![Waldemar Brodkorb](/assets/img/avatar_default.png)
See: https://sourceware.org/pipermail/binutils/2022-February/119721.html i386-Allow-GOT32-relocations-against-ABS-symbols.patch is not required as it is in release. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
307 lines
10 KiB
Diff
307 lines
10 KiB
Diff
From 4d8705ddb55897e8a74b617ab95736d520d9e1ea Mon Sep 17 00:00:00 2001
|
|
From: Romain Naour <romain.naour@gmail.com>
|
|
Date: Fri, 25 Dec 2015 11:45:38 +0100
|
|
Subject: [PATCH] poison-system-directories
|
|
|
|
Patch adapted to binutils 2.23.2 and extended to use
|
|
BR_COMPILER_PARANOID_UNSAFE_PATH by Thomas Petazzoni.
|
|
|
|
[Romain: rebase on top of 2.33.1]
|
|
Signed-off-by: Romain Naour <romain.naour@gmail.com>
|
|
[Gustavo: adapt to binutils 2.25]
|
|
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
|
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
|
|
|
|
Upstream-Status: Inappropriate [distribution: codesourcery]
|
|
|
|
Patch originally created by Mark Hatle, forward-ported to
|
|
binutils 2.21 by Scott Garman.
|
|
|
|
purpose: warn for uses of system directories when cross linking
|
|
|
|
Code Merged from Sourcery G++ binutils 2.19 - 4.4-277
|
|
|
|
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.ac (--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.
|
|
|
|
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
|
|
Signed-off-by: Scott Garman <scott.a.garman@intel.com>
|
|
---
|
|
ld/config.in | 3 +++
|
|
ld/configure | 14 ++++++++++++++
|
|
ld/configure.ac | 10 ++++++++++
|
|
ld/ld.h | 8 ++++++++
|
|
ld/ld.texi | 12 ++++++++++++
|
|
ld/ldfile.c | 17 +++++++++++++++++
|
|
ld/ldlex.h | 2 ++
|
|
ld/ldmain.c | 2 ++
|
|
ld/lexsup.c | 21 +++++++++++++++++++++
|
|
9 files changed, 89 insertions(+)
|
|
|
|
diff --git a/ld/config.in b/ld/config.in
|
|
index 26d55a00d47..ffad464783c 100644
|
|
--- a/ld/config.in
|
|
+++ b/ld/config.in
|
|
@@ -43,6 +43,9 @@
|
|
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 c197aaef3cb..882263aa43f 100755
|
|
--- a/ld/configure
|
|
+++ b/ld/configure
|
|
@@ -829,6 +829,7 @@ with_lib_path
|
|
enable_targets
|
|
enable_64_bit_bfd
|
|
with_sysroot
|
|
+enable_poison_system_directories
|
|
enable_gold
|
|
enable_got
|
|
enable_compressed_debug_sections
|
|
@@ -1498,6 +1499,8 @@ 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)
|
|
@@ -15236,7 +15239,18 @@ else
|
|
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-got was given.
|
|
if test "${enable_got+set}" = set; then :
|
|
diff --git a/ld/configure.ac b/ld/configure.ac
|
|
index 8ea97c43cd4..0f246db67d8 100644
|
|
--- a/ld/configure.ac
|
|
+++ b/ld/configure.ac
|
|
@@ -106,6 +106,16 @@ AC_SUBST(use_sysroot)
|
|
AC_SUBST(TARGET_SYSTEM_ROOT)
|
|
AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
|
|
|
|
+AC_ARG_ENABLE([poison-system-directories],
|
|
+ AS_HELP_STRING([--enable-poison-system-directories],
|
|
+ [warn for use of native system library directories]),,
|
|
+ [enable_poison_system_directories=no])
|
|
+if test "x${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 35fafebfaed..74e66405de6 100644
|
|
--- a/ld/ld.h
|
|
+++ b/ld/ld.h
|
|
@@ -162,6 +162,14 @@ 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 dd8f571d4e4..3ab210b41b9 100644
|
|
--- a/ld/ld.texi
|
|
+++ b/ld/ld.texi
|
|
@@ -2863,6 +2863,18 @@ string identifying the original linked file does not change.
|
|
|
|
Passing @code{none} for @var{style} disables the setting from any
|
|
@code{--build-id} options earlier on the command line.
|
|
+
|
|
+@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 9d0af06f1f6..7cdd3b1c1b1 100644
|
|
--- a/ld/ldfile.c
|
|
+++ b/ld/ldfile.c
|
|
@@ -117,6 +117,23 @@ 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 9e8bf5fb835..2f0fadfe0a3 100644
|
|
--- a/ld/ldlex.h
|
|
+++ b/ld/ldlex.h
|
|
@@ -163,6 +163,8 @@ enum option_values
|
|
OPTION_CTF_VARIABLES,
|
|
OPTION_NO_CTF_VARIABLES,
|
|
OPTION_CTF_SHARE_TYPES,
|
|
+ OPTION_NO_POISON_SYSTEM_DIRECTORIES,
|
|
+ OPTION_ERROR_POISON_SYSTEM_DIRECTORIES,
|
|
};
|
|
|
|
/* The initial parser states. */
|
|
diff --git a/ld/ldmain.c b/ld/ldmain.c
|
|
index 42660eb9a3c..1aef9387f93 100644
|
|
--- a/ld/ldmain.c
|
|
+++ b/ld/ldmain.c
|
|
@@ -321,6 +321,8 @@ 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
|
|
diff --git a/ld/lexsup.c b/ld/lexsup.c
|
|
index 00274c500d0..4f23b3a2da2 100644
|
|
--- a/ld/lexsup.c
|
|
+++ b/ld/lexsup.c
|
|
@@ -595,6 +595,14 @@ 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)
|
|
@@ -607,6 +615,7 @@ parse_args (unsigned argc, char **argv)
|
|
int ingroup = 0;
|
|
char *default_dirlist = NULL;
|
|
char *shortopts;
|
|
+ char *BR_paranoid_env;
|
|
struct option *longopts;
|
|
struct option *really_longopts;
|
|
int last_optind;
|
|
@@ -1643,6 +1652,14 @@ parse_args (unsigned argc, char **argv)
|
|
}
|
|
break;
|
|
|
|
+ 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_PUSH_STATE:
|
|
input_flags.pushed = xmemdup (&input_flags,
|
|
sizeof (input_flags),
|
|
@@ -1788,6 +1805,10 @@ parse_args (unsigned argc, char **argv)
|
|
command_line.soname = NULL;
|
|
}
|
|
|
|
+ BR_paranoid_env = getenv("BR_COMPILER_PARANOID_UNSAFE_PATH");
|
|
+ if (BR_paranoid_env && strlen(BR_paranoid_env) > 0)
|
|
+ command_line.error_poison_system_directories = true;
|
|
+
|
|
while (ingroup)
|
|
{
|
|
einfo (_("%P: missing --end-group; added as last command line option\n"));
|
|
--
|
|
2.31.1
|
|
|