blob: f35a56cc0bd9b842f26b403fedf1ad87105ef704 (
plain)
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
|
This trivial patch causes gcc to emit a warning whenever
it generates a trampoline. These are otherwise hard to
locate. It is rigged to default ON - to have it default
to OFF remove the text 'Init(1)' from the common.opt
patch, leaving just 'Common Var(warn_trampolines)'.
Kevin F. Quinn <kevquinn@gentoo.org> 17 Jan 2006
--- gcc/common.opt
+++ gcc/common.opt
@@ -141,6 +141,10 @@
Common Var(warn_system_headers)
Do not suppress warnings from system headers
+Wtrampolines
+Common Var(warn_trampolines) Init(1)
+Warn whenever a trampoline is generated
+
Wuninitialized
Common Var(warn_uninitialized)
Warn about uninitialized automatic variables
--- gcc/builtins.c
+++ gcc/builtins.c
@@ -5150,6 +5150,10 @@
targetm.calls.trampoline_init (m_tramp, t_func, r_chain);
trampolines_created = 1;
+
+ if (warn_trampolines)
+ warning (OPT_Wtrampolines, "generating trampoline in object (requires executable stack)");
+
return const0_rtx;
}
|
GitWeb
