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Test that breakpoint works correctly in the presence of dead-code stripping. 

llvm-svn: 107719
This commit is contained in:
Johnny Chen 2010-07-06 22:52:00 +00:00
parent 279a6c2669
commit 0e38f42f0a
2 changed files with 93 additions and 4 deletions
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89
lldb/test/dead-strip/TestDeadStrip.py Normal file
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@ -0,0 +1,89 @@
"""
Test that breakpoint works correctly in the presence of dead-code stripping.
"""
import os, time
import unittest
import lldb
import lldbtest
class TestClassTypes(lldbtest.TestBase):
mydir = "dead-strip"
def test_dead_strip(self):
"""Test breakpoint works correctly with dead-code stripping."""
res = self.res
exe = os.path.join(os.getcwd(), "a.out")
self.ci.HandleCommand("file " + exe, res)
self.assertTrue(res.Succeeded())
# Break by function name f1 (live code).
self.ci.HandleCommand("breakpoint set -s a.out -n f1", res)
self.assertTrue(res.Succeeded())
self.assertTrue(res.GetOutput().startswith(
"Breakpoint created: 1: name = 'f1', module = a.out, locations = 1"
))
# Break by function name f2 (dead code).
self.ci.HandleCommand("breakpoint set -s a.out -n f2", res)
self.assertTrue(res.Succeeded())
self.assertTrue(res.GetOutput().startswith(
"Breakpoint created: 2: name = 'f2', module = a.out, locations = 0 "
"(pending)"))
# Break by function name f3 (live code).
self.ci.HandleCommand("breakpoint set -s a.out -n f3", res)
self.assertTrue(res.Succeeded())
self.assertTrue(res.GetOutput().startswith(
"Breakpoint created: 3: name = 'f3', module = a.out, locations = 1"
))
self.ci.HandleCommand("run", res)
time.sleep(0.1)
self.assertTrue(res.Succeeded())
# The stop reason of the thread should be breakpoint (breakpoint #1).
self.ci.HandleCommand("thread list", res)
output = res.GetOutput()
self.assertTrue(res.Succeeded())
self.assertTrue(output.find('state is Stopped') > 0 and
output.find('main.c:20') > 0 and
output.find('where = a.out`f1') > 0 and
output.find('stop reason = breakpoint') > 0)
# The breakpoint should have a hit count of 1.
self.ci.HandleCommand("breakpoint list 1", res)
self.assertTrue(res.Succeeded())
self.assertTrue(res.GetOutput().find(' resolved, hit count = 1') > 0)
self.ci.HandleCommand("continue", res)
self.assertTrue(res.Succeeded())
# The stop reason of the thread should be breakpoint (breakpoint #3).
self.ci.HandleCommand("thread list", res)
output = res.GetOutput()
self.assertTrue(res.Succeeded())
self.assertTrue(output.find('state is Stopped') > 0 and
# TODO:
#
# Uncomment 'main.c:40' line when rdar://problem/8163668
# is fixed.
#
#output.find('main.c:40') > 0 and
output.find('where = a.out`f3') > 0 and
output.find('stop reason = breakpoint') > 0)
# The breakpoint should have a hit count of 1.
self.ci.HandleCommand("breakpoint list 3", res)
self.assertTrue(res.Succeeded())
self.assertTrue(res.GetOutput().find(' resolved, hit count = 1') > 0)
self.ci.HandleCommand("continue", res)
self.assertTrue(res.Succeeded())
if __name__ == '__main__':
lldb.SBDebugger.Initialize()
unittest.main()
lldb.SBDebugger.Terminate()

8
lldb/test/dead-strip/main.c
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@ -14,7 +14,7 @@ int f2 (char *s);
int f3 (char *s);
// We want f1 to start on line 10
// We want f1 to start on line 20
int f1 (char *s)
{
return printf("f1: %s\n", s);
@ -24,7 +24,7 @@ int f1 (char *s)
// We want f2 to start on line 20, this should get stripped
// We want f2 to start on line 30, this should get stripped
int f2 (char *s)
{
return printf("f2: %s\n", s);
@ -34,7 +34,7 @@ int f2 (char *s)
// We want f3 to start on line 30
// We want f3 to start on line 40
int f3 (char *s)
{
return printf("f3: %s\n", s);
@ -44,7 +44,7 @@ int f3 (char *s)
// We want main to start on line 40
// We want main to start on line 50
int main (int argc, const char * argv[])
{
f1("carp");