libsanitizer: Fix linkage errors for cross toolchains
Commit Message
When we use cross toolchains, in which the GCC libraries are not installed within a designated system root, the shared sanitizer libraries link against libstdc++.so* within the same libraries. This directory, however, is not in RPATH, so attempting to build a dynamically linked application with -fsanitize=... gives a linkage error.
More information can be found here: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69839.
gcc/ChangeLog:
* gcc.c (LIBSAN_RPATH): New macro.
(LIBASAN_SPEC): Add LIBSAN_RPATH.
(LIBUBSAN_SPEC): Likewise.
(LIBTSAN_SPEC): Likewise.
(LIBLSAN_SPEC): Likewise.
libsanitizer/ChangeLog:
* configure.ac (link_libsan_rpath): New config variable.
* libsanitizer.spec.in (link_libsan_rpath): New spec.
* configure (link_libsan_rpath): New config variable.
* Makefile.in (link_libsan_rpath): Define new Makefile variable.
* asan/Makefile.in: Likewise.
* interception/Makefile.in: Likewise.
* libbacktrace/Makefile.in: Likewise.
* lsan/Makefile.in: Likewise.
* sanitizer_common/Makefile.in: Likewise.
* tsan/Makefile.in: Likewise.
* ubsan/Makefile.in: Likewise.
* hwasan/Makefile.in: Likewise.
---
gcc/gcc.cc | 20 ++++++++++++--------
libsanitizer/Makefile.in | 1 +
libsanitizer/asan/Makefile.in | 1 +
libsanitizer/configure | 10 ++++++++--
libsanitizer/configure.ac | 7 +++++++
libsanitizer/hwasan/Makefile.in | 1 +
libsanitizer/interception/Makefile.in | 1 +
libsanitizer/libbacktrace/Makefile.in | 1 +
libsanitizer/libsanitizer.spec.in | 2 ++
libsanitizer/lsan/Makefile.in | 1 +
libsanitizer/sanitizer_common/Makefile.in | 1 +
libsanitizer/tsan/Makefile.in | 1 +
libsanitizer/ubsan/Makefile.in | 1 +
13 files changed, 38 insertions(+), 10 deletions(-)
---
Comments
Again, please send patch as plain text.
On Fri, 2022-07-01 at 08:18 +0000, Dimitrije Milosevic wrote:
> When we use cross toolchains, in which the GCC libraries are not
> installed within a designated system root, the shared sanitizer
> libraries link against libstdc++.so* within the same libraries.
> This directory, however, is not in RPATH, so attempting to build a
> dynamically linked application with -fsanitize=... gives a linkage
> error.
> More information can be found here:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69839.
Hmm... Is anyone really using a cross compiler without a sysroot? PR
69839 is already closed as INVALID. If you don't want to install GCC
runtime libraries into the sysroot (for example, for multiple GCC builds
using a shared sysroot), we have --enable-version-specific-runtime-libs
but unfortunately it's broken (PR 32415).
Please explain the actual use case and let us elaborate to see if there
is a better solution.
> gcc/ChangeLog:
> * gcc.c (LIBSAN_RPATH): New macro.
> (LIBASAN_SPEC): Add LIBSAN_RPATH.
> (LIBUBSAN_SPEC): Likewise.
> (LIBTSAN_SPEC): Likewise.
> (LIBLSAN_SPEC): Likewise.
>
> libsanitizer/ChangeLog:
> * configure.ac (link_libsan_rpath): New config variable.
> * libsanitizer.spec.in (link_libsan_rpath): New spec.
> * configure (link_libsan_rpath): New config variable.
> * Makefile.in (link_libsan_rpath): Define new Makefile
> variable.
> * asan/Makefile.in: Likewise.
> * interception/Makefile.in: Likewise.
> * libbacktrace/Makefile.in: Likewise.
> * lsan/Makefile.in: Likewise.
> * sanitizer_common/Makefile.in: Likewise.
> * tsan/Makefile.in: Likewise.
> * ubsan/Makefile.in: Likewise.
> * hwasan/Makefile.in: Likewise.
>
> ---
>
> gcc/gcc.cc | 20 ++++++++++++--------
> libsanitizer/Makefile.in | 1 +
> libsanitizer/asan/Makefile.in | 1 +
> libsanitizer/configure | 10 ++++++++--
> libsanitizer/configure.ac | 7 +++++++
> libsanitizer/hwasan/Makefile.in | 1 +
> libsanitizer/interception/Makefile.in | 1 +
> libsanitizer/libbacktrace/Makefile.in | 1 +
> libsanitizer/libsanitizer.spec.in | 2 ++
> libsanitizer/lsan/Makefile.in | 1 +
> libsanitizer/sanitizer_common/Makefile.in | 1 +
> libsanitizer/tsan/Makefile.in | 1 +
> libsanitizer/ubsan/Makefile.in | 1 +
> 13 files changed, 38 insertions(+), 10 deletions(-)
>
>
> diff --git a/gcc/gcc.cc b/gcc/gcc.ccindex 299e09c4f54..37ff75f1ad5
> 100644
> --- a/gcc/gcc.cc
> +++ b/gcc/gcc.cc
> @@ -738,17 +738,21 @@ proper position among the other output files.
> */
> #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
> #endif
>
> +#ifndef LIBSAN_RPATH
> +#define LIBSAN_RPATH "
> %:include(libsanitizer.spec)%(link_libsan_rpath)"
> +#endif
> +
> #ifndef LIBASAN_SPEC
> #define STATIC_LIBASAN_LIBS \
> " %{static-
> libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
> #ifdef LIBASAN_EARLY_SPEC
> -#define LIBASAN_SPEC STATIC_LIBASAN_LIBS
> +#define LIBASAN_SPEC STATIC_LIBASAN_LIBS LIBSAN_RPATH
> #elif defined(HAVE_LD_STATIC_DYNAMIC)
> #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
> "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION
> "}" \
> STATIC_LIBASAN_LIBS
> #else
> -#define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
> +#define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS LIBSAN_RPATH
> #endif
> #endif
>
> @@ -778,13 +782,13 @@ proper position among the other output files.
> */
> #define STATIC_LIBTSAN_LIBS \
> " %{static-
> libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
> #ifdef LIBTSAN_EARLY_SPEC
> -#define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
> +#define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS LIBSAN_RPATH
> #elif defined(HAVE_LD_STATIC_DYNAMIC)
> #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
> "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION
> "}" \
> STATIC_LIBTSAN_LIBS
> #else
> -#define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
> +#define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS LIBSAN_RPATH
> #endif
> #endif
>
> @@ -793,7 +797,7 @@ proper position among the other output files. */
> #endif
>
> #ifndef LIBLSAN_SPEC
> -#define STATIC_LIBLSAN_LIBS \
> +#define STATIC_LIBLSAN_LIBS LIBSAN_RPATH \
> " %{static-
> liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
> #ifdef LIBLSAN_EARLY_SPEC
> #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
> @@ -802,7 +806,7 @@ proper position among the other output files. */
> "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION
> "}" \
> STATIC_LIBLSAN_LIBS
> #else
> -#define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
> +#define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS LIBSAN_RPATH
> #endif
> #endif
>
> @@ -816,9 +820,9 @@ proper position among the other output files. */
> #ifdef HAVE_LD_STATIC_DYNAMIC
> #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
> "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION
> "}" \
> - STATIC_LIBUBSAN_LIBS
> + STATIC_LIBUBSAN_LIBS LIBSAN_RPATH
> #else
> -#define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
> +#define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS LIBSAN_RPATH
> #endif
> #endif
>
> diff --git a/libsanitizer/Makefile.in b/libsanitizer/Makefile.in
> index 65e7f2e9553..ef71407a512 100644
> --- a/libsanitizer/Makefile.in
> +++ b/libsanitizer/Makefile.in
> @@ -333,6 +333,7 @@ libexecdir = @libexecdir@
> link_libasan = @link_libasan@
> link_libhwasan = @link_libhwasan@
> link_liblsan = @link_liblsan@
> +link_libsan_rpath = @link_libsan_rpath@
> link_libtsan = @link_libtsan@
> link_libubsan = @link_libubsan@
> localedir = @localedir@
> diff --git a/libsanitizer/asan/Makefile.in
> b/libsanitizer/asan/Makefile.in
> index 7833a9a4c3f..143dafa450d 100644
> --- a/libsanitizer/asan/Makefile.in
> +++ b/libsanitizer/asan/Makefile.in
> @@ -387,6 +387,7 @@ libexecdir = @libexecdir@
> link_libasan = @link_libasan@
> link_libhwasan = @link_libhwasan@
> link_liblsan = @link_liblsan@
> +link_libsan_rpath = @link_libsan_rpath@
> link_libtsan = @link_libtsan@
> link_libubsan = @link_libubsan@
> localedir = @localedir@
> diff --git a/libsanitizer/configure b/libsanitizer/configure
> index 771b135573a..4408167929f 100755
> --- a/libsanitizer/configure
> +++ b/libsanitizer/configure
> @@ -660,6 +660,7 @@ link_libubsan
> link_libtsan
> link_libhwasan
> link_libasan
> +link_libsan_rpath
> HWASAN_SUPPORTED_FALSE
> HWASAN_SUPPORTED_TRUE
> LSAN_SUPPORTED_FALSE
> @@ -12359,7 +12360,7 @@ else
> lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
> lt_status=$lt_dlunknown
> cat > conftest.$ac_ext <<_LT_EOF
> -#line 12362 "configure"
> +#line 12363 "configure"
> #include "confdefs.h"
>
> #if HAVE_DLFCN_H
> @@ -12465,7 +12466,7 @@ else
> lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
> lt_status=$lt_dlunknown
> cat > conftest.$ac_ext <<_LT_EOF
> -#line 12468 "configure"
> +#line 12469 "configure"
> #include "confdefs.h"
>
> #if HAVE_DLFCN_H
> @@ -15935,6 +15936,11 @@ if test "x$ac_cv_lib_dl_dlsym" = xyes; then :
> link_sanitizer_common="-ldl $link_sanitizer_common"
> fi
>
> +lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-
> directory 2>/dev/null`
> +if test -n "$with_cross_host" &&
> + test x"$with_cross_host" != x"no"; then
> + link_libsan_rpath="-rpath-
> link=%R/../${target_alias}/lib/$lt_multi_os_dir"
> +fi
>
> # Set up the set of additional libraries that we need to link against
> for libasan.
> link_libasan=$link_sanitizer_common
> diff --git a/libsanitizer/configure.ac b/libsanitizer/configure.ac
> index 7f1ef3979c4..4c7c3814cf1 100644
> --- a/libsanitizer/configure.ac
> +++ b/libsanitizer/configure.ac
> @@ -118,6 +118,13 @@ AC_CHECK_LIB(rt, shm_open,
> AC_CHECK_LIB(dl, dlsym,
> [link_sanitizer_common="-ldl $link_sanitizer_common"])
>
> +lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-
> directory 2>/dev/null`
> +if test -n "$with_cross_host" &&
> + test x"$with_cross_host" != x"no"; then
> + link_libsan_rpath="-rpath-
> link=%R/../../${target_alias}/lib/$lt_multi_os_dir"
> +fi
> +AC_SUBST(link_libsan_rpath)
> +
> # Set up the set of additional libraries that we need to link against
> for libasan.
> link_libasan=$link_sanitizer_common
> AC_SUBST(link_libasan)
> diff --git a/libsanitizer/hwasan/Makefile.in
> b/libsanitizer/hwasan/Makefile.in
> index b9b942003a3..cda1c944542 100644
> --- a/libsanitizer/hwasan/Makefile.in
> +++ b/libsanitizer/hwasan/Makefile.in
> @@ -376,6 +376,7 @@ libexecdir = @libexecdir@
> link_libasan = @link_libasan@
> link_libhwasan = @link_libhwasan@
> link_liblsan = @link_liblsan@
> +link_libsan_rpath = @link_libsan_rpath@
> link_libtsan = @link_libtsan@
> link_libubsan = @link_libubsan@
> localedir = @localedir@
> diff --git a/libsanitizer/interception/Makefile.in
> b/libsanitizer/interception/Makefile.in
> index 85dd386de47..a10851cd157 100644
> --- a/libsanitizer/interception/Makefile.in
> +++ b/libsanitizer/interception/Makefile.in
> @@ -305,6 +305,7 @@ libexecdir = @libexecdir@
> link_libasan = @link_libasan@
> link_libhwasan = @link_libhwasan@
> link_liblsan = @link_liblsan@
> +link_libsan_rpath = @link_libsan_rpath@
> link_libtsan = @link_libtsan@
> link_libubsan = @link_libubsan@
> localedir = @localedir@
> diff --git a/libsanitizer/libbacktrace/Makefile.in
> b/libsanitizer/libbacktrace/Makefile.in
> index c0243fa4aab..4c75070a6e3 100644
> --- a/libsanitizer/libbacktrace/Makefile.in
> +++ b/libsanitizer/libbacktrace/Makefile.in
> @@ -355,6 +355,7 @@ libexecdir = @libexecdir@
> link_libasan = @link_libasan@
> link_libhwasan = @link_libhwasan@
> link_liblsan = @link_liblsan@
> +link_libsan_rpath = @link_libsan_rpath@
> link_libtsan = @link_libtsan@
> link_libubsan = @link_libubsan@
> localedir = @localedir@
> diff --git a/libsanitizer/libsanitizer.spec.in
> b/libsanitizer/libsanitizer.spec.in
> index 70a33574d7b..1df604335d5 100644
> --- a/libsanitizer/libsanitizer.spec.in
> +++ b/libsanitizer/libsanitizer.spec.in
> @@ -11,3 +11,5 @@
>
> *link_liblsan: @link_liblsan@
>
> +*link_libsan_rpath: @link_libsan_rpath@
> +
> diff --git a/libsanitizer/lsan/Makefile.in
> b/libsanitizer/lsan/Makefile.in
> index d8fd4ee9557..8f459b255d7 100644
> --- a/libsanitizer/lsan/Makefile.in
> +++ b/libsanitizer/lsan/Makefile.in
> @@ -350,6 +350,7 @@ libexecdir = @libexecdir@
> link_libasan = @link_libasan@
> link_libhwasan = @link_libhwasan@
> link_liblsan = @link_liblsan@
> +link_libsan_rpath = @link_libsan_rpath@
> link_libtsan = @link_libtsan@
> link_libubsan = @link_libubsan@
> localedir = @localedir@
> diff --git a/libsanitizer/sanitizer_common/Makefile.in
> b/libsanitizer/sanitizer_common/Makefile.in
> index 07047bd4b17..e916a803786 100644
> --- a/libsanitizer/sanitizer_common/Makefile.in
> +++ b/libsanitizer/sanitizer_common/Makefile.in
> @@ -342,6 +342,7 @@ libexecdir = @libexecdir@
> link_libasan = @link_libasan@
> link_libhwasan = @link_libhwasan@
> link_liblsan = @link_liblsan@
> +link_libsan_rpath = @link_libsan_rpath@
> link_libtsan = @link_libtsan@
> link_libubsan = @link_libubsan@
> localedir = @localedir@
> diff --git a/libsanitizer/tsan/Makefile.in
> b/libsanitizer/tsan/Makefile.in
> index 36498832bb8..ab8db13a268 100644
> --- a/libsanitizer/tsan/Makefile.in
> +++ b/libsanitizer/tsan/Makefile.in
> @@ -379,6 +379,7 @@ libexecdir = @libexecdir@
> link_libasan = @link_libasan@
> link_libhwasan = @link_libhwasan@
> link_liblsan = @link_liblsan@
> +link_libsan_rpath = @link_libsan_rpath@
> link_libtsan = @link_libtsan@
> link_libubsan = @link_libubsan@
> localedir = @localedir@
> diff --git a/libsanitizer/ubsan/Makefile.in
> b/libsanitizer/ubsan/Makefile.in
> index 92a8e387fd7..5fc063fe9ee 100644
> --- a/libsanitizer/ubsan/Makefile.in
> +++ b/libsanitizer/ubsan/Makefile.in
> @@ -344,6 +344,7 @@ libexecdir = @libexecdir@
> link_libasan = @link_libasan@
> link_libhwasan = @link_libhwasan@
> link_liblsan = @link_liblsan@
> +link_libsan_rpath = @link_libsan_rpath@
> link_libtsan = @link_libtsan@
> link_libubsan = @link_libubsan@
> localedir = @localedir@
>
> ---
>
@@ -738,17 +738,21 @@ proper position among the other output files. */
#define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
#endif
+#ifndef LIBSAN_RPATH
+#define LIBSAN_RPATH " %:include(libsanitizer.spec)%(link_libsan_rpath)"
+#endif
+
#ifndef LIBASAN_SPEC
#define STATIC_LIBASAN_LIBS \
" %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
#ifdef LIBASAN_EARLY_SPEC
-#define LIBASAN_SPEC STATIC_LIBASAN_LIBS
+#define LIBASAN_SPEC STATIC_LIBASAN_LIBS LIBSAN_RPATH
#elif defined(HAVE_LD_STATIC_DYNAMIC)
#define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
"} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
STATIC_LIBASAN_LIBS
#else
-#define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
+#define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS LIBSAN_RPATH
#endif
#endif
@@ -778,13 +782,13 @@ proper position among the other output files. */
#define STATIC_LIBTSAN_LIBS \
" %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
#ifdef LIBTSAN_EARLY_SPEC
-#define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
+#define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS LIBSAN_RPATH
#elif defined(HAVE_LD_STATIC_DYNAMIC)
#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
"} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
STATIC_LIBTSAN_LIBS
#else
-#define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
+#define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS LIBSAN_RPATH
#endif
#endif
@@ -793,7 +797,7 @@ proper position among the other output files. */
#endif
#ifndef LIBLSAN_SPEC
-#define STATIC_LIBLSAN_LIBS \
+#define STATIC_LIBLSAN_LIBS LIBSAN_RPATH \
" %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
#ifdef LIBLSAN_EARLY_SPEC
#define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
@@ -802,7 +806,7 @@ proper position among the other output files. */
"} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
STATIC_LIBLSAN_LIBS
#else
-#define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
+#define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS LIBSAN_RPATH
#endif
#endif
@@ -816,9 +820,9 @@ proper position among the other output files. */
#ifdef HAVE_LD_STATIC_DYNAMIC
#define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
"} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
- STATIC_LIBUBSAN_LIBS
+ STATIC_LIBUBSAN_LIBS LIBSAN_RPATH
#else
-#define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
+#define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS LIBSAN_RPATH
#endif
#endif
@@ -333,6 +333,7 @@ libexecdir = @libexecdir@
link_libasan = @link_libasan@
link_libhwasan = @link_libhwasan@
link_liblsan = @link_liblsan@
+link_libsan_rpath = @link_libsan_rpath@
link_libtsan = @link_libtsan@
link_libubsan = @link_libubsan@
localedir = @localedir@
@@ -387,6 +387,7 @@ libexecdir = @libexecdir@
link_libasan = @link_libasan@
link_libhwasan = @link_libhwasan@
link_liblsan = @link_liblsan@
+link_libsan_rpath = @link_libsan_rpath@
link_libtsan = @link_libtsan@
link_libubsan = @link_libubsan@
localedir = @localedir@
@@ -660,6 +660,7 @@ link_libubsan
link_libtsan
link_libhwasan
link_libasan
+link_libsan_rpath
HWASAN_SUPPORTED_FALSE
HWASAN_SUPPORTED_TRUE
LSAN_SUPPORTED_FALSE
@@ -12359,7 +12360,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12362 "configure"
+#line 12363 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -12465,7 +12466,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12468 "configure"
+#line 12469 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -15935,6 +15936,11 @@ if test "x$ac_cv_lib_dl_dlsym" = xyes; then :
link_sanitizer_common="-ldl $link_sanitizer_common"
fi
+lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+if test -n "$with_cross_host" &&
+ test x"$with_cross_host" != x"no"; then
+ link_libsan_rpath="-rpath-link=%R/../${target_alias}/lib/$lt_multi_os_dir"
+fi
# Set up the set of additional libraries that we need to link against for libasan.
link_libasan=$link_sanitizer_common
@@ -118,6 +118,13 @@ AC_CHECK_LIB(rt, shm_open,
AC_CHECK_LIB(dl, dlsym,
[link_sanitizer_common="-ldl $link_sanitizer_common"])
+lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+if test -n "$with_cross_host" &&
+ test x"$with_cross_host" != x"no"; then
+ link_libsan_rpath="-rpath-link=%R/../../${target_alias}/lib/$lt_multi_os_dir"
+fi
+AC_SUBST(link_libsan_rpath)
+
# Set up the set of additional libraries that we need to link against for libasan.
link_libasan=$link_sanitizer_common
AC_SUBST(link_libasan)
@@ -376,6 +376,7 @@ libexecdir = @libexecdir@
link_libasan = @link_libasan@
link_libhwasan = @link_libhwasan@
link_liblsan = @link_liblsan@
+link_libsan_rpath = @link_libsan_rpath@
link_libtsan = @link_libtsan@
link_libubsan = @link_libubsan@
localedir = @localedir@
@@ -305,6 +305,7 @@ libexecdir = @libexecdir@
link_libasan = @link_libasan@
link_libhwasan = @link_libhwasan@
link_liblsan = @link_liblsan@
+link_libsan_rpath = @link_libsan_rpath@
link_libtsan = @link_libtsan@
link_libubsan = @link_libubsan@
localedir = @localedir@
@@ -355,6 +355,7 @@ libexecdir = @libexecdir@
link_libasan = @link_libasan@
link_libhwasan = @link_libhwasan@
link_liblsan = @link_liblsan@
+link_libsan_rpath = @link_libsan_rpath@
link_libtsan = @link_libtsan@
link_libubsan = @link_libubsan@
localedir = @localedir@
@@ -11,3 +11,5 @@
*link_liblsan: @link_liblsan@
+*link_libsan_rpath: @link_libsan_rpath@
+
@@ -350,6 +350,7 @@ libexecdir = @libexecdir@
link_libasan = @link_libasan@
link_libhwasan = @link_libhwasan@
link_liblsan = @link_liblsan@
+link_libsan_rpath = @link_libsan_rpath@
link_libtsan = @link_libtsan@
link_libubsan = @link_libubsan@
localedir = @localedir@
@@ -342,6 +342,7 @@ libexecdir = @libexecdir@
link_libasan = @link_libasan@
link_libhwasan = @link_libhwasan@
link_liblsan = @link_liblsan@
+link_libsan_rpath = @link_libsan_rpath@
link_libtsan = @link_libtsan@
link_libubsan = @link_libubsan@
localedir = @localedir@
@@ -379,6 +379,7 @@ libexecdir = @libexecdir@
link_libasan = @link_libasan@
link_libhwasan = @link_libhwasan@
link_liblsan = @link_liblsan@
+link_libsan_rpath = @link_libsan_rpath@
link_libtsan = @link_libtsan@
link_libubsan = @link_libubsan@
localedir = @localedir@
@@ -344,6 +344,7 @@ libexecdir = @libexecdir@
link_libasan = @link_libasan@
link_libhwasan = @link_libhwasan@
link_liblsan = @link_liblsan@
+link_libsan_rpath = @link_libsan_rpath@
link_libtsan = @link_libtsan@
link_libubsan = @link_libubsan@
localedir = @localedir@