jacdavis created this revision.
jacdavis added reviewers: lldb-commits, abidh.
-thread-info in lldbmi does not conform to protocol. Should end with current
thread id as described here:
https://sourceware.org/gdb/onlinedocs/gdb/GDB_002fMI-Thread-Commands.html#GDB_002fMI-Thread-Commands
When printing all threads, the current thread id should be printed afterwards.
Example:
-thread-info
^done,threads=[
{id="2",target-id="Thread 0xb7e14b90 (LWP 21257)",
frame={level="0",addr="0xffffe410",func="__kernel_vsyscall",
args=[]},state="running"},
{id="1",target-id="Thread 0xb7e156b0 (LWP 21254)",
frame={level="0",addr="0x0804891f",func="foo",
args=[{name="i",value="10"}],
file="/tmp/a.c",fullname="/tmp/a.c",line="158"},
state="running"}],
current-thread-id="1"
(gdb)
http://reviews.llvm.org/D18880
Files:
packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/Makefile
packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/TestMiThreadInfo.py
packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/test_threadinfo.cpp
tools/lldb-mi/MICmdCmdThread.cpp
tools/lldb-mi/MICmdCmdThread.h
Index: tools/lldb-mi/MICmdCmdThread.h
===================================================================
--- tools/lldb-mi/MICmdCmdThread.h
+++ tools/lldb-mi/MICmdCmdThread.h
@@ -60,4 +60,8 @@
bool m_bThreadInvalid; // True = invalid, false = ok
VecMIValueTuple_t m_vecMIValueTuple;
const CMIUtilString m_constStrArgNamedThreadId;
+
+ // mi value of current-thread-id if multiple threads are requested
+ bool m_bHasCurrentThread;
+ CMICmnMIValue m_miValueCurrThreadId;
};
Index: tools/lldb-mi/MICmdCmdThread.cpp
===================================================================
--- tools/lldb-mi/MICmdCmdThread.cpp
+++ tools/lldb-mi/MICmdCmdThread.cpp
@@ -32,6 +32,7 @@
: m_bSingleThread(false)
, m_bThreadInvalid(true)
, m_constStrArgNamedThreadId("thread-id")
+ , m_bHasCurrentThread(false)
{
// Command factory matches this name with that received from the stdin stream
m_strMiCmd = "thread-info";
@@ -123,6 +124,15 @@
m_vecMIValueTuple.push_back(miTuple);
}
}
+
+ // -thread-info with multiple threads ends with the current thread id if any
+ if (thread.IsValid())
+ {
+ const CMIUtilString strId(CMIUtilString::Format("%d", thread.GetIndexID()));
+ CMICmnMIValueConst miValueCurrThreadId(strId);
+ m_miValueCurrThreadId = miValueCurrThreadId;
+ m_bHasCurrentThread = true;
+ }
return MIstatus::success;
}
@@ -179,7 +189,12 @@
++it;
}
- const CMICmnMIValueResult miValueResult("threads", miValueList);
+ CMICmnMIValueResult miValueResult("threads", miValueList);
+ if (m_bHasCurrentThread)
+ {
+ CMIUtilString strCurrThreadId = "current-thread-id";
+ miValueResult.Add(strCurrThreadId, m_miValueCurrThreadId);
+ }
const CMICmnMIResultRecord miRecordResult(m_cmdData.strMiCmdToken, CMICmnMIResultRecord::eResultClass_Done, miValueResult);
m_miResultRecord = miRecordResult;
Index: packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/test_threadinfo.cpp
===================================================================
--- packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/test_threadinfo.cpp
+++ packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/test_threadinfo.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+#include <cstdlib>
+#include <pthread.h>
+
+
+void* ThreadProc(void* arg)
+{
+ int i = 0;
+ i++;
+ return NULL;
+}
+
+int main()
+{
+ pthread_t thread;
+ pthread_create(&thread, NULL, ThreadProc, NULL);
+ pthread_join(thread, NULL);
+ return 0;
+}
Index: packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/TestMiThreadInfo.py
===================================================================
--- packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/TestMiThreadInfo.py
+++ packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/TestMiThreadInfo.py
@@ -0,0 +1,39 @@
+"""
+Test lldb-mi -thread-info command.
+"""
+
+from __future__ import print_function
+
+import lldbmi_testcase
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+class MiThreadInfoTestCase(lldbmi_testcase.MiTestCaseBase):
+
+ mydir = TestBase.compute_mydir(__file__)
+
+ @skipIfWindows # pthreads not supported on Windows
+ @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+ def test_lldbmi_thread_info(self):
+ """Test that -thread-info prints thread info and the current-thread-id"""
+
+ self.spawnLldbMi(args = None)
+
+ # Load executable
+ self.runCmd("-file-exec-and-symbols %s" % self.myexe)
+ self.expect("\^done")
+
+ self.runCmd("-break-insert ThreadProc")
+ self.expect("\^done")
+
+ # Run to the breakpoint
+ self.runCmd("-exec-run")
+ self.expect("\^running")
+ self.expect("\*stopped,reason=\"breakpoint-hit\"")
+
+ self.runCmd("-thread-info")
+ self.expect("\^done,threads=\[\{id=\"1\",(.*)\},\{id=\"2\",(.*)\],current-thread-id=\"2\"")
+
+ self.runCmd("-gdb-quit")
+
Index: packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/Makefile
===================================================================
--- packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/Makefile
+++ packages/Python/lldbsuite/test/tools/lldb-mi/threadinfo/Makefile
@@ -0,0 +1,7 @@
+LEVEL = ../../../make
+
+LDFLAGS=-pthread
+
+CXX_SOURCES := test_threadinfo.cpp
+
+include $(LEVEL)/Makefile.rules
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