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Closed by commit rG67420f1b0e9c: [lldb/Util] Add a utility to run transparently
capture and replay tests. (authored by JDevlieghere).
Changed prior to commit:
https://reviews.llvm.org/D72823?vs=238837&id=239170#toc
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D72823/new/
https://reviews.llvm.org/D72823
Files:
lldb/test/Shell/Reproducer/lit.local.cfg
lldb/test/Shell/helper/toolchain.py
lldb/test/Shell/lit.cfg.py
lldb/utils/CMakeLists.txt
lldb/utils/lldb-repro/CMakeLists.txt
lldb/utils/lldb-repro/lldb-repro.py
Index: lldb/utils/lldb-repro/lldb-repro.py
===================================================================
--- /dev/null
+++ lldb/utils/lldb-repro/lldb-repro.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+"""lldb-repro
+
+lldb-repro is a utility to transparently capture and replay debugger sessions
+through the command line driver. Its used to test the reproducers by running
+the test suite twice.
+
+During the first run, with 'capture' as its first argument, it captures a
+reproducer for every lldb invocation and saves it to a well-know location
+derived from the arguments and current working directory.
+
+During the second run, with 'replay' as its first argument, the test suite is
+run again but this time every invocation of lldb replays the previously
+recorded session.
+"""
+
+import sys
+import os
+import tempfile
+import subprocess
+
+
+def help():
+ print("usage: {} capture|replay [args]".fmt(sys.argv[0]))
+
+
+def main():
+ if len(sys.argv) < 3:
+ help()
+ return 1
+
+ # Compute a hash based on the input arguments and the current working
+ # directory.
+ args = ' '.join(sys.argv[3:])
+ cwd = os.getcwd()
+ input_hash = str(hash((cwd, args)))
+
+ # Use the hash to "uniquely" identify a reproducer path.
+ reproducer_path = os.path.join(tempfile.gettempdir(), input_hash)
+
+ # Create a new lldb invocation with capture or replay enabled.
+ lldb = os.path.join(os.path.dirname(sys.argv[0]), 'lldb')
+ new_args = [sys.argv[1]]
+ if sys.argv[2] == "replay":
+ new_args.extend(['--replay', reproducer_path])
+ elif sys.argv[2] == "capture":
+ new_args.extend([
+ '--capture', '--capture-path', reproducer_path,
+ '--reproducer-auto-generate'
+ ])
+ new_args.extend(sys.argv[1:])
+ else:
+ help()
+ return 1
+
+ return subprocess.call(new_args)
+
+
+if __name__ == '__main__':
+ exit(main())
Index: lldb/utils/lldb-repro/CMakeLists.txt
===================================================================
--- /dev/null
+++ lldb/utils/lldb-repro/CMakeLists.txt
@@ -0,0 +1,4 @@
+add_custom_target(lldb-repro)
+add_dependencies(lldb-repro lldb-test-deps)
+set_target_properties(lldb-repro PROPERTIES FOLDER "lldb utils")
+configure_file(lldb-repro.py ${LLVM_RUNTIME_OUTPUT_INTDIR}/lldb-repro COPYONLY)
Index: lldb/utils/CMakeLists.txt
===================================================================
--- lldb/utils/CMakeLists.txt
+++ lldb/utils/CMakeLists.txt
@@ -1,2 +1,3 @@
add_subdirectory(lit-cpuid)
add_subdirectory(lldb-dotest)
+add_subdirectory(lldb-repro)
Index: lldb/test/Shell/lit.cfg.py
===================================================================
--- lldb/test/Shell/lit.cfg.py
+++ lldb/test/Shell/lit.cfg.py
@@ -38,16 +38,24 @@
# test_exec_root: The root path where tests should be run.
config.test_exec_root = os.path.join(config.lldb_obj_root, 'test')
-# Propagate LLDB_CAPTURE_REPRODUCER
+# Propagate reproducer environment vars.
if 'LLDB_CAPTURE_REPRODUCER' in os.environ:
config.environment['LLDB_CAPTURE_REPRODUCER'] = os.environ[
'LLDB_CAPTURE_REPRODUCER']
+# Support running the test suite under the lldb-repro wrapper. This makes it
+# possible to capture a test suite run and then rerun all the test from the
+# just captured reproducer.
+lldb_repro_mode = lit_config.params.get('lldb-run-with-repro', None)
+if lldb_repro_mode:
+ config.skip_reproducer_test = True
+ lit_config.note("Running Shell test with lldb-repo in {} mode.".format(lldb_repro_mode))
+ toolchain.use_lldb_repro_substitutions(config, lldb_repro_mode)
+
llvm_config.use_default_substitutions()
toolchain.use_lldb_substitutions(config)
toolchain.use_support_substitutions(config)
-
if re.match(r'^arm(hf.*-linux)|(.*-linux-gnuabihf)', config.target_triple):
config.available_features.add("armhf-linux")
Index: lldb/test/Shell/helper/toolchain.py
===================================================================
--- lldb/test/Shell/helper/toolchain.py
+++ lldb/test/Shell/helper/toolchain.py
@@ -9,6 +9,11 @@
from lit.llvm.subst import FindTool
from lit.llvm.subst import ToolSubst
+
+def _get_lldb_init_path(config):
+ return os.path.join(config.test_exec_root, 'Shell', 'lit-lldb-init')
+
+
def use_lldb_substitutions(config):
# Set up substitutions for primary tools. These tools must come from config.lldb_tools_dir
# which is basically the build output directory. We do not want to find these in path or
@@ -29,7 +34,7 @@
if config.llvm_libs_dir:
build_script_args.append('--libs-dir={0}'.format(config.llvm_libs_dir))
- lldb_init = os.path.join(config.test_exec_root, 'Shell', 'lit-lldb-init')
+ lldb_init = _get_lldb_init_path(config)
primary_tools = [
ToolSubst('%lldb',
@@ -135,3 +140,18 @@
'llvm-objcopy', 'lli']
additional_tool_dirs += [config.lldb_tools_dir, config.llvm_tools_dir]
llvm_config.add_tool_substitutions(support_tools, additional_tool_dirs)
+
+
+def use_lldb_repro_substitutions(config, mode):
+ lldb_init = _get_lldb_init_path(config)
+ substitutions = [
+ ToolSubst(
+ '%lldb',
+ command=FindTool('lldb-repro'),
+ extra_args=[mode, '--no-lldbinit', '-S', lldb_init]),
+ ToolSubst(
+ '%lldb-init',
+ command=FindTool('lldb-repro'),
+ extra_args=[mode, '-S', lldb_init]),
+ ]
+ llvm_config.add_tool_substitutions(substitutions)
Index: lldb/test/Shell/Reproducer/lit.local.cfg
===================================================================
--- lldb/test/Shell/Reproducer/lit.local.cfg
+++ lldb/test/Shell/Reproducer/lit.local.cfg
@@ -2,5 +2,9 @@
if 'LLVM_DISABLE_CRASH_REPORT' in config.environment:
del config.environment['LLVM_DISABLE_CRASH_REPORT']
+# Unset the always capture environment override.
if 'LLDB_CAPTURE_REPRODUCER' in config.environment:
del config.environment['LLDB_CAPTURE_REPRODUCER']
+
+if config.skip_reproducer_test:
+ config.unsupported = True
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