Changeset 31ea2a7 in mainline for uspace/lib/c/generic/libc.c

Timestamp:

2025-01-26T17:53:49Z (5 months ago)

Author:

Matěj Volf <git@…>

Children:

f215c6ef

Parents:

eff458d

git-author:

Matěj Volf <git@…> (2025-01-25 21:36:13)

git-committer:

Matěj Volf <git@…> (2025-01-26 17:53:49)

Message:

init RTLD runtime at load time even for statically linked binaries

before this, main_fibril of a statically linked binary had wrong thread-local storage

please see PR description for an elaborate explanation of what and why was wrong

File:

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

uspace/lib/c/generic/libc.c

@@ -96 +96 @@
 
 #ifdef CONFIG_RTLD
-        if (__pcb != NULL && __pcb->rtld_runtime != NULL) {
+        if (__pcb == NULL) {
+                /*
+                 * A binary loaded by kernel, not the loader.
+                 * Init some rudimentary rtld runtime environment.
+                 */
+                errno_t rtld_init_result = rtld_init_static();
+                assert(rtld_init_result == EOK);
+        } else {
+                assert(__pcb->rtld_runtime != NULL);
                 runtime_env = (rtld_t *) __pcb->rtld_runtime;
-        } else {
-                if (rtld_init_static() != EOK)
-                        abort();
         }
 #endif