@@ -25,21 +25,14 @@
symbol in libpthread, but the historical ABI requires it. For static
linking, there is no need to provide anything here--the libc version
will be linked in. For shared library ABI compatibility, there must be
- longjmp and siglongjmp symbols in libpthread.so; so we define them using
- IFUNC to redirect to the libc function. */
+ longjmp and siglongjmp symbols in libpthread.so.
-#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_22)
-
-# if HAVE_IFUNC
-
-# undef INIT_ARCH
-# define INIT_ARCH()
-# define DEFINE_LONGJMP(name) libc_ifunc (name, &__libc_longjmp)
-
-extern __typeof(longjmp) longjmp_ifunc;
-extern __typeof(siglongjmp) siglongjmp_ifunc;
+ With an IFUNC resolver, it would be possible to avoid the
+ indirection, but the IFUNC resolver might run before the
+ __libc_longjmp symbol has been relocated, in which case the IFUNC
+ resolver would not be able to provide the correct address. */
-# else /* !HAVE_IFUNC */
+#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_22)
static void __attribute__ ((noreturn, used))
longjmp_compat (jmp_buf env, int val)
@@ -47,14 +40,10 @@ longjmp_compat (jmp_buf env, int val)
__libc_longjmp (env, val);
}
-# define DEFINE_LONGJMP(name) strong_alias (longjmp_compat, name)
-
-# endif /* HAVE_IFUNC */
-
-DEFINE_LONGJMP (longjmp_ifunc)
-compat_symbol (libpthread, longjmp_ifunc, longjmp, GLIBC_2_0);
+strong_alias (longjmp_compat, longjmp_alias)
+compat_symbol (libpthread, longjmp_alias, longjmp, GLIBC_2_0);
-strong_alias (longjmp_ifunc, siglongjmp_ifunc)
-compat_symbol (libpthread, siglongjmp_ifunc, siglongjmp, GLIBC_2_0);
+strong_alias (longjmp_compat, siglongjmp_alias)
+compat_symbol (libpthread, siglongjmp_alias, siglongjmp, GLIBC_2_0);
#endif