150 lines
6.1 KiB
Diff
150 lines
6.1 KiB
Diff
gcc/
|
|
2008-07-02 Joseph Myers <joseph@codesourcery.com>
|
|
* c-incpath.c: Include toplev.h.
|
|
(merge_include_chains): Use warning instead of cpp_error for
|
|
system directory poisoning diagnostic.
|
|
* Makefile.in (c-incpath.o): Depend on toplev.h.
|
|
* gcc.c (LINK_COMMAND_SPEC): Pass
|
|
--error-poison-system-directories if
|
|
-Werror=poison-system-directories.
|
|
|
|
2007-06-13 Joseph Myers <joseph@codesourcery.com>
|
|
* common.opt (--Wno-poison-system-directories): New.
|
|
* doc/invoke.texi (-Wno-poison-system-directories): Document.
|
|
* c-incpath.c: Include flags.h.
|
|
(merge_include_chains): Check flag_poison_system_directories.
|
|
* gcc.c (LINK_COMMAND_SPEC): Pass --no-poison-system-directories
|
|
to linker if -Wno-poison-system-directories.
|
|
* Makefile.in (c-incpath.o): Depend on $(FLAGS_H).
|
|
|
|
2007-03-20 Daniel Jacobowitz <dan@codesourcery.com>
|
|
Joseph Myers <joseph@codesourcery.com>
|
|
* configure.ac (--enable-poison-system-directories): New option.
|
|
* configure, config.in: Regenerate.
|
|
* c-incpath.c (merge_include_chains): If
|
|
ENABLE_POISON_SYSTEM_DIRECTORIES defined, warn for use of
|
|
/usr/include, /usr/local/include or /usr/X11R6/include.
|
|
|
|
Index: gcc-4.5.0/gcc/common.opt
|
|
===================================================================
|
|
--- gcc-4.5.0.orig/gcc/common.opt 2010-03-17 20:01:09.000000000 -0700
|
|
+++ gcc-4.5.0/gcc/common.opt 2010-06-25 11:35:39.965383734 -0700
|
|
@@ -152,6 +152,10 @@
|
|
Common Var(warn_padded) Warning
|
|
Warn when padding is required to align structure members
|
|
|
|
+Wpoison-system-directories
|
|
+Common Var(flag_poison_system_directories) Init(1)
|
|
+Warn for -I and -L options using system directories if cross compiling
|
|
+
|
|
Wshadow
|
|
Common Var(warn_shadow) Warning
|
|
Warn when one local variable shadows another
|
|
Index: gcc-4.5.0/gcc/config.in
|
|
===================================================================
|
|
--- gcc-4.5.0.orig/gcc/config.in 2010-04-14 02:30:07.000000000 -0700
|
|
+++ gcc-4.5.0/gcc/config.in 2010-06-25 11:35:39.969383588 -0700
|
|
@@ -132,6 +132,12 @@
|
|
#endif
|
|
|
|
|
|
+/* Define to warn for use of native system header directories */
|
|
+#ifndef USED_FOR_TARGET
|
|
+#undef ENABLE_POISON_SYSTEM_DIRECTORIES
|
|
+#endif
|
|
+
|
|
+
|
|
/* Define if you want all operations on RTL (the basic data structure of the
|
|
optimizer and back end) to be checked for dynamic type safety at runtime.
|
|
This is quite expensive. */
|
|
Index: gcc-4.5.0/gcc/configure.ac
|
|
===================================================================
|
|
--- gcc-4.5.0.orig/gcc/configure.ac 2010-06-25 11:34:01.433382161 -0700
|
|
+++ gcc-4.5.0/gcc/configure.ac 2010-06-25 11:35:39.969383588 -0700
|
|
@@ -4276,6 +4276,16 @@
|
|
fi)
|
|
AC_SUBST(slibdir)
|
|
|
|
+AC_ARG_ENABLE([poison-system-directories],
|
|
+ AS_HELP_STRING([--enable-poison-system-directories],
|
|
+ [warn for use of native system header directories]),,
|
|
+ [enable_poison_system_directories=no])
|
|
+if test "x${enable_poison_system_directories}" = "xyes"; then
|
|
+ AC_DEFINE([ENABLE_POISON_SYSTEM_DIRECTORIES],
|
|
+ [1],
|
|
+ [Define to warn for use of native system header directories])
|
|
+fi
|
|
+
|
|
# Substitute configuration variables
|
|
AC_SUBST(subdirs)
|
|
AC_SUBST(srcdir)
|
|
Index: gcc-4.5.0/gcc/doc/invoke.texi
|
|
===================================================================
|
|
--- gcc-4.5.0.orig/gcc/doc/invoke.texi 2010-04-06 07:02:22.000000000 -0700
|
|
+++ gcc-4.5.0/gcc/doc/invoke.texi 2010-06-25 11:35:39.992666345 -0700
|
|
@@ -252,6 +252,7 @@
|
|
-Woverlength-strings -Wpacked -Wpacked-bitfield-compat -Wpadded @gol
|
|
-Wparentheses -Wpedantic-ms-format -Wno-pedantic-ms-format @gol
|
|
-Wpointer-arith -Wno-pointer-to-int-cast @gol
|
|
+-Wno-poison-system-directories @gol
|
|
-Wredundant-decls @gol
|
|
-Wreturn-type -Wsequence-point -Wshadow @gol
|
|
-Wsign-compare -Wsign-conversion -Wstack-protector @gol
|
|
@@ -3603,6 +3604,14 @@
|
|
option will @emph{not} warn about unknown pragmas in system
|
|
headers---for that, @option{-Wunknown-pragmas} must also be used.
|
|
|
|
+@item -Wno-poison-system-directories
|
|
+@opindex Wno-poison-system-directories
|
|
+Do not warn for @option{-I} or @option{-L} options using system
|
|
+directories such as @file{/usr/include} when cross compiling. This
|
|
+option is intended for use in chroot environments when such
|
|
+directories contain the correct headers and libraries for the target
|
|
+system rather than the host.
|
|
+
|
|
@item -Wfloat-equal
|
|
@opindex Wfloat-equal
|
|
@opindex Wno-float-equal
|
|
Index: gcc-4.5.0/gcc/gcc.c
|
|
===================================================================
|
|
--- gcc-4.5.0.orig/gcc/gcc.c 2010-02-11 04:23:08.000000000 -0800
|
|
+++ gcc-4.5.0/gcc/gcc.c 2010-06-25 11:35:40.009381858 -0700
|
|
@@ -792,6 +792,8 @@
|
|
%{flto} %{fwhopr} %l " LINK_PIE_SPEC \
|
|
"%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
|
|
%{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
|
|
+ %{Wno-poison-system-directories:--no-poison-system-directories}\
|
|
+ %{Werror=poison-system-directories:--error-poison-system-directories}\
|
|
%{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
|
|
%{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
|
|
%{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
|
|
Index: gcc-4.5.0/gcc/incpath.c
|
|
===================================================================
|
|
--- gcc-4.5.0.orig/gcc/incpath.c 2009-11-25 02:55:54.000000000 -0800
|
|
+++ gcc-4.5.0/gcc/incpath.c 2010-06-25 11:35:40.017209818 -0700
|
|
@@ -353,6 +353,24 @@
|
|
}
|
|
fprintf (stderr, _("End of search list.\n"));
|
|
}
|
|
+
|
|
+#ifdef ENABLE_POISON_SYSTEM_DIRECTORIES
|
|
+ if (flag_poison_system_directories)
|
|
+ {
|
|
+ struct cpp_dir *p;
|
|
+
|
|
+ for (p = heads[QUOTE]; p; p = p->next)
|
|
+ {
|
|
+ if ((!strncmp (p->name, "/usr/include", 12))
|
|
+ || (!strncmp (p->name, "/usr/local/include", 18))
|
|
+ || (!strncmp (p->name, "/usr/X11R6/include", 18)))
|
|
+ warning (OPT_Wpoison_system_directories,
|
|
+ "include location \"%s\" is unsafe for "
|
|
+ "cross-compilation",
|
|
+ p->name);
|
|
+ }
|
|
+ }
|
|
+#endif
|
|
}
|
|
|
|
/* Use given -I paths for #include "..." but not #include <...>, and
|