diff mbox

Build problems on arm-linux-gnueabihf

Message ID DUB118-W3976CBD40A79D5C2CFE23BE4250@phx.gbl
State New
Headers show

Commit Message

Bernd Edlinger May 28, 2014, 8:22 p.m. UTC 
Honza,

I try to build this configuration:

../gcc-trunk/configure --prefix=/home/ed/gnu/arm-linux-gnueabihf-linux64 --target=arm-linux-gnueabihf --enable-languages=c,c++,fortran,ada --with-arch=armv7-a --with-tune=cortex-a9 --with-fpu=vfpv3-d16 --with-float=hard

but make fails:

libtool: compile:  /home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/./gcc/xgcc -shared-libgcc -B/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/./gcc -nostdinc++ -L/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/src -L/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/src/.libs -L/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/libsupc++/.libs -B/home/ed/gnu/arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/bin/ -B/home/ed/gnu/arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/lib/ -isystem /home/ed/gnu/arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/include -isystem /home/ed/gnu/arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/sys-include -I/home/ed/gnu/gcc-trunk/libstdc++-v3/../libgcc -I/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/include/arm-linux-gnueabihf -I/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/include -I/home/ed/gnu/gcc-trunk/libstdc++-v3/libsupc++ -D_GLIBCXX_SHARED -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi -fdiagnostics-show-location=once -ffunction-sections -fdata-sections -frandom-seed=strstream.lo -g -O2 -D_GNU_SOURCE -I/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/include/backward -Wno-deprecated -c ../../../../../gcc-trunk/libstdc++-v3/src/c++98/strstream.cc  -fPIC -DPIC -D_GLIBCXX_SHARED -o strstream.o
In file included from ../../../../../gcc-trunk/libstdc++-v3/src/c++98/strstream.cc:44:0:
/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/include/backward/strstream:126:9: error: std::istrstream::_ZTVSt10istrstream.localalias.0 causes a section type conflict with std::istrstream::_ZTVSt10istrstream
   class istrstream : public basic_istream<char>
         ^
/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/include/backward/strstream:126:9: note: ‘std::istrstream::_ZTVSt10istrstream’ was declared here
/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/include/backward/strstream:143:9: error: std::ostrstream::_ZTVSt10ostrstream.localalias.1 causes a section type conflict with std::ostrstream::_ZTVSt10ostrstream
   class ostrstream : public basic_ostream<char>
         ^
/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/include/backward/strstream:143:9: note: ‘std::ostrstream::_ZTVSt10ostrstream’ was declared here
/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/include/backward/strstream:160:9: error: std::strstream::_ZTVSt9strstream.localalias.2 causes a section type conflict with std::strstream::_ZTVSt9strstream
   class strstream : public basic_iostream<char>
         ^
/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/include/backward/strstream:160:9: note: ‘std::strstream::_ZTVSt9strstream’ was declared here
make[5]: *** [strstream.lo] Fehler 1
make[5]: Verlasse Verzeichnis '/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/src/c++98'
make[4]: *** [all-recursive] Fehler 1
make[4]: Verlasse Verzeichnis '/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3/src'
make[3]: *** [all-recursive] Fehler 1
make[3]: Verlasse Verzeichnis '/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3'
make[2]: *** [all] Fehler 2
make[2]: Verlasse Verzeichnis '/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64/arm-linux-gnueabihf/libstdc++-v3'
make[1]: *** [all-target-libstdc++-v3] Fehler 2
make[1]: Verlasse Verzeichnis '/home/ed/gnu/gcc-build-arm-linux-gnueabihf-linux64'
make: *** [all] Fehler 2



When I debug and set a breakpoint in varasm.c line 314 it looks as if
the flag SECTION_RELRO is different. This flag is set in
categorize_decl_for_section where it depends on
TREE_CODE(decl), and if it is a VAR_DECL also on 
TREE_READONLY (decl)
TREE_SIDE_EFFECTS (decl)
DECL_INITIAL (decl)
TREE_CONSTANT (DECL_INITIAL (decl))
DECL_THREAD_LOCAL_P (decl)

maybe also on CONST_CAST_TREE (decl) in case of asan
and various target hooks.


now, since the error message names a ".localalias."

I see your checkin from monday at the same area:

r210919 | hubicka | 2014-05-26 02:50:24 +0200 (Mo, 26. Mai 2014) | 2 Zeilen

        * symtab.c (symtab_nonoverwritable_alias): Copy READONLY flag for variables.

and I wonder if there are more flags missing:



This makes the build succeed for me, but I am not really sure, if that is
the right direction to fix this, and if maybe even more flags may be missing,
for instance: DECL_THREAD_LOCAL_P or CONST_CAST_TREE?

What do you think?



Bernd.
diff mbox

Patch

Index: symtab.c
===================================================================
--- symtab.c    (Revision 211028)
+++ symtab.c    (Arbeitskopie)
@@ -1165,6 +1165,8 @@  symtab_nonoverwritable_alias (symtab_node *node)
   else
     {
       TREE_READONLY (new_decl) = TREE_READONLY (node->decl);
+      TREE_SIDE_EFFECTS (new_decl) = TREE_SIDE_EFFECTS (node->decl);
+      DECL_INITIAL (new_decl) = DECL_INITIAL (node->decl);
       new_node = varpool_create_variable_alias (new_decl, node->decl);
     }
   symtab_resolve_alias (new_node, node);