Re: bug with binutils and gcc5

[Rodriguez Bahena, Victor]

On Sat, 2015-05-23 at 12:27 +0930, Alan Modra wrote:
> On Fri, May 22, 2015 at 08:43:16PM +0000, Rodriguez Bahena, Victor wrote:
> > Hi team 
> > 
> > I am building binutils with gcc 5 ( also running the test suite ) and
> > found an issue in these two tests: 
> > 
> > FAIL: Run with libnew1a.so
> > FAIL: Run with libnew1b.so
> 
> Look in ld.log to see why the failure is occurring.
> 

Thanks for the direction, this is the ld.log of the failing tests: 

g++  -B/builddir/build/BUILD/binutils-2.25/ld/tmpdir/ld/
-I/builddir/build/BUILD/binutils-2.25
/ld/testsuite/ld-elf -O2 -g2 -feliminate-unused-debug-types  -pipe -Wall
-Wp,-D_FORTIFY_SOURCE
=2 -fexceptions -fstack-protector --param=ssp-buffer-size=32 -Wformat
-Wformat-security -Wl,--
copy-dt-needed-entries -m64 -march=ivybridge  -mtune=native
-fasynchronous-unwind-tables -Wp,-
D_REENTRANT -ftree-loop-distribute-patterns -Wl,-z -Wl,now -Wl,-z
-Wl,relro -fno-semantic-inte
rposition -malign-data=abi   -c -O2 -g2 -feliminate-unused-debug-types
-pipe -Wall -Wp,-D_FOR
TIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=32
-Wformat -Wformat-secu
rity -Wl,--copy-dt-needed-entries -m64 -march=ivybridge  -mtune=native
-fasynchronous-unwind-t
ables -Wp,-D_REENTRANT -ftree-loop-distribute-patterns -Wl,-z -Wl,now
-Wl,-z -Wl,relro -fno-se
mantic-interposition -malign-data=abi
-c /builddir/build/BUILD/binutils-2.25/ld/testsuite/ld-
elf/dl5.cc -o tmpdir/dl5.o
Executing on host: sh -c {g++
-B/builddir/build/BUILD/binutils-2.25/ld/tmpdir/ld/ -I/builddir
/build/BUILD/binutils-2.25/ld/testsuite/ld-elf -O2 -g2
-feliminate-unused-debug-types  -pipe -
Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=32 -Wforma
t -Wformat-security -Wl,--copy-dt-needed-entries -m64 -march=ivybridge
-mtune=native -fasynch
ronous-unwind-tables -Wp,-D_REENTRANT -ftree-loop-distribute-patterns
-Wl,-z -Wl,now -Wl,-z -W
l,relro -fno-semantic-interposition -malign-data=abi   -c -O2 -g2
-feliminate-unused-debug-typ
es  -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size
=32 -Wformat -Wformat-security -Wl,--copy-dt-needed-entries -m64
-march=ivybridge  -mtune=nati
ve -fasynchronous-unwind-tables -Wp,-D_REENTRANT
-ftree-loop-distribute-patterns -Wl,-z -Wl,no
w -Wl,-z -Wl,relro -fno-semantic-interposition -malign-data=abi
-c /builddir/build/BUILD/binu
tils-2.25/ld/testsuite/ld-elf/dl5.cc -o tmpdir/dl5.o 2>&1}  /dev/null
ld.tmp (timeout = 300)
spawn [open ...]
g++ -B/builddir/build/BUILD/binutils-2.25/ld/tmpdir/ld/
-L/usr/x86_64-generic-linux/lib64 -L
/usr/lib64 -L/usr/local/lib64 -L/lib64 -L/usr/x86_64-generic-linux/lib
-L/usr/local/lib -L/lib
 -L/usr/lib  -o tmpdir/dl5a
-L/builddir/build/BUILD/binutils-2.25/ld/testsuite/ld-elf tmpdir/l
ibnew1a.so tmpdir/dl5.o
Executing on host: sh -c {g++
-B/builddir/build/BUILD/binutils-2.25/ld/tmpdir/ld/   -L/usr/x86
_64-generic-linux/lib64 -L/usr/lib64 -L/usr/local/lib64 -L/lib64
-L/usr/x86_64-generic-linux/l
ib -L/usr/local/lib -L/lib -L/usr/lib  -o tmpdir/dl5a
-L/builddir/build/BUILD/binutils-2.25/ld
/testsuite/ld-elf tmpdir/libnew1a.so tmpdir/dl5.o 2>&1}  /dev/null
ld.tmp (timeout = 300)
spawn [open ...]
Running: tmpdir/dl5a > tmpdir/dl5a.out
child process exited abnormally
FAIL: Run with libnew1a.so


g++  -B/builddir/build/BUILD/binutils-2.25/ld/tmpdir/ld/
-I/builddir/build/BUILD/binutils-2.25
/ld/testsuite/ld-elf -O2 -g2 -feliminate-unused-debug-types  -pipe -Wall
-Wp,-D_FORTIFY_SOURCE
=2 -fexceptions -fstack-protector --param=ssp-buffer-size=32 -Wformat
-Wformat-security -Wl,--
copy-dt-needed-entries -m64 -march=ivybridge  -mtune=native
-fasynchronous-unwind-tables -Wp,-
D_REENTRANT -ftree-loop-distribute-patterns -Wl,-z -Wl,now -Wl,-z
-Wl,relro -fno-semantic-inte
rposition -malign-data=abi   -c -O2 -g2 -feliminate-unused-debug-types
-pipe -Wall -Wp,-D_FOR
TIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=32
-Wformat -Wformat-secu
rity -Wl,--copy-dt-needed-entries -m64 -march=ivybridge  -mtune=native
-fasynchronous-unwind-t
ables -Wp,-D_REENTRANT -ftree-loop-distribute-patterns -Wl,-z -Wl,now
-Wl,-z -Wl,relro -fno-se
mantic-interposition -malign-data=abi
-c /builddir/build/BUILD/binutils-2.25/ld/testsuite/ld-
elf/dl5.cc -o tmpdir/dl5.o
Executing on host: sh -c {g++
-B/builddir/build/BUILD/binutils-2.25/ld/tmpdir/ld/ -I/builddir
/build/BUILD/binutils-2.25/ld/testsuite/ld-elf -O2 -g2
-feliminate-unused-debug-types  -pipe -
Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=32 -Wforma
t -Wformat-security -Wl,--copy-dt-needed-entries -m64 -march=ivybridge
-mtune=native -fasynch
ronous-unwind-tables -Wp,-D_REENTRANT -ftree-loop-distribute-patterns
-Wl,-z -Wl,now -Wl,-z -W
l,relro -fno-semantic-interposition -malign-data=abi   -c -O2 -g2
-feliminate-unused-debug-typ
es  -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size
=32 -Wformat -Wformat-security -Wl,--copy-dt-needed-entries -m64
-march=ivybridge  -mtune=nati
ve -fasynchronous-unwind-tables -Wp,-D_REENTRANT
-ftree-loop-distribute-patterns -Wl,-z -Wl,no
w -Wl,-z -Wl,relro -fno-semantic-interposition -malign-data=abi
-c /builddir/build/BUILD/binu
tils-2.25/ld/testsuite/ld-elf/dl5.cc -o tmpdir/dl5.o 2>&1}  /dev/null
ld.tmp (timeout = 300)
spawn [open ...]
g++ -B/builddir/build/BUILD/binutils-2.25/ld/tmpdir/ld/
-L/usr/x86_64-generic-linux/lib64 -L
/usr/lib64 -L/usr/local/lib64 -L/lib64 -L/usr/x86_64-generic-linux/lib
-L/usr/local/lib -L/lib
 -L/usr/lib  -o tmpdir/dl5b
-L/builddir/build/BUILD/binutils-2.25/ld/testsuite/ld-elf tmpdir/l
ibnew1b.so tmpdir/dl5.o
Executing on host: sh -c {g++
-B/builddir/build/BUILD/binutils-2.25/ld/tmpdir/ld/   -L/usr/x86
_64-generic-linux/lib64 -L/usr/lib64 -L/usr/local/lib64 -L/lib64
-L/usr/x86_64-generic-linux/l
ib -L/usr/local/lib -L/lib -L/usr/lib  -o tmpdir/dl5b
-L/builddir/build/BUILD/binutils-2.25/ld
/testsuite/ld-elf tmpdir/libnew1b.so tmpdir/dl5.o 2>&1}  /dev/null
ld.tmp (timeout = 300)
spawn [open ...]
Running: tmpdir/dl5b > tmpdir/dl5b.out
child process exited abnormally
FAIL: Run with libnew1b.so


I will debug more, but if you could find the root cause I will
appreciate a lot 


-- 
Victor Rodriguez

Open Source Technology Center