[llvm-dev] PSA: debuginfo-tests workflow changing slightly

Zachary Turner via llvm-dev llvm-dev at lists.llvm.org
Wed Dec 6 10:10:07 PST 2017


Adrian, Mike, Chris?  Any update on this?  I've temporarily switched to
working on something different, but I plan to be back on this in a couple
of weeks.  It's been a month since my first revert of this CL, which seems
like a reasonable amount of lead-time to deal with issues surrounding
downstream buildbot failures.  I'm planning to move forward with this in a
couple of weeks once I finish up my current task, and I would really prefer
to not be further blocked by downstream buildbot failures.

Is there any way you can try Don's patch above on one of the failing
machines?  Or proceed with your earlier solution of fixing up all the
jenkins builders?

On Sat, Nov 25, 2017 at 3:46 PM Don Hinton <hintonda at gmail.com> wrote:

> Hi Zachary:
>
> I was able to reproduce the greendragon results locally (OSX), and fix the
> problem by excluding 'debuginfo-tests' from check-clang -- this prevents
> them from being added twice, once for check-clang and again for
> check-debuginfo.
>
> Below are the minimized patches I used to reproduce and fix the problem --
> based on your originals.
>
> I've verified these patches work when including debuginfo-tests in either
> clang/test or llvm/projects.
>
> hth...
> don
>
>
> local:/Users/dhinton/projects/llvm_project/llvm/tools/clang $ git diff
> master
> diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
> index c1ac9e4f0f..8c2db7600d 100644
> --- a/test/CMakeLists.txt
> +++ b/test/CMakeLists.txt
> @@ -131,3 +131,7 @@ add_lit_testsuites(CLANG ${CMAKE_CURRENT_SOURCE_DIR}
>  add_custom_target(clang-test)
>  add_dependencies(clang-test check-clang)
>  set_target_properties(clang-test PROPERTIES FOLDER "Clang tests")
> +
> +if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/debuginfo-tests/CMakeLists.txt")
> +  add_subdirectory(debuginfo-tests)
> +endif()
> diff --git a/test/lit.cfg.py b/test/lit.cfg.py
> index 39bdf36afd..5323cfe735 100644
> --- a/test/lit.cfg.py
> +++ b/test/lit.cfg.py
> @@ -31,7 +31,7 @@ config.suffixes = ['.c', '.cpp', '.cppm', '.m', '.mm',
> '.cu',
>  # excludes: A list of directories to exclude from the testsuite. The
> 'Inputs'
>  # subdirectories contain auxiliary inputs for various tests in their
> parent
>  # directories.
> -config.excludes = ['Inputs', 'CMakeLists.txt', 'README.txt',
> 'LICENSE.txt']
> +config.excludes = ['Inputs', 'CMakeLists.txt', 'README.txt',
> 'LICENSE.txt', 'debuginfo-tests']
>
>  # test_source_root: The root path where tests are located.
>  config.test_source_root = os.path.dirname(__file__)
> @@ -58,8 +58,6 @@ tool_dirs = [config.clang_tools_dir,
> config.llvm_tools_dir]
>
>  tools = [
>      'c-index-test', 'clang-check', 'clang-diff', 'clang-format', 'opt',
> -    ToolSubst('%test_debuginfo', command=os.path.join(
> -        config.llvm_src_root, 'utils', 'test_debuginfo.pl')),
>      ToolSubst('%clang_func_map', command=FindTool(
>          'clang-func-mapping'), unresolved='ignore'),
>  ]
>
>
> local:/Users/dhinton/projects/llvm_project/debuginfo-tests $ git diff master
> diff --git a/CMakeLists.txt b/CMakeLists.txt
> new file mode 100644
> index 0000000..87260f1
> --- /dev/null
> +++ b/CMakeLists.txt
> @@ -0,0 +1,26 @@
> +# Debug Info tests.  These tests invoke clang to generate programs with
> +# various types of debug info, and then run those programs under a debugger
> +# such as GDB or LLDB to verify the results.
> +
> +set(DEBUGINFO_TESTS_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
> +set(DEBUGINFO_TESTS_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
> +
> +set(DEBUGINFO_TEST_DEPS
> +  clang
> +  FileCheck
> +  count
> +  not
> +  )
> +
> +configure_lit_site_cfg(
> +  ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in
> +  ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg.py
> +  MAIN_CONFIG
> +  ${CMAKE_CURRENT_SOURCE_DIR}/lit.cfg.py
> +  )
> +
> +add_lit_testsuite(check-debuginfo "Running debug info integration tests"
> +  ${CMAKE_CURRENT_BINARY_DIR}
> +  DEPENDS ${DEBUGINFO_TEST_DEPS}
> +  )
> +set_target_properties(check-debuginfo PROPERTIES FOLDER "Debug info tests")
> diff --git a/lit.cfg.py b/lit.cfg.py
> new file mode 100644
> index 0000000..ad65f46
> --- /dev/null
> +++ b/lit.cfg.py
> @@ -0,0 +1,59 @@
> +# -*- Python -*-
> +
> +import os
> +import platform
> +import re
> +import subprocess
> +import tempfile
> +
> +import lit.formats
> +import lit.util
> +
> +from lit.llvm import llvm_config
> +from lit.llvm.subst import ToolSubst
> +from lit.llvm.subst import FindTool
> +
> +# Configuration file for the 'lit' test runner.
> +
> +# name: The name of this test suite.
> +config.name = 'debuginfo-tests'
> +
> +# testFormat: The test format to use to interpret tests.
> +#
> +# For now we require '&&' between commands, until they get globally killed and
> +# the test runner updated.
> +config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
> +
> +# suffixes: A list of file extensions to treat as test files.
> +config.suffixes = ['.c', '.cpp', '.m']
> +
> +# excludes: A list of directories to exclude from the testsuite. The 'Inputs'
> +# subdirectories contain auxiliary inputs for various tests in their parent
> +# directories.
> +config.excludes = ['Inputs']
> +
> +# test_source_root: The root path where tests are located.
> +config.test_source_root = os.path.join(config.debuginfo_tests_src_root)
> +
> +# test_exec_root: The root path where tests should be run.
> +config.test_exec_root = config.debuginfo_tests_obj_root
> +
> +llvm_config.use_default_substitutions()
> +
> +llvm_config.use_clang()
> +
> +if config.llvm_use_sanitizer:
> +    # Propagate path to symbolizer for ASan/MSan.
> +    llvm_config.with_system_environment(
> +        ['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH'])
> +
> +tool_dirs = [config.llvm_tools_dir]
> +
> +tools = [
> +    ToolSubst('%test_debuginfo', command=os.path.join(
> +        config.debuginfo_tests_src_root, 'test_debuginfo.pl')),
> +]
> +
> +llvm_config.add_tool_substitutions(tools, tool_dirs)
> +
> +lit.util.usePlatformSdkOnDarwin(config, lit_config)
> diff --git a/lit.site.cfg.py.in b/lit.site.cfg.py.in
> new file mode 100644
> index 0000000..8c4481a
> --- /dev/null
> +++ b/lit.site.cfg.py.in
> @@ -0,0 +1,25 @@
> + at LIT_SITE_CFG_IN_HEADER@
> +
> +import lit.util
> +
> +config.test_exec_root = "@CMAKE_BINARY_DIR@"
> +
> +config.llvm_src_root = "@LLVM_SOURCE_DIR@"
> +config.llvm_obj_root = "@LLVM_BINARY_DIR@"
> +config.llvm_tools_dir = "@LLVM_TOOLS_DIR@"
> +config.llvm_libs_dir = "@LLVM_LIBS_DIR@"
> +config.llvm_shlib_dir = "@SHLIBDIR@"
> +config.llvm_plugin_ext = "@LLVM_PLUGIN_EXT@"
> +config.debuginfo_tests_obj_root = "@DEBUGINFO_TESTS_BINARY_DIR@"
> +config.debuginfo_tests_src_root = "@DEBUGINFO_TESTS_SOURCE_DIR@"
> +config.has_lld = lit.util.pythonize_bool("@DEBUGINFO_TESTS_HAS_LLD@")
> +config.host_triple = "@LLVM_HOST_TRIPLE@"
> +config.target_triple = "@TARGET_TRIPLE@"
> +config.host_arch = "@HOST_ARCH@"
> +
> +config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
> +
> + at LIT_SITE_CFG_IN_FOOTER@
> +
> +# Let the main config do the real work.
> +lit_config.load_config(config, "@DEBUGINFO_TESTS_SOURCE_DIR@/lit.cfg.py")
> diff --git a/test_debuginfo.pl b/test_debuginfo.pl
> new file mode 100755
> index 0000000..adc11c3
> --- /dev/null
> +++ b/test_debuginfo.pl
> @@ -0,0 +1,80 @@
> +#!/usr/bin/perl
> +#
> +# This script tests debugging information generated by a compiler.
> +# Input arguments
> +#   - Input source program. Usually this source file is decorated using
> +#     special comments to communicate debugger commands.
> +#   - Executable file. This file is generated by the compiler.
> +#
> +# This perl script extracts debugger commands from input source program
> +# comments in a script. A debugger is used to load the executable file
> +# and run the script generated from source program comments. Finally,
> +# the debugger output is checked, using FileCheck, to validate
> +# debugging information.
> +#
> +# On Darwin the default is to use the llgdb.py wrapper script which
> +# translates gdb commands into their lldb equivalents.
> +
> +use File::Basename;
> +use Config;
> +use Cwd;
> +
> +my $testcase_file = $ARGV[0];
> +my $executable_file = $ARGV[1];
> +
> +my $input_filename = basename $testcase_file;
> +my $output_dir = dirname $executable_file;
> +
> +my $debugger_script_file = "$output_dir/$input_filename.debugger.script";
> +my $output_file = "$output_dir/$input_filename.gdb.output";
> +
> +my %cmd_map = ();
> +# Assume lldb to be the debugger on Darwin.
> +my $use_lldb = 0;
> +$use_lldb = 1 if ($Config{osname} eq "darwin");
> +
> +# Extract debugger commands from testcase. They are marked with DEBUGGER:
> +# at the beginning of a comment line.
> +open(INPUT, $testcase_file);
> +open(OUTPUT, ">$debugger_script_file");
> +while(<INPUT>) {
> +    my($line) = $_;
> +    $i = index($line, "DEBUGGER:");
> +    if ( $i >= 0) {
> +        $l = length("DEBUGGER:");
> +        $s = substr($line, $i + $l);
> +        print OUTPUT  "$s";
> +    }
> +}
> +print OUTPUT "\n";
> +print OUTPUT "quit\n";
> +close(INPUT);
> +close(OUTPUT);
> +
> +# setup debugger and debugger options to run a script.
> +my $my_debugger = $ENV{'DEBUGGER'};
> +if (!$my_debugger) {
> +    if ($use_lldb) {
> +        my $path = dirname(Cwd::abs_path($0));
> +        $my_debugger = "/usr/bin/env python $path/llgdb.py";
> +    } else {
> +        $my_debugger = "gdb";
> +    }
> +}
> +
> +# quiet / exit after cmdline / no init file / execute script
> +my $debugger_options = "-q -batch -n -x";
> +
> +# run debugger and capture output.
> +system("$my_debugger $debugger_options $debugger_script_file $executable_file > $output_file 2>&1");
> +
> +# validate output.
> +system("FileCheck", "-input-file", "$output_file", "$testcase_file");
> +if ($?>>8 == 1) {
> +    print "Debugger output was:\n";
> +    system("cat", "$output_file");
> +    exit 1;
> +}
> +else {
> +    exit 0;
> +}
>
>
> local:/Users/dhinton/projects/llvm_project/llvm $ git diff master
> diff --git a/CMakeLists.txt b/CMakeLists.txt
> index 8cd9d053c63..7d0fe05b511 100644
> --- a/CMakeLists.txt
> +++ b/CMakeLists.txt
> @@ -110,7 +110,7 @@ endif()
>  # LLVM_EXTERNAL_${project}_SOURCE_DIR using LLVM_ALL_PROJECTS
>  # This allows an easy way of setting up a build directory for llvm and another
>  # one for llvm+clang+... using the same sources.
> -set(LLVM_ALL_PROJECTS "clang;libcxx;libcxxabi;lldb;compiler-rt;lld;polly")
> +set(LLVM_ALL_PROJECTS "clang;libcxx;libcxxabi;lldb;compiler-rt;lld;polly,debuginfo-tests")
>  set(LLVM_ENABLE_PROJECTS "" CACHE STRING
>  	"Semicolon-separated list of projects to build (${LLVM_ALL_PROJECTS}), or \"all\".")
>  if( LLVM_ENABLE_PROJECTS STREQUAL "all" )
> @@ -885,13 +885,16 @@ if( LLVM_INCLUDE_EXAMPLES )
>  endif()
>
>  if( LLVM_INCLUDE_TESTS )
> -  if(EXISTS ${LLVM_MAIN_SRC_DIR}/projects/test-suite AND TARGET clang)
> -    include(LLVMExternalProjectUtils)
> -    llvm_ExternalProject_Add(test-suite ${LLVM_MAIN_SRC_DIR}/projects/test-suite
> -      USE_TOOLCHAIN
> -      EXCLUDE_FROM_ALL
> -      NO_INSTALL
> -      ALWAYS_CLEAN)
> +  if(TARGET clang)
> +    if(EXISTS ${LLVM_MAIN_SRC_DIR}/projects/test-suite)
> +      include(LLVMExternalProjectUtils)
> +      llvm_ExternalProject_Add(test-suite ${LLVM_MAIN_SRC_DIR}/projects/test-suite
> +        USE_TOOLCHAIN
> +        EXCLUDE_FROM_ALL
> +        NO_INSTALL
> +        ALWAYS_CLEAN)
> +    endif()
> +    add_llvm_external_project(debuginfo-tests projects/debuginfo-tests)
>    endif()
>    add_subdirectory(utils/lit)
>    add_subdirectory(test)
> diff --git a/projects/CMakeLists.txt b/projects/CMakeLists.txt
> index 9102efbdcb4..11835fa89d2 100644
> --- a/projects/CMakeLists.txt
> +++ b/projects/CMakeLists.txt
> @@ -10,6 +10,7 @@ foreach(entry ${entries})
>         (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/libcxxabi) AND
>         (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/libunwind) AND
>         (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/test-suite) AND
> +       (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/debuginfo-tests) AND
>         (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/parallel-libs) AND
>         (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/openmp))
>        add_subdirectory(${entry})
> diff --git a/utils/lit/lit/llvm/config.py b/utils/lit/lit/llvm/config.py
> index c631f8b8865..c2e5c9ff141 100644
> --- a/utils/lit/lit/llvm/config.py
> +++ b/utils/lit/lit/llvm/config.py
> @@ -413,8 +413,10 @@ class LLVMConfig(object):
>              self.config.substitutions.append(
>                  ('%target_itanium_abi_host_triple', ''))
>
> -        self.config.substitutions.append(
> -            ('%src_include_dir', self.config.clang_src_dir + '/include'))
> +        clang_src_dir = getattr(self.config, 'clang_src_dir', None)
> +        if clang_src_dir:
> +            self.config.substitutions.append(
> +                ('%src_include_dir', os.path.join(clang_src_dir, 'include')))
>
>          # FIXME: Find nicer way to prohibit this.
>          self.config.substitutions.append(
> diff --git a/utils/test_debuginfo.pl b/utils/test_debuginfo.pl
> deleted file mode 100755
> index aaf90d95468..00000000000
> --- a/utils/test_debuginfo.pl
> +++ /dev/null
> @@ -1,80 +0,0 @@
> -#!/usr/bin/perl
> -#
> -# This script tests debugging information generated by a compiler.
> -# Input arguments
> -#   - Input source program. Usually this source file is decorated using
> -#     special comments to communicate debugger commands.
> -#   - Executable file. This file is generated by the compiler.
> -#
> -# This perl script extracts debugger commands from input source program
> -# comments in a script. A debugger is used to load the executable file
> -# and run the script generated from source program comments. Finally,
> -# the debugger output is checked, using FileCheck, to validate
> -# debugging information.
> -#
> -# On Darwin the default is to use the llgdb.py wrapper script which
> -# translates gdb commands into their lldb equivalents.
> -
> -use File::Basename;
> -use Config;
> -use Cwd;
> -
> -my $testcase_file = $ARGV[0];
> -my $executable_file = $ARGV[1];
> -
> -my $input_filename = basename $testcase_file;
> -my $output_dir = dirname $executable_file;
> -
> -my $debugger_script_file = "$output_dir/$input_filename.debugger.script";
> -my $output_file = "$output_dir/$input_filename.gdb.output";
> -
> -my %cmd_map = ();
> -# Assume lldb to be the debugger on Darwin.
> -my $use_lldb = 0;
> -$use_lldb = 1 if ($Config{osname} eq "darwin");
> -
> -# Extract debugger commands from testcase. They are marked with DEBUGGER:
> -# at the beginning of a comment line.
> -open(INPUT, $testcase_file);
> -open(OUTPUT, ">$debugger_script_file");
> -while(<INPUT>) {
> -    my($line) = $_;
> -    $i = index($line, "DEBUGGER:");
> -    if ( $i >= 0) {
> -        $l = length("DEBUGGER:");
> -        $s = substr($line, $i + $l);
> -        print OUTPUT  "$s";
> -    }
> -}
> -print OUTPUT "\n";
> -print OUTPUT "quit\n";
> -close(INPUT);
> -close(OUTPUT);
> -
> -# setup debugger and debugger options to run a script.
> -my $my_debugger = $ENV{'DEBUGGER'};
> -if (!$my_debugger) {
> -    if ($use_lldb) {
> -        my $path = dirname(Cwd::abs_path($0));
> -        $my_debugger = "/usr/bin/env python $path/../tools/clang/test/debuginfo-tests/llgdb.py";
> -    } else {
> -        $my_debugger = "gdb";
> -    }
> -}
> -
> -# quiet / exit after cmdline / no init file / execute script
> -my $debugger_options = "-q -batch -n -x";
> -
> -# run debugger and capture output.
> -system("$my_debugger $debugger_options $debugger_script_file $executable_file > $output_file 2>&1");
> -
> -# validate output.
> -system("FileCheck", "-input-file", "$output_file", "$testcase_file");
> -if ($?>>8 == 1) {
> -    print "Debugger output was:\n";
> -    system("cat", "$output_file");
> -    exit 1;
> -}
> -else {
> -    exit 0;
> -}
>
>
>
> On Tue, Nov 21, 2017 at 9:29 PM, Zachary Turner <zturner at google.com>
> wrote:
>
>> Definitely welcome to look into it, but unless you have physical access
>> to one of these buildbots, I don't think we should commit anything else
>> speculatively without having someone who does have physical access first
>> confirm it.
>>
>> On Tue, Nov 21, 2017 at 7:25 PM Don Hinton <hintonda at gmail.com> wrote:
>>
>>> I sorta enjoy debugging stuff like this, so if you don't mind, I'll dig
>>> into it once I get a chance -- traveling so, my access is a bit sketchy
>>> right now.
>>>
>>> I'll see if I can grab the logs and let you know if I find anything
>>> interesting.
>>>
>>> On Tue, Nov 21, 2017 at 7:04 PM, Zachary Turner <zturner at google.com>
>>> wrote:
>>>
>>>> That change was added specifically to workaround a failure in a
>>>> previous version of the commit.  I think as chandler says it's pretty much
>>>> impossible for me to make any progress unless someone whose build bot is
>>>> failing actually sits down, applies the patch, makes it work, and then
>>>> sends me back the result.
>>>>
>>>> On Tue, Nov 21, 2017 at 7:03 PM Don Hinton <hintonda at gmail.com> wrote:
>>>>
>>>>> Hi Zackary,
>>>>>
>>>>> Did you see my followup to you cfe-commits rollback:
>>>>>
>>>>>
>>>>> http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20171120/210212.html
>>>>>
>>>>> I think you can just remove the change to cfe/trunk/test/CMakeLists.txt
>>>>> and it should work just fine.
>>>>>
>>>>> hth...
>>>>> don
>>>>>
>>>>> On Tue, Nov 21, 2017 at 12:00 PM Zachary Turner via llvm-dev <
>>>>> llvm-dev at lists.llvm.org> wrote:
>>>>>
>>>>>> Just an update,
>>>>>>
>>>>>> At this point I've submitted and reverted this probably 6+ times, and
>>>>>> I don't have time to be blocked by this anymore.
>>>>>>
>>>>>> I'm looking into alternatives for now, including ways of creating a
>>>>>> new top-level git repo such as
>>>>>> https://git.llvm.org/git/codeview-tests.git/.
>>>>>>
>>>>>> I wish there were another way, but at this point I've been working on
>>>>>> appeasing this for close to 2 months and I need some control over the bits
>>>>>> that determine whether I'm able to make forward progress.
>>>>>>
>>>>>> If and when someone on the Apple side has some time to make this work
>>>>>> with their build infrastructure, I will be happy to revisit.
>>>>>>
>>>>>> On Mon, Nov 13, 2017 at 4:44 PM Zachary Turner <zturner at google.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Great!  It's close to the end of the day, so I'll submit tomorrow to
>>>>>>> make sure everything has a chance to go fully green again to ensure I get
>>>>>>> failure emails if it breaks.
>>>>>>>
>>>>>>> On Mon, Nov 13, 2017 at 4:43 PM Adrian Prantl <aprantl at apple.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> I can confirm that that fixes the issue!
>>>>>>>>
>>>>>>>> — adrian
>>>>>>>>
>>>>>>>>
>>>>>>>> On Nov 13, 2017, at 4:38 PM, Zachary Turner <zturner at google.com>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>> Yea I also just found it.  Try adding this code in the bottom of
>>>>>>>> debuginfo-tests/lit.cfg.py
>>>>>>>>
>>>>>>>> lit.util.usePlatformSdkOnDarwin(config, lit_config)
>>>>>>>>
>>>>>>>>
>>>>>>>> On Mon, Nov 13, 2017 at 4:38 PM Adrian Prantl <aprantl at apple.com>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> Ha! Found it. *Somebody* is setting an SDKROOT variable in the
>>>>>>>>> environment. Can you find the code that would do this?
>>>>>>>>>
>>>>>>>>> — adrian
>>>>>>>>>
>>>>>>>>> > On Nov 13, 2017, at 4:30 PM, Adrian Prantl via llvm-dev <
>>>>>>>>> llvm-dev at lists.llvm.org> wrote:
>>>>>>>>> >
>>>>>>>>> > Yes I can reproduce this locally. It looks like we are not
>>>>>>>>> passing an -isysroot (pointing to the SDK) to clang but it isn’t clear what
>>>>>>>>> lit magic would expand this.
>>>>>>>>> >
>>>>>>>>> > -- adrian
>>>>>>>>> >
>>>>>>>>> >> On Nov 13, 2017, at 3:30 PM, Zachary Turner <zturner at google.com>
>>>>>>>>> wrote:
>>>>>>>>> >>
>>>>>>>>> >> Yea I'm preparing a revert right now.  Does it happen for you
>>>>>>>>> when you run debuginfo-tests locally?
>>>>>>>>> >>
>>>>>>>>> >> On Mon, Nov 13, 2017 at 3:28 PM Adrian Prantl <
>>>>>>>>> aprantl at apple.com> wrote:
>>>>>>>>> >> Since this is causing all of our internal CI to back up, could
>>>>>>>>> you please revert your two changes, so we can make sure that they were
>>>>>>>>> actually responsible, and can work on a fix for this? Let me know how we
>>>>>>>>> can help investigate this.
>>>>>>>>> >>
>>>>>>>>> >> -- adrian
>>>>>>>>> >>
>>>>>>>>> >>
>>>>>>>>> >>> On Nov 13, 2017, at 3:25 PM, Adrian Prantl via llvm-dev <
>>>>>>>>> llvm-dev at lists.llvm.org> wrote:
>>>>>>>>> >>>
>>>>>>>>> >>> The first build where a test fails with similar symptoms has
>>>>>>>>> just one blamelist entry:
>>>>>>>>> >>>
>>>>>>>>> >>>
>>>>>>>>> http://green.lab.llvm.org/green/job/clang-stage1-configure-RA/40391/
>>>>>>>>> >>>
>>>>>>>>> >>>     • Update test_debuginfo.pl script to point to new tree
>>>>>>>>> location. (detail/ViewSVN)
>>>>>>>>> >>> by zturner
>>>>>>>>> >>> -- adrian
>>>>>>>>> >>>
>>>>>>>>> >>>> On Nov 13, 2017, at 3:21 PM, Zachary Turner <
>>>>>>>>> zturner at google.com> wrote:
>>>>>>>>> >>>>
>>>>>>>>> >>>> On the other hand this file hasn't changed recently, but I
>>>>>>>>> have no way to test this as it uses the LLDB code path, which only runs on
>>>>>>>>> OSX.
>>>>>>>>> >>>>
>>>>>>>>> >>>> On Mon, Nov 13, 2017 at 3:19 PM Zachary Turner <
>>>>>>>>> zturner at google.com> wrote:
>>>>>>>>> >>>> I might be missing something, but this doesn't look like me?
>>>>>>>>> >>>>
>>>>>>>>> >>>>
>>>>>>>>> http://green.lab.llvm.org/green/job/clang-stage1-configure-RA/40478/consoleFull#-42777206a1ca8a51-895e-46c6-af87-ce24fa4cd561
>>>>>>>>> >>>>
>>>>>>>>> >>>> PASS: debuginfo-tests :: dbg-arg.c (34886 of 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: ctor.cpp (34887 of 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: ctor.cpp (34888 of 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: aggregate-indirect-arg.cpp (34889 of
>>>>>>>>> 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: aggregate-indirect-arg.cpp (34890 of
>>>>>>>>> 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: dbg-arg.c (34891 of 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: asan.c (34892 of 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: asan.c (34893 of 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: asan-blocks.c (34894 of 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: asan-blocks.c (34895 of 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: nested-struct.cpp (34896 of 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: nested-struct.cpp (34897 of 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: forward-declare-class.cpp (34898 of
>>>>>>>>> 40729)
>>>>>>>>> >>>> PASS: debuginfo-tests :: forward-declare-class.cpp (34899 of
>>>>>>>>> 40729)
>>>>>>>>> >>>> FAIL: debuginfo-tests :: foreach.m (34900 of 40729)
>>>>>>>>> >>>>
>>>>>>>>> >>>> ******************** TEST 'debuginfo-tests :: foreach.m'
>>>>>>>>> FAILED ********************
>>>>>>>>> >>>>
>>>>>>>>> >>>> Script:
>>>>>>>>> >>>> --
>>>>>>>>> >>>>
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/bin/clang
>>>>>>>>> --target=x86_64-apple-darwin15.6.0 -O0 -g
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/tools/clang/test/debuginfo-tests/tests/foreach.m
>>>>>>>>> -c -o
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/tools/clang/test/debuginfo-tests/Output/foreach.m.tmp.o
>>>>>>>>> >>>>
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/bin/clang
>>>>>>>>> --target=x86_64-apple-darwin15.6.0
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/tools/clang/test/debuginfo-tests/Output/foreach.m.tmp.o
>>>>>>>>> -o
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/tools/clang/test/debuginfo-tests/Output/foreach.m.tmp.out
>>>>>>>>> -framework Foundation
>>>>>>>>> >>>>
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/utils/
>>>>>>>>> >>>> test_debuginfo.pl
>>>>>>>>> >>>>
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/tools/clang/test/debuginfo-tests/tests/foreach.m
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/tools/clang/test/debuginfo-tests/Output/foreach.m.tmp.out
>>>>>>>>> >>>> --
>>>>>>>>> >>>> Exit Code: 1
>>>>>>>>> >>>>
>>>>>>>>> >>>> Command Output (stdout):
>>>>>>>>> >>>> --
>>>>>>>>> >>>> Debugger output was:
>>>>>>>>> >>>> imported lldb from:
>>>>>>>>> "/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Versions/A/Resources/Python"
>>>>>>>>> >>>> error: foreach.m.tmp.out debug map object file
>>>>>>>>> '/Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/tools/clang/test/debuginfo-tests/Output/foreach.m.tmp.o'
>>>>>>>>> has changed (actual time is 0x5a0a2528, debug map time is 0x5a0a2526) since
>>>>>>>>> this executable was linked, file will be ignored
>>>>>>>>> >>>> >  break 25
>>>>>>>>> >>>> SBBreakpoint: id = 1, file = '', line = 25, exact_match = 0,
>>>>>>>>> locations = 0
>>>>>>>>> >>>> >  r
>>>>>>>>> >>>> success
>>>>>>>>> >>>> >  po thing
>>>>>>>>> >>>>  = <could not resolve type>
>>>>>>>>> >>>> > quit
>>>>>>>>> >>>>
>>>>>>>>> >>>> --
>>>>>>>>> >>>> Command Output (stderr):
>>>>>>>>> >>>> --
>>>>>>>>> >>>>
>>>>>>>>> >>>>
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/tools/clang/test/debuginfo-tests/tests/foreach.m:11:11:
>>>>>>>>> error: expected string not found in input
>>>>>>>>> >>>>
>>>>>>>>> >>>> // CHECK: aaa
>>>>>>>>> >>>>           ^
>>>>>>>>> >>>>
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/tools/clang/test/debuginfo-tests/Output/foreach.m.gdb.output:1:1:
>>>>>>>>> note: scanning from here
>>>>>>>>> >>>> imported lldb from:
>>>>>>>>> "/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Versions/A/Resources/Python"
>>>>>>>>> >>>> ^
>>>>>>>>> >>>>
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/tools/clang/test/debuginfo-tests/Output/foreach.m.gdb.output:2:211:
>>>>>>>>> note: possible intended match here
>>>>>>>>> >>>> error: foreach.m.tmp.out debug map object file
>>>>>>>>> '/Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/tools/clang/test/debuginfo-tests/Output/foreach.m.tmp.o'
>>>>>>>>> has changed (actual time is 0x5a0a2528, debug map time is 0x5a0a2526) since
>>>>>>>>> this executable was linked, file will be ignored
>>>>>>>>> >>>>
>>>>>>>>> >>>>
>>>>>>>>> >>>>
>>>>>>>>> >>>> On Mon, Nov 13, 2017 at 3:17 PM Adrian Prantl <
>>>>>>>>> aprantl at apple.com> wrote:
>>>>>>>>> >>>> It looks like the bots are still red?
>>>>>>>>> >>>>
>>>>>>>>> >>>> — Adrian
>>>>>>>>> >>>>
>>>>>>>>> >>>>
>>>>>>>>> >>>>> On Nov 10, 2017, at 3:14 PM, Zachary Turner <
>>>>>>>>> zturner at google.com> wrote:
>>>>>>>>> >>>>>
>>>>>>>>> >>>>> Wasn't quite fixed, but it got a lot further this time.
>>>>>>>>> This time there was still an issue in the test_debuginfo.pl
>>>>>>>>> script regarding a hardcoded path to the llgdb.py script.  I think I never
>>>>>>>>> encountered this locally because this codepath only happens on Darwin, and
>>>>>>>>> I was testing on Linux.
>>>>>>>>> >>>>>
>>>>>>>>> >>>>> (As an aside, ugh... Perl...)
>>>>>>>>> >>>>>
>>>>>>>>> >>>>> Regardless, this should be fixed in r317949, and hopefully
>>>>>>>>> that's the last of the issues.  I have to run for a couple of hours, but I
>>>>>>>>> can check on this again in a bit.  But I strongly suspect it will be fixed
>>>>>>>>> now.
>>>>>>>>> >>>>>
>>>>>>>>> >>>>> On Fri, Nov 10, 2017 at 2:51 PM Adrian Prantl <
>>>>>>>>> aprantl at apple.com> wrote:
>>>>>>>>> >>>>>
>>>>>>>>> >>>>>> On Nov 10, 2017, at 2:50 PM, Zachary Turner <
>>>>>>>>> zturner at google.com> wrote:
>>>>>>>>> >>>>>>
>>>>>>>>> >>>>>> I checked in a fix for that already, sorry for the trouble.
>>>>>>>>> I’m waiting for it to cycle
>>>>>>>>> >>>>>
>>>>>>>>> >>>>> awesome. Thanks!
>>>>>>>>> >>>>>
>>>>>>>>> >>>>> -- adrian
>>>>>>>>> >>>>>
>>>>>>>>> >>>>>> On Fri, Nov 10, 2017 at 2:49 PM Adrian Prantl <
>>>>>>>>> aprantl at apple.com> wrote:
>>>>>>>>> >>>>>> It looks like this broke green dragon:
>>>>>>>>> >>>>>>
>>>>>>>>> >>>>>>
>>>>>>>>> http://green.lab.llvm.org/green/job/clang-stage1-configure-RA/40383/console
>>>>>>>>> >>>>>>
>>>>>>>>> >>>>>> llvm-lit:
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/projects/libcxx/utils/libcxx/test/config.py:173:
>>>>>>>>> note: Adding environment variables: {'DYLD_LIBRARY_PATH':
>>>>>>>>> '/Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/./lib',
>>>>>>>>> 'LIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT':
>>>>>>>>> '/Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/projects/libcxx/test/filesystem/Output/dynamic_env'}
>>>>>>>>> >>>>>>
>>>>>>>>> >>>>>> llvm-lit:
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/utils/lit/lit/llvm/config.py:332:
>>>>>>>>> note: using clang:
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/clang-build/bin/clang
>>>>>>>>> >>>>>> llvm-lit:
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/utils/lit/lit/util.py:379:
>>>>>>>>> note: using SDKROOT:
>>>>>>>>> '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk'
>>>>>>>>> >>>>>>
>>>>>>>>> >>>>>> llvm-lit:
>>>>>>>>> /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/utils/lit/lit/TestingConfig.py:101:
>>>>>>>>> fatal: unable to parse config file
>>>>>>>>> '/Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/tools/clang/test/debuginfo-tests/
>>>>>>>>> lit.cfg.py', traceback: Traceback (most recent call last):
>>>>>>>>> >>>>>>   File
>>>>>>>>> "/Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/utils/lit/lit/TestingConfig.py",
>>>>>>>>> line 88, in load_from_path
>>>>>>>>> >>>>>>     exec(compile(data, path, 'exec'), cfg_globals, None)
>>>>>>>>> >>>>>>   File
>>>>>>>>> "/Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/tools/clang/test/debuginfo-tests/
>>>>>>>>> lit.cfg.py", line 36, in <module>
>>>>>>>>> >>>>>>     config.test_source_root =
>>>>>>>>> os.path.join(config.debuginfo_tests_src_root, 'tests')
>>>>>>>>> >>>>>> AttributeError: TestingConfig instance has no attribute
>>>>>>>>> 'debuginfo_tests_src_root'
>>>>>>>>> >>>>>>
>>>>>>>>> >>>>>> FAILED: CMakeFiles/check-all
>>>>>>>>> >>>>>>
>>>>>>>>> >>>>>> -- adrian
>>>>>>>>> >>>>>>
>>>>>>>>> >>>>>> > On Nov 10, 2017, at 1:00 PM, Zachary Turner via llvm-dev <
>>>>>>>>> llvm-dev at lists.llvm.org> wrote:
>>>>>>>>> >>>>>> >
>>>>>>>>> >>>>>> > This is in as of r317925.  I'm keeping an eye out for
>>>>>>>>> failure notifications.  I may or may not need help diagnosing if something
>>>>>>>>> does go wrong (although I'm keeping my fingers crossed)
>>>>>>>>> >>>>>> >
>>>>>>>>> >>>>>> > On Thu, Nov 9, 2017 at 4:05 PM Zachary Turner <
>>>>>>>>> zturner at google.com> wrote:
>>>>>>>>> >>>>>> > Since it's towards the end of the day already, I'll put
>>>>>>>>> this in tomorrow morning around 9 or 10, to make sure I'm around to fix
>>>>>>>>> anything that arises (or revert).
>>>>>>>>> >>>>>> >
>>>>>>>>> >>>>>> >
>>>>>>>>> >>>>>> >
>>>>>>>>> >>>>>> > On Thu, Nov 9, 2017 at 2:53 PM Mike Edwards <
>>>>>>>>> medwards at apple.com> wrote:
>>>>>>>>> >>>>>> > Hi Zach,
>>>>>>>>> >>>>>> > Thanks for doing this extra work to make this lower
>>>>>>>>> impact for the rest of us.  Let’s give it a try and see what happens.
>>>>>>>>> >>>>>> >
>>>>>>>>> >>>>>> > -Mike
>>>>>>>>> >>>>>> >
>>>>>>>>> >>>>>> >
>>>>>>>>> >>>>>> >
>>>>>>>>> >>>>>> >> On Nov 9, 2017, at 13:37, Zachary Turner <
>>>>>>>>> zturner at google.com> wrote:
>>>>>>>>> >>>>>> >>
>>>>>>>>> >>>>>> >> Hi all, I think I've addressed all the concerns here,
>>>>>>>>> and I believe there should be no immediate impact to the current workflow.
>>>>>>>>> with that said, I plan to commit this either later today or early tomorrow
>>>>>>>>> if there are no other concerns.
>>>>>>>>> >>>>>> >>
>>>>>>>>> >>>>>> >> On Tue, Nov 7, 2017 at 12:19 PM Zachary Turner <
>>>>>>>>> zturner at google.com> wrote:
>>>>>>>>> >>>>>> >> I tested this out, and AFAICT nothing will change.  It
>>>>>>>>> will continue to just work if you have it checked out under clang/tests.
>>>>>>>>> It's a bit hard to construct this configuration locally since it requires
>>>>>>>>> moving some files around, and applying half of a CL here and half of a CL
>>>>>>>>> there.  But, AFAICT it works.
>>>>>>>>> >>>>>> >>
>>>>>>>>> >>>>>> >> I'm happy to send you some patches if you want to try
>>>>>>>>> them locally and confirm.
>>>>>>>>> >>>>>> >>
>>>>>>>>> >>>>>> >> I'd like to print out a CMake warning if it detects the
>>>>>>>>> tree under clang/test and just mention that the workflow is deprecated.
>>>>>>>>> Any objections?
>>>>>>>>> >>>>>> >>
>>>>>>>>> >>>>>> >> On Mon, Nov 6, 2017 at 1:49 PM Mike Edwards <
>>>>>>>>> medwards at apple.com> wrote:
>>>>>>>>> >>>>>> >> Thank you Zach.
>>>>>>>>> >>>>>> >>
>>>>>>>>> >>>>>> >>
>>>>>>>>> >>>>>> >>> On Nov 6, 2017, at 13:37, Zachary Turner <
>>>>>>>>> zturner at google.com> wrote:
>>>>>>>>> >>>>>> >>>
>>>>>>>>> >>>>>> >>> I’m going to spend a little time seeing if i can make
>>>>>>>>> the change invisible to the bots so they will continue to work as they do
>>>>>>>>> today.  Will report back after I’ve explored that a bit
>>>>>>>>> >>>>>> >>> On Mon, Nov 6, 2017 at 1:35 PM Mike Edwards <
>>>>>>>>> medwards at apple.com> wrote:
>>>>>>>>> >>>>>> >>>> I'm honestly not opposed to this idea.  It just seems
>>>>>>>>> a shame to do this for purely logistical reasons if most people agree that
>>>>>>>>> the "right" place for debuginfo-tests is outside of the clang tree.
>>>>>>>>> >>>>>> >>>
>>>>>>>>> >>>>>> >>> I totally understand what you are saying here and will
>>>>>>>>> just add that sometimes being part of a larger community means being
>>>>>>>>> willing to do things, sometimes, not exactly the “right” way, due to
>>>>>>>>> logistical reasons.  I am not opposed to what you would like to do, I’m
>>>>>>>>> just furrowing my brow at the timeframe in which to do it.
>>>>>>>>> >>>>>> >>>
>>>>>>>>> >>>>>> >>>>
>>>>>>>>> >>>>>> >>>> That said, I'd still like to hear from ChrisM and
>>>>>>>>> MikeE about why it will take so long, because on the surface it seems like
>>>>>>>>> a low-impact move.
>>>>>>>>> >>>>>> >>>
>>>>>>>>> >>>>>> >>> Past experience has taught me, anything I think is
>>>>>>>>> going to be simple and quick to fix, rarely ever turns out that way.  While
>>>>>>>>> there will be a significant amount of work to change the way our bots work
>>>>>>>>> here at Apple, the work is not impossible to accomplish.  Given the choice,
>>>>>>>>> I would of course prefer an approach such as Paulr has suggested.  The
>>>>>>>>> ability to run things in parallel for a time provides for a much lower
>>>>>>>>> impact change on the entire community.  I think this approach may also give
>>>>>>>>> us some time to decide where the debuginfo-test should fit in the new
>>>>>>>>> mono-repo.  It would be a bummer to do the work necessary to make this
>>>>>>>>> change, only to discover we would have to do it differently in the not too
>>>>>>>>> distant future to accommodate the new mono-repo.
>>>>>>>>> >>>>>> >>>
>>>>>>>>> >>>>>> >>>  Zach, I do not want to be a blocker here.  I just want
>>>>>>>>> to make sure we have explored all of the options to make sure we are not
>>>>>>>>> missing a lower impact approach.  I also want to make sure we are not doing
>>>>>>>>> something that could wait until we migrate to the mono-repo next year.
>>>>>>>>> >>>>>> >>>
>>>>>>>>> >>>>>> >>> Thanks,
>>>>>>>>> >>>>>> >>> Mike
>>>>>>>>> >>>>>> >>
>>>>>>>>> >>>>>> >
>>>>>>>>> >>>>>> > _______________________________________________
>>>>>>>>> >>>>>> > LLVM Developers mailing list
>>>>>>>>> >>>>>> > llvm-dev at lists.llvm.org
>>>>>>>>> >>>>>> > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>>>>>>>> >>>>>>
>>>>>>>>> >>>>>
>>>>>>>>> >>>>
>>>>>>>>> >>>
>>>>>>>>> >>> _______________________________________________
>>>>>>>>> >>> LLVM Developers mailing list
>>>>>>>>> >>> llvm-dev at lists.llvm.org
>>>>>>>>> >>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>>>>>>>> >>
>>>>>>>>> >
>>>>>>>>> > _______________________________________________
>>>>>>>>> > LLVM Developers mailing list
>>>>>>>>> > llvm-dev at lists.llvm.org
>>>>>>>>> > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>>>>>>>>
>>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>> LLVM Developers mailing list
>>>>>> llvm-dev at lists.llvm.org
>>>>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>>>>>
>>>>>
>>>
>
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