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This module was originally intended to be imported by top-level scripts to be able to find the LLDB packages and third party libraries. Packages themselves shouldn't need to import it, because by the time it gets into the package, the top-level script should have already done this. Indeed, it was just adding the same values to sys.path multiple times, so this patch is essentially no functional change. To make sure it doesn't get re-introduced, we also delete the `use_lldb_suite` module from `lldbsuite/test`, although the original copy still remains in `lldb/test` llvm-svn: 251963
132 lines
4.2 KiB
Python
132 lines
4.2 KiB
Python
"""Test evaluating expressions repeatedly comparing lldb against gdb."""
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from __future__ import print_function
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import os, sys
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import lldb
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from lldbsuite.test.lldbbench import *
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class RepeatedExprsCase(BenchBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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BenchBase.setUp(self)
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self.source = 'main.cpp'
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self.line_to_break = line_number(self.source, '// Set breakpoint here.')
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self.lldb_avg = None
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self.gdb_avg = None
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self.count = lldb.bmIterationCount
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if self.count <= 0:
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self.count = 100
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@benchmarks_test
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@expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
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def test_compare_lldb_to_gdb(self):
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"""Test repeated expressions with lldb vs. gdb."""
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self.build()
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self.exe_name = 'a.out'
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print()
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self.run_lldb_repeated_exprs(self.exe_name, self.count)
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print("lldb benchmark:", self.stopwatch)
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self.run_gdb_repeated_exprs(self.exe_name, self.count)
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print("gdb benchmark:", self.stopwatch)
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print("lldb_avg/gdb_avg: %f" % (self.lldb_avg/self.gdb_avg))
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def run_lldb_repeated_exprs(self, exe_name, count):
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import pexpect
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exe = os.path.join(os.getcwd(), exe_name)
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# Set self.child_prompt, which is "(lldb) ".
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self.child_prompt = '(lldb) '
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prompt = self.child_prompt
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('%s %s %s' % (lldbtest_config.lldbExec, self.lldbOption, exe))
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child = self.child
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# Turn on logging for what the child sends back.
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if self.TraceOn():
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child.logfile_read = sys.stdout
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child.expect_exact(prompt)
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child.sendline('breakpoint set -f %s -l %d' % (self.source, self.line_to_break))
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child.expect_exact(prompt)
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child.sendline('run')
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child.expect_exact(prompt)
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expr_cmd1 = 'expr ptr[j]->point.x'
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expr_cmd2 = 'expr ptr[j]->point.y'
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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count):
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with self.stopwatch:
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child.sendline(expr_cmd1)
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child.expect_exact(prompt)
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child.sendline(expr_cmd2)
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child.expect_exact(prompt)
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child.sendline('process continue')
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child.expect_exact(prompt)
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child.sendline('quit')
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try:
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self.child.expect(pexpect.EOF)
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except:
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pass
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self.lldb_avg = self.stopwatch.avg()
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if self.TraceOn():
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print("lldb expression benchmark:", str(self.stopwatch))
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self.child = None
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def run_gdb_repeated_exprs(self, exe_name, count):
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import pexpect
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exe = os.path.join(os.getcwd(), exe_name)
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# Set self.child_prompt, which is "(gdb) ".
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self.child_prompt = '(gdb) '
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prompt = self.child_prompt
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('gdb --nx %s' % exe)
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child = self.child
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# Turn on logging for what the child sends back.
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if self.TraceOn():
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child.logfile_read = sys.stdout
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child.expect_exact(prompt)
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child.sendline('break %s:%d' % (self.source, self.line_to_break))
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child.expect_exact(prompt)
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child.sendline('run')
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child.expect_exact(prompt)
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expr_cmd1 = 'print ptr[j]->point.x'
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expr_cmd2 = 'print ptr[j]->point.y'
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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count):
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with self.stopwatch:
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child.sendline(expr_cmd1)
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child.expect_exact(prompt)
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child.sendline(expr_cmd2)
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child.expect_exact(prompt)
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child.sendline('continue')
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child.expect_exact(prompt)
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child.sendline('quit')
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child.expect_exact('The program is running. Exit anyway?')
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child.sendline('y')
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try:
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self.child.expect(pexpect.EOF)
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except:
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pass
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self.gdb_avg = self.stopwatch.avg()
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if self.TraceOn():
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print("gdb expression benchmark:", str(self.stopwatch))
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self.child = None
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