diff options
Diffstat (limited to 'packages/Python/lldbsuite/test/lang/c/tls_globals')
4 files changed, 140 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/lang/c/tls_globals/Makefile b/packages/Python/lldbsuite/test/lang/c/tls_globals/Makefile new file mode 100644 index 0000000..90affed --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/c/tls_globals/Makefile @@ -0,0 +1,11 @@ +LEVEL = ../../../make + +C_SOURCES := main.c +CFLAGS_EXTRAS += -fPIC + +DYLIB_NAME := a +DYLIB_C_SOURCES := a.c + +ENABLE_THREADS := YES + +include $(LEVEL)/Makefile.rules diff --git a/packages/Python/lldbsuite/test/lang/c/tls_globals/TestTlsGlobals.py b/packages/Python/lldbsuite/test/lang/c/tls_globals/TestTlsGlobals.py new file mode 100644 index 0000000..0d9e22e --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/c/tls_globals/TestTlsGlobals.py @@ -0,0 +1,75 @@ +"""Test that thread-local storage can be read correctly.""" + +from __future__ import print_function + + + +import unittest2 +import os, time +import lldb +from lldbsuite.test.lldbtest import * +import lldbsuite.test.lldbutil as lldbutil + +class TlsGlobalTestCase(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + def setUp(self): + TestBase.setUp(self) + + if self.getPlatform() == "freebsd" or self.getPlatform() == "linux": + # LD_LIBRARY_PATH must be set so the shared libraries are found on startup + if "LD_LIBRARY_PATH" in os.environ: + self.runCmd("settings set target.env-vars " + self.dylibPath + "=" + os.environ["LD_LIBRARY_PATH"] + ":" + os.getcwd()) + else: + self.runCmd("settings set target.env-vars " + self.dylibPath + "=" + os.getcwd()) + self.addTearDownHook(lambda: self.runCmd("settings remove target.env-vars " + self.dylibPath)) + + @unittest2.expectedFailure("rdar://7796742") + @skipIfWindows # TLS works differently on Windows, this would need to be implemented separately. + def test(self): + """Test thread-local storage.""" + self.build() + exe = os.path.join(os.getcwd(), "a.out") + self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) + + line1 = line_number('main.c', '// thread breakpoint') + lldbutil.run_break_set_by_file_and_line (self, "main.c", line1, num_expected_locations=1, loc_exact=True) + self.runCmd("run", RUN_SUCCEEDED) + + # The stop reason of the thread should be breakpoint. + self.runCmd("process status", "Get process status") + self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, + substrs = ['stopped', + 'stop reason = breakpoint']) + + # BUG: sometimes lldb doesn't change threads to the stopped thread. + # (unrelated to this test). + self.runCmd("thread select 2", "Change thread") + + # Check that TLS evaluates correctly within the thread. + self.expect("expr var_static", VARIABLES_DISPLAYED_CORRECTLY, + patterns = ["\(int\) \$.* = 88"]) + self.expect("expr var_shared", VARIABLES_DISPLAYED_CORRECTLY, + patterns = ["\(int\) \$.* = 66"]) + + # Continue on the main thread + line2 = line_number('main.c', '// main breakpoint') + lldbutil.run_break_set_by_file_and_line (self, "main.c", line2, num_expected_locations=1, loc_exact=True) + self.runCmd("continue", RUN_SUCCEEDED) + + # The stop reason of the thread should be breakpoint. + self.runCmd("process status", "Get process status") + self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, + substrs = ['stopped', + 'stop reason = breakpoint']) + + # BUG: sometimes lldb doesn't change threads to the stopped thread. + # (unrelated to this test). + self.runCmd("thread select 1", "Change thread") + + # Check that TLS evaluates correctly within the main thread. + self.expect("expr var_static", VARIABLES_DISPLAYED_CORRECTLY, + patterns = ["\(int\) \$.* = 44"]) + self.expect("expr var_shared", VARIABLES_DISPLAYED_CORRECTLY, + patterns = ["\(int\) \$.* = 33"]) diff --git a/packages/Python/lldbsuite/test/lang/c/tls_globals/a.c b/packages/Python/lldbsuite/test/lang/c/tls_globals/a.c new file mode 100644 index 0000000..b9a8590 --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/c/tls_globals/a.c @@ -0,0 +1,18 @@ +//===-- a.c -----------------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include <unistd.h> + +__thread int var_shared = 33; + +void shared_check() +{ + var_shared *= 2; + usleep(1); // shared thread breakpoint +} diff --git a/packages/Python/lldbsuite/test/lang/c/tls_globals/main.c b/packages/Python/lldbsuite/test/lang/c/tls_globals/main.c new file mode 100644 index 0000000..cbe01b8 --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/c/tls_globals/main.c @@ -0,0 +1,36 @@ +//===-- main.c --------------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +#include <stdio.h> +#include <pthread.h> +#include <unistd.h> + +void shared_check(); + +// Create some TLS storage within the static executable. +__thread int var_static = 44; + +void *fn_static(void *param) +{ + var_static *= 2; + shared_check(); + usleep(1); // thread breakpoint + for(;;) + usleep(1); +} + +int main (int argc, char const *argv[]) +{ + pthread_t handle; + pthread_create(&handle, NULL, &fn_static, NULL); + + for(;;) + usleep(1); // main breakpoint + + return 0; +} |
