http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52616
Bug #: 52616
Summary: problem with '-m32' and specific arguments to '-o'
Classification: Unclassified
Product: gcc
Version: 4.4.6
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: driver
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: adp...@yahoo.co.uk
On Centos 6.2 x64 with gcc that identifies itself as follows:
gcc version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC)
linking fails for certain cases of '-m32' and '-o <output filename>' options:
$ make
gcc -m32 -c -o hello.o hello.c
gcc -m32 -o dm32 hello.o
/usr/bin/ld: i386 architecture of input file `hello.o' is incompatible with
i386:x86-64 output
collect2: ld returned 1 exit status
make: *** [dm32] Error 1
It looks like using an output filename of the form '.m32', where . is any
character, causes 'gcc' to get confused. If the '-o' option has an argument
that doesn't contain 'm32', linking succeeds. A workaround seems to be to use
'-o<output filename>', i.e. no space between '-o' and its argument.
hello.c is any old "hello world!" program.
Incorrect behaviour with '-v' option:
----------------------------------------------------------
$ gcc -v -m32 -o dm32 hello.o
Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla
--enable-bootstrap --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-gnu-unique-object
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk
--disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --enable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib
--with-ppl --with-cloog --with-tune=generic --with-arch_32=i686
--build=x86_64-redhat-linux
Thread model: posix
gcc version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC)
COMPILER_PATH=/usr/libexec/gcc/x86_64-redhat-linux/4.4.6/:/usr/libexec/gcc/x86_64-redhat-linux/4.4.6/:/usr/libexec/gcc/x86_64-redhat-linux/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/:/usr/lib/gcc/x86_64-redhat-linux/:/usr/libexec/gcc/x86_64-redhat-linux/4.4.6/:/usr/libexec/gcc/x86_64-redhat-linux/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/:/usr/lib/gcc/x86_64-redhat-linux/
LIBRARY_PATH=/usr/lib/gcc/x86_64-redhat-linux/4.4.6/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib64/:/lib/../lib64/:/usr/lib/../lib64/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v' '-o' 'dm32' '-mtune=generic'
/usr/libexec/gcc/x86_64-redhat-linux/4.4.6/collect2 --eh-frame-hdr --build-id
-m elf_x86_64 --hash-style=gnu -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o
dm32 /usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib64/crt1.o
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib64/crti.o
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/crtbegin.o
-L/usr/lib/gcc/x86_64-redhat-linux/4.4.6
-L/usr/lib/gcc/x86_64-redhat-linux/4.4.6
-L/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib64 -L/lib/../lib64
-L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../.. hello.o
-lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s
--no-as-needed /usr/lib/gcc/x86_64-redhat-linux/4.4.6/crtend.o
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib64/crtn.o
/usr/bin/ld: i386 architecture of input file `hello.o' is incompatible with
i386:x86-64 output
collect2: ld returned 1 exit status
Correct behaviour with '-v' option:
----------------------------------------------------------
$ gcc -v -m32 -o hello hello.o
Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla
--enable-bootstrap --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-gnu-unique-object
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk
--disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --enable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib
--with-ppl --with-cloog --with-tune=generic --with-arch_32=i686
--build=x86_64-redhat-linux
Thread model: posix
gcc version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC)
COMPILER_PATH=/usr/libexec/gcc/x86_64-redhat-linux/4.4.6/:/usr/libexec/gcc/x86_64-redhat-linux/4.4.6/:/usr/libexec/gcc/x86_64-redhat-linux/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/:/usr/lib/gcc/x86_64-redhat-linux/:/usr/libexec/gcc/x86_64-redhat-linux/4.4.6/:/usr/libexec/gcc/x86_64-redhat-linux/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/:/usr/lib/gcc/x86_64-redhat-linux/
LIBRARY_PATH=/usr/lib/gcc/x86_64-redhat-linux/4.4.6/32/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/32/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib/:/lib/../lib/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/:/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v' '-m32' '-o' 'hello' '-mtune=generic' '-march=i686'
/usr/libexec/gcc/x86_64-redhat-linux/4.4.6/collect2 --eh-frame-hdr --build-id
-m elf_i386 --hash-style=gnu -dynamic-linker /lib/ld-linux.so.2 -o hello
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib/crt1.o
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib/crti.o
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/32/crtbegin.o
-L/usr/lib/gcc/x86_64-redhat-linux/4.4.6/32
-L/usr/lib/gcc/x86_64-redhat-linux/4.4.6/32
-L/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib -L/lib/../lib
-L/usr/lib/../lib -L/usr/lib/gcc/x86_64-redhat-linux/4.4.6
-L/usr/lib/gcc/x86_64-redhat-linux/4.4.6
-L/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../.. hello.o -lgcc --as-needed
-lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/32/crtend.o
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../../lib/crtn.o
