105 lines
4.1 KiB
Diff
105 lines
4.1 KiB
Diff
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From 3f68c5c9b61600f0f85c75bac15b1520d5059359 Mon Sep 17 00:00:00 2001
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From: Joseph Myers <joseph@codesourcery.com>
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Date: Tue, 22 Aug 2017 00:59:43 +0000
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Subject: [PATCH 44] Fix sparc32 bits/long-double.h (bug 21987).
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My refactoring of long double information
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commit 0acb8a2a855395c25b1feef2470f4d7ca4bed589
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Author: Joseph Myers <joseph@codesourcery.com>
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Date: Wed Dec 14 18:27:56 2016 +0000
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Refactor long double information into bits/long-double.h.
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resulted in sparc32 configurations installing the ldbl-opt version of
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bits/long-double.h instead of the intended
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sysdeps/unix/sysv/linux/sparc version.
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For sparc32 by itself, this is not a problem, since the ldbl-opt
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version is correct for sparc32. However, both sparc32 and sparc64 are
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supposed to install sets of headers that work for both of them, so
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that a single sysroot, whichever order the libraries are built and
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installed in, works for both. The effect of having the wrong version
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installed is that you end up with a miscompiled sparc64 libstdc++
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which fails glibc's configure tests for the C++ compiler.
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This patch moves the header from sysdeps/unix/sysv/linux/sparc to
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separate copies of the same file for sparc32 and sparc64, to ensure it
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comes before ldbl-opt in the sysdeps directory ordering.
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Tested with build-many-glibcs.py for sparc64-linux-gnu and
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sparcv9-linux-gnu.
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[BZ #21987]
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* sysdeps/unix/sysv/linux/sparc/bits/long-double.h: Remove file
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and copy to ...
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* sysdeps/unix/sysv/linux/sparc/sparc32/bits/long-double.h:
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... here.
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* sysdeps/unix/sysv/linux/sparc/sparc64/bits/long-double.h:
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... and here.
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(cherry picked from commit 80f91666fed71fa3dd5eb5618739147cc731bc89)
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---
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ChangeLog | 10 +++++++++
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.../linux/sparc/{ => sparc32}/bits/long-double.h | 0
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.../sysv/linux/sparc/sparc64/bits/long-double.h | 26 ++++++++++++++++++++++
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3 files changed, 36 insertions(+)
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rename sysdeps/unix/sysv/linux/sparc/{ => sparc32}/bits/long-double.h (100%)
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create mode 100644 sysdeps/unix/sysv/linux/sparc/sparc64/bits/long-double.h
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diff --git a/ChangeLog b/ChangeLog
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index 992722acdb..cc763ac065 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,3 +1,13 @@
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+2017-08-22 Joseph Myers <joseph@codesourcery.com>
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+
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+ [BZ #21987]
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+ * sysdeps/unix/sysv/linux/sparc/bits/long-double.h: Remove file
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+ and copy to ...
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+ * sysdeps/unix/sysv/linux/sparc/sparc32/bits/long-double.h:
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+ ... here.
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+ * sysdeps/unix/sysv/linux/sparc/sparc64/bits/long-double.h:
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+ ... and here.
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+
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2017-09-28 Joseph Myers <joseph@codesourcery.com>
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[BZ #22225]
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diff --git a/sysdeps/unix/sysv/linux/sparc/bits/long-double.h b/sysdeps/unix/sysv/linux/sparc/sparc32/bits/long-double.h
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similarity index 100%
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rename from sysdeps/unix/sysv/linux/sparc/bits/long-double.h
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rename to sysdeps/unix/sysv/linux/sparc/sparc32/bits/long-double.h
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diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/bits/long-double.h b/sysdeps/unix/sysv/linux/sparc/sparc64/bits/long-double.h
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new file mode 100644
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index 0000000000..094e05124b
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--- /dev/null
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+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/bits/long-double.h
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@@ -0,0 +1,26 @@
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+/* Properties of long double type. SPARC version.
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+ Copyright (C) 2016-2017 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <bits/wordsize.h>
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+
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+#if !defined __NO_LONG_DOUBLE_MATH && __WORDSIZE == 32
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+# define __LONG_DOUBLE_MATH_OPTIONAL 1
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+# ifndef __LONG_DOUBLE_128__
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+# define __NO_LONG_DOUBLE_MATH 1
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+# endif
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+#endif
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