diff options
Diffstat (limited to 'packages/Python/lldbsuite/test/functionalities/dead-strip')
4 files changed, 133 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/dead-strip/Makefile b/packages/Python/lldbsuite/test/functionalities/dead-strip/Makefile new file mode 100644 index 0000000..c60ecd4 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/dead-strip/Makefile @@ -0,0 +1,18 @@ +LEVEL = ../../make + +C_SOURCES := main.c + +ifeq "$(OS)" "" + OS = $(shell uname -s) +endif + +ifeq "$(OS)" "Darwin" + LDFLAGS = $(CFLAGS) -Xlinker -dead_strip +else + CFLAGS += -fdata-sections -ffunction-sections + LDFLAGS = $(CFLAGS) -Wl,--gc-sections +endif + +MAKE_DSYM := NO + +include $(LEVEL)/Makefile.rules diff --git a/packages/Python/lldbsuite/test/functionalities/dead-strip/TestDeadStrip.py b/packages/Python/lldbsuite/test/functionalities/dead-strip/TestDeadStrip.py new file mode 100644 index 0000000..f10736b --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/dead-strip/TestDeadStrip.py @@ -0,0 +1,58 @@ +""" +Test that breakpoint works correctly in the presence of dead-code stripping. +""" + +from __future__ import print_function + + + +import os, time +import lldb +from lldbsuite.test.lldbtest import * +import lldbsuite.test.lldbutil as lldbutil + +class DeadStripTestCase(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + @expectedFailureWindows("llvm.org/pr24778") + @expectedFailureDwo("llvm.org/pr25087") + @skipIfFreeBSD # The -dead_strip linker option isn't supported on FreeBSD versions of ld. + def test(self): + """Test breakpoint works correctly with dead-code stripping.""" + self.build() + exe = os.path.join(os.getcwd(), "a.out") + self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) + + # Break by function name f1 (live code). + lldbutil.run_break_set_by_symbol (self, "f1", num_expected_locations=1, module_name="a.out") + + # Break by function name f2 (dead code). + lldbutil.run_break_set_by_symbol (self, "f2", num_expected_locations=0, module_name="a.out") + + # Break by function name f3 (live code). + lldbutil.run_break_set_by_symbol (self, "f3", num_expected_locations=1, module_name="a.out") + + self.runCmd("run", RUN_SUCCEEDED) + + # The stop reason of the thread should be breakpoint (breakpoint #1). + self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, + substrs = ['stopped', + 'a.out`f1', + 'stop reason = breakpoint']) + + # The breakpoint should have a hit count of 1. + self.expect("breakpoint list -f 1", BREAKPOINT_HIT_ONCE, + substrs = [' resolved, hit count = 1']) + + self.runCmd("continue") + + # The stop reason of the thread should be breakpoint (breakpoint #3). + self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, + substrs = ['stopped', + 'a.out`f3', + 'stop reason = breakpoint']) + + # The breakpoint should have a hit count of 1. + self.expect("breakpoint list -f 3", BREAKPOINT_HIT_ONCE, + substrs = [' resolved, hit count = 1']) diff --git a/packages/Python/lldbsuite/test/functionalities/dead-strip/cmds.txt b/packages/Python/lldbsuite/test/functionalities/dead-strip/cmds.txt new file mode 100644 index 0000000..f6fd045 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/dead-strip/cmds.txt @@ -0,0 +1,4 @@ +b main.c:21 +b main.c:41 +lines -shlib a.out main.c +c diff --git a/packages/Python/lldbsuite/test/functionalities/dead-strip/main.c b/packages/Python/lldbsuite/test/functionalities/dead-strip/main.c new file mode 100644 index 0000000..fe8e7c7 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/dead-strip/main.c @@ -0,0 +1,53 @@ +//===-- 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> + + +int f1 (char *s); +int f2 (char *s); +int f3 (char *s); + + +// We want f1 to start on line 20 +int f1 (char *s) +{ + return printf("f1: %s\n", s); +} + + + + + +// We want f2 to start on line 30, this should get stripped +int f2 (char *s) +{ + return printf("f2: %s\n", s); +} + + + + + +// We want f3 to start on line 40 +int f3 (char *s) +{ + return printf("f3: %s\n", s); +} + + + + + +// We want main to start on line 50 +int main (int argc, const char * argv[]) +{ + f1("carp"); + f3("dong"); + return 0; +} |
