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2017-06-12 Wilco Dijkstra <wdijkstr@arm.com>
There is no longer a need for string2.h, so remove it and all mention of it. Move the redirect for __stpcpy to include/string.h since it is still required until all internal uses have been renamed. This fixes several linknamespace/localplt failures when building with -Os. [BZ #15105] [BZ #19463] * include/string.h: Add internal redirect for __stpcpy. * string/Makefile: Remove bits/string2.h. * string/string.h: Update comment. * string/string-inlines.c: Remove bits/string2.h include and comment. * string/bits/string2.h: Remove file.
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Wilco Dijkstra
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ChangeLog
10
ChangeLog
@ -1,3 +1,13 @@
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2017-06-12 Wilco Dijkstra <wdijkstr@arm.com>
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[BZ #15105]
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[BZ #19463]
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* include/string.h: Add internal redirect for __stpcpy.
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* string/Makefile: Remove bits/string2.h.
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* string/string.h: Update comment.
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* string/string-inlines.c: Remove bits/string2.h include and comment.
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* string/bits/string2.h: Remove file.
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2017-06-12 Wilco Dijkstra <wdijkstr@arm.com>
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* sunrpc/bindrsvprt.c (bindresvport): Change __bzero to memset.
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@ -162,6 +162,11 @@ extern __typeof (mempcpy) mempcpy __asm__ ("__mempcpy");
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extern __typeof (stpcpy) stpcpy __asm__ ("__stpcpy");
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#endif
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/* Redirect internal calls to builtins. */
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#ifndef __stpcpy
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# define __stpcpy(dest, src) __builtin_stpcpy (dest, src)
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#endif
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extern void *__memcpy_chk (void *__restrict __dest,
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const void *__restrict __src, size_t __len,
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size_t __destlen) __THROW;
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@ -24,8 +24,8 @@ include ../Makeconfig
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headers := string.h strings.h memory.h endian.h bits/endian.h \
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argz.h envz.h byteswap.h bits/byteswap.h bits/byteswap-16.h \
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bits/string.h bits/string2.h bits/string3.h \
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bits/strings_fortified.h bits/uintn-identity.h
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bits/string.h bits/string3.h bits/strings_fortified.h \
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bits/uintn-identity.h
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routines := strcat strchr strcmp strcoll strcpy strcspn \
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strverscmp strdup strndup \
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@ -1,119 +0,0 @@
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/* Machine-independant string function optimizations.
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Copyright (C) 1997-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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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 as 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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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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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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#ifndef _STRING_H
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# error "Never use <bits/string2.h> directly; include <string.h> instead."
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#endif
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#ifndef __NO_STRING_INLINES
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/* Unlike the definitions in the header <bits/string.h> the
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definitions contained here are not optimized down to assembler
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level. Those optimizations are not always a good idea since this
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means the code size increases a lot. Instead the definitions here
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optimize some functions in a way which do not dramatically
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increase the code size and which do not use assembler. The main
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trick is to use GCC's `__builtin_constant_p' function.
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Every function XXX which has a defined version in
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<bits/string.h> must be accompanied by a symbol _HAVE_STRING_ARCH_XXX
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to make sure we don't get redefinitions.
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We must use here macros instead of inline functions since the
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trick won't work with the latter. */
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#ifndef __STRING_INLINE
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# ifdef __cplusplus
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# define __STRING_INLINE inline
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# else
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# define __STRING_INLINE __extern_inline
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# endif
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#endif
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/* Dereferencing a pointer arg to run sizeof on it fails for the void
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pointer case, so we use this instead.
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Note that __x is evaluated twice. */
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#define __string2_1bptr_p(__x) \
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((size_t)(const void *)((__x) + 1) - (size_t)(const void *)(__x) == 1)
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/* Set N bytes of S to 0. */
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#if !defined _HAVE_STRING_ARCH_memset
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# define __bzero(s, n) __builtin_memset (s, '\0', n)
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#endif
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/* Copy SRC to DEST, returning pointer to final NUL byte. */
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#ifdef __USE_GNU
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# ifndef _HAVE_STRING_ARCH_stpcpy
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# define __stpcpy(dest, src) __builtin_stpcpy (dest, src)
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/* In glibc we use this function frequently but for namespace reasons
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we have to use the name `__stpcpy'. */
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# define stpcpy(dest, src) __stpcpy (dest, src)
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# endif
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#endif
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/* Copy no more than N characters of SRC to DEST. */
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#ifndef _HAVE_STRING_ARCH_strncpy
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# define strncpy(dest, src, n) __builtin_strncpy (dest, src, n)
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#endif
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/* Append no more than N characters from SRC onto DEST. */
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#ifndef _HAVE_STRING_ARCH_strncat
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# ifdef _USE_STRING_ARCH_strchr
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# define strncat(dest, src, n) \
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(__extension__ ({ char *__dest = (dest); \
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__builtin_constant_p (src) && __builtin_constant_p (n) \
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? (strlen (src) < ((size_t) (n)) \
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? strcat (__dest, src) \
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: (*((char *) __mempcpy (strchr (__dest, '\0'), \
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src, n)) = '\0', __dest)) \
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: strncat (dest, src, n); }))
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# else
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# define strncat(dest, src, n) __builtin_strncat (dest, src, n)
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# endif
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#endif
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/* Return the length of the initial segment of S which
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consists entirely of characters not in REJECT. */
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#ifndef _HAVE_STRING_ARCH_strcspn
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# define strcspn(s, reject) __builtin_strcspn (s, reject)
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#endif
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/* Return the length of the initial segment of S which
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consists entirely of characters in ACCEPT. */
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#ifndef _HAVE_STRING_ARCH_strspn
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# define strspn(s, accept) __builtin_strspn (s, accept)
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#endif
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/* Find the first occurrence in S of any character in ACCEPT. */
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#ifndef _HAVE_STRING_ARCH_strpbrk
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# define strpbrk(s, accept) __builtin_strpbrk (s, accept)
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#endif
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#ifndef _FORCE_INLINES
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# undef __STRING_INLINE
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#endif
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#endif /* No string inlines. */
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@ -15,9 +15,8 @@
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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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/* <bits/string.h> and <bits/string2.h> declare some extern inline
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functions. These functions are declared additionally here if
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inlining is not possible. */
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/* <bits/string.h> may declare some extern inline functions.
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These functions are defined here if inlining is not possible. */
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#undef __USE_STRING_INLINES
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#define __USE_STRING_INLINES
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@ -31,8 +30,6 @@
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#undef __NO_INLINE__
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#include <bits/string.h>
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#include <bits/string2.h>
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#include "shlib-compat.h"
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#if SHLIB_COMPAT (libc, GLIBC_2_1_1, GLIBC_2_25)
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@ -501,19 +501,11 @@ extern char *basename (const char *__filename) __THROW __nonnull ((1));
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__USE_STRING_INLINES
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is defined before including this header.
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- machine-independent optimizations which do not increase the
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code size significantly and which optimize mainly situations
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where one or more arguments are compile-time constants.
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These optimizations are used always when the compiler is
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taught to optimize.
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One can inhibit all optimizations by defining __NO_STRING_INLINES. */
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/* Get the machine-dependent optimizations (if any). */
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# include <bits/string.h>
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/* These are generic optimizations which do not add too much inline code. */
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# include <bits/string2.h>
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# endif
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# if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
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