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* elf/dl-lookup.c (_dl_lookup_symbol): Undefined symbol is no

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error if weak.

	* elf/Makefile (default-rpath): New variable.
	(CPPFLAGS): Append -DDEFAULT_RPATH=....
	* elf/dl-load.c (_dl_map_object): Use DEFAULT_RPATH instead of
	hard-coded "/lib:/usr/lib".
This commit is contained in:
Roland McGrath 1995-11-16 02:37:06 +00:00
parent ec967c06ac
commit 8738e7f8b0
4 changed files with 21 additions and 3 deletions
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8
ChangeLog
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@ -1,5 +1,13 @@
Wed Nov 15 19:22:07 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* elf/dl-lookup.c (_dl_lookup_symbol): Undefined symbol is no
error if weak.
* elf/Makefile (default-rpath): New variable.
(CPPFLAGS): Append -DDEFAULT_RPATH=....
* elf/dl-load.c (_dl_map_object): Use DEFAULT_RPATH instead of
hard-coded "/lib:/usr/lib".
* sysdeps/mach/hurd/dl-sysdep.c: Include _itoa.h from stdio-common
instead of stdio.
(_dl_sysdep_start): If passed user entry is zero and

10
elf/Makefile
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@ -50,6 +50,16 @@ endif
include ../Rules
# Choose the default search path for the dynamic linker based on
# where we will install libraries.
ifneq ($(libdir),$(slibdir))
default-rpath = $(slibdir):$(libdir)
else
default-rpath = $(libdir)
endif
CPPFLAGS += -DDEFAULT_RPATH='"$(default-rpath)"'
# Link together the dynamic linker into a single relocatable object.
# We use this to produce both the ABI-compliant and Linux-compatible
# dynamic linker shared objects below.

2
elf/dl-load.c
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@ -139,7 +139,7 @@ _dl_map_object (struct link_map *loader, const char *name)
if (fd == -1 && ! _dl_secure)
trypath (getenv ("LD_LIBRARY_PATH"));
if (fd == -1)
trypath ("/lib:/usr/lib");
trypath (DEFAULT_RPATH);
}
else
{

4
elf/dl-lookup.c
View File

@ -22,7 +22,7 @@ Cambridge, MA 02139, USA. */
#include <link.h>
#include <assert.h>
/* Search loaded objects' symbol tables for a definition of
/* Search loaded objects' symbol tables for a definition of
the symbol UNDEF_NAME. If NOSELF is nonzero, then *REF
cannot satisfy the reference itself; some different binding
must be found. */
@ -100,7 +100,7 @@ _dl_lookup_symbol (const char *undef_name, const Elf32_Sym **ref,
}
}
if (weak_value.s == NULL)
if (weak_value.s == NULL && ELF32_ST_BIND ((*ref)->st_info) != STB_WEAK)
{
const char msg[] = "undefined symbol: ";
char buf[sizeof msg + strlen (undef_name)];