glibc/SOURCES/glibc-rh1764231-1.patch
2021-09-16 08:48:07 +00:00

50 lines
1.3 KiB
Diff

commit 17432d7150bdab3bce2ea66c70ad6c920f54077a
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Jun 28 10:15:30 2019 +0200
support: Add xdlvsym function
diff --git a/support/xdlfcn.c b/support/xdlfcn.c
index f34bb059c00f27f7..b4a6b85649d181c8 100644
--- a/support/xdlfcn.c
+++ b/support/xdlfcn.c
@@ -48,6 +48,26 @@ xdlsym (void *handle, const char *symbol)
return sym;
}
+void *
+xdlvsym (void *handle, const char *symbol, const char *version)
+{
+ /* Clear any pending errors. */
+ dlerror ();
+
+ void *sym = dlvsym (handle, symbol, version);
+
+ if (sym == NULL)
+ {
+ const char *error = dlerror ();
+ if (error != NULL)
+ FAIL_EXIT1 ("error: dlvsym: %s\n", error);
+ /* If there was no error, we found a NULL symbol. Return the
+ NULL value in this case. */
+ }
+
+ return sym;
+}
+
void
xdlclose (void *handle)
{
diff --git a/support/xdlfcn.h b/support/xdlfcn.h
index 5ab7494e70924f52..ab1cbb3cb9bb1cc7 100644
--- a/support/xdlfcn.h
+++ b/support/xdlfcn.h
@@ -26,6 +26,7 @@ __BEGIN_DECLS
/* Each of these terminates process on failure with relevant error message. */
void *xdlopen (const char *filename, int flags);
void *xdlsym (void *handle, const char *symbol);
+void *xdlvsym (void *handle, const char *symbol, const char *version);
void xdlclose (void *handle);