[Bug target/49392] New: [arm] spurious EABI version mismatches when LTO enabled

[philb at gnu dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49392

           Summary: [arm] spurious EABI version mismatches when LTO
                    enabled
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: ph...@gnu.org
            Target: arm-linux


Attempting to build even a trivial executable with -flto yields:

pb@lander:~$ cat t.c
#include <stdio.h>
int main() { printf("Hello world"); }

pb@lander:~$ arm-oe-linux-gnueabi-gcc -flto t.c
/home/pb/oe/build-giga/tmp-eglibc/sysroots/x86_64-linux/libexec/armv6-oe-linux-gnueabi/gcc/arm-oe-linux-gnueabi/4.6.0/arm-oe-linux-gnueabi-ld:
error: Source object /tmp/cc60ozAJ.o.ironly has EABI version 0, but target
a.out has EABI version 5
/home/pb/oe/build-giga/tmp-eglibc/sysroots/x86_64-linux/libexec/armv6-oe-linux-gnueabi/gcc/arm-oe-linux-gnueabi/4.6.0/arm-oe-linux-gnueabi-ld:
failed to merge target specific data of file /tmp/cc60ozAJ.o.ironly
collect2: ld returned 1 exit status
pb@lander:~$