diff options
| -rw-r--r-- | ChangeLog | 14 | ||||
| -rw-r--r-- | config.h.in | 3 | ||||
| -rwxr-xr-x | configure | 4 | ||||
| -rw-r--r-- | configure.in | 3 | ||||
| -rw-r--r-- | elf/Makefile | 9 | ||||
| -rw-r--r-- | elf/dl-load.c | 12 | ||||
| -rw-r--r-- | elf/dl-open.c | 4 | ||||
| -rw-r--r-- | elf/rtld.c | 2 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/dl-cache.c | 28 |
9 files changed, 40 insertions, 39 deletions
@@ -1,3 +1,17 @@ +2012-10-03 Roland McGrath <roland@hack.frob.com> + + * sysdeps/mach/hurd/dl-cache.c: File removed. + * config.h.in (USE_LDCONFIG): New #undef. + * configure.in (use_ldconfig): If set, define USE_LDCONFIG. + * configure: Regenerated. + * elf/Makefile (dl-routines): Add dl-cache only under + [$(use-ldconfig) = yes]. + * elf/dl-load.c (_dl_map_object): Conditionalize code consulting the + cache on [USE_LDCONFIG]. + * elf/dl-open.c (_dl_open): Call _dl_unload_cache only under + [USE_LDCONFIG]. + * elf/rtld.c (dl_main): Likewise. + 2012-10-03 Pino Toscano <toscano.pino@tiscali.it> * sysdeps/posix/sysconf.c (__sysconf): Return 0 also for diff --git a/config.h.in b/config.h.in index 10a9925..5f9f3c3 100644 --- a/config.h.in +++ b/config.h.in @@ -177,6 +177,9 @@ /* Define if library functions should try to contact the nscd daemon. */ #undef USE_NSCD +/* Define if the dynamic linker should consult an ld.so.cache file. */ +#undef USE_LDCONFIG + /* */ @@ -7493,6 +7493,10 @@ fi +if test x$use_ldconfig = xyes; then + $as_echo "#define USE_LDCONFIG 1" >>confdefs.h + +fi diff --git a/configure.in b/configure.in index 878bf1a..b9b5703 100644 --- a/configure.in +++ b/configure.in @@ -2156,6 +2156,9 @@ AC_SUBST(libc_cv_cc_nofma) AC_SUBST(libc_cv_as_i686) AC_SUBST(libc_cv_sparc_as_vis3) +if test x$use_ldconfig = xyes; then + AC_DEFINE(USE_LDCONFIG) +fi AC_SUBST(use_ldconfig) AC_SUBST(ldd_rewrite_script) diff --git a/elf/Makefile b/elf/Makefile index 2eb12d3..58cc15c 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -19,6 +19,8 @@ subdir := elf +include ../Makeconfig + headers = elf.h bits/elfclass.h link.h bits/link.h routines = $(dl-routines) dl-support dl-iteratephdr \ dl-addr enbl-secure dl-profstub \ @@ -26,10 +28,13 @@ routines = $(dl-routines) dl-support dl-iteratephdr \ # The core dynamic linking functions are in libc for the static and # profiled libraries. -dl-routines = $(addprefix dl-,load cache lookup object reloc deps \ +dl-routines = $(addprefix dl-,load lookup object reloc deps \ runtime error init fini debug misc \ version profile conflict tls origin scope \ execstack caller open close trampoline) +ifeq (yes,$(use-ldconfig)) +dl-routines += dl-cache +endif all-dl-routines = $(dl-routines) $(sysdep-dl-routines) # But they are absent from the shared libc, because that code is in ld.so. elide-routines.os = $(all-dl-routines) dl-support enbl-secure dl-origin \ @@ -45,8 +50,6 @@ CFLAGS-dl-runtime.c = -fexceptions -fasynchronous-unwind-tables CFLAGS-dl-lookup.c = -fexceptions -fasynchronous-unwind-tables CFLAGS-dl-iterate-phdr.c = $(uses-callbacks) -include ../Makeconfig - ifeq ($(unwind-find-fde),yes) routines += unwind-dw2-fde-glibc shared-only-routines += unwind-dw2-fde-glibc diff --git a/elf/dl-load.c b/elf/dl-load.c index ea31417..0bfa74a 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -2197,6 +2197,7 @@ _dl_map_object (struct link_map *loader, const char *name, &loader->l_runpath_dirs, &realname, &fb, loader, LA_SER_RUNPATH, &found_other_class); +#ifdef USE_LDCONFIG if (fd == -1 && (__builtin_expect (! (mode & __RTLD_SECURE), 1) || ! INTUSE(__libc_enable_secure)) @@ -2208,22 +2209,22 @@ _dl_map_object (struct link_map *loader, const char *name, if (cached != NULL) { -#ifdef SHARED +# ifdef SHARED // XXX Correct to unconditionally default to namespace 0? l = (loader ?: GL(dl_ns)[LM_ID_BASE]._ns_loaded ?: &GL(dl_rtld_map)); -#else +# else l = loader; -#endif +# endif /* If the loader has the DF_1_NODEFLIB flag set we must not use a cache entry from any of these directories. */ if ( -#ifndef SHARED +# ifndef SHARED /* 'l' is always != NULL for dynamically linked objects. */ l != NULL && -#endif +# endif __builtin_expect (l->l_flags_1 & DF_1_NODEFLIB, 0)) { const char *dirp = system_dirs; @@ -2261,6 +2262,7 @@ _dl_map_object (struct link_map *loader, const char *name, } } } +#endif /* Finally, try the default path. */ if (fd == -1 diff --git a/elf/dl-open.c b/elf/dl-open.c index 0bc447a..5149e57 100644 --- a/elf/dl-open.c +++ b/elf/dl-open.c @@ -654,8 +654,8 @@ no more namespaces available for dlmopen()")); int errcode = _dl_catch_error (&objname, &errstring, &malloced, dl_open_worker, &args); -#ifndef MAP_COPY - /* We must munmap() the cache file. */ +#if defined USE_LDCONFIG && !defined MAP_COPY + /* We must unmap the cache file. */ _dl_unload_cache (); #endif @@ -2400,7 +2400,7 @@ ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n", _dl_debug_state (); LIBC_PROBE (init_complete, 2, LM_ID_BASE, r); -#ifndef MAP_COPY +#if defined USE_LDCONFIG && !defined MAP_COPY /* We must munmap() the cache file. */ _dl_unload_cache (); #endif diff --git a/sysdeps/mach/hurd/dl-cache.c b/sysdeps/mach/hurd/dl-cache.c deleted file mode 100644 index 5c01c3d..0000000 --- a/sysdeps/mach/hurd/dl-cache.c +++ /dev/null @@ -1,28 +0,0 @@ -/* Stubby version of dl-cache; the Hurd doesn't support this "feature". - Copyright (C) 1996, 1997 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/>. */ - -const char * -_dl_load_cache_lookup (const char *name) -{ - return 0; -} - -void -_dl_unload_cache (void) -{ -} |