Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ld.elf_so: tls_extern dynamic_defabuse_eager must xfail differently. 

If a symbol has already been resolved as dynamic TLS, any library
that tries to use it as static TLS cannot be dlopened.

XXX pullup-10
This commit is contained in:
riastradh 2023-06-02 19:08:01 +00:00
parent 3eeca426f5
commit 4dedd5fc26
1 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
tests/libexec/ld.elf_so/t_tls_extern.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: t_tls_extern.c,v 1.8 2023/06/01 23:47:24 riastradh Exp $ */
/* $NetBSD: t_tls_extern.c,v 1.9 2023/06/02 19:08:01 riastradh Exp $ */
/*-
* Copyright (c) 2023 The NetBSD Foundation, Inc.
@ -113,13 +113,20 @@ ATF_TC_BODY(dynamic_abusedefnoload, tc)
ATF_TC(dynamic_defabuse_eager);
ATF_TC_HEAD(dynamic_defabuse_eager, tc)
{
atf_tc_set_md_var(tc, "descr", "extern __thread for TLS works,"
atf_tc_set_md_var(tc, "descr", "dlopen refuses extern __thread for TLS,"
" loading dynamic def then static use eagerly");
}
ATF_TC_BODY(dynamic_defabuse_eager, tc)
{
tls_extern("libh_def_dynamic.so", "libh_abuse_dynamic.so",
DEF_USE_EAGER, /*xfail*/true);
void *def;
int *(*fdef)(void);
ATF_REQUIRE_DL(def = dlopen("libh_def_dynamic.so", 0));
ATF_REQUIRE_DL(fdef = dlsym(def, "fdef"));
(void)(*fdef)();
atf_tc_expect_fail("rtld fails to detect dynamic-then-static abuse");
ATF_CHECK_EQ_MSG(NULL, dlopen("libh_abuse_dynamic.so", 0),
"dlopen failed to detect static-then-dynamic abuse");
}
ATF_TC(dynamic_defabuse_lazy);