[cfe-dev] compiling plugins

[Nico Weber]

This is getting pretty off-topic for this list :-) You can ask
questions about the chromium clang plugin at clang at chromium.org.

Nico

(ps: Your command line is missing "-Xclang
skip-virtuals-in-implementations" right after
-plugin-arg-find-bad-constructs. build/common.gypi /
tools/clang/scripts/plugin_flags.sh should add that automatically, and
it seems to work fine on the bots.)

On Fri, Jul 13, 2012 at 3:58 PM, Thiago Farina <tfarina at chromium.org> wrote:
> On Fri, Jul 13, 2012 at 10:33 AM, Thiago Farina <tfarina at chromium.org> wrote:
>> On Fri, Jul 13, 2012 at 10:06 AM, Thiago Farina <tfarina at chromium.org> wrote:
>>> On Fri, Jul 13, 2012 at 6:10 AM, Thiago Farina <tfarina at chromium.org> wrote:
>>>>> you can use tools/clang/scripts/update.sh --force-local-build
>>>>
>>>>
>>>> For some reason that I do not know, this does not produce a good clang
>>>> executable in my 32bit laptop. Hence I'm building clang directly from the
>>>> official git mirror, outside of chromium tree.
>>>
>>> Looks like I was mistaken, I think the problem was with my
>>> configuration and/or ninja, not chromium or clang.
>>>
>> Got it now.
>>
>> But...
>>
>> [3/109] clang++ -B/usr/local/gold/bin -MMD -MF
>> obj/base/debug/base.trace_event.o.d -D_FILE_OFFSET_BITS=64
>> -DCHROMIUM_BUILD -DUSE_NSS=1 -DENABLE_ONE_CLICK_SIGNIN
>> -DGTK_DISABLE_SINGLE_INCLUDES=1 -DENABLE_REMOTING=1 -DENABLE_WEBRTC=1
>> -DENABLE_CONFIGURATION_POLICY -DENABLE_INPUT_SPEECH
>> -DENABLE_NOTIFICATIONS -DENABLE_GPU=1 -DENABLE_EGLIMAGE=1 -DUSE_SKIA=1
>> -DENABLE_TASK_MANAGER=1 -DENABLE_WEB_INTENTS=1 -DENABLE_EXTENSIONS=1
>> -DENABLE_PLUGIN_INSTALLATION=1 -DENABLE_PROTECTOR_SERVICE=1
>> -DENABLE_SESSION_SERVICE=1 -DENABLE_THEMES=1 -DENABLE_BACKGROUND=1
>> -DENABLE_PROMO_RESOURCE_SERVICE=1 -DENABLE_AUTOMATION=1
>> -DENABLE_PRINTING=1 -DENABLE_CAPTIVE_PORTAL_DETECTION=1
>> -DUSE_SYMBOLIZE -D__STDC_FORMAT_MACROS -DBASE_IMPLEMENTATION
>> -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DWTF_USE_DYNAMIC_ANNOTATIONS=1
>> -D_DEBUG -I../.. -Werror -pthread -fno-exceptions -fno-strict-aliasing
>> -Wall -Wno-unused-parameter -Wno-missing-field-initializers
>> -fvisibility=hidden -pipe -fPIC -Wheader-hygiene -Wno-unused-function
>> -Wno-char-subscripts -Wno-unnamed-type-template-args
>> -Wno-c++11-extensions -Wno-covered-switch-default -Xclang -load
>> -Xclang /home/tfarina/chromium/src/tools/clang/scripts/../../../third_party/llvm-build/Release+Asserts/lib/libFindBadConstructs.so
>> -Xclang -add-plugin -Xclang find-bad-constructs -Xclang
>> -plugin-arg-find-bad-constructs -fcolor-diagnostics -Wno-write-strings
>> -pthread -I/usr/include/glib-2.0
>> -I/usr/lib/i386-linux-gnu/glib-2.0/include -pthread
>> -I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include
>> -I/usr/include/atk-1.0 -I/usr/include/pango-1.0
>> -I/usr/include/gio-unix-2.0/ -I/usr/include/freetype2
>> -I/usr/include/libpng12 -I/usr/include/gtk-2.0
>> -I/usr/lib/gtk-2.0/include -I/usr/include/cairo
>> -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/pixman-1
>> -Wexit-time-destructors -m32 -mmmx -march=pentium4 -msse2 -O0 -g
>> -fno-rtti -fno-threadsafe-statics -fvisibility-inlines-hidden
>> -Wsign-compare  -c ../../base/debug/trace_event.cc -o
>> obj/base/debug/base.trace_event.o
>> Unknown argument: -o
>> Unknown argument: -o
>>
>> Just wondering why it's saying "unknown argument".
>>
>> $ clang --version # it's in ./third_party/llvm-build/Release+Asserts/bin/
>> clang version 3.2 (trunk 159409)
>> Target: i386-pc-linux-gnu
>> Thread model: posix
>>
>> So instead of putting the .o file in out/Debug/obj/base/files/, they
>> are in base/*.o
>>
>> The way I compiled was:
>>
>> $ ninja -v -C out/Debug/ base
>>
> This seems to be related to clang plugins, this is happening when
> running with GYP_DEFINES="clang=1 clang_use_chrome_plugins=1"
> ./build/gyp_chromium. When running without these flags it doesn't
> complain about the -o argument.
>
> --
> Thiago