remove remnants of support for running in no-thread-pointer mode
since 1.1.0, musl has nominally required a thread pointer to be setup.
most of the remaining code that was checking for its availability was
doing so for the sake of being usable by the dynamic linker. as of
commit 71f099cb7db821c51d8f39dfac622c61e54d794c, this is no longer
necessary; the thread pointer is now valid before any libc code
(outside of dynamic linker bootstrap functions) runs.
this commit essentially concludes "phase 3" of the "transition path
for removing lazy init of thread pointer" project that began during
the 1.1.0 release cycle.
diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c
index 31f5939..8b15daa 100644
--- a/src/ldso/dynlink.c
+++ b/src/ldso/dynlink.c
@@ -810,12 +810,6 @@
/* Add a shortname only if name arg was not an explicit pathname. */
if (pathname != name) p->shortname = strrchr(p->name, '/')+1;
if (p->tls_image) {
- if (runtime && !libc.has_thread_pointer) {
- munmap(map, p->map_len);
- free(p);
- errno = ENOSYS;
- return 0;
- }
p->tls_id = ++tls_cnt;
tls_align = MAXP2(tls_align, p->tls_align);
#ifdef TLS_ABOVE_TP
@@ -1165,8 +1159,7 @@
* thread pointer at runtime. */
libc.tls_size = sizeof builtin_tls;
if (__init_tp(__copy_tls((void *)builtin_tls)) < 0) {
- dprintf(2, "%s: Thread-local storage not supported by kernel.\n", argv[0]);
- _exit(127);
+ a_crash();
}
/* Find aux vector just past environ[] */
@@ -1352,8 +1345,7 @@
_exit(127);
}
if (__init_tp(__copy_tls(initial_tls)) < 0) {
- dprintf(2, "%s: Failed to switch to new thread pointer.\n", argv[0]);
- _exit(127);
+ a_crash();
}
} else {
size_t tmp_tls_size = libc.tls_size;