On 22.12.15 20:18, Andreas Tobler wrote:
Hi all,
The attached patch fixes a problem you get if you build dynamic binaries
for a 32-bit powerpc target on a 64-bit powerpc host.
At the time I did this port I didn't fully understand all the scenarios
you might run into.
The issue is this, on all FreeBSD archs the interpreter is ld-elf.so.1.
On powerpc64 we have also an ld-elf32.so.1 for 32-bit binaries. In case
we run a 32-bit binary on a 64-bit host the RTLD reroutes the call to
this ld-elf32.so.1.
Up to now this rerouting didn't happen since gcc used the ld-elf32.so.1
instead. The binary runs fine on the 64-bit host since the RTLD finds a
ld-elf32.so.1.
But now when I take this binary to a 32-bit host I can't run it since
the RTLD does not find the ld-elf32.so.1.
The patch fixes this and simplifies the LINK_OS_FREEBSD_SPEC_DEF for
FreeBSD powerpc64.
If there are no major objections I'm going to apply this patch to trunk,
gcc-5 and gcc-49 branch in the next days. It is FreeBSD powerpc64 only
and it is a bug.
Applied on the mentioned branches.
Andreas
2015-12-22 Andreas Tobler <andre...@gcc.gnu.org>
* config/rs6000/freebsd64.h: Delete FREEBSD_DYNAMIC_LINKER32/64
defines. Use FBSD_DYNAMIC_LINKER instead.
Rename and simplify LINK_OS_FREEBSD_SPEC_DEF32/64 to
LINK_OS_FREEBSD_SPEC_DEF.
