arm-linux-gnueabi-ld doens't search /usr/arm-linux-gnueabi/lib

[Loïc Minier]

Binary package hint: binutils

Hi

the SEARCH_DIR list is probably wrong:
ld --verbose | grep SEARCH
SEARCH_DIR("/usr/x86_64-linux-gnu/lib64"); SEARCH_DIR("=/usr/local/lib64"); SEARCH_DIR("=/lib64"); SEARCH_DIR("=/usr/lib64"); SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib");

arm-linux-gnueabi-ld --verbose | grep SEARCH
SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib");

this is withbinutils-arm-linux-gnueabi 2.20.51.20100908-0ubuntu2cross1.50 and binutils 2.20.51.20101014-0ubuntu1

I think we want the cross-toolchain to also look at /usr/$target_triplet/lib.

I'm not actually sure it's correct for our toolchain to look at lib64 rather than lib.

Thanks,

[Loïc Minier (lool)]

Actually, I have a test case for this issue:
arm-linux-gnueabi-gcc -fPIC -c libfoo.c
arm-linux-gnueabi-ld -z defs -shared -o libfoo.so libfoo.o -lpthread
arm-linux-gnueabi-ld: skipping incompatible //usr/lib/libpthread.so when searching for -lpthread
//usr/lib/libpthread.a: could not read symbols: File format not recognized
(fails)

this is with libfoo.c:
#include "libfoo.h"

#include <pthread.h>

int libfoo_run(void) {
    pthread_mutex_t m;

    return pthread_mutex_init(&m, NULL);
}

and libfoo.h:
int libfoo_run(void);

[Marcin Juszkiewicz (hrw)]

Works for me under Natty:

15:29 hrw@home:a$ cat libfoo.h
int libfoo_run(void);
15:29 hrw@home:a$ cat libfoo.c
#include "libfoo.h"

#include <pthread.h>

int libfoo_run(void) {
    pthread_mutex_t m;

    return pthread_mutex_init(&m, NULL);
} /* int libfoo_run(void) */
15:29 hrw@home:a$ arm-linux-gnueabi-gcc -fPIC -c libfoo.c
15:29 hrw@home:a$ arm-linux-gnueabi-ld -z defs -shared -o libfoo.so libfoo.o -lpthread
15:29 hrw@home:a$ file *
libfoo.c: ASCII C program text
libfoo.h: ASCII text
libfoo.o: ELF 32-bit LSB relocatable, ARM, version 1 (SYSV), not stripped
libfoo.so: ELF 32-bit LSB shared object, ARM, version 1 (SYSV), dynamically linked, not stripped

15:29 hrw@home:a$ LC_ALL=C apt-cache policy binutils-arm-linux-gnueabi
binutils-arm-linux-gnueabi:
  Installed: 2.21-1ubuntu4cross1.55
  Candidate: 2.21-1ubuntu4cross1.55
  Version table:
 *** 2.21-1ubuntu4cross1.55 0
        999 http://de.archive.ubuntu.com/ubuntu/ natty/universe amd64 Packages
        100 /var/lib/dpkg/status
     2.20.51.20100908-0ubuntu2cross1.50 0
        999 http://de.archive.ubuntu.com/ubuntu/ maverick/universe amd64 Packages

And under Maverick:

(devel/maverick/amd64)root@home:/tmp/a# arm-linux-gnueabi-gcc -fPIC -c libfoo.c
(devel/maverick/amd64)root@home:/tmp/a# arm-linux-gnueabi-ld -z defs -shared -o libfoo.so libfoo.o -lpthread
(devel/maverick/amd64)root@home:/tmp/a# file *
libfoo.c: ASCII C program text
libfoo.h: ASCII text
libfoo.o: ELF 32-bit LSB relocatable, ARM, version 1 (SYSV), not stripped
libfoo.so: ELF 32-bit LSB shared object, ARM, version 1 (SYSV), dynamically linked, not stripped
(devel/maverick/amd64)root@home:/tmp/a# apt-cache policy binutils-arm-linux-gnueabi
binutils-arm-linux-gnueabi:
  Installed: 2.20.51.20100908-0ubuntu2cross1.52
  Candidate: 2.20.51.20100908-0ubuntu2cross1.52
  Version table:
 *** 2.20.51.20100908-0ubuntu2cross1.52 0
        500 http://archive.ubuntu.com/ubuntu/ maverick-proposed/universe amd64 Packages
        500 http://archive.ubuntu.com/ubuntu/ maverick-updates/universe amd64 Packages
        100 /var/lib/dpkg/status
     2.20.51.20100908-0ubuntu2cross1.50 0
        500 http://pl.archive.ubuntu.com/ubuntu/ maverick/universe amd64 Packages

[Marcin Juszkiewicz (hrw)]

15:33 hrw@home:~$ arm-linux-gnueabi-ld --verbose | grep SEARCH
SEARCH_DIR("/usr/arm-linux-gnueabi/lib");
15:33 hrw@home:~$ sudo chroot devel/chroots/maverick-amd64/
(devel/maverick/amd64)root@home:/# arm-linux-gnueabi-ld --verbose | grep SEARCH
SEARCH_DIR("/usr/arm-linux-gnueabi/lib");