Files
clang-p2996/lldb/test/API/commands/memory/write/TestMemoryWrite.py
Venkata Ramanaiah Nalamothu 94038c570f [lldb] Fix 'memory write' to not allow specifying values when writing file contents
Currently the 'memory write' command allows specifying the values when
writing the file contents to memory but the values are actually ignored. This
patch fixes that by erroring out when values are specified in such cases.

Reviewed By: DavidSpickett

Differential Revision: https://reviews.llvm.org/D114544
2021-11-26 15:50:36 +05:30

84 lines
3.0 KiB
Python

"""
Test the 'memory write' command.
"""
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
class MemoryWriteTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break inside main().
self.line = line_number('main.c', '// Set break point at this line.')
def build_run_stop(self):
self.build()
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Break in main() after the variables are assigned values.
lldbutil.run_break_set_by_file_and_line(self,
"main.c",
self.line,
num_expected_locations=1,
loc_exact=True)
self.runCmd("run", RUN_SUCCEEDED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list",
STOPPED_DUE_TO_BREAKPOINT,
substrs=['stopped', 'stop reason = breakpoint'])
# The breakpoint should have a hit count of 1.
lldbutil.check_breakpoint(self, bpno = 1, expected_hit_count = 1)
@no_debug_info_test
def test_memory_write(self):
"""Test the 'memory write' command for writing values and file contents."""
self.build_run_stop()
self.expect(
"memory read --format c --size 7 --count 1 `&my_string`",
substrs=['abcdefg'])
self.expect(
"memory write --format c --size 7 `&my_string` ABCDEFG")
self.expect(
"memory read --format c --size 7 --count 1 `&my_string`",
substrs=['ABCDEFG'])
self.expect(
"memory write --infile file.txt --size 7 `&my_string`",
substrs=['7 bytes were written'])
self.expect(
"memory read --format c --size 7 --count 1 `&my_string`",
substrs=['abcdefg'])
self.expect(
"memory write --infile file.txt --size 7 `&my_string` ABCDEFG", error=True,
substrs=['error: memory write takes only a destination address when writing file contents'])
self.expect(
"memory write --infile file.txt --size 7", error=True,
substrs=['error: memory write takes a destination address when writing file contents'])
@no_debug_info_test
def test_memory_write_command_usage_syntax(self):
"""Test that 'memory write' command usage syntax shows it does not take values when writing file contents."""
self.expect(
"help memory write",
substrs=[
"memory write [-f <format>] [-s <byte-size>] <address> <value> [<value> [...]]",
"memory write -i <filename> [-s <byte-size>] [-o <offset>] <address>"])