|
yann@1393
|
1 |
diff -durN gcc-4.4.0.orig/gcc/c-common.c gcc-4.4.0/gcc/c-common.c
|
|
yann@1393
|
2 |
--- gcc-4.4.0.orig/gcc/c-common.c 2009-03-30 19:42:27.000000000 +0200
|
|
yann@1393
|
3 |
+++ gcc-4.4.0/gcc/c-common.c 2009-05-27 21:38:08.000000000 +0200
|
|
yann@1393
|
4 |
@@ -301,7 +301,7 @@
|
|
yann@1393
|
5 |
/* Warn about format/argument anomalies in calls to formatted I/O functions
|
|
yann@1393
|
6 |
(*printf, *scanf, strftime, strfmon, etc.). */
|
|
yann@1393
|
7 |
|
|
yann@1393
|
8 |
-int warn_format;
|
|
yann@1393
|
9 |
+int warn_format = 1;
|
|
yann@1393
|
10 |
|
|
yann@1393
|
11 |
/* Warn about using __null (as NULL in C++) as sentinel. For code compiled
|
|
yann@1393
|
12 |
with GCC this doesn't matter as __null is guaranteed to have the right
|
|
yann@1393
|
13 |
diff -durN gcc-4.4.0.orig/gcc/c.opt gcc-4.4.0/gcc/c.opt
|
|
yann@1393
|
14 |
--- gcc-4.4.0.orig/gcc/c.opt 2009-03-18 22:14:53.000000000 +0100
|
|
yann@1393
|
15 |
+++ gcc-4.4.0/gcc/c.opt 2009-05-27 21:38:08.000000000 +0200
|
|
yann@1393
|
16 |
@@ -236,7 +236,7 @@
|
|
yann@1393
|
17 |
Warn about format strings that contain NUL bytes
|
|
yann@1393
|
18 |
|
|
yann@1393
|
19 |
Wformat-security
|
|
yann@1393
|
20 |
-C ObjC C++ ObjC++ Var(warn_format_security) Warning
|
|
yann@1393
|
21 |
+C ObjC C++ ObjC++ Var(warn_format_security) Init(1) Warning
|
|
yann@1393
|
22 |
Warn about possible security problems with format functions
|
|
yann@1393
|
23 |
|
|
yann@1393
|
24 |
Wformat-y2k
|
|
yann@1393
|
25 |
diff -durN gcc-4.4.0.orig/gcc/doc/invoke.texi gcc-4.4.0/gcc/doc/invoke.texi
|
|
yann@1393
|
26 |
--- gcc-4.4.0.orig/gcc/doc/invoke.texi 2009-04-01 09:18:47.000000000 +0200
|
|
yann@1393
|
27 |
+++ gcc-4.4.0/gcc/doc/invoke.texi 2009-05-27 21:38:08.000000000 +0200
|
|
yann@1393
|
28 |
@@ -2867,6 +2867,9 @@
|
|
yann@1393
|
29 |
@option{-Wformat-nonliteral}, @option{-Wformat-security}, and
|
|
yann@1393
|
30 |
@option{-Wformat=2} are available, but are not included in @option{-Wall}.
|
|
yann@1393
|
31 |
|
|
yann@1393
|
32 |
+NOTE: In Gentoo, this option is enabled by default for C, C++, ObjC, ObjC++.
|
|
yann@1393
|
33 |
+To disable, use @option{-Wformat=0}.
|
|
yann@1393
|
34 |
+
|
|
yann@1393
|
35 |
@item -Wformat-y2k
|
|
yann@1393
|
36 |
@opindex Wformat-y2k
|
|
yann@1393
|
37 |
@opindex Wno-format-y2k
|
|
yann@1393
|
38 |
@@ -2920,6 +2923,11 @@
|
|
yann@1393
|
39 |
in future warnings may be added to @option{-Wformat-security} that are not
|
|
yann@1393
|
40 |
included in @option{-Wformat-nonliteral}.)
|
|
yann@1393
|
41 |
|
|
yann@1393
|
42 |
+NOTE: In Gentoo, this option is enabled by default for C, C++, ObjC, ObjC++.
|
|
yann@1393
|
43 |
+To disable, use @option{-Wno-format-security}, or disable all format warnings
|
|
yann@1393
|
44 |
+with @option{-Wformat=0}. To make format security warnings fatal, specify
|
|
yann@1393
|
45 |
+@option{-Werror=format-security}.
|
|
yann@1393
|
46 |
+
|
|
yann@1393
|
47 |
@item -Wformat=2
|
|
yann@1393
|
48 |
@opindex Wformat=2
|
|
yann@1393
|
49 |
@opindex Wno-format=2
|