1318306 - Build process is stopped after creating libjs_static.a - gcc 6.x related ?

Status: RESOLVED DUPLICATE of bug 1317764

(Firefox Build System :: General, defect)

Description

[Frederic Bezies]

I cannot get Mozilla Firefox (trunk version) to be build.

Besides bug 1316653, build process goes a little further, but is stopped right after creating libjs_static.a

Here is what I get :

20:54.03 /home/fred/logs/fox/objdir-fx/dist/include/mozilla/Casting.h:51:3: attention : ‘result’ may be used uninitialized in this function [-Wmaybe-uninitialized]
20:54.03    u.mFrom = aFrom;
20:54.03    ^
20:54.03 In file included from /home/fred/logs/fox/objdir-fx/js/src/Unified_cpp_js_src39.cpp:47:0:
20:54.03 /home/fred/logs/fox/src/js/src/wasm/WasmTextToBinary.cpp:1898:11: note : ‘result’ was declared here
20:54.04      Float result;
20:54.04            ^~~~~~
21:40.96 libjs_static.a
21:41.68 make[3]: *** [/home/fred/logs/fox/src/config/recurse.mk:33: compile] Error 2
21:41.68 make[2]: *** [/home/fred/logs/fox/src/config/rules.mk:523: default] Error 2
21:41.68 make[1]: *** [/home/fred/logs/fox/src/client.mk:415: realbuild] Error 2
21:41.68 make: *** [client.mk:170: build] Error 2
21:41.69 0 compiler warnings present.
21:41.74 ccache (direct) hit rate: 0.0%; (preprocessed) hit rate: 1.8%; miss rate: 98.2%

Could it be a side effect of commits for bug 1316651 on WasmTextToBinary.cpp ?

Just guessing of course.

Could be also a gcc 6.x bug :)

Comment 1

[(not currently active) Ted Mielczarek]

Can you attach or pastebin more of your compile log? I suspect there's a compiler error there, it's just farther back in the log.

Comment 2

[Frederic Bezies]

(In reply to Ted Mielczarek [:ted.mielczarek] from comment #1)
> Can you attach or pastebin more of your compile log? I suspect there's a
> compiler error there, it's just farther back in the log.

Of course. I will try again asap and paste the log. I went up back to 3 minutes before the crash and did not notice anything special.

Comment 3

[Frederic Bezies]

Nailed it?

Here is the starting error which leads to the crash : 

In the directory  /home/fred/logs/fox/objdir-fx/media/webrtc/signaling/fuzztest
The following command failed to execute properly:
/usr/bin/ccache /usr/bin/g++ -std=gnu++11 -o sdp_file_parser.o -c -I/home/fred/logs/fox/objdir-fx/dist/system_wrappers -include /home/fred/logs/fox/src/config/gcc_hidden.h -DNDEBUG=1 -DTRIMMED=1 -DMOZ_NO_MOZALLOC -DSIP_OS_LINUX -DXPCOM_GLUE -DMOZ_HAS_MOZGLUE -I/home/fred/logs/fox/src/media/webrtc/signaling/fuzztest -I/home/fred/logs/fox/objdir-fx/media/webrtc/signaling/fuzztest -I/home/fred/logs/fox/src/media/webrtc -I/home/fred/logs/fox/src/media/mtransport -I/home/fred/logs/fox/src/media/webrtc/signaling/src/common/browser_logging -I/home/fred/logs/fox/objdir-fx/dist/include -I/home/fred/logs/fox/objdir-fx/dist/include/nspr -I/home/fred/logs/fox/objdir-fx/dist/include/nss -fPIC -DMOZILLA_CLIENT -include /home/fred/logs/fox/objdir-fx/mozilla-config.h -MD -MP -MF .deps/sdp_file_parser.o.pp -Wall -Wc++11-compat -Wempty-body -Wignored-qualifiers -Woverloaded-virtual -Wpointer-arith -Wsign-compare -Wtype-limits -Wunreachable-code -Wwrite-strings -Wno-invalid-offsetof -Wc++14-compat -Wno-error=maybe-uninitialized -Wno-error=deprecated-declarations -Wno-error=array-bounds -fno-exceptions -fno-strict-aliasing -fno-rtti -ffunction-sections -fdata-sections -fno-exceptions -fno-math-errno -pthread -pipe -freorder-blocks -Os -fomit-frame-pointer /home/fred/logs/fox/src/media/webrtc/signaling/fuzztest/sdp_file_parser.cpp

Comment 4

[Frederic Bezies]

Related to disable-tests once again : https://bugzilla.mozilla.org/show_bug.cgi?id=1317764

So, duplicate of it or not ?

Comment 5

[Frederic Bezies]

Was a duplicate of 1317764.

But now, I'm facing bug 1318195... Sigh :(