1 files changed, 287 insertions, 0 deletions

diff --git a/meta/recipes-devtools/binutils/binutils/0006-warn-for-uses-of-system-directories-when-cross-linki.patch b/meta/recipes-devtools/binutils/binutils/0006-warn-for-uses-of-system-directories-when-cross-linki.patch
new file mode 100644
index 0000000000..bf6a1a3961
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/0006-warn-for-uses-of-system-directories-when-cross-linki.patch
@@ -0,0 +1,287 @@
+From a92c46e3703d038d7d810bdc91e8540ad9d9150a Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 15 Jan 2016 06:31:09 +0000
+Subject: [PATCH] warn for uses of system directories when cross linking
+
+2008-07-02  Joseph Myers  <joseph@codesourcery.com>
+
+    ld/
+    * ld.h (args_type): Add error_poison_system_directories.
+    * ld.texinfo (--error-poison-system-directories): Document.
+    * ldfile.c (ldfile_add_library_path): Check
+    command_line.error_poison_system_directories.
+    * ldmain.c (main): Initialize
+    command_line.error_poison_system_directories.
+    * lexsup.c (enum option_values): Add
+    OPTION_ERROR_POISON_SYSTEM_DIRECTORIES.
+    (ld_options): Add --error-poison-system-directories.
+    (parse_args): Handle new option.
+
+2007-06-13  Joseph Myers  <joseph@codesourcery.com>
+
+    ld/
+    * config.in: Regenerate.
+    * ld.h (args_type): Add poison_system_directories.
+    * ld.texinfo (--no-poison-system-directories): Document.
+    * ldfile.c (ldfile_add_library_path): Check
+    command_line.poison_system_directories.
+    * ldmain.c (main): Initialize
+    command_line.poison_system_directories.
+    * lexsup.c (enum option_values): Add
+    OPTION_NO_POISON_SYSTEM_DIRECTORIES.
+    (ld_options): Add --no-poison-system-directories.
+    (parse_args): Handle new option.
+
+2007-04-20  Joseph Myers  <joseph@codesourcery.com>
+
+    Merge from Sourcery G++ binutils 2.17:
+
+    2007-03-20  Joseph Myers  <joseph@codesourcery.com>
+    Based on patch by Mark Hatle <mark.hatle@windriver.com>.
+    ld/
+    * configure.in (--enable-poison-system-directories): New option.
+    * configure, config.in: Regenerate.
+    * ldfile.c (ldfile_add_library_path): If
+    ENABLE_POISON_SYSTEM_DIRECTORIES defined, warn for use of /lib,
+    /usr/lib, /usr/local/lib or /usr/X11R6/lib.
+
+Upstream-Status: Pending
+
+Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
+Signed-off-by: Scott Garman <scott.a.garman@intel.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ ld/config.in    |  3 +++
+ ld/configure    | 16 ++++++++++++++++
+ ld/configure.ac | 10 ++++++++++
+ ld/ld.h         |  8 ++++++++
+ ld/ld.texi      | 12 ++++++++++++
+ ld/ldfile.c     | 17 +++++++++++++++++
+ ld/ldlex.h      |  2 ++
+ ld/ldmain.c     |  6 ++++--
+ ld/lexsup.c     | 15 +++++++++++++++
+ 9 files changed, 87 insertions(+), 2 deletions(-)
+
+diff --git a/ld/config.in b/ld/config.in
+index 52d62f06ff0..b5944e7ba55 100644
+--- a/ld/config.in
++++ b/ld/config.in
+@@ -70,6 +70,9 @@
+    language is requested. */
+ #undef ENABLE_NLS
+ 
++/* Define to warn for use of native system library directories */
++#undef ENABLE_POISON_SYSTEM_DIRECTORIES
++
+ /* Additional extension a shared object might have. */
+ #undef EXTRA_SHLIB_EXTENSION
+ 
+diff --git a/ld/configure b/ld/configure
+index 6f8a05c3b6c..98a76d6da7f 100755
+--- a/ld/configure
++++ b/ld/configure
+@@ -844,6 +844,7 @@ with_lib_path
+ enable_targets
+ enable_64_bit_bfd
+ with_sysroot
++enable_poison_system_directories
+ enable_gold
+ enable_got
+ enable_compressed_debug_sections
+@@ -1534,6 +1535,8 @@ Optional Features:
+   --enable-checking       enable run-time checks
+   --enable-targets        alternative target configurations
+   --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)
++  --enable-poison-system-directories
++                          warn for use of native system library directories
+   --enable-gold[=ARG]     build gold [ARG={default,yes,no}]
+   --enable-got=<type>     GOT handling scheme (target, single, negative,
+                           multigot)
+@@ -15566,6 +15569,19 @@ 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
++
+ # Check whether --enable-gold was given.
+ if test "${enable_gold+set}" = set; then :
+   enableval=$enable_gold; case "${enableval}" in
+diff --git a/ld/configure.ac b/ld/configure.ac
+index 4a11787ae71..104a531fb0f 100644
+--- a/ld/configure.ac
++++ b/ld/configure.ac
+@@ -103,6 +103,16 @@ AC_SUBST(use_sysroot)
+ AC_SUBST(TARGET_SYSTEM_ROOT)
+ AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
+ 
++AC_ARG_ENABLE([poison-system-directories],
++         AS_HELP_STRING([--enable-poison-system-directories],
++                [warn for use of native system library directories]),,
++         [enable_poison_system_directories=no])
++if test "x${enable_poison_system_directories}" = "xyes"; then
++  AC_DEFINE([ENABLE_POISON_SYSTEM_DIRECTORIES],
++       [1],
++       [Define to warn for use of native system library directories])
++fi
++
+ dnl Use --enable-gold to decide if this linker should be the default.
+ dnl "install_as_default" is set to false if gold is the default linker.
+ dnl "installed_linker" is the installed BFD linker name.
+diff --git a/ld/ld.h b/ld/ld.h
+index 54d9079678c..9f0163b2911 100644
+--- a/ld/ld.h
++++ b/ld/ld.h
+@@ -166,6 +166,14 @@ typedef struct
+      in the linker script.  */
+   bool force_group_allocation;
+ 
++  /* If TRUE (the default) warn for uses of system directories when
++     cross linking.  */
++  bool poison_system_directories;
++
++  /* If TRUE (default FALSE) give an error for uses of system
++     directories when cross linking instead of a warning.  */
++  bool error_poison_system_directories;
++
+   /* Big or little endian as set on command line.  */
+   enum endian_enum endian;
+ 
+diff --git a/ld/ld.texi b/ld/ld.texi
+index 4fda259a552..22685f5f1dd 100644
+--- a/ld/ld.texi
++++ b/ld/ld.texi
+@@ -3119,6 +3119,18 @@ creation of the metadata note, if one had been enabled by an earlier
+ occurrence of the --package-metadata option.
+ If the linker has been built with libjansson, then the JSON string
+ will be validated.
++
++@kindex --no-poison-system-directories
++@item --no-poison-system-directories
++Do not warn for @option{-L} options using system directories such as
++@file{/usr/lib} when cross linking.  This option is intended for use
++in chroot environments when such directories contain the correct
++libraries for the target system rather than the host.
++
++@kindex --error-poison-system-directories
++@item --error-poison-system-directories
++Give an error instead of a warning for @option{-L} options using
++system directories when cross linking.
+ @end table
+ 
+ @c man end
+diff --git a/ld/ldfile.c b/ld/ldfile.c
+index dc9875d8813..49d899ee49d 100644
+--- a/ld/ldfile.c
++++ b/ld/ldfile.c
+@@ -327,6 +327,23 @@ ldfile_add_library_path (const char *name, bool cmdline)
+     new_dirs->name = concat (ld_sysroot, name + strlen ("$SYSROOT"), (const char *) NULL);
+   else
+     new_dirs->name = xstrdup (name);
++
++#ifdef ENABLE_POISON_SYSTEM_DIRECTORIES
++  if (command_line.poison_system_directories
++  && ((!strncmp (name, "/lib", 4))
++      || (!strncmp (name, "/usr/lib", 8))
++      || (!strncmp (name, "/usr/local/lib", 14))
++      || (!strncmp (name, "/usr/X11R6/lib", 14))))
++   {
++     if (command_line.error_poison_system_directories)
++       einfo (_("%X%P: error: library search path \"%s\" is unsafe for "
++            "cross-compilation\n"), name);
++     else
++       einfo (_("%P: warning: library search path \"%s\" is unsafe for "
++            "cross-compilation\n"), name);
++   }
++#endif
++
+ }
+ 
+ /* Try to open a BFD for a lang_input_statement.  */
+diff --git a/ld/ldlex.h b/ld/ldlex.h
+index 161a9d4d8dc..757fe2f7650 100644
+--- a/ld/ldlex.h
++++ b/ld/ldlex.h
+@@ -147,6 +147,8 @@ enum option_values
+   OPTION_PLUGIN,
+   OPTION_PLUGIN_OPT,
+ #endif /* BFD_SUPPORTS_PLUGINS */
++  OPTION_NO_POISON_SYSTEM_DIRECTORIES,
++  OPTION_ERROR_POISON_SYSTEM_DIRECTORIES,
+   OPTION_DEFAULT_SCRIPT,
+   OPTION_PRINT_OUTPUT_FORMAT,
+   OPTION_PRINT_SYSROOT,
+diff --git a/ld/ldmain.c b/ld/ldmain.c
+index 01b306e58a1..eddefc24332 100644
+--- a/ld/ldmain.c
++++ b/ld/ldmain.c
+@@ -326,6 +326,8 @@ main (int argc, char **argv)
+   command_line.warn_mismatch = true;
+   command_line.warn_search_mismatch = true;
+   command_line.check_section_addresses = -1;
++  command_line.poison_system_directories = true;
++  command_line.error_poison_system_directories = false;
+ 
+   /* We initialize DEMANGLING based on the environment variable
+      COLLECT_NO_DEMANGLE.  The gcc collect2 program will demangle the
+@@ -1458,7 +1460,7 @@ undefined_symbol (struct bfd_link_info *info,
+       argv[1] = "undefined-symbol";
+       argv[2] = (char *) name;
+       argv[3] = NULL;
+-      
++
+       if (verbose)
+        einfo (_("%P: About to run error handling script '%s' with arguments: '%s' '%s'\n"),
+               argv[0], argv[1], argv[2]);
+@@ -1479,7 +1481,7 @@ undefined_symbol (struct bfd_link_info *info,
+         carry on to issue the normal error message.  */
+     }
+ #endif /* SUPPORT_ERROR_HANDLING_SCRIPT */
+-  
++
+   if (section != NULL)
+     {
+       if (error_count < MAX_ERRORS_IN_A_ROW)
+diff --git a/ld/lexsup.c b/ld/lexsup.c
+index 099dff8ecde..e9939000b2e 100644
+--- a/ld/lexsup.c
++++ b/ld/lexsup.c
+@@ -642,6 +642,14 @@ static const struct ld_option ld_options[] =
+                   "                                <method> is: share-unconflicted (default),\n"
+                   "                                             share-duplicated"),
+     TWO_DASHES },
++  { {"no-poison-system-directories", no_argument, NULL,
++     OPTION_NO_POISON_SYSTEM_DIRECTORIES},
++    '\0', NULL, N_("Do not warn for -L options using system directories"),
++    TWO_DASHES },
++  { {"error-poison-system-directories", no_argument, NULL,
++    +     OPTION_ERROR_POISON_SYSTEM_DIRECTORIES},
++    '\0', NULL, N_("Give an error for -L options using system directories"),
++    TWO_DASHES },
+ };
+ 
+ #define OPTION_COUNT ARRAY_SIZE (ld_options)
+@@ -1818,6 +1826,13 @@ parse_args (unsigned argc, char **argv)
+ 
+        case OPTION_PRINT_MAP_LOCALS:
+          config.print_map_locals = true;
++
++       case OPTION_NO_POISON_SYSTEM_DIRECTORIES:
++         command_line.poison_system_directories = false;
++         break;
++
++       case OPTION_ERROR_POISON_SYSTEM_DIRECTORIES:
++         command_line.error_poison_system_directories = true;
+          break;
+ 
+        case OPTION_DEPENDENCY_FILE: