Instead of tying based on the linker name and version, check for the
required support:
* whether it does not generate dynamic TLS relocations in PIE
(binutils PR ld/22263);
* if it accepts --no-dynamic-linker (by using -static-pie);
* and if it adds a DT_JMPREL pointing to .rela.iplt with static pie.
The patch also trims the comments, for binutils one of the tests should
already cover it. The kernel ones are not clear which version should
have the backport, nor it is something that glibc can do much about
it. Finally, the glibc is somewhat confusing, since it refers
to commits not related to s390x.
Checked with a build for s390x-linux-gnu.
Reviewed-by: Stefan Liebler <stli@linux.ibm.com>
The static PIE configure check uses link tests. When bootstrapping
a cross-toolchain, the link tests fail due to missing crt-files /
libc.so. As we explicitely want to test an issue in binutils (ld),
we now also explicitely check for known linker versions.
See also commit 368b7c614b
S390: Use compile-only instead of also link-tests in configure.
Let's use LC_ALL=C as we do elsewhere for consistency.
Tested on s390x-ibm-linux-gnu.
See: 72bd208846
Signed-off-by: Sam James <sam@gentoo.org>
Reviewed-by: Stefan Liebler <stli@linux.ibm.com>
We already check for it in root configure.ac with AC_CHECK_TOOL. Let's
use the result.
Tested on s390x-ibm-linux-gnu.
Signed-off-by: Sam James <sam@gentoo.org>
Reviewed-by: Stefan Liebler <stli@linux.ibm.com>
Autoconf has been deprecating configure.in for quite a long time.
Rename all our configure.in and preconfigure.in files to .ac.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
