Hi tberghammer,
The test is XFAILed for Linux x86_64 and i386 because of bug #23659.
http://reviews.llvm.org/D10519
Files:
test/expression_command/expr-in-syscall/Makefile
test/expression_command/expr-in-syscall/TestExpressionInSyscall.py
test/expression_command/expr-in-syscall/main.c
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Index: test/expression_command/expr-in-syscall/Makefile
===================================================================
--- /dev/null
+++ test/expression_command/expr-in-syscall/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+C_SOURCES := main.c
+
+include $(LEVEL)/Makefile.rules
Index: test/expression_command/expr-in-syscall/TestExpressionInSyscall.py
===================================================================
--- /dev/null
+++ test/expression_command/expr-in-syscall/TestExpressionInSyscall.py
@@ -0,0 +1,89 @@
+"""Test that we are able to evaluate expressions when the inferior is blocked in a syscall"""
+
+import os
+import unittest2
+import lldb
+from lldbtest import *
+import lldbutil
+
+
+class ExprSyscallTestCase(TestBase):
+
+ mydir = TestBase.compute_mydir(__file__)
+
+ @skipUnlessDarwin
+ @dsym_test
+ def test_setpgid_with_dsym(self):
+ self.buildDsym()
+ self.expr_syscall()
+
+ @expectedFailureAll("llvm.org/pr23659", oslist=["linux"], archs=["i386", "x86_64"])
+ @dwarf_test
+ def test_setpgid_with_dwarf(self):
+ self.buildDwarf()
+ self.expr_syscall()
+
+ def expr_syscall(self):
+ exe = os.path.join(os.getcwd(), 'a.out')
+
+ # Create a target by the debugger.
+ target = self.dbg.CreateTarget(exe)
+ self.assertTrue(target, VALID_TARGET)
+
+ listener = lldb.SBListener("my listener")
+
+ # launch the inferior and don't wait for it to stop
+ self.dbg.SetAsync(True)
+ error = lldb.SBError()
+ process = target.Launch (listener,
+ None, # argv
+ None, # envp
+ None, # stdin_path
+ None, # stdout_path
+ None, # stderr_path
+ None, # working directory
+ 0, # launch flags
+ False, # Stop at entry
+ error) # error
+
+ self.assertTrue(process and process.IsValid(), PROCESS_IS_VALID)
+
+ event = lldb.SBEvent()
+
+ # give the child enough time to reach the syscall
+ # clearing out all the pending events
+ while listener.WaitForEvent(2, event):
+ True
+
+ # now the process should be running (blocked in the syscall)
+ self.assertEqual(process.GetState(), lldb.eStateRunning, "Process is running")
+
+ # send the process a signal
+ process.SendAsyncInterrupt()
+ while listener.WaitForEvent(1, event):
+ True
+
+ # as a result the process should stop
+ # in all likelihood we have stopped in the middle of the sleep() syscall
+ self.assertEqual(process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
+ thread = process.GetSelectedThread()
+
+ # try evaluating a couple of expressions in this state
+ self.expect("expr release_flag = 1", substrs = [" = 1"])
+ self.expect("print (int)getpid()", substrs = [str(process.GetProcessID())])
+
+ # and run the process to completion
+ process.Continue()
+
+ # process all events
+ while listener.WaitForEvent(1, event):
+ True
+
+ self.assertEqual(process.GetState(), lldb.eStateExited)
+ self.assertEqual(process.GetExitStatus(), 0)
+
+if __name__ == '__main__':
+ import atexit
+ lldb.SBDebugger.Initialize()
+ atexit.register(lambda: lldb.SBDebugger.Terminate())
+ unittest2.main()
Index: test/expression_command/expr-in-syscall/main.c
===================================================================
--- /dev/null
+++ test/expression_command/expr-in-syscall/main.c
@@ -0,0 +1,11 @@
+#include <unistd.h>
+
+volatile int release_flag = 0;
+
+int main(int argc, char const *argv[])
+{
+ while (! release_flag) // Wait for debugger to attach
+ sleep(3);
+
+ return 0;
+}
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