diff options
Diffstat (limited to 'packages/Python/lldbsuite/test/functionalities/unwind/sigtramp')
3 files changed, 113 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/unwind/sigtramp/Makefile b/packages/Python/lldbsuite/test/functionalities/unwind/sigtramp/Makefile new file mode 100644 index 000000000000..b09a579159d4 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/unwind/sigtramp/Makefile @@ -0,0 +1,5 @@ +LEVEL = ../../../make + +C_SOURCES := main.c + +include $(LEVEL)/Makefile.rules diff --git a/packages/Python/lldbsuite/test/functionalities/unwind/sigtramp/TestSigtrampUnwind.py b/packages/Python/lldbsuite/test/functionalities/unwind/sigtramp/TestSigtrampUnwind.py new file mode 100644 index 000000000000..ddfb1122b6f1 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/unwind/sigtramp/TestSigtrampUnwind.py @@ -0,0 +1,81 @@ +""" +Test that we can backtrace correctly with 'sigtramp' functions on the stack +""" + +from __future__ import print_function + + + +import os, time +import lldb +from lldbsuite.test.lldbtest import * +import lldbsuite.test.lldbutil as lldbutil + +class SigtrampUnwind(TestBase): + mydir = TestBase.compute_mydir(__file__) + + # On different platforms the "_sigtramp" and "__kill" frames are likely to be different. + # This test could probably be adapted to run on linux/*bsd easily enough. + @skipUnlessDarwin + def test (self): + """Test that we can backtrace correctly with _sigtramp on the stack""" + self.build() + self.setTearDownCleanup() + + exe = os.path.join(os.getcwd(), "a.out") + target = self.dbg.CreateTarget(exe) + self.assertTrue(target, VALID_TARGET) + + + lldbutil.run_break_set_by_file_and_line (self, "main.c", line_number('main.c', '// Set breakpoint here'), num_expected_locations=1) + + process = target.LaunchSimple (None, None, self.get_process_working_directory()) + + if not process: + self.fail("SBTarget.Launch() failed") + + if process.GetState() != lldb.eStateStopped: + self.fail("Process should be in the 'stopped' state, " + "instead the actual state is: '%s'" % + lldbutil.state_type_to_str(process.GetState())) + + self.expect("pro handle -n false -p true -s false SIGUSR1", "Have lldb pass SIGUSR1 signals", + substrs = ["SIGUSR1", "true", "false", "false"]) + + lldbutil.run_break_set_by_symbol (self, "handler", num_expected_locations=1, module_name="a.out") + + self.runCmd("continue") + + thread = process.GetThreadAtIndex(0) + + found_handler = False + found_sigtramp = False + found_kill = False + found_main = False + + for f in thread.frames: + if f.GetFunctionName() == "handler": + found_handler = True + if f.GetFunctionName() == "_sigtramp": + found_sigtramp = True + if f.GetFunctionName() == "__kill": + found_kill = True + if f.GetFunctionName() == "main": + found_main = True + + if self.TraceOn(): + print("Backtrace once we're stopped:") + for f in thread.frames: + print(" %d %s" % (f.GetFrameID(), f.GetFunctionName())) + + if found_handler == False: + self.fail("Unable to find handler() in backtrace.") + + if found_sigtramp == False: + self.fail("Unable to find _sigtramp() in backtrace.") + + if found_kill == False: + self.fail("Unable to find kill() in backtrace.") + + if found_main == False: + self.fail("Unable to find main() in backtrace.") diff --git a/packages/Python/lldbsuite/test/functionalities/unwind/sigtramp/main.c b/packages/Python/lldbsuite/test/functionalities/unwind/sigtramp/main.c new file mode 100644 index 000000000000..aaa03e7aa843 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/unwind/sigtramp/main.c @@ -0,0 +1,27 @@ +#include <stdlib.h> +#include <signal.h> +#include <stdio.h> +#include <unistd.h> + +void handler (int in) +{ + puts ("in handler routine"); + while (1) + ; +} + +void +foo () +{ + puts ("in foo ()"); + kill (getpid(), SIGUSR1); +} +int main () +{ + puts ("in main"); // Set breakpoint here + signal (SIGUSR1, handler); + puts ("signal handler set up"); + foo(); + puts ("exiting"); + return 0; +} |