From ae65d4f3c3995279ca458c460ebf8bab1885fa03 Mon Sep 17 00:00:00 2001 From: Wilco Dijkstra Date: Mon, 13 Mar 2017 18:42:35 +0000 Subject: Remove the str(n)dup inlines from string/bits/string2.h. Although inlining calls with constant strings shows a small (~10%) performance gain, strdup is typically used in error reporting code, so not performance critical. Remove the now unused __need_malloc_and_calloc related defines from stdlib.h. Rename existing uses of str(n)dup to __str(n)dup so it no longer needs to be redirected to a builtin. Also building GLIBC with -Os now no longer shows localplt or linkname space failures (partial fix for BZ #15105 and BZ #19463). [BZ #15105] [BZ #19463] * elf/dl-cache.c (_dl_load_cache_lookup): Use __strdup. * inet/rcmd.c (rcmd_af): Likewise. * inet/rexec.c (rexec_af): Likewise. * intl/dcigettext.c (_LIBC): Likewise. * intl/finddomain.c (_nl_find_domain): Use strdup expansion. * locale/loadarchive.c (_nl_load_locale_from_archive): Use __strdup. * locale/setlocale.c (setlocale): Likewise. * posix/spawn_faction_addopen.c (posix_spawn_file_actions_addopen): Likewise. * stdlib/putenv.c (putenv): Use __strndup. * sunrpc/svc_simple.c (__registerrpc): Use __strdup. * sysdeps/posix/getaddrinfo.c (gaih_inet): Use __strdup/__strndup. * include/stdlib.h (__need_malloc_and_calloc): Remove uses. (__Need_M_And_C) Remove define/undef. * stdlib/stdlib.h (__need_malloc_and_calloc): Remove uses. (__malloc_and_calloc_defined): Remove define. * string/bits/string2.h (__strdup): Remove define. (strdup): Likewise. (__strndup): Likewise. (strndup): Likewise. --- string/bits/string2.h | 59 --------------------------------------------------- 1 file changed, 59 deletions(-) (limited to 'string') diff --git a/string/bits/string2.h b/string/bits/string2.h index 2d4eb41..6a26e2b 100644 --- a/string/bits/string2.h +++ b/string/bits/string2.h @@ -112,65 +112,6 @@ #endif -/* We need the memory allocation functions for inline strdup(). - Referring to stdlib.h (even minimally) is not allowed - in any of the tight standards compliant modes. */ -#ifdef __USE_MISC - -# if !defined _HAVE_STRING_ARCH_strdup || !defined _HAVE_STRING_ARCH_strndup -# define __need_malloc_and_calloc -# include -# endif - -# ifndef _HAVE_STRING_ARCH_strdup - -extern char *__strdup (const char *__string) __THROW __attribute_malloc__; -# define __strdup(s) \ - (__extension__ (__builtin_constant_p (s) && __string2_1bptr_p (s) \ - ? (((const char *) (s))[0] == '\0' \ - ? (char *) calloc ((size_t) 1, (size_t) 1) \ - : ({ size_t __len = strlen (s) + 1; \ - char *__retval = (char *) malloc (__len); \ - if (__retval != NULL) \ - __retval = (char *) memcpy (__retval, s, __len); \ - __retval; })) \ - : __strdup (s))) - -# if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 -# define strdup(s) __strdup (s) -# endif -# endif - -# ifndef _HAVE_STRING_ARCH_strndup - -extern char *__strndup (const char *__string, size_t __n) - __THROW __attribute_malloc__; -# define __strndup(s, n) \ - (__extension__ (__builtin_constant_p (s) && __string2_1bptr_p (s) \ - ? (((const char *) (s))[0] == '\0' \ - ? (char *) calloc ((size_t) 1, (size_t) 1) \ - : ({ size_t __len = strlen (s) + 1; \ - size_t __n = (n); \ - char *__retval; \ - if (__n < __len) \ - __len = __n + 1; \ - __retval = (char *) malloc (__len); \ - if (__retval != NULL) \ - { \ - __retval[__len - 1] = '\0'; \ - __retval = (char *) memcpy (__retval, s, \ - __len - 1); \ - } \ - __retval; })) \ - : __strndup (s, n))) - -# ifdef __USE_XOPEN2K8 -# define strndup(s, n) __strndup (s, n) -# endif -# endif - -#endif /* Use misc. or use GNU. */ - #ifndef _FORCE_INLINES # undef __STRING_INLINE #endif -- cgit v1.1