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[COMMITTED] tile: Enable PI_STATIC_AND_HIDDEN
- From: Chris Metcalf <cmetcalf at ezchip dot com>
- To: <libc-alpha at sourceware dot org>
- Cc: Chris Metcalf <cmetcalf at ezchip dot com>
- Date: Thu, 16 Apr 2015 09:43:09 -0400
- Subject: [COMMITTED] tile: Enable PI_STATIC_AND_HIDDEN
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- References: <20150415211138 dot 1A7542C3BC1 at topped-with-meat dot com>
This does make ld.so very slightly larger (0.3%) and doesn't seem to
actually improve performance; in fact, my limited testing suggested a
slight (0.1%) performance decrease (running fork/exec of a no-op program
in a loop), but I didn't do enough testing to establish statistical
significance.
However, Roland agrees that it makes sense to switch tile to using
this path, since it's the more standard way.
---
ChangeLog | 5 +++++
sysdeps/tile/configure | 7 +++++++
sysdeps/tile/configure.ac | 6 ++++++
3 files changed, 18 insertions(+)
create mode 100644 sysdeps/tile/configure
create mode 100644 sysdeps/tile/configure.ac
diff --git a/ChangeLog b/ChangeLog
index 8f7c17603c9d..344c575192d3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2015-04-16 Chris Metcalf <cmetcalf@ezchip.com>
+
+ * sysdeps/tile/configure.ac: New file.
+ * sysdeps/tile/configure: Regenerated.
+
2015-04-15 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* wcsmbs/wcschr.c [WCSCHR] (wcschr): Define as __wcschr. Remove
diff --git a/sysdeps/tile/configure b/sysdeps/tile/configure
new file mode 100644
index 000000000000..534c7dbc5d22
--- /dev/null
+++ b/sysdeps/tile/configure
@@ -0,0 +1,7 @@
+# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
+ # Local configure fragment for sysdeps/tile.
+
+# We can always access static and hidden symbols in a position independent way.
+$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
+
+# work around problem with autoconf and empty lines at the end of files
diff --git a/sysdeps/tile/configure.ac b/sysdeps/tile/configure.ac
new file mode 100644
index 000000000000..6e246a3bc927
--- /dev/null
+++ b/sysdeps/tile/configure.ac
@@ -0,0 +1,6 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/tile.
+
+# We can always access static and hidden symbols in a position independent way.
+AC_DEFINE(PI_STATIC_AND_HIDDEN)
+# work around problem with autoconf and empty lines at the end of files
--
2.1.2