Changeset 4007dbb for m4

Timestamp:

08/21/15 11:22:30 (6 years ago)

Author:

Richard Sanger <rsangerarj@…>

Branches:

4.0.1-hotfixes, cachetimestamps, develop, dpdk-ndag, etsilive, libtrace4, master, ndag_format, pfring, rc-4.0.1, rc-4.0.2, rc-4.0.3, rc-4.0.4, ringdecrementfix, ringperformance, ringtimestampfixes

Children:

eea427f

Parents:

76291d1

Message:

Updates the new interface to be more complete

This should work around any issues with systems without thread support.
This still remains compatible with existing code.
Examples/tools/tests still need to be updated to make use of the new interface.
And tests also need to be updated.
Adds debug memory stats as an option to configure.

File:

• m4/attributes.m4 (modified) (1 diff)

m4/attributes.m4

@@ -154 +154 @@
 ])
 
+AC_DEFUN([gcc_TLS],
+[
+  HAVE_TLS=0
+  if test -n "$CC"; then
+    AC_CACHE_CHECK([if compiler supports TLS __thread],
+      [lt_cv_attribute_tls],
+      [
+       AC_COMPILE_IFELSE([AC_LANG_SOURCE(
+         [static __thread int apples;])],
+         [lt_cv_attribute_tls=yes],
+         [lt_cv_attribute_tls=no]
+       )
+      ])
+    if test x$lt_cv_attribute_tls = xyes; then
+      HAVE_TLS=1
+    fi
+  fi
+  AC_SUBST([HAVE_TLS])
+  AC_DEFINE_UNQUOTED([HAVE_TLS], [$HAVE_TLS],
+    [Define to 1 or 0, depending on whether the compiler supports tls via __thread.])
+])