diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-4.8/0016-gcc-poison-system-directories.patch')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.8/0016-gcc-poison-system-directories.patch | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.8/0016-gcc-poison-system-directories.patch b/meta/recipes-devtools/gcc/gcc-4.8/0016-gcc-poison-system-directories.patch new file mode 100644 index 0000000000..1e2a9e1009 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.8/0016-gcc-poison-system-directories.patch @@ -0,0 +1,224 @@ +From 160397ef3c3331099af028f1b8d3e085b07d88ad Mon Sep 17 00:00:00 2001 +From: Khem Raj <raj.khem@gmail.com> +Date: Fri, 29 Mar 2013 08:59:00 +0400 +Subject: [PATCH 16/35] gcc: poison-system-directories + +Signed-off-by: Khem Raj <raj.khem@gmail.com> + +Upstream-Status: Inappropriate [distribution: codesourcery] +--- + gcc/Makefile.in | 2 +- + gcc/common.opt | 4 ++++ + gcc/config.in | 6 ++++++ + gcc/configure | 20 ++++++++++++++++++-- + gcc/configure.ac | 10 ++++++++++ + gcc/doc/invoke.texi | 9 +++++++++ + gcc/gcc.c | 2 ++ + gcc/incpath.c | 19 +++++++++++++++++++ + 8 files changed, 69 insertions(+), 3 deletions(-) + +diff --git a/gcc/Makefile.in b/gcc/Makefile.in +index 54ea04f..90a2bba 100644 +--- a/gcc/Makefile.in ++++ b/gcc/Makefile.in +@@ -2018,7 +2018,7 @@ attribs.o : attribs.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) \ + + incpath.o: incpath.c incpath.h $(CONFIG_H) $(SYSTEM_H) $(CPPLIB_H) \ + intl.h prefix.h coretypes.h $(TM_H) cppdefault.h $(TARGET_H) \ +- $(MACHMODE_H) ++ $(MACHMODE_H) $(FLAGS_H) toplev.h + + CFLAGS-prefix.o += -DPREFIX=\"$(prefix)\" -DBASEVER=$(BASEVER_s) + prefix.o: prefix.c $(CONFIG_H) $(SYSTEM_H) coretypes.h prefix.h \ +diff --git a/gcc/common.opt b/gcc/common.opt +index bdbd3b6..ab86b00 100644 +--- a/gcc/common.opt ++++ b/gcc/common.opt +@@ -595,6 +595,10 @@ Wpedantic + Common Var(pedantic) Warning + Issue warnings needed for strict compliance to the standard + ++Wpoison-system-directories ++Common Var(flag_poison_system_directories) Init(1) Warning ++Warn for -I and -L options using system directories if cross compiling ++ + Wshadow + Common Var(warn_shadow) Warning + Warn when one local variable shadows another +diff --git a/gcc/config.in b/gcc/config.in +index d80fb9f..0524af7 100644 +--- a/gcc/config.in ++++ b/gcc/config.in +@@ -138,6 +138,12 @@ + #endif + + ++/* Define to warn for use of native system header directories */ ++#ifndef USED_FOR_TARGET ++#undef ENABLE_POISON_SYSTEM_DIRECTORIES ++#endif ++ ++ + /* Define if you want all operations on RTL (the basic data structure of the + optimizer and back end) to be checked for dynamic type safety at runtime. + This is quite expensive. */ +diff --git a/gcc/configure b/gcc/configure +index 135bbf5..b65d21d 100755 +--- a/gcc/configure ++++ b/gcc/configure +@@ -917,6 +917,7 @@ with_gc + with_system_zlib + enable_maintainer_mode + enable_version_specific_runtime_libs ++enable_poison_system_directories + enable_plugin + enable_libquadmath_support + with_linker_hash_style +@@ -1630,6 +1631,8 @@ Optional Features: + --enable-version-specific-runtime-libs + specify that runtime libraries should be installed + in a compiler-specific directory ++ --enable-poison-system-directories ++ warn for use of native system header directories + --enable-plugin enable plugin support + --disable-libquadmath-support + disable libquadmath support for Fortran +@@ -17828,7 +17831,7 @@ else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +-#line 17831 "configure" ++#line 17834 "configure" + #include "confdefs.h" + + #if HAVE_DLFCN_H +@@ -17934,7 +17937,7 @@ else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +-#line 17937 "configure" ++#line 17940 "configure" + #include "confdefs.h" + + #if HAVE_DLFCN_H +@@ -27103,6 +27106,19 @@ if test "${enable_version_specific_runtime_libs+set}" = set; then : + fi + + ++# Check whether --enable-poison-system-directories was given. ++if test "${enable_poison_system_directories+set}" = set; then : ++ enableval=$enable_poison_system_directories; ++else ++ enable_poison_system_directories=no ++fi ++ ++if test "x${enable_poison_system_directories}" = "xyes"; then ++ ++$as_echo "#define ENABLE_POISON_SYSTEM_DIRECTORIES 1" >>confdefs.h ++ ++fi ++ + # Substitute configuration variables + + +diff --git a/gcc/configure.ac b/gcc/configure.ac +index 6363a21..e226b85 100644 +--- a/gcc/configure.ac ++++ b/gcc/configure.ac +@@ -5063,6 +5063,16 @@ AC_ARG_ENABLE(version-specific-runtime-libs, + [specify that runtime libraries should be + installed in a compiler-specific directory])]) + ++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) +diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi +index 9273d7d..a022622 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -258,6 +258,7 @@ Objective-C and Objective-C++ Dialects}. + -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 -Wno-return-local-addr @gol + -Wreturn-type -Wsequence-point -Wshadow @gol + -Wsign-compare -Wsign-conversion -Wsizeof-pointer-memaccess @gol +@@ -4007,6 +4008,14 @@ headers---for that, @option{-Wunknown-pragmas} must also be used. + for most targets, it is made up of code and thus requires the stack + to be made executable in order for the program to work properly. + ++@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 +diff --git a/gcc/gcc.c b/gcc/gcc.c +index 86077f8..efdb625 100644 +--- a/gcc/gcc.c ++++ b/gcc/gcc.c +@@ -740,6 +740,8 @@ proper position among the other output files. */ + "%{fuse-ld=*:-fuse-ld=%*}\ + %X %{o*} %{e*} %{N} %{n} %{r}\ + %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\ ++ %{Wno-poison-system-directories:--no-poison-system-directories}\ ++ %{Werror=poison-system-directories:--error-poison-system-directories}\ + %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\ + %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\ + %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\ +diff --git a/gcc/incpath.c b/gcc/incpath.c +index 018da98..cd41c78 100644 +--- a/gcc/incpath.c ++++ b/gcc/incpath.c +@@ -28,6 +28,7 @@ + #include "intl.h" + #include "incpath.h" + #include "cppdefault.h" ++#include "diagnostic-core.h" + + /* Microsoft Windows does not natively support inodes. + VMS has non-numeric inodes. */ +@@ -382,6 +383,24 @@ merge_include_chains (const char *sysroot, cpp_reader *pfile, int verbose) + } + 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 +-- +1.7.10.4 + |