Changeset bf0716f in mainline

Timestamp:

2025-01-24T23:50:30Z (11 days ago)

Author:

Matěj Volf <git@…>

Children:

328b89f

Parents:

eff458d

git-author:

Matěj Volf <git@…> (2025-01-24 21:46:38)

git-committer:

Matěj Volf <git@…> (2025-01-24 23:50:30)

Message:

explain why tcb_t is added at the end of tls allocation

File:

• uspace/lib/c/generic/rtld/module.c (modified) (1 diff)

uspace/lib/c/generic/rtld/module.c

@@ -403 +403 @@
         rtld->tls_size = ALIGN_UP(rtld->tls_size, rtld->tls_align);
 
-        /* Space for the TCB. */
+        /* Space for the TCB.
+         * Later, the TLS zero offset is equal to the pointer to tcb_t, so
+         * adding the sizeof(tcb_t) block AFTER we calculated the alignment
+         * of the remainder above is correct.
+         */
         rtld->tls_size += sizeof(tcb_t);
 #endif