[Lldb-commits] [lldb] r323450 - Use test-specific module caches to avoid stale header conflicts

Vedant Kumar via lldb-commits lldb-commits at lists.llvm.org
Thu Jan 25 13:02:57 PST 2018


Taking a look. It may be another instance of a test not actually running with -fmodules in the -gmodules configuration.

vedant

> On Jan 25, 2018, at 12:40 PM, Davide Italiano <dccitaliano at gmail.com> wrote:
> 
> The bot started failing recently, and this commit seems the most likely culprit.
> 
> http://lab.llvm.org:8080/green/view/LLDB/job/lldb-xcode/4513/
> 
> 
> Can you please take a look, Vedant?
> 
> Thanks,
> 
> --
> Davide
> 
> On Thu, Jan 25, 2018 at 10:01 AM, Vedant Kumar via lldb-commits
> <lldb-commits at lists.llvm.org> wrote:
>> Author: vedantk
>> Date: Thu Jan 25 10:01:27 2018
>> New Revision: 323450
>> 
>> URL: http://llvm.org/viewvc/llvm-project?rev=323450&view=rev
>> Log:
>> Use test-specific module caches to avoid stale header conflicts
>> 
>> Stale global module caches cause problems for the bots. The modules
>> become invalid when clang headers are updated by version control, and
>> tests which use these modules fail to compile, e.g:
>> 
>>  fatal error: file '.../__stddef_max_align_t.h' has been modified since the module file '/var/.../Darwin.pcm' was built
>>  note: please rebuild precompiled header '/var/.../Darwin.pcm'
>> 
>> Eventually we should transition to having just a single module cache to speed
>> tests up. This patch should be just enough to fix the spurious bot failures due
>> to stale caches.
>> 
>> rdar://36479805, also related to llvm.org/PR36048
>> 
>> Differential Revision: https://reviews.llvm.org/D42277
>> 
>> Modified:
>>    lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-cpp/TestDataFormatterCpp.py
>>    lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-globals/TestDataFormatterGlobals.py
>>    lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/list/TestDataFormatterLibcxxList.py
>>    lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/vector/TestDataFormatterLibcxxVector.py
>>    lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-auto-import/Makefile
>>    lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-auto-import/TestModulesAutoImport.py
>>    lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-incomplete/Makefile
>>    lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-incomplete/TestIncompleteModules.py
>>    lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-inline-functions/Makefile
>>    lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-inline-functions/TestModulesInlineFunctions.py
>>    lldb/trunk/packages/Python/lldbsuite/test/make/Makefile.rules
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-cpp/TestDataFormatterCpp.py
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-cpp/TestDataFormatterCpp.py?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-cpp/TestDataFormatterCpp.py (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-cpp/TestDataFormatterCpp.py Thu Jan 25 10:01:27 2018
>> @@ -26,6 +26,8 @@ class CppDataFormatterTestCase(TestBase)
>>     @expectedFailureAll(
>>         oslist=["windows"],
>>         bugnumber="llvm.org/pr24462: Data formatters have problems on Windows")
>> +    @skipIf(debug_info="gmodules",
>> +            bugnumber="https://bugs.llvm.org/show_bug.cgi?id=36048")
>>     def test_with_run_command(self):
>>         """Test that that file and class static variables display correctly."""
>>         self.build()
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-globals/TestDataFormatterGlobals.py
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-globals/TestDataFormatterGlobals.py?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-globals/TestDataFormatterGlobals.py (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-globals/TestDataFormatterGlobals.py Thu Jan 25 10:01:27 2018
>> @@ -9,6 +9,7 @@ import os
>> import time
>> import lldb
>> from lldbsuite.test.lldbtest import *
>> +from lldbsuite.test.decorators import *
>> import lldbsuite.test.lldbutil as lldbutil
>> 
>> 
>> @@ -22,6 +23,8 @@ class GlobalsDataFormatterTestCase(TestB
>>         # Find the line number to break at.
>>         self.line = line_number('main.cpp', '// Set break point at this line.')
>> 
>> +    @skipIf(debug_info="gmodules",
>> +            bugnumber="https://bugs.llvm.org/show_bug.cgi?id=36048")
>>     def test_with_run_command(self):
>>         """Test that that file and class static variables display correctly."""
>>         self.build()
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/list/TestDataFormatterLibcxxList.py
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/list/TestDataFormatterLibcxxList.py?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/list/TestDataFormatterLibcxxList.py (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/list/TestDataFormatterLibcxxList.py Thu Jan 25 10:01:27 2018
>> @@ -31,6 +31,8 @@ class LibcxxListDataFormatterTestCase(Te
>>                                  '// Set fourth break point at this line.')
>> 
>>     @add_test_categories(["libc++"])
>> +    @skipIf(debug_info="gmodules",
>> +            bugnumber="https://bugs.llvm.org/show_bug.cgi?id=36048")
>>     def test_with_run_command(self):
>>         """Test that that file and class static variables display correctly."""
>>         self.build()
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/vector/TestDataFormatterLibcxxVector.py
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/vector/TestDataFormatterLibcxxVector.py?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/vector/TestDataFormatterLibcxxVector.py (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/vector/TestDataFormatterLibcxxVector.py Thu Jan 25 10:01:27 2018
>> @@ -18,6 +18,8 @@ class LibcxxVectorDataFormatterTestCase(
>>     mydir = TestBase.compute_mydir(__file__)
>> 
>>     @add_test_categories(["libc++"])
>> +    @skipIf(debug_info="gmodules",
>> +            bugnumber="https://bugs.llvm.org/show_bug.cgi?id=36048")
>>     def test_with_run_command(self):
>>         """Test that that file and class static variables display correctly."""
>>         self.build()
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-auto-import/Makefile
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-auto-import/Makefile?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-auto-import/Makefile (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-auto-import/Makefile Thu Jan 25 10:01:27 2018
>> @@ -1,6 +1,6 @@
>> LEVEL = ../../../make
>> OBJC_SOURCES := main.m
>> 
>> -CFLAGS += -fmodules -gmodules -g
>> +CFLAGS += $(MANDATORY_MODULE_BUILD_CFLAGS)
>> 
>> include $(LEVEL)/Makefile.rules
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-auto-import/TestModulesAutoImport.py
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-auto-import/TestModulesAutoImport.py?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-auto-import/TestModulesAutoImport.py (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-auto-import/TestModulesAutoImport.py Thu Jan 25 10:01:27 2018
>> @@ -26,7 +26,7 @@ class ObjCModulesAutoImportTestCase(Test
>>         self.line = line_number('main.m', '// Set breakpoint 0 here.')
>> 
>>     @skipUnlessDarwin
>> -    @skipIf(macos_version=["<", "10.12"])
>> +    @skipIf(macos_version=["<", "10.12"], debug_info=no_match(["gmodules"]))
>>     def test_expr(self):
>>         self.build()
>>         exe = self.getBuildArtifact("a.out")
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-incomplete/Makefile
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-incomplete/Makefile?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-incomplete/Makefile (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-incomplete/Makefile Thu Jan 25 10:01:27 2018
>> @@ -4,5 +4,5 @@ OBJC_SOURCES := main.m myModule.m
>> 
>> include $(LEVEL)/Makefile.rules
>> 
>> -CFLAGS += -fmodules -I$(PWD)
>> +CFLAGS += $(MANDATORY_MODULE_BUILD_CFLAGS) -I$(PWD)
>> LDFLAGS += -framework Foundation
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-incomplete/TestIncompleteModules.py
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-incomplete/TestIncompleteModules.py?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-incomplete/TestIncompleteModules.py (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-incomplete/TestIncompleteModules.py Thu Jan 25 10:01:27 2018
>> @@ -24,7 +24,7 @@ class IncompleteModulesTestCase(TestBase
>> 
>>     @skipUnlessDarwin
>>     @unittest2.expectedFailure("rdar://20416388")
>> -    @skipIf(macos_version=["<", "10.12"])
>> +    @skipIf(macos_version=["<", "10.12"], debug_info=no_match(["gmodules"]))
>>     def test_expr(self):
>>         self.build()
>>         exe = self.getBuildArtifact("a.out")
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-inline-functions/Makefile
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-inline-functions/Makefile?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-inline-functions/Makefile (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-inline-functions/Makefile Thu Jan 25 10:01:27 2018
>> @@ -6,4 +6,4 @@ OBJC_SOURCES := main.m
>> 
>> include $(LEVEL)/Makefile.rules
>> 
>> -CFLAGS += -fmodules -I$(PWD)
>> +CFLAGS += $(MANDATORY_MODULE_BUILD_CFLAGS) -I$(PWD)
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-inline-functions/TestModulesInlineFunctions.py
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-inline-functions/TestModulesInlineFunctions.py?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-inline-functions/TestModulesInlineFunctions.py (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/lang/objc/modules-inline-functions/TestModulesInlineFunctions.py Thu Jan 25 10:01:27 2018
>> @@ -27,7 +27,7 @@ class ModulesInlineFunctionsTestCase(Tes
>>         self.line = line_number('main.m', '// Set breakpoint here.')
>> 
>>     @skipUnlessDarwin
>> -    @skipIf(macos_version=["<", "10.12"])
>> +    @skipIf(macos_version=["<", "10.12"], debug_info=no_match(["gmodules"]))
>>     def test_expr(self):
>>         self.build()
>>         exe = self.getBuildArtifact("a.out")
>> 
>> Modified: lldb/trunk/packages/Python/lldbsuite/test/make/Makefile.rules
>> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/make/Makefile.rules?rev=323450&r1=323449&r2=323450&view=diff
>> ==============================================================================
>> --- lldb/trunk/packages/Python/lldbsuite/test/make/Makefile.rules (original)
>> +++ lldb/trunk/packages/Python/lldbsuite/test/make/Makefile.rules Thu Jan 25 10:01:27 2018
>> @@ -237,13 +237,15 @@ ifeq "$(MAKE_DWO)" "YES"
>>        CFLAGS += -gsplit-dwarf
>> endif
>> 
>> +CLANG_MODULE_CACHE_DIR := module-cache
>> +
>> +MANDATORY_MODULE_BUILD_CFLAGS := -fmodules -gmodules -fmodules-cache-path=$(CLANG_MODULE_CACHE_DIR)
>> +
>> ifeq "$(MAKE_GMODULES)" "YES"
>> -       CFLAGS += -fmodules -gmodules
>> +       CFLAGS += $(MANDATORY_MODULE_BUILD_CFLAGS)
>> endif
>> 
>> -CXXFLAGS += -std=c++11
>> -# FIXME: C++ modules aren't supported on all platforms.
>> -CXXFLAGS += $(subst -fmodules,, $(CFLAGS))
>> +CXXFLAGS += -std=c++11 $(CFLAGS)
>> LD = $(CC)
>> LDFLAGS ?= $(CFLAGS)
>> LDFLAGS += $(LD_EXTRAS) $(ARCH_LDFLAGS)
>> @@ -636,7 +638,7 @@ endif
>> dsym:  $(DSYM)
>> all:   $(EXE) $(DSYM)
>> clean::
>> -       $(RM) $(OBJECTS) $(PREREQS) $(PREREQS:.d=.d.tmp) $(DWOS) $(ARCHIVE_NAME) $(ARCHIVE_OBJECTS)
>> +       $(RM) -rf $(OBJECTS) $(PREREQS) $(PREREQS:.d=.d.tmp) $(DWOS) $(ARCHIVE_NAME) $(ARCHIVE_OBJECTS) $(CLANG_MODULE_CACHE_DIR)
>> ifneq "$(DYLIB_NAME)" ""
>>        $(RM) -r $(DYLIB_FILENAME).dSYM
>>        $(RM) $(DYLIB_OBJECTS) $(DYLIB_PREREQS) $(DYLIB_PREREQS:.d=.d.tmp) $(DYLIB_DWOS) $(DYLIB_FILENAME) $(DYLIB_FILENAME).debug
>> 
>> 
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