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When looking up the symbol by dlsym, look it not only in the object
given as dso handle, but also in the implicit dependencies of that dso. Also, const-ify the read-only parameter objlist of symlook_list. Reported by: "Simon 'corecode' Schubert" <corecode at fs ei tum de> Approved by: kan (mentor) X-MFC-After: 6.2
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=162156
@ -123,7 +123,7 @@ static const void **get_program_var_addr(const char *);
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static void set_program_var(const char *, const void *);
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static const Elf_Sym *symlook_default(const char *, unsigned long,
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const Obj_Entry *, const Obj_Entry **, const Ver_Entry *, int);
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static const Elf_Sym *symlook_list(const char *, unsigned long, Objlist *,
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static const Elf_Sym *symlook_list(const char *, unsigned long, const Objlist *,
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const Obj_Entry **, const Ver_Entry *, int flags, DoneList *);
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static void trace_loaded_objects(Obj_Entry *obj);
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static void unlink_object(Obj_Entry *);
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@ -1851,21 +1851,18 @@ do_dlsym(void *handle, const char *name, void *retaddr, const Ver_Entry *ve,
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return NULL;
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}
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DoneList donelist;
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const Objlist *srch_list;
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donelist_init(&donelist);
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if (obj->mainprog) {
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DoneList donelist;
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/* Search main program and all libraries loaded by it. */
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donelist_init(&donelist);
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def = symlook_list(name, hash, &list_main, &defobj, ve, flags,
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&donelist);
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srch_list = &list_main;
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} else {
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/*
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* XXX - This isn't correct. The search should include the whole
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* DAG rooted at the given object.
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*/
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def = symlook_obj(name, hash, obj, ve, flags);
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defobj = obj;
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/* Search the whole DAG rooted at the given object. */
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srch_list = &(obj->dagmembers);
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}
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def = symlook_list(name, hash, srch_list, &defobj, ve, flags,
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&donelist);
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}
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if (def != NULL) {
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@ -2336,7 +2333,7 @@ symlook_default(const char *name, unsigned long hash, const Obj_Entry *refobj,
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}
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static const Elf_Sym *
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symlook_list(const char *name, unsigned long hash, Objlist *objlist,
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symlook_list(const char *name, unsigned long hash, const Objlist *objlist,
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const Obj_Entry **defobj_out, const Ver_Entry *ventry, int flags,
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DoneList *dlp)
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{
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