1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
| | From ac6113cb0146494af7ecacbbdc6957ce501a40ec Mon Sep 17 00:00:00 2001
From: Martin Sebor <msebor@redhat.com>
Date: Tue, 22 Aug 2017 09:35:23 -0600
Subject: [PATCH 39/90] Declare ifunc resolver to return a pointer to the same
type as the target function to help GCC detect incompatibilities between the
two when it's enhanced to do so.
(cherry picked from commit ee4e992ebe5f9712faedeefe8958b67d61eaa0f2)
diff --git a/ChangeLog b/ChangeLog
index b53d8830a2..ec9b9f5edb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2017-08-22 Martin Sebor <msebor@redhat.com>
+
+ * include/libc-symbols.h (__ifunc_resolver): Declare resolver
+ to return a pointer to the same type as the target function.
+
2017-08-03 Alan Modra <amodra@gmail.com>
* sysdeps/powerpc/mod-tlsopt-powerpc.c: Extract from
diff --git a/include/libc-symbols.h b/include/libc-symbols.h
index 3310e3a678..c50f9adec2 100644
--- a/include/libc-symbols.h
+++ b/include/libc-symbols.h
@@ -782,7 +782,8 @@ for linking")
/* Helper / base macros for indirect function symbols. */
#define __ifunc_resolver(type_name, name, expr, arg, init, classifier) \
- classifier inhibit_stack_protector void *name##_ifunc (arg) \
+ classifier inhibit_stack_protector \
+ __typeof (type_name) *name##_ifunc (arg) \
{ \
init (); \
__typeof (type_name) *res = expr; \
|