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author | Joseph Myers <joseph@codesourcery.com> | 2017-08-22 00:59:43 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2017-08-22 00:59:43 +0000 |
commit | 80f91666fed71fa3dd5eb5618739147cc731bc89 (patch) | |
tree | 1a240f6d45f73be0005ef8cf896e0d3a74bf0cf9 /sysdeps/unix/sysv/linux/sparc/sparc32 | |
parent | 75dfe623df945db7dd3c12a206d743c45c16b5ed (diff) | |
download | glibc-80f91666fed71fa3dd5eb5618739147cc731bc89.tar.gz glibc-80f91666fed71fa3dd5eb5618739147cc731bc89.tar.xz glibc-80f91666fed71fa3dd5eb5618739147cc731bc89.zip |
Fix sparc32 bits/long-double.h (bug 21987).
My refactoring of long double information commit 0acb8a2a855395c25b1feef2470f4d7ca4bed589 Author: Joseph Myers <joseph@codesourcery.com> Date: Wed Dec 14 18:27:56 2016 +0000 Refactor long double information into bits/long-double.h. resulted in sparc32 configurations installing the ldbl-opt version of bits/long-double.h instead of the intended sysdeps/unix/sysv/linux/sparc version. For sparc32 by itself, this is not a problem, since the ldbl-opt version is correct for sparc32. However, both sparc32 and sparc64 are supposed to install sets of headers that work for both of them, so that a single sysroot, whichever order the libraries are built and installed in, works for both. The effect of having the wrong version installed is that you end up with a miscompiled sparc64 libstdc++ which fails glibc's configure tests for the C++ compiler. This patch moves the header from sysdeps/unix/sysv/linux/sparc to separate copies of the same file for sparc32 and sparc64, to ensure it comes before ldbl-opt in the sysdeps directory ordering. Tested with build-many-glibcs.py for sparc64-linux-gnu and sparcv9-linux-gnu. [BZ #21987] * sysdeps/unix/sysv/linux/sparc/bits/long-double.h: Remove file and copy to ... * sysdeps/unix/sysv/linux/sparc/sparc32/bits/long-double.h: ... here. * sysdeps/unix/sysv/linux/sparc/sparc64/bits/long-double.h: ... and here.
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc/sparc32')
-rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc32/bits/long-double.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/bits/long-double.h b/sysdeps/unix/sysv/linux/sparc/sparc32/bits/long-double.h new file mode 100644 index 0000000000..094e05124b --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/bits/long-double.h @@ -0,0 +1,26 @@ +/* Properties of long double type. SPARC version. + Copyright (C) 2016-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <bits/wordsize.h> + +#if !defined __NO_LONG_DOUBLE_MATH && __WORDSIZE == 32 +# define __LONG_DOUBLE_MATH_OPTIONAL 1 +# ifndef __LONG_DOUBLE_128__ +# define __NO_LONG_DOUBLE_MATH 1 +# endif +#endif |