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teak-llvm/lldb/packages/Python/lldbsuite/test/tools/lldb-mi/breakpoint/TestMiBreak.py
Pavel Labath bf37a037d0 BreakpointResolverFileLine: Restrict move-to-nearest-code from moving across function boundaries 
Summary:
This fixes the case where a user tries to set a breakpoint on a source
line outside of any function (e.g. because that code is #ifdefed out, or
the compiler did not emit code for the function, etc.) and we would
silently move the breakpoint to the next function.

Now we check whether the line range of the resolved symbol context
function matches the original line number. We reject any breakpoint
locations that appear to move the breakpoint into a new function. This
filtering only happens if we have full debug info available (e.g. in
case of -gline-tables-only compilation, we still set the breakpoint on
the nearest source line).

Reviewers: jingham

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D30817

llvm-svn: 297817
2017-03-15 09:53:10 +00:00

359 lines
19 KiB
Python
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"""
Test lldb-mi -break-xxx commands.
"""
from __future__ import print_function
import unittest2
import lldbmi_testcase
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class MiBreakTestCase(lldbmi_testcase.MiTestCaseBase):
mydir = TestBase.compute_mydir(__file__)
@skipIfWindows # llvm.org/pr24452: Get lldb-mi tests working on Windows
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
@expectedFlakeyLinux("llvm.org/pr24717")
@skipIfRemote # We do not currently support remote debugging via the MI.
def test_lldbmi_break_insert_function_pending(self):
"""Test that 'lldb-mi --interpreter' works for pending function breakpoints."""
self.spawnLldbMi(args=None)
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
self.runCmd("-break-insert -f printf")
# FIXME function name is unknown on Darwin, fullname should be ??, line is -1
# self.expect("\^done,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"0xffffffffffffffff\",func=\"printf\",file=\"\?\?\",fullname=\"\?\?\",line=\"-1\",pending=\[\"printf\"\],times=\"0\",original-location=\"printf\"}")
self.expect(
"\^done,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"0xffffffffffffffff\",func=\"\?\?\",file=\"\?\?\",fullname=\"\?\?/\?\?\",line=\"0\",pending=\[\"printf\"\],times=\"0\",original-location=\"printf\"}")
# FIXME function name is unknown on Darwin, fullname should be ??, line -1
# self.expect("=breakpoint-modified,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"0xffffffffffffffff\",func=\"printf\",file=\"\?\?\",fullname=\"\?\?\",line=\"-1\",pending=\[\"printf\"\],times=\"0\",original-location=\"printf\"}")
self.expect(
"=breakpoint-modified,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"0xffffffffffffffff\",func=\"\?\?\",file=\"\?\?\",fullname=\"\?\?/\?\?\",line=\"0\",pending=\[\"printf\"\],times=\"0\",original-location=\"printf\"}")
self.runCmd("-exec-run")
self.expect("\^running")
self.expect(
"=breakpoint-modified,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\".+?\",file=\".+?\",fullname=\".+?\",line=\"(-1|\d+)\",pending=\[\"printf\"\],times=\"0\",original-location=\"printf\"}")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
@skipIfWindows # llvm.org/pr24452: Get lldb-mi tests working on Windows
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
@skipIfRemote # We do not currently support remote debugging via the MI.
def test_lldbmi_break_insert_function(self):
"""Test that 'lldb-mi --interpreter' works for function breakpoints."""
self.spawnLldbMi(args=None)
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
self.runCmd("-break-insert -f main")
self.expect(
"\^done,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"main\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"\d+\",pending=\[\"main\"\],times=\"0\",original-location=\"main\"}")
self.expect(
"=breakpoint-modified,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"main\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"\d+\",pending=\[\"main\"\],times=\"0\",original-location=\"main\"}")
self.runCmd("-exec-run")
self.expect("\^running")
self.expect(
"=breakpoint-modified,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"main\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"\d+\",pending=\[\"main\"\],times=\"0\",original-location=\"main\"}")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
# Test that -break-insert can set non-pending BP
self.runCmd("-break-insert printf")
# FIXME function name is unknown on Darwin
# self.expect("\^done,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"printf\",file=\".+?\",fullname=\".+?\",line=\"(-1|\d+)\",times=\"0\",original-location=\"printf\"}")
self.expect(
"\^done,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\".+?\",file=\".+?\",fullname=\".+?\",line=\"(-1|\d+)\",times=\"0\",original-location=\"printf\"}")
# FIXME function name is unknown on Darwin
# self.expect("=breakpoint-modified,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"printf\",file=\".+?\",fullname=\".+?\",line=\"(-1|\d+)\",times=\"0\",original-location=\"printf\"}")
self.expect(
"=breakpoint-modified,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\".+?\",file=\".+?\",fullname=\".+?\",line=\"(-1|\d+)\",times=\"0\",original-location=\"printf\"}")
# FIXME function name is unknown on Darwin
# self.expect("=breakpoint-modified,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"printf\",file=\".+?\",fullname=\".+?\",line=\"(-1|\d+)\",times=\"0\",original-location=\"printf\"}")
self.expect(
"=breakpoint-modified,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\".+?\",file=\".+?\",fullname=\".+?\",line=\"(-1|\d+)\",times=\"0\",original-location=\"printf\"}")
# Test that -break-insert fails if non-pending BP can't be resolved
self.runCmd("-break-insert unknown_func")
self.expect(
"\^error,msg=\"Command 'break-insert'. Breakpoint location 'unknown_func' not found\"")
# Test that non-pending BP was set correctly
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\".*bkptno=\"2\"")
# Test that we can set a BP using the file:func syntax
self.runCmd("-break-insert main.cpp:main")
self.expect("\^done,bkpt={number=\"4\"")
self.runCmd("-break-insert main.cpp:ns::foo1")
self.expect("\^done,bkpt={number=\"5\"")
# FIXME: quotes on filenames aren't handled correctly in lldb-mi.
#self.runCmd("-break-insert \"main.cpp\":main")
# self.expect("\^done,bkpt={number=\"6\"")
# We should hit BP #5 on 'main.cpp:ns::foo1'
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\".*bkptno=\"5\"")
# FIXME: this test is disabled due to lldb bug llvm.org/pr24271.
# Test that we can set a BP using the global namespace token
#self.runCmd("-break-insert ::main")
# self.expect("\^done,bkpt={number=\"7\"")
#self.runCmd("-break-insert main.cpp:::main")
# self.expect("\^done,bkpt={number=\"8\"")
@skipIfWindows # llvm.org/pr24452: Get lldb-mi tests working on Windows
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
@skipIfRemote # We do not currently support remote debugging via the MI.
def test_lldbmi_break_insert_file_line_pending(self):
"""Test that 'lldb-mi --interpreter' works for pending file:line breakpoints."""
self.spawnLldbMi(args=None)
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
# Find the line number to break inside main() and set
# pending BP
line = line_number('main.cpp', '// BP_return')
self.runCmd("-break-insert -f main.cpp:%d" % line)
self.expect(
"\^done,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"main\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"%d\",pending=\[\"main.cpp:%d\"\],times=\"0\",original-location=\"main.cpp:%d\"}" %
(line,
line,
line))
self.expect(
"=breakpoint-modified,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"main\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"%d\",pending=\[\"main.cpp:%d\"\],times=\"0\",original-location=\"main.cpp:%d\"}" %
(line,
line,
line))
self.runCmd("-exec-run")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
@skipIfWindows # llvm.org/pr24452: Get lldb-mi tests working on Windows
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
@skipIfRemote # We do not currently support remote debugging via the MI.
def test_lldbmi_break_insert_file_line(self):
"""Test that 'lldb-mi --interpreter' works for file:line breakpoints."""
self.spawnLldbMi(args=None)
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
self.runCmd("-break-insert -f main")
self.expect("\^done,bkpt={number=\"1\"")
self.runCmd("-exec-run")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
# Test that -break-insert can set non-pending BP
line = line_number('main.cpp', '// BP_return')
self.runCmd("-break-insert main.cpp:%d" % line)
self.expect(
"\^done,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"main\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"%d\",times=\"0\",original-location=\"main.cpp:%d\"}" %
(line, line))
self.expect(
"=breakpoint-modified,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"main\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"%d\",times=\"0\",original-location=\"main.cpp:%d\"}" %
(line, line))
# Test that -break-insert fails if non-pending BP can't be resolved
self.runCmd("-break-insert unknown_file:1")
self.expect(
"\^error,msg=\"Command 'break-insert'. Breakpoint location 'unknown_file:1' not found\"")
# Test that non-pending BP was set correctly
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
@skipIfWindows # llvm.org/pr24452: Get lldb-mi tests working on Windows
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
@skipIfRemote # We do not currently support remote debugging via the MI.
def test_lldbmi_break_insert_file_line_absolute_path(self):
"""Test that 'lldb-mi --interpreter' works for file:line breakpoints."""
self.spawnLldbMi(args=None)
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
self.runCmd("-break-insert -f main")
self.expect("\^done,bkpt={number=\"1\"")
self.runCmd("-exec-run")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
import os
path = os.path.join(os.getcwd(), "main.cpp")
line = line_number('main.cpp', '// BP_return')
self.runCmd("-break-insert %s:%d" % (path, line))
self.expect("\^done,bkpt={number=\"2\"")
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
@skipIfWindows # llvm.org/pr24452: Get lldb-mi tests working on Windows
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
@skipIfRemote # We do not currently support remote debugging via the MI.
def test_lldbmi_break_insert_settings(self):
"""Test that 'lldb-mi --interpreter' can set breakpoints accoridng to global options."""
self.spawnLldbMi(args=None)
# Load executable
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
# Set target.move-to-nearest-code=off and try to set BP #1 that
# shouldn't be hit
self.runCmd(
"-interpreter-exec console \"settings set target.move-to-nearest-code off\"")
self.expect("\^done")
line_decl = line_number('main.cpp', '// BP_main_decl')
line_in = line_number('main.cpp', '// BP_in_main')
self.runCmd("-break-insert -f main.cpp:%d" % line_in)
self.expect("\^done,bkpt={number=\"1\"")
# Test that non-pending BP will not be set on non-existing line if target.move-to-nearest-code=off
# Note: this increases the BP number by 1 even though BP #2 is invalid.
self.runCmd("-break-insert main.cpp:%d" % line_in)
self.expect(
"\^error,msg=\"Command 'break-insert'. Breakpoint location 'main.cpp:%d' not found\"" %
line_in)
# Set target.move-to-nearest-code=on and target.skip-prologue=on and
# set BP #3 & #4
self.runCmd(
"-interpreter-exec console \"settings set target.move-to-nearest-code on\"")
self.runCmd(
"-interpreter-exec console \"settings set target.skip-prologue on\"")
self.expect("\^done")
self.runCmd("-break-insert main.cpp:%d" % line_in)
self.expect("\^done,bkpt={number=\"3\"")
self.runCmd("-break-insert main.cpp:%d" % line_decl)
self.expect("\^done,bkpt={number=\"4\"")
# Set target.skip-prologue=off and set BP #5
self.runCmd(
"-interpreter-exec console \"settings set target.skip-prologue off\"")
self.expect("\^done")
self.runCmd("-break-insert main.cpp:%d" % line_decl)
self.expect("\^done,bkpt={number=\"5\"")
# Test that BP #5 is located before BP #4
self.runCmd("-exec-run")
self.expect("\^running")
self.expect(
"\*stopped,reason=\"breakpoint-hit\",disp=\"del\",bkptno=\"5\"")
# Test that BP #4 is hit
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect(
"\*stopped,reason=\"breakpoint-hit\",disp=\"del\",bkptno=\"4\"")
# Test that BP #3 is hit
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect(
"\*stopped,reason=\"breakpoint-hit\",disp=\"del\",bkptno=\"3\"")
# Test that the target.language=pascal setting works and that BP #6 is
# NOT set
self.runCmd(
"-interpreter-exec console \"settings set target.language c\"")
self.expect("\^done")
self.runCmd("-break-insert ns.foo1")
self.expect("\^error")
# Test that the target.language=c++ setting works and that BP #7 is hit
self.runCmd(
"-interpreter-exec console \"settings set target.language c++\"")
self.expect("\^done")
self.runCmd("-break-insert ns::foo1")
self.expect("\^done,bkpt={number=\"7\"")
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect(
"\*stopped,reason=\"breakpoint-hit\",disp=\"del\",bkptno=\"7\"")
# Test that BP #1 and #2 weren't set by running to program exit
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect("\*stopped,reason=\"exited-normally\"")
@skipIfWindows # llvm.org/pr24452: Get lldb-mi tests working on Windows
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
@skipIfRemote # We do not currently support remote debugging via the MI.
def test_lldbmi_break_enable_disable(self):
"""Test that 'lldb-mi --interpreter' works for enabling / disabling breakpoints."""
self.spawnLldbMi(args=None)
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
self.runCmd("-break-insert main")
self.expect(
"\^done,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"main\"")
self.expect(
"=breakpoint-modified,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"main\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"\d+\",times=\"0\",original-location=\"main\"}")
self.runCmd("-exec-run")
self.expect("\^running")
self.expect(
"=breakpoint-modified,bkpt={number=\"1\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"main\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"\d+\",times=\"0\",original-location=\"main\"}")
self.expect(
"\*stopped,reason=\"breakpoint-hit\",disp=\"del\",bkptno=\"1\"")
self.runCmd("-break-insert ns::foo1")
self.expect(
"\^done,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"ns::foo1\(\)\"")
self.expect(
"=breakpoint-modified,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"ns::foo1\(\)\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"\d+\",times=\"0\",original-location=\"ns::foo1\"}")
self.runCmd("-break-insert ns::foo2")
self.expect(
"\^done,bkpt={number=\"3\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"ns::foo2\(\)\"")
self.expect(
"=breakpoint-modified,bkpt={number=\"3\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"ns::foo2\(\)\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"\d+\",times=\"0\",original-location=\"ns::foo2\"}")
# disable the 2nd breakpoint
self.runCmd("-break-disable 2")
self.expect("\^done")
self.expect(
"=breakpoint-modified,bkpt={number=\"2\",type=\"breakpoint\",disp=\"keep\",enabled=\"n\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"ns::foo1\(\)\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"\d+\",times=\"0\",original-location=\"ns::foo1\"}")
# disable the 3rd breakpoint and re-enable
self.runCmd("-break-disable 3")
self.expect("\^done")
self.expect(
"=breakpoint-modified,bkpt={number=\"3\",type=\"breakpoint\",disp=\"keep\",enabled=\"n\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"ns::foo2\(\)\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"\d+\",times=\"0\",original-location=\"ns::foo2\"}")
self.runCmd("-break-enable 3")
self.expect("\^done")
self.expect(
"=breakpoint-modified,bkpt={number=\"3\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"(?!0xffffffffffffffff)0x[0-9a-f]+\",func=\"ns::foo2\(\)\",file=\"main\.cpp\",fullname=\".+?main\.cpp\",line=\"\d+\",times=\"0\",original-location=\"ns::foo2\"}")
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect(
"\*stopped,reason=\"breakpoint-hit\",disp=\"del\",bkptno=\"3\"")
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