http://sourceware.org/bugzilla/show_bug.cgi?id=12557
Summary: Firefox fails to build with -flto and --as-needed
LDFLAGS
Product: binutils
Version: 2.22 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: binutils
AssignedTo: unassig...@sources.redhat.com
ReportedBy: cryptooctopl...@gmail.com
Please see also:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375#c53
Firefox 4 fails to build with the following flags:
CXXFLAGS="-march=native -fpermissive -flto=4 -fuse-linker-plugin
-fwhole-program"
LDFLAGS="-Wl,-O1,--hash-style=gnu,--as-needed,--no-keep-memory"
c++ -o xpcshell -fno-rtti -fno-exceptions -Wall -Wpointer-arith
-Woverloaded-virtual -Wsynth -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor
-Wcast-align -Wno-invalid-offsetof -Wno-variadic-macros -Werror=return-type
-Wno-long-long -march=native -fpermissive -flto=4 -fuse-linker-plugin
-fwhole-program -fno-strict-aliasing -fshort-wchar -pthread -pipe -DNDEBUG
-DTRIMMED -O3 xpcshell.o -lpthread
-Wl,-O1,--hash-style=gnu,--as-needed,--no-keep-memory
-Wl,-rpath-link,/var/tmp/mozilla-central/moz-build-dir/dist/bin
-Wl,-rpath-link,/usr/lib -L../../../../dist/bin -L../../../../dist/lib
../../../../dist/lib/libxpcomglue_s.a
-L/var/tmp/mozilla-central/moz-build-dir/dist/bin -lxpcom -lmozalloc -lxul
-L/var/tmp/mozilla-central/moz-build-dir/dist/bin -lxpcom -lmozalloc -lxul
-Wl,-R/usr/lib64 -L/usr/lib64 -lplds4 -lplc4 -lnspr4 -lpthread -ldl -ldl
../../../../dist/bin/libxul.so: undefined reference to `PR_smprintf_free'
../../../../dist/bin/libxul.so: undefined reference to `PR_SetEnv'
../../../../dist/bin/libxul.so: undefined reference to `PR_Now'
../../../../dist/bin/libxul.so: undefined reference to `PR_GetErrorText'
../../../../dist/bin/libxul.so: undefined reference to `PR_FindFunctionSymbol'
../../../../dist/bin/libxul.so: undefined reference to `PR_PushIOLayer'
../../../../dist/bin/libxul.so: undefined reference to `PR_ntohs'
../../../../dist/bin/libxul.so: undefined reference to `PR_FormatTimeUSEnglish'
../../../../dist/bin/libxul.so: undefined reference to `PR_MemMap'
../../../../dist/bin/libxul.so: undefined reference to `PR_LocalTimeParameters'
../../../../dist/bin/libxul.so: undefined reference to `PR_GetDefaultIOMethods'
../../../../dist/bin/libxul.so: undefined reference to `PR_ReadDir'
../../../../dist/bin/libxul.so: undefined reference to `PR_SetPollableEvent'
../../../../dist/bin/libxul.so: undefined reference to `PR_FindSymbol'
/usr/lib/libssl3.so: undefined reference to `PR_OpenAnonFileMap'
/usr/lib/libssl3.so: undefined reference to `PR_ExportFileMapAsString'
../../../../dist/bin/libxul.so: undefined reference to `PR_Delete'
../../../../dist/bin/libxul.so: undefined reference to `PR_AtomicSet'
/usr/lib/libnss3.so: undefined reference to `PR_NewRWLock'
../../../../dist/bin/libxul.so: undefined reference to `PR_SetNetAddr'
...
It builds fine without the "--as-needed" LDFLAG.
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