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| author | Joseph Myers <joseph@codesourcery.com> | 2015-10-27 21:46:03 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-10-27 21:46:03 +0000 |
| commit | 3e2ee6f0e3471ceb4c49f8287676a7050401bf8f (patch) | |
| tree | b3b95b912899d4a1ae295c7f4122960858fc9f4d /sysdeps/nptl/configure.ac | |
| parent | 72f1463df85a522bfd1568e47bd81371522ee358 (diff) | |
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Remove sysdeps/nptl/configure.ac.
sysdeps/nptl/configure.ac tests for forced unwind support and the C
cleanup attribute, giving errors if either is unsupported. It does
nothing beyond running those two tests.
Both the attribute, and _Unwind_GetCFA which is used in the forced
unwind test, were added in GCC 3.3. Thus these tests are long
obsolete, and this patch removes the configure fragment running them,
along with associated conditionals.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
* sysdeps/nptl/configure.ac: Remove file.
* sysdeps/nptl/configure: Remove generated file.
* configure.ac (libc_cv_forced_unwind): Do not substitute.
* configure: Regenerated.
* config.h.in (HAVE_FORCED_UNWIND): Remove #undef.
* config.make.in (have-forced-unwind): Remove variable.
* nptl/Makefile [$(have-forced-unwind) = yes]: Make code
unconditional.
* nptl/descr.h [HAVE_FORCED_UNWIND]: Likewise.
* nptl/unwind.c [HAVE_FORCED_UNWIND]: Likewise.
(__pthread_unwind) [!HAVE_FORCED_UNWIND]: Remove conditional code.
* nptl/version.c [HAVE_FORCED_UNWIND]: Make code unconditional.
* sysdeps/nptl/Makefile [$(have-forced-unwind) = yes]: Make code
unconditional.
Diffstat (limited to 'sysdeps/nptl/configure.ac')
| -rw-r--r-- | sysdeps/nptl/configure.ac | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/sysdeps/nptl/configure.ac b/sysdeps/nptl/configure.ac deleted file mode 100644 index 1ee3d576be..0000000000 --- a/sysdeps/nptl/configure.ac +++ /dev/null @@ -1,37 +0,0 @@ -dnl configure fragment for new libpthread implementation. -GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. - -dnl Iff <unwind.h> is available, make sure it is the right one and it -dnl contains struct _Unwind_Exception. -AC_CACHE_CHECK(dnl -for forced unwind support, libc_cv_forced_unwind, [dnl -old_CPPFLAGS="$CPPFLAGS" -# Without inhibit_libc #define'd, GCC's unwind.h (at least for ia64) -# will try to include <stdlib.h>, which doesn't exist yet if we're -# building libc in a bare environment. -CPPFLAGS="$CPPFLAGS -Dinhibit_libc=1" -AC_TRY_COMPILE([#include <unwind.h>], [ -struct _Unwind_Exception exc; -struct _Unwind_Context *context; -_Unwind_GetCFA (context)], -libc_cv_forced_unwind=yes, libc_cv_forced_unwind=no) -CPPFLAGS="$old_CPPFLAGS"]) -if test $libc_cv_forced_unwind = yes; then - AC_DEFINE(HAVE_FORCED_UNWIND) -dnl Check for C cleanup handling. - old_CFLAGS="$CFLAGS" - CFLAGS="$CFLAGS -Werror -fexceptions" - AC_CACHE_CHECK([for C cleanup handling], libc_cv_c_cleanup, [dnl - AC_TRY_COMPILE([ -extern void some_function (void); -void cl (void *a) { }], [ - int a __attribute__ ((cleanup (cl))); - some_function ()], -libc_cv_c_cleanup=yes, libc_cv_c_cleanup=no)]) - CFLAGS="$old_CFLAGS" - if test $libc_cv_c_cleanup = no; then - AC_MSG_ERROR([the compiler must support C cleanup handling]) - fi -else - AC_MSG_ERROR(forced unwind support is required) -fi |