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Test for __cxa_thread_atexit_impl when cross-compiling libstdc++ for GNU targets
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <gcc-patches at gcc dot gnu dot org>, <libstdc++ at gcc dot gnu dot org>
- Date: Fri, 9 Oct 2015 23:18:55 +0000
- Subject: Test for __cxa_thread_atexit_impl when cross-compiling libstdc++ for GNU targets
- Authentication-results: sourceware.org; auth=none
I noticed that when testing glibc with a cross compiler I got
UNSUPPORTED: nptl/tst-thread_local1
because the libstdc++-v3 configuration for cross compiling defaulted
to __cxa_thread_atexit_impl not being available. This patch fixes
GLIBCXX_CROSSCONFIG to run the same test (for the case covering
targets with glibc) for __cxa_thread_atexit_impl as for native
compilation, just as it runs most of the other tests done for native
compilation (for these targets, it's not possible to build libstdc++
without already having built libc, so link tests are OK).
Tested with no regressions for cross to arm-none-linux-gnueabi. OK to
commit?
2015-10-09 Joseph Myers <joseph@codesourcery.com>
* crossconfig.m4 (GLIBCXX_CROSSCONFIG) <*-linux* | *-uclinux* |
*-gnu* | *-kfreebsd*-gnu | *-knetbsd*-gnu | *-cygwin*>: Check for
__cxa_thread_atexit_impl.
* configure: Regenerate.
Index: libstdc++-v3/crossconfig.m4
===================================================================
--- libstdc++-v3/crossconfig.m4 (revision 228601)
+++ libstdc++-v3/crossconfig.m4 (working copy)
@@ -156,6 +156,7 @@
GLIBCXX_CHECK_STDLIB_SUPPORT
AC_DEFINE(_GLIBCXX_USE_RANDOM_TR1)
GCC_CHECK_TLS
+ AC_CHECK_FUNCS(__cxa_thread_atexit_impl)
AM_ICONV
;;
*-mingw32*)
--
Joseph S. Myers
joseph@codesourcery.com