posix: Consolidate Linux glob implementation

This patch consolidates the glob implementation.  The main changes are:

  * On Linux all implementation now uses the default one at
    sysdeps/unix/sysv/linux/glob{free}{64}.c with the exception
    of alpha (which requires specific versioning) and s390-32 (which
    different than other 32 bits ports it does not add a compat one
    symbol for 2.1 version).

  * The default implementation uses XSTAT_IS_XSTAT64 to define whether
    both glob{free} and glob{free}64 should be different implementations.
    For archictures that define XSTAT_IS_XSTAT64, glob{free} is an alias
    to glob{free}64.

  * Move i386 olddirent.h header to Linux default directory, since it is
    the only header with this name and it is shared among different
    architectures (and used on compat glob symbol as well).

Checked on x86_64-linux-gnu and on a build using build-many-glibcs.py
for all major architectures.

	* sysdeps/unix/sysv/linux/arm/glob64.c: Remove file.
	* sysdeps/unix/sysv/linux/i386/glob64.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/glob64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/glob64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/globfree64.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/glob64.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/glob64.c: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/glob64.c: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/globfree64.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/glob.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/globfree.c: Likewise.
	* sysdeps/wordsize-64/glob.c: Likewise.
	* sysdeps/wordsize-64/glob64.c: Likewise.
	* sysdeps/wordsize-64/globfree64.c: Likewise.
	* sysdeps/unix/sysv/linux/glob.c: New file.
	* sysdeps/unix/sysv/linux/glob64.c: Likewise.
	* sysdeps/unix/sysv/linux/globfree.c: Likewise.
	* sysdeps/unix/sysv/linux/globfree64.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/glob64.c: Likewise.
	* sysdeps/unix/sysv/linux/oldglob.c [SHLIB_COMPAT]: Also
	adds !GLOB_NO_OLD_VERSION as an extra condition.
	* sysdeps/unix/sysv/linux/i386/alphasort64.c: Include olddirent.h
	using relative path instead of absolute one.
	* sysdeps/unix/sysv/linux/i386/getdents64.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/readdir64.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/readdir64_r.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/versionsort64.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/olddirent.h: Move to ...
	* sysdeps/unix/sysv/linux//olddirent.h: ... here.

22 files changed, 129 insertions, 35 deletions

diff --git a/sysdeps/unix/sysv/linux/arm/glob64.c b/sysdeps/unix/sysv/linux/arm/glob64.c
deleted file mode 100644
index 82a9a296a7..0000000000
--- a/sysdeps/unix/sysv/linux/arm/glob64.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/i386/glob64.c>
diff --git a/sysdeps/unix/sysv/linux/glob.c b/sysdeps/unix/sysv/linux/glob.c
new file mode 100644
index 0000000000..057ae7fe25
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/glob.c
@@ -0,0 +1,28 @@
+/* Find pathnames matching a pattern.  Linux version.
+   Copyright (C) 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 as 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 <sys/stat.h>
+#include <kernel_stat.h>
+
+#define glob64 __no_glob64_decl
+#include <posix/glob.c>
+#undef glob64
+
+#if XSTAT_IS_XSTAT64
+weak_alias (glob, glob64)
+#endif
diff --git a/sysdeps/unix/sysv/linux/i386/glob64.c b/sysdeps/unix/sysv/linux/glob64.c
index 230f9fc037..428bbacb11 100644
--- a/sysdeps/unix/sysv/linux/i386/glob64.c
+++ b/sysdeps/unix/sysv/linux/glob64.c
@@ -1,5 +1,5 @@
-/* Two glob variants with 64-bit support, for dirent64 and __olddirent64.
-   Copyright (C) 1998-2017 Free Software Foundation, Inc.
+/* Find pathnames matching a pattern.  Linux version.
+   Copyright (C) 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
@@ -16,27 +16,36 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#include <dirent.h>
-#include <glob.h>
 #include <sys/stat.h>
-#include <shlib-compat.h>
+#include <kernel_stat.h>
 
-#define dirent dirent64
-#define __readdir(dirp) __readdir64 (dirp)
+#if !XSTAT_IS_XSTAT64
+# include <glob.h>
+# include <dirent.h>
+# include <sys/stat.h>
 
-#define glob_t glob64_t
-#define glob(pattern, flags, errfunc, pglob) \
+# define dirent dirent64
+# define __readdir(dirp) __readdir64 (dirp)
+
+# define glob_t glob64_t
+# define glob(pattern, flags, errfunc, pglob) \
   __glob64 (pattern, flags, errfunc, pglob)
-#define globfree(pglob) globfree64 (pglob)
+# define globfree(pglob) globfree64 (pglob)
+
+# undef stat
+# define stat stat64
 
-#undef stat
-#define stat stat64
-#undef __stat
-#define __stat(file, buf) __xstat64 (_STAT_VER, file, buf)
+# define COMPILE_GLOB64	1
 
-#define COMPILE_GLOB64	1
+# include <posix/glob.c>
 
-#include <posix/glob.c>
+# include "shlib-compat.h"
 
+# ifdef GLOB_NO_OLD_VERSION
+strong_alias (__glob64, glob64)
+libc_hidden_def (glob64)
+# else
 versioned_symbol (libc, __glob64, glob64, GLIBC_2_2);
 libc_hidden_ver (__glob64, glob64)
+# endif
+#endif /* XSTAT_IS_XSTAT64  */
diff --git a/sysdeps/unix/sysv/linux/globfree.c b/sysdeps/unix/sysv/linux/globfree.c
new file mode 100644
index 0000000000..48d4aec332
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/globfree.c
@@ -0,0 +1,30 @@
+/* Frees the dynamically allocated storage from an earlier call to glob.
+   Linux version.
+   Copyright (C) 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 as 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 <sys/stat.h>
+#include <kernel_stat.h>
+
+#define globfree64 __no_globfree64_decl
+#include <posix/globfree.c>
+#undef globfree64
+
+#if XSTAT_IS_XSTAT64
+weak_alias (globfree, globfree64)
+libc_hidden_ver (globfree, globfree64)
+#endif
diff --git a/sysdeps/unix/sysv/linux/globfree64.c b/sysdeps/unix/sysv/linux/globfree64.c
new file mode 100644
index 0000000000..0020466372
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/globfree64.c
@@ -0,0 +1,36 @@
+/* Frees the dynamically allocated storage from an earlier call to glob.
+   Linux version.
+   Copyright (C) 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 as 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 <sys/stat.h>
+#include <kernel_stat.h>
+
+#if !XSTAT_IS_XSTAT64
+
+# include <glob.h>
+
+# define glob_t glob64_t
+# define globfree(pglob) globfree64 (pglob)
+
+# undef stat
+# define stat stat64
+
+# include <posix/globfree.c>
+
+libc_hidden_def (globfree64)
+#endif
diff --git a/sysdeps/unix/sysv/linux/i386/alphasort64.c b/sysdeps/unix/sysv/linux/i386/alphasort64.c
index d5fd47a9ae..04b29b6e0e 100644
--- a/sysdeps/unix/sysv/linux/i386/alphasort64.c
+++ b/sysdeps/unix/sysv/linux/i386/alphasort64.c
@@ -30,7 +30,7 @@ versioned_symbol (libc, __alphasort64, alphasort64, GLIBC_2_2);
 
 #if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
 
-#include <sysdeps/unix/sysv/linux/i386/olddirent.h>
+#include <olddirent.h>
 
 int
 __old_alphasort64 (const struct __old_dirent64 **a,
diff --git a/sysdeps/unix/sysv/linux/i386/getdents64.c b/sysdeps/unix/sysv/linux/i386/getdents64.c
index e8b257f059..2010bbf8df 100644
--- a/sysdeps/unix/sysv/linux/i386/getdents64.c
+++ b/sysdeps/unix/sysv/linux/i386/getdents64.c
@@ -28,7 +28,7 @@
 
 #if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
 
-#include <sysdeps/unix/sysv/linux/i386/olddirent.h>
+#include <olddirent.h>
 
 #define __GETDENTS __old_getdents64
 #define DIRENT_TYPE struct __old_dirent64
diff --git a/sysdeps/unix/sysv/linux/i386/readdir64.c b/sysdeps/unix/sysv/linux/i386/readdir64.c
index de8669feff..da3defd379 100644
--- a/sysdeps/unix/sysv/linux/i386/readdir64.c
+++ b/sysdeps/unix/sysv/linux/i386/readdir64.c
@@ -31,7 +31,7 @@ versioned_symbol (libc, __readdir64, readdir64, GLIBC_2_2);
 
 #if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
 
-#include <sysdeps/unix/sysv/linux/i386/olddirent.h>
+#include <olddirent.h>
 
 #define __READDIR attribute_compat_text_section __old_readdir64
 #define __GETDENTS __old_getdents64
diff --git a/sysdeps/unix/sysv/linux/i386/readdir64_r.c b/sysdeps/unix/sysv/linux/i386/readdir64_r.c
index 344fd53d02..8c0262d1dc 100644
--- a/sysdeps/unix/sysv/linux/i386/readdir64_r.c
+++ b/sysdeps/unix/sysv/linux/i386/readdir64_r.c
@@ -31,7 +31,7 @@ versioned_symbol (libc, __readdir64_r, readdir64_r, GLIBC_2_2);
 
 #if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
 
-#include <sysdeps/unix/sysv/linux/i386/olddirent.h>
+#include <olddirent.h>
 
 #define __READDIR_R attribute_compat_text_section __old_readdir64_r
 #define __GETDENTS __old_getdents64
diff --git a/sysdeps/unix/sysv/linux/i386/versionsort64.c b/sysdeps/unix/sysv/linux/i386/versionsort64.c
index 3e1c6ea35b..87f2f9578d 100644
--- a/sysdeps/unix/sysv/linux/i386/versionsort64.c
+++ b/sysdeps/unix/sysv/linux/i386/versionsort64.c
@@ -30,7 +30,7 @@ versioned_symbol (libc, __versionsort64, versionsort64, GLIBC_2_2);
 
 #if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
 
-#include <sysdeps/unix/sysv/linux/i386/olddirent.h>
+#include <olddirent.h>
 
 int
 __old_versionsort64 (const struct __old_dirent64 **a,
diff --git a/sysdeps/unix/sysv/linux/m68k/glob64.c b/sysdeps/unix/sysv/linux/m68k/glob64.c
deleted file mode 100644
index 82a9a296a7..0000000000
--- a/sysdeps/unix/sysv/linux/m68k/glob64.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/i386/glob64.c>
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/glob64.c b/sysdeps/unix/sysv/linux/mips/mips64/n64/glob64.c
deleted file mode 100644
index 33918ea6a5..0000000000
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/glob64.c
+++ /dev/null
@@ -1 +0,0 @@
-/* glob64 is in glob.c */
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/globfree64.c b/sysdeps/unix/sysv/linux/mips/mips64/n64/globfree64.c
deleted file mode 100644
index abc35fdd2b..0000000000
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/globfree64.c
+++ /dev/null
@@ -1 +0,0 @@
-/* glob64 is in globfree64.c */
diff --git a/sysdeps/unix/sysv/linux/i386/olddirent.h b/sysdeps/unix/sysv/linux/olddirent.h
index 0b4c81da0e..0b4c81da0e 100644
--- a/sysdeps/unix/sysv/linux/i386/olddirent.h
+++ b/sysdeps/unix/sysv/linux/olddirent.h
diff --git a/sysdeps/unix/sysv/linux/oldglob.c b/sysdeps/unix/sysv/linux/oldglob.c
index 8233e57ce9..5402450f55 100644
--- a/sysdeps/unix/sysv/linux/oldglob.c
+++ b/sysdeps/unix/sysv/linux/oldglob.c
@@ -1,12 +1,13 @@
 #include <shlib-compat.h>
 
-#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
+#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2) \
+    && !defined(GLOB_NO_OLD_VERSION)
 
 #include <dirent.h>
 #include <glob.h>
 #include <sys/stat.h>
 
-#include <sysdeps/unix/sysv/linux/i386/olddirent.h>
+#include <olddirent.h>
 
 int __old_glob64 (const char *__pattern, int __flags,
 		  int (*__errfunc) (const char *, int),
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/glob64.c b/sysdeps/unix/sysv/linux/powerpc/powerpc32/glob64.c
deleted file mode 100644
index 82a9a296a7..0000000000
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/glob64.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/i386/glob64.c>
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/glob64.c b/sysdeps/unix/sysv/linux/s390/s390-32/glob64.c
new file mode 100644
index 0000000000..d220e22e30
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/glob64.c
@@ -0,0 +1,2 @@
+#define GLOB_NO_OLD_VERSION
+#include <sysdeps/unix/sysv/linux/glob64.c>
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/glob64.c b/sysdeps/unix/sysv/linux/sparc/sparc32/glob64.c
deleted file mode 100644
index 82a9a296a7..0000000000
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/glob64.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/i386/glob64.c>
diff --git a/sysdeps/unix/sysv/linux/wordsize-64/glob64.c b/sysdeps/unix/sysv/linux/wordsize-64/glob64.c
deleted file mode 100644
index eab7703d5c..0000000000
--- a/sysdeps/unix/sysv/linux/wordsize-64/glob64.c
+++ /dev/null
@@ -1,2 +0,0 @@
-/* This file is here so sysdeps/gnu/glob64.c doesn't take precedence.  */
-#include <sysdeps/wordsize-64/glob64.c>
diff --git a/sysdeps/unix/sysv/linux/wordsize-64/globfree64.c b/sysdeps/unix/sysv/linux/wordsize-64/globfree64.c
deleted file mode 100644
index af035e1514..0000000000
--- a/sysdeps/unix/sysv/linux/wordsize-64/globfree64.c
+++ /dev/null
@@ -1,2 +0,0 @@
-/* This file is here so sysdeps/gnu/glob64.c doesn't take precedence.  */
-#include <sysdeps/wordsize-64/globfree64.c>
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/glob.c b/sysdeps/unix/sysv/linux/x86_64/x32/glob.c
deleted file mode 100644
index e5427475f6..0000000000
--- a/sysdeps/unix/sysv/linux/x86_64/x32/glob.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/wordsize-64/glob.c>
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/globfree.c b/sysdeps/unix/sysv/linux/x86_64/x32/globfree.c
deleted file mode 100644
index b76a761c17..0000000000
--- a/sysdeps/unix/sysv/linux/x86_64/x32/globfree.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/wordsize-64/globfree.c>