[Lldb-commits] [lldb] r140654 - in /lldb/trunk/test/python_api/module_section: ./ Makefile TestModuleAndSection.py main.cpp
Johnny Chen
johnny.chen at apple.com
Tue Sep 27 16:15:58 PDT 2011
Author: johnny
Date: Tue Sep 27 18:15:58 2011
New Revision: 140654
URL: http://llvm.org/viewvc/llvm-project?rev=140654&view=rev
Log:
Add a simple test TestModuleAndSection.py to exercise some module/section-related APIs.
In particular, it iterates through the executable module's SBSections, looking for the
'__TEXT' section and further iterates on its subsections (of SBSection type, too).
Added:
lldb/trunk/test/python_api/module_section/
lldb/trunk/test/python_api/module_section/Makefile
lldb/trunk/test/python_api/module_section/TestModuleAndSection.py
lldb/trunk/test/python_api/module_section/main.cpp
Added: lldb/trunk/test/python_api/module_section/Makefile
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/python_api/module_section/Makefile?rev=140654&view=auto
==============================================================================
--- lldb/trunk/test/python_api/module_section/Makefile (added)
+++ lldb/trunk/test/python_api/module_section/Makefile Tue Sep 27 18:15:58 2011
@@ -0,0 +1,6 @@
+LEVEL = ../../make
+
+CXX_SOURCES := main.cpp
+MAKE_DSYM :=NO
+
+include $(LEVEL)/Makefile.rules
Added: lldb/trunk/test/python_api/module_section/TestModuleAndSection.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/python_api/module_section/TestModuleAndSection.py?rev=140654&view=auto
==============================================================================
--- lldb/trunk/test/python_api/module_section/TestModuleAndSection.py (added)
+++ lldb/trunk/test/python_api/module_section/TestModuleAndSection.py Tue Sep 27 18:15:58 2011
@@ -0,0 +1,54 @@
+"""
+Test some SBModule and SBSection APIs.
+"""
+
+import os, time
+import re
+import unittest2
+import lldb
+from lldbtest import *
+
+class ModuleAndSectionAPIsTestCase(TestBase):
+
+ mydir = os.path.join("python_api", "module_section")
+
+ @python_api_test
+ def test_module_and_section(self):
+ """Test module and section APIs."""
+ self.buildDefault()
+ self.module_and_section()
+
+ def module_and_section(self):
+ exe = os.path.join(os.getcwd(), "a.out")
+
+ target = self.dbg.CreateTarget(exe)
+ self.assertTrue(target, VALID_TARGET)
+ self.assertTrue(target.GetNumModules() > 0)
+
+ # Hide stdout if not running with '-t' option.
+ if not self.TraceOn():
+ self.HideStdout()
+
+ print "Number of modules for the target: %d" % target.GetNumModules()
+ for module in target.module_iter():
+ print module
+
+ # Get the executable module at index 0.
+ exe_module = target.GetModuleAtIndex(0)
+
+ print "Exe module: %s" % repr(exe_module)
+ print "Number of sections: %d" % exe_module.GetNumSections()
+ INDENT = ' ' * 4
+ for sec in exe_module.section_iter():
+ print sec
+ if sec.GetName() == "__TEXT":
+ print INDENT + "Number of subsections: %d" % sec.GetNumSubSections()
+ for subsec in sec:
+ print INDENT + repr(subsec)
+
+
+if __name__ == '__main__':
+ import atexit
+ lldb.SBDebugger.Initialize()
+ atexit.register(lambda: lldb.SBDebugger.Terminate())
+ unittest2.main()
Added: lldb/trunk/test/python_api/module_section/main.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/python_api/module_section/main.cpp?rev=140654&view=auto
==============================================================================
--- lldb/trunk/test/python_api/module_section/main.cpp (added)
+++ lldb/trunk/test/python_api/module_section/main.cpp Tue Sep 27 18:15:58 2011
@@ -0,0 +1,128 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C includes
+#include <pthread.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+pthread_t g_thread_1 = NULL;
+pthread_t g_thread_2 = NULL;
+pthread_t g_thread_3 = NULL;
+
+typedef enum {
+ eGet,
+ eAssign,
+ eClearBits
+} MaskAction;
+
+uint32_t mask_access (MaskAction action, uint32_t mask = 0);
+
+uint32_t
+mask_access (MaskAction action, uint32_t mask)
+{
+ static pthread_mutex_t g_mask_mutex = PTHREAD_MUTEX_INITIALIZER;
+ static uint32_t g_mask = 0;
+ ::pthread_mutex_lock (&g_mask_mutex);
+ switch (action)
+ {
+ case eGet:
+ break;
+
+ case eAssign:
+ g_mask |= mask;
+ break;
+
+ case eClearBits:
+ g_mask &= ~mask;
+ break;
+ }
+ uint32_t new_mask = g_mask;
+ ::pthread_mutex_unlock (&g_mask_mutex);
+ return new_mask;
+}
+
+void *
+thread_func (void *arg)
+{
+ uint32_t thread_index = *((uint32_t *)arg);
+ uint32_t thread_mask = (1u << (thread_index));
+ printf ("%s (thread index = %u) startng...\n", __FUNCTION__, thread_index);
+
+ while (mask_access(eGet) & thread_mask)
+ {
+ // random micro second sleep from zero to 3 seconds
+ int usec = ::rand() % 3000000;
+ printf ("%s (thread = %u) doing a usleep (%d)...\n", __FUNCTION__, thread_index, usec);
+ ::usleep (usec);
+ printf ("%s (thread = %u) after usleep ...\n", __FUNCTION__, thread_index); // Set break point at this line.
+ }
+ printf ("%s (thread index = %u) exiting...\n", __FUNCTION__, thread_index);
+ return NULL;
+}
+
+
+int main (int argc, char const *argv[])
+{
+ int err;
+ void *thread_result = NULL;
+ uint32_t thread_index_1 = 1;
+ uint32_t thread_index_2 = 2;
+ uint32_t thread_index_3 = 3;
+ uint32_t thread_mask_1 = (1u << thread_index_1);
+ uint32_t thread_mask_2 = (1u << thread_index_2);
+ uint32_t thread_mask_3 = (1u << thread_index_3);
+
+ // Make a mask that will keep all threads alive
+ mask_access (eAssign, thread_mask_1 | thread_mask_2 | thread_mask_3); // And that line.
+
+ // Create 3 threads
+ err = ::pthread_create (&g_thread_1, NULL, thread_func, &thread_index_1);
+ err = ::pthread_create (&g_thread_2, NULL, thread_func, &thread_index_2);
+ err = ::pthread_create (&g_thread_3, NULL, thread_func, &thread_index_3);
+
+ char line[64];
+ while (mask_access(eGet) != 0)
+ {
+ printf ("Enter thread index to kill or ENTER for all:\n");
+ fflush (stdout);
+ // Kill threads by index, or ENTER for all threads
+
+ if (fgets (line, sizeof(line), stdin))
+ {
+ if (line[0] == '\n' || line[0] == '\r' || line[0] == '\0')
+ {
+ printf ("Exiting all threads...\n");
+ break;
+ }
+ int32_t index = strtoul (line, NULL, 0);
+ switch (index)
+ {
+ case 1: mask_access (eClearBits, thread_mask_1); break;
+ case 2: mask_access (eClearBits, thread_mask_2); break;
+ case 3: mask_access (eClearBits, thread_mask_3); break;
+ }
+ continue;
+ }
+
+ break;
+ }
+
+ // Clear all thread bits to they all exit
+ mask_access (eClearBits, UINT32_MAX);
+
+ // Join all of our threads
+ err = ::pthread_join (g_thread_1, &thread_result);
+ err = ::pthread_join (g_thread_2, &thread_result);
+ err = ::pthread_join (g_thread_3, &thread_result);
+
+ return 0;
+}
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