diff --git a/libexec/rtld-elf/rtld.c b/libexec/rtld-elf/rtld.c --- a/libexec/rtld-elf/rtld.c +++ b/libexec/rtld-elf/rtld.c @@ -172,7 +172,7 @@ static int symlook_obj1_sysv(SymLook *, const Obj_Entry *); static int symlook_obj1_gnu(SymLook *, const Obj_Entry *); static void *tls_get_addr_slow(Elf_Addr **, int, size_t, bool) __noinline; -static void trace_loaded_objects(Obj_Entry *); +static void trace_loaded_objects(Obj_Entry *, bool); static void unlink_object(Obj_Entry *); static void unload_object(Obj_Entry *, RtldLockState *lockstate); static void unref_dag(Obj_Entry *); @@ -872,7 +872,7 @@ dump_auxv(aux_info); if (ld_tracing) { /* We're done */ - trace_loaded_objects(obj_main); + trace_loaded_objects(obj_main, true); exit(0); } @@ -3834,7 +3834,7 @@ lock_release(rtld_bind_lock, lockstate); return (obj); trace: - trace_loaded_objects(obj); + trace_loaded_objects(obj, false); if (lockstate == &mlockstate) lock_release(rtld_bind_lock, lockstate); exit(0); @@ -4920,101 +4920,125 @@ } static void -trace_loaded_objects(Obj_Entry *obj) +trace_calc_fmts(const char **main_local, const char **fmt1, const char **fmt2) { - const char *fmt1, *fmt2, *fmt, *main_local, *list_containers; - int c; + *main_local = ld_get_env_var(LD_TRACE_LOADED_OBJECTS_PROGNAME); + if (*main_local == NULL) + *main_local = ""; - if ((main_local = ld_get_env_var(LD_TRACE_LOADED_OBJECTS_PROGNAME)) == - NULL) - main_local = ""; + *fmt1 = ld_get_env_var(LD_TRACE_LOADED_OBJECTS_FMT1); + if (*fmt1 == NULL) + *fmt1 = "\t%o => %p (%x)\n"; - if ((fmt1 = ld_get_env_var(LD_TRACE_LOADED_OBJECTS_FMT1)) == NULL) - fmt1 = "\t%o => %p (%x)\n"; - - if ((fmt2 = ld_get_env_var(LD_TRACE_LOADED_OBJECTS_FMT2)) == NULL) - fmt2 = "\t%o (%x)\n"; - - list_containers = ld_get_env_var(LD_TRACE_LOADED_OBJECTS_ALL); - - for (; obj != NULL; obj = TAILQ_NEXT(obj, next)) { - Needed_Entry *needed; - const char *name, *path; - bool is_lib; - - if (obj->marker) - continue; - if (list_containers && obj->needed != NULL) - rtld_printf("%s:\n", obj->path); - for (needed = obj->needed; needed; needed = needed->next) { - if (needed->obj != NULL) { - if (needed->obj->traced && !list_containers) - continue; - needed->obj->traced = true; - path = needed->obj->path; - } else - path = "not found"; + *fmt2 = ld_get_env_var(LD_TRACE_LOADED_OBJECTS_FMT2); + if (*fmt2 == NULL) + *fmt2 = "\t%o (%x)\n"; +} - name = obj->strtab + needed->name; - is_lib = strncmp(name, "lib", 3) == 0; /* XXX - bogus */ +static void +trace_print_obj(Obj_Entry *obj, const char *name, const char *path, + const char *main_local, const char *fmt1, const char *fmt2) +{ + const char *fmt; + int c; - fmt = is_lib ? fmt1 : fmt2; - while ((c = *fmt++) != '\0') { + fmt = strncmp(name, "lib", 3) == 0 ? fmt1 : fmt2; /* XXX bogus */ + while ((c = *fmt++) != '\0') { switch (c) { default: - rtld_putchar(c); - continue; - case '\\': - switch (c = *fmt) { - case '\0': + rtld_putchar(c); continue; - case 'n': - rtld_putchar('\n'); - break; - case 't': - rtld_putchar('\t'); + case '\\': + switch (c = *fmt) { + case '\0': + continue; + case 'n': + rtld_putchar('\n'); + break; + case 't': + rtld_putchar('\t'); + break; + } break; - } - break; case '%': - switch (c = *fmt) { - case '\0': - continue; - case '%': - default: - rtld_putchar(c); - break; - case 'A': - rtld_putstr(main_local); - break; - case 'a': - rtld_putstr(obj_main->path); - break; - case 'o': - rtld_putstr(name); - break; -#if 0 - case 'm': - rtld_printf("%d", sodp->sod_major); - break; - case 'n': - rtld_printf("%d", sodp->sod_minor); - break; -#endif - case 'p': - rtld_putstr(path); - break; - case 'x': - rtld_printf("%p", needed->obj ? needed->obj->mapbase : - 0); + switch (c = *fmt) { + case '\0': + continue; + case '%': + default: + rtld_putchar(c); + break; + case 'A': + rtld_putstr(main_local); + break; + case 'a': + rtld_putstr(obj_main->path); + break; + case 'o': + rtld_putstr(name); + break; + case 'p': + rtld_putstr(path); + break; + case 'x': + rtld_printf("%p", obj != NULL ? + obj->mapbase : NULL); + break; + } break; - } - break; } ++fmt; - } } - } +} + +static void +trace_loaded_objects(Obj_Entry *obj, bool show_preload) +{ + const char *fmt1, *fmt2, *main_local, *list_containers; + const char *name, *path; + bool first_spurious; + + trace_calc_fmts(&main_local, &fmt1, &fmt2); + list_containers = ld_get_env_var(LD_TRACE_LOADED_OBJECTS_ALL); + + for (; obj != NULL; obj = TAILQ_NEXT(obj, next)) { + Needed_Entry *needed; + + if (obj->marker) + continue; + if (list_containers && obj->needed != NULL) + rtld_printf("%s:\n", obj->path); + for (needed = obj->needed; needed; needed = needed->next) { + if (needed->obj != NULL) { + if (needed->obj->traced && !list_containers) + continue; + needed->obj->traced = true; + path = needed->obj->path; + } else + path = "not found"; + + name = obj->strtab + needed->name; + trace_print_obj(obj, name, path, main_local, + fmt1, fmt2); + } + } + + if (show_preload) { + first_spurious = true; + TAILQ_FOREACH(obj, &obj_list, next) { + if (obj->marker || obj == obj_main || obj->traced) + continue; + + if (first_spurious) { + rtld_printf("[preloaded]\n"); + first_spurious = false; + } + Name_Entry *fname = STAILQ_FIRST(&obj->names); + name = fname == NULL ? "" : fname->name; + trace_print_obj(obj, name, obj->path, main_local, + fmt1, fmt2); + } + } } /*