDB_SBUnixSignals_h_
diff --git a/include/lldb/lldb-defines.h b/include/lldb/lldb-defines.h
index 3318aa1..a42ba3c 100644
--- a/include/lldb/lldb-defines.h
+++ b/include/lldb/lldb-defines.h
@@ -12,6 +12,10 @@
#include "lldb/lldb-types.h"
+#if !defined(INT32_MAX)
+ #define INT32_MAX 2147483647
+#endif
+
#if !defined(UINT32_MAX)
#define UINT32_MAX 4294967295U
#endif
diff --git a/include/lldb/lldb-forward.h b/include/lldb/lldb-forward.h
index 84af8b6..077d537 100644
--- a/include/lldb/lldb-forward.h
+++ b/include/lldb/lldb-forward.h
@@ -232,6 +232,7 @@ class TypeListImpl;
class TypeMemberImpl;
class TypeNameSpecifierImpl;
class UUID;
+class UnixSignals;
class Unwind;
class UnwindAssembly;
class UnwindPlan;
diff --git a/scripts/Python/build-swig-Python.sh
b/scripts/Python/build-swig-Python.sh
index 96c4b2b..4a111da 100755
--- a/scripts/Python/build-swig-Python.sh
+++ b/scripts/Python/build-swig-Python.sh
@@ -123,7 +123,8 @@ HEADER_FILES="${SRC_ROOT}/include/lldb/lldb.h"\
" ${SRC_ROOT}/include/lldb/API/SBTypeSynthetic.h"\
" ${SRC_ROOT}/include/lldb/API/SBValue.h"\
" ${SRC_ROOT}/include/lldb/API/SBValueList.h"\
-" ${SRC_ROOT}/include/lldb/API/SBWatchpoint.h"
+" ${SRC_ROOT}/include/lldb/API/SBWatchpoint.h"\
+" ${SRC_ROOT}/include/lldb/API/SBUnixSignals.h"
INTERFACE_FILES="${SRC_ROOT}/scripts/Python/interface/SBAddress.i"\
" ${SRC_ROOT}/scripts/Python/interface/SBBlock.i"\
@@ -167,7 +168,8 @@
INTERFACE_FILES="${SRC_ROOT}/scripts/Python/interface/SBAddress.i"\
" ${SRC_ROOT}/scripts/Python/interface/SBTypeSynthetic.i"\
" ${SRC_ROOT}/scripts/Python/interface/SBValue.i"\
" ${SRC_ROOT}/scripts/Python/interface/SBValueList.i"\
-" ${SRC_ROOT}/scripts/Python/interface/SBWatchpoint.i"
+" ${SRC_ROOT}/scripts/Python/interface/SBWatchpoint.i"\
+" ${SRC_ROOT}/scripts/Python/interface/SBUnixSignals.i"
if [ $Debug -eq 1 ]
then
diff --git a/scripts/Python/interface/SBProcess.i
b/scripts/Python/interface/SBProcess.i
index 6f22d9a..7a03ac7 100644
--- a/scripts/Python/interface/SBProcess.i
+++ b/scripts/Python/interface/SBProcess.i
@@ -231,6 +231,9 @@ public:
lldb::SBError
Signal (int signal);
+ lldb::SBUnixSignals
+ GetUnixSignals();
+
%feature("docstring", "
Returns a stop id that will increase every time the process executes.
If
include_expression_stops is true, then stops caused by expression
evaluation
diff --git a/scripts/Python/interface/SBUnixSignals.i
b/scripts/Python/interface/SBUnixSignals.i
new file mode 100644
index 0000000..9972d1d
--- /dev/null
+++ b/scripts/Python/interface/SBUnixSignals.i
@@ -0,0 +1,73 @@
+//===-- SWIG Interface for SBProcess ----------------------------*- C++
-*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+namespace lldb {
+
+%feature("docstring",
+"Allows you to manipulate LLDB's signal disposition"
+) SBUnixSignals;
+class SBUnixSignals
+{
+public:
+ SBUnixSignals ();
+
+ SBUnixSignals (const lldb::SBUnixSignals &rhs);
+
+ ~SBUnixSignals();
+
+ void
+ Clear ();
+
+ bool
+ IsValid () const;
+
+ int32_t
+ GetSignalNumberFromName (const char *name) const;
+
+ bool
+ GetShouldSuppress (int32_t signo) const;
+
+ bool
+ SetShouldSuppress (int32_t signo,
+ bool value);
+
+ bool
+ GetShouldStop (int32_t signo) const;
+
+ bool
+ SetShouldStop (int32_t signo,
+ bool value);
+
+ bool
+ GetShouldNotify (int32_t signo) const;
+
+ bool
+ SetShouldNotify (int32_t signo, bool value);
+
+ int32_t
+ GetFirstSignalNumber () const;
+
+ int32_t
+ GetNextSignalNumber (int32_t current_signal) const;
+
+ %pythoncode %{
+ def get_unix_signals_list(self):
+ signals = []
+ sig = self.GetFirstSignalNumber()
+ while sig != LLDB_INVALID_SIGNAL_NUMBER:
+ signals.append(sig)
+ sig = self.GetNextSignalNumber(sig)
+ return signals
+
+ __swig_getmethods__["signals"] = get_unix_signals_list
+ if _newclass: threads = property(get_unix_signals_list, None,
doc='''A read only property that returns a list() of valid signal numbers
for this platform.''')
+ %}
+};
+
+} // namespace lldb
diff --git a/scripts/lldb.swig b/scripts/lldb.swig
index b813f51..0a9a8ca 100644
--- a/scripts/lldb.swig
+++ b/scripts/lldb.swig
@@ -98,6 +98,7 @@ import os
#include "lldb/API/SBValue.h"
#include "lldb/API/SBValueList.h"
#include "lldb/API/SBWatchpoint.h"
+#include "lldb/API/SBUnixSignals.h"
#include "../scripts/Python/python-swigsafecast.swig"
@@ -105,6 +106,9 @@ import os
/* Various liblldb typedefs that SWIG needs to know about. */
#define __extension__ /* Undefine GCC keyword to make Swig happy when
processing glibc's stdint.h. */
+/* The ISO C99 standard specifies that in C++ implementations limit macros
such
+ as INT32_MAX should only be defined if __STDC_LIMIT_MACROS is. */
+#define __STDC_LIMIT_MACROS
%include "stdint.i"
%include "lldb/lldb-defines.h"
%include "lldb/lldb-enumerations.h"
@@ -161,6 +165,7 @@ import os
%include "./Python/interface/SBValue.i"
%include "./Python/interface/SBValueList.i"
%include "./Python/interface/SBWatchpoint.i"
+%include "./Python/interface/SBUnixSignals.i"
%include "./Python/python-extensions.swig"
diff --git a/source/API/CMakeLists.txt b/source/API/CMakeLists.txt
index 3580b74..937a4c2 100644
--- a/source/API/CMakeLists.txt
+++ b/source/API/CMakeLists.txt
@@ -47,4 +47,5 @@ add_lldb_library(lldbAPI
SBValue.cpp
SBValueList.cpp
SBWatchpoint.cpp
+ SBUnixSignals.cpp
)
diff --git a/source/API/SBProcess.cpp b/source/API/SBProcess.cpp
index d41ad61..3215fe5 100644
--- a/source/API/SBProcess.cpp
+++ b/source/API/SBProcess.cpp
@@ -36,6 +36,7 @@
#include "lldb/API/SBThread.h"
#include "lldb/API/SBStream.h"
#include "lldb/API/SBStringList.h"
+#include "lldb/API/SBUnixSignals.h"
using namespace lldb;
using namespace lldb_private;
@@ -833,6 +834,19 @@ SBProcess::Signal (int signo)
return sb_error;
}
+SBUnixSignals
+SBProcess::GetUnixSignals()
+{
+ SBUnixSignals sb_unix_signals;
+ ProcessSP process_sp(GetSP());
+ if (process_sp)
+ {
+ sb_unix_signals.SetPtr(&process_sp->GetUnixSignals());
+ }
+
+ return sb_unix_signals;
+}
+
void
SBProcess::SendAsyncInterrupt ()
{
diff --git a/source/API/SBUnixSignals.cpp b/source/API/SBUnixSignals.cpp
new file mode 100644
index 0000000..309a2fb
--- /dev/null
+++ b/source/API/SBUnixSignals.cpp
@@ -0,0 +1,130 @@
+//===-- SBUnixSignals.cpp -------------------------------------------*-
C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/lldb-defines.h"
+#include "lldb/Target/UnixSignals.h"
+
+#include "lldb/API/SBUnixSignals.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+SBUnixSignals::SBUnixSignals () :
+ m_opaque_ptr(NULL)
+{
+}
+
+SBUnixSignals::SBUnixSignals (const SBUnixSignals &rhs) :
+ m_opaque_ptr(rhs.m_opaque_ptr)
+{
+}
+
+SBUnixSignals::SBUnixSignals (UnixSignals *unix_signals_ptr) :
+ m_opaque_ptr(unix_signals_ptr)
+{
+}
+
+const SBUnixSignals&
+SBUnixSignals::operator = (const SBUnixSignals& rhs)
+{
+ if (this != &rhs)
+ m_opaque_ptr = rhs.m_opaque_ptr;
+ return *this;
+}
+
+SBUnixSignals::~SBUnixSignals()
+{
+}
+
+UnixSignals *
+SBUnixSignals::GetPtr() const
+{
+ return m_opaque_ptr;
+}
+
+void
+SBUnixSignals::SetPtr (UnixSignals *unix_signals_ptr)
+{
+ m_opaque_ptr = unix_signals_ptr;
+}
+
+void
+SBUnixSignals::Clear ()
+{
+ m_opaque_ptr = NULL;
+}
+
+bool
+SBUnixSignals::IsValid() const
+{
+ return m_opaque_ptr != NULL;
+}
+
+int32_t
+SBUnixSignals::GetSignalNumberFromName (const char *name) const
+{
+ if (m_opaque_ptr) return m_opaque_ptr->GetSignalNumberFromName(name);
+ return -1;
+}
+
+bool
+SBUnixSignals::GetShouldSuppress (int32_t signo) const
+{
+ if (m_opaque_ptr) return m_opaque_ptr->GetShouldSuppress(signo);
+ return false;
+}
+
+bool
+SBUnixSignals::SetShouldSuppress (int32_t signo, bool value)
+{
+ if (m_opaque_ptr) return m_opaque_ptr->SetShouldSuppress(signo, value);
+ return false;
+}
+
+bool
+SBUnixSignals::GetShouldStop (int32_t signo) const
+{
+ if (m_opaque_ptr) return m_opaque_ptr->GetShouldStop(signo);
+ return false;
+}
+
+bool
+SBUnixSignals::SetShouldStop (int32_t signo, bool value)
+{
+ if (m_opaque_ptr) return m_opaque_ptr->SetShouldStop(signo, value);
+ return false;
+}
+
+bool
+SBUnixSignals::GetShouldNotify (int32_t signo) const
+{
+ if (m_opaque_ptr) return m_opaque_ptr->GetShouldNotify(signo);
+ return false;
+}
+
+bool
+SBUnixSignals::SetShouldNotify (int32_t signo, bool value)
+{
+ if (m_opaque_ptr) return m_opaque_ptr->SetShouldNotify(signo, value);
+ return false;
+}
+
+int32_t
+SBUnixSignals::GetFirstSignalNumber () const
+{
+ if (m_opaque_ptr) return m_opaque_ptr->GetFirstSignalNumber();
+ return LLDB_INVALID_SIGNAL_NUMBER;
+}
+
+int32_t
+SBUnixSignals::GetNextSignalNumber (int32_t current_signal) const
+{
+ if (m_opaque_ptr) return
m_opaque_ptr->GetNextSignalNumber(current_signal);
+ return LLDB_INVALID_SIGNAL_NUMBER;
+}
--
1.8.1.3
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