diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/Makefile | 30 | ||||
| -rw-r--r-- | elf/dl-load.c | 13 | ||||
| -rw-r--r-- | elf/dl-support.c | 4 | ||||
| -rw-r--r-- | elf/link.h | 4 | ||||
| -rw-r--r-- | elf/rtld.c | 12 |
5 files changed, 35 insertions, 28 deletions
diff --git a/elf/Makefile b/elf/Makefile index 093fc09..739c230 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -35,6 +35,7 @@ elide-routines.os = $(dl-routines) dl-support enbl-secure # ld.so uses those routines, plus some special stuff for being the program # interpreter and operating independent of libc. rtld-routines := rtld $(dl-routines) dl-sysdep dl-minimal +ld-map = $(libc-map) distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \ dl-hash.h soinit.c sofini.c ldd.sh.in ldd.bash.in eval.c \ genrtldtbl.awk atomicity.h dl-procinfo.h @@ -88,22 +89,22 @@ $(objpfx)librtld.os: $(objpfx)dl-allobjs.os $(common-objpfx)libc_pic.a # Do we need a linker script? rtld-ldscript-in := $(firstword $(wildcard $(+sysdep_dirs:%=%/rtld-ldscript.in))) -ifeq ($(versioning),yes) -RTLD-VERSIONS = -Wl,--version-script=$(libc-map) -endif - ifneq (,$(rtld-ldscript-in)) -LDFLAGS-rtld = -T $(objpfx)rtld-ldscript +rtld-ldscript = $(objpfx)rtld-ldscript +generated += rtld-ldscript + +LDFLAGS-rtld = -T $(rtld-ldscript) +before-compile += $(rtld-ldscript) -before-compile += $(objpfx)rtld-ldscript rtld-parms = $(wildcard $(+sysdep_dirs:%=%/rtld-parms)) include $(rtld-parms) -generated += rtld-ldscript -$(objpfx)rtld-ldscript: $(rtld-ldscript-in) $(rtld-parms) + +$(rtld-ldscript): $(rtld-ldscript-in) $(rtld-parms) sed -e 's#@@rtld-oformat@@#$(rtld-oformat)#' \ -e 's#@@rtld-arch@@#$(rtld-arch)#' \ -e 's#@@rtld-entry@@#$(rtld-entry)#' \ -e 's#@@rtld-base@@#$(rtld-base)#' $< >$@ +endif $(objpfx)ld.so: $(objpfx)librtld.os $(objpfx)rtld-ldscript $(rtld-link) -Wl,-soname=$(rtld-installed-name) @@ -111,18 +112,9 @@ $(objpfx)ld.so: $(objpfx)librtld.os $(objpfx)rtld-ldscript define rtld-link $(LINK.o) -nostdlib -nostartfiles -shared -o $@ \ -Wl,-rpath=$(default-rpath) $(LDFLAGS-rtld) \ - $(filter-out $(objpfx)rtld-ldscript,$^) \ - $(RTLD-VERSIONS) + $(filter-out $(rtld-ldscript) $($(@F:.so=)-map),$^) \ + $(load-map-file:%=-Wl,--version-script=%) endef -else -$(objpfx)ld.so: $(objpfx)librtld.os - $(rtld-link) -Wl,-soname=$(rtld-installed-name) - -define rtld-link -$(LINK.o) -nostdlib -nostartfiles -shared -o $@ \ - -Wl,-rpath=$(default-rpath) $^ $(RTLD-VERSIONS) -endef -endif # The dl code in the static libc needs a default library path. CFLAGS-dl-support.c = -D'DEFAULT_RPATH="$(default-rpath)"' diff --git a/elf/dl-load.c b/elf/dl-load.c index 91b8c2a..73cafcc 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -1,5 +1,5 @@ /* Map in a shared object's segments from the file. - Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1997, 1998 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 @@ -309,7 +309,7 @@ decompose_rpath (const char *rpath, size_t additional_room) void -_dl_init_paths (void) +_dl_init_paths (const char *llp) { static const char *trusted_dirs[] = { @@ -325,10 +325,15 @@ _dl_init_paths (void) variable. */ struct link_map *l; - /* First determine how many elements the LD_LIBRARY_PATH contents has. */ - const char *llp = getenv ("LD_LIBRARY_PATH"); + /* Number of elements in the library path. */ size_t nllp; + /* If the user has not specified a library path consider the environment + variable. */ + if (llp == NULL) + llp = getenv ("LD_LIBRARY_PATH"); + + /* First determine how many elements the LD_LIBRARY_PATH contents has. */ if (llp != NULL && *llp != '\0') { /* Simply count the number of colons. */ diff --git a/elf/dl-support.c b/elf/dl-support.c index c103d0e..5868656 100644 --- a/elf/dl-support.c +++ b/elf/dl-support.c @@ -1,5 +1,5 @@ /* Support for dynamic linking code in static libc. - Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 1998 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 @@ -58,7 +58,7 @@ non_dynamic_init (void) /* Initialize the data structures for the search paths for shared objects. */ - _dl_init_paths (); + _dl_init_paths (NULL); #ifdef DL_PLATFORM_INIT DL_PLATFORM_INIT; @@ -1,5 +1,5 @@ /* Run-time dynamic linker data structures for loaded ELF shared objects. - Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1997, 1998 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 @@ -443,7 +443,7 @@ extern void _dl_debug_state (void); extern struct r_debug *_dl_debug_initialize (ElfW(Addr) ldbase); /* Initialize the basic data structure for the search paths. */ -extern void _dl_init_paths (void); +extern void _dl_init_paths (const char *library_path); /* Gather the information needed to install the profiling tables and start the timers. */ @@ -264,6 +264,7 @@ dl_main (const ElfW(Phdr) *phdr, size_t file_size; char *file; int has_interp = 0; + const char *library_path = NULL; /* Overwrites LD_LIBRARY_PATH if given. */ /* Test whether we want to see the content of the auxiliary array passed up from the kernel. */ @@ -343,6 +344,15 @@ dl_main (const ElfW(Phdr) *phdr, --_dl_argc; ++_dl_argv; } + else if (! strcmp (_dl_argv[1], "--library-path") + && _dl_argc > 2) + { + library_path = _dl_argv[2]; + + _dl_skip_args += 2; + _dl_argc -= 2; + _dl_argv += 2; + } else break; @@ -484,7 +494,7 @@ of this helper program; chances are you did not intend to run this program.\n", /* Initialize the data structures for the search paths for shared objects. */ - _dl_init_paths (); + _dl_init_paths (library_path); preloadlist = getenv ("LD_PRELOAD"); if (preloadlist) |