diff options
Diffstat (limited to 'elf/rtld.c')
-rw-r--r-- | elf/rtld.c | 55 |
1 files changed, 15 insertions, 40 deletions
diff --git a/elf/rtld.c b/elf/rtld.c index 511d19cb15..6dc68226db 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -124,7 +124,7 @@ dl_main (const Elf32_Phdr *phdr, Elf32_Addr *user_entry) { const Elf32_Phdr *ph; - struct link_map *l, *last, *before_rtld; + struct link_map *l; const char *interpreter_name; int lazy; int list_only = 0; @@ -250,44 +250,19 @@ of this helper program; chances are you did not intend to run this program.\n", l->l_next = &rtld_map; rtld_map.l_prev = l; - /* Now process all the DT_NEEDED entries and map in the objects. - Each new link_map will go on the end of the chain, so we will - come across it later in the loop to map in its dependencies. */ - before_rtld = NULL; - for (l = _dl_loaded; l; l = l->l_next) - { - if (l->l_info[DT_NEEDED]) - { - const char *strtab - = (void *) l->l_addr + l->l_info[DT_STRTAB]->d_un.d_ptr; - const Elf32_Dyn *d; - last = l; - for (d = l->l_ld; d->d_tag != DT_NULL; ++d) - if (d->d_tag == DT_NEEDED) - { - struct link_map *new; - new = _dl_map_object (l, strtab + d->d_un.d_val); - if (!before_rtld && new == &rtld_map) - before_rtld = last; - last = new; - } - } - l->l_deps_loaded = 1; - } + /* Load all the libraries specified by DT_NEEDED entries. */ + _dl_map_object_deps (l); - /* If any DT_NEEDED entry referred to the interpreter object itself, - reorder the list so it appears after its dependent. If not, - remove it from the maps we will use for symbol resolution. */ - rtld_map.l_prev->l_next = rtld_map.l_next; - if (rtld_map.l_next) - rtld_map.l_next->l_prev = rtld_map.l_prev; - if (before_rtld) + /* XXX if kept, move it so l_next list is in dep order because + it will determine gdb's search order. + Perhaps do this always, so later dlopen by name finds it? + XXX But then gdb always considers it present. */ + if (rtld_map.l_opencount == 0) { - rtld_map.l_prev = before_rtld; - rtld_map.l_next = before_rtld->l_next; - before_rtld->l_next = &rtld_map; - if (rtld_map.l_next) - rtld_map.l_next->l_prev = &rtld_map; + /* No DT_NEEDED entry referred to the interpreter object itself, + so remove it from the list of visible objects. */ + rtld_map.l_prev->l_next = rtld_map.l_next; + rtld_map.l_next->l_prev = rtld_map.l_prev; } if (list_only) @@ -316,9 +291,9 @@ of this helper program; chances are you did not intend to run this program.\n", for (i = 1; i < _dl_argc; ++i) { const Elf32_Sym *ref = NULL; - Elf32_Addr loadbase = _dl_lookup_symbol (_dl_argv[i], &ref, - _dl_loaded, "argument", - 0, 0); + struct link_map *scope[2] ={ _dl_loaded, NULL }; + Elf32_Addr loadbase + = _dl_lookup_symbol (_dl_argv[i], &ref, scope, "argument", 0, 0); char buf[20], *bp; buf[sizeof buf - 1] = '\0'; bp = _itoa (ref->st_value, &buf[sizeof buf - 1], 16, 0); |