--- /dev/null
+Disable building of tests
+
+libunwind tests do not build with uClibc, so we disable them.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+Index: b/Makefile.am
+===================================================================
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -36,7 +36,7 @@
+
+ nodist_include_HEADERS = include/libunwind-common.h
+
+-SUBDIRS = src tests doc
++SUBDIRS = src doc
+
+ noinst_HEADERS = include/dwarf.h include/dwarf_i.h include/dwarf-eh.h \
+ include/compiler.h include/libunwind_i.h include/mempool.h \
+Index: b/Makefile.in
+===================================================================
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -313,7 +313,7 @@
+ $(am__append_7) $(am__append_8) $(am__append_9) \
+ $(am__append_10)
+ nodist_include_HEADERS = include/libunwind-common.h
+-SUBDIRS = src tests doc
++SUBDIRS = src doc
+ noinst_HEADERS = include/dwarf.h include/dwarf_i.h include/dwarf-eh.h \
+ include/compiler.h include/libunwind_i.h include/mempool.h \
+ include/remote.h \
--- /dev/null
+From 24484e80b3e329c9edee1995e102f8612eedb79c Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Tue, 13 May 2014 23:32:27 +0200
+Subject: [PATCH] Add AO_REQUIRE_CAS to fix build on ARM < v6
+
+ARM earlier than ARMv6, such as ARMv4 and ARMv5 do not provide
+optimize atomic operations in libatomic_ops. Since libunwind is using
+such operations, it should define AO_REQUIRE_CAS before including
+<atomic_ops.h> so that libatomic_ops knows it should use emulated
+atomic operations instead (even though they are obviously a lot more
+expensive).
+
+Also, while real atomic operations are all inline functions and
+therefore linking against libatomic_ops was not required, the emulated
+atomic operations actually require linking against libatomic_ops, so
+the commented AC_CHECK_LIB test in acinclude.m4 is uncommented to make
+sure we link against libatomic_ops.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ acinclude.m4 | 8 +-------
+ include/libunwind_i.h | 1 +
+ 2 files changed, 2 insertions(+), 7 deletions(-)
+
+diff --git a/acinclude.m4 b/acinclude.m4
+index 497f7c2..9c15af1 100644
+--- a/acinclude.m4
++++ b/acinclude.m4
+@@ -22,11 +22,5 @@ fi])
+ AC_DEFUN([CHECK_ATOMIC_OPS],
+ [dnl Check whether the system has the atomic_ops package installed.
+ AC_CHECK_HEADERS(atomic_ops.h)
+-#
+-# Don't link against libatomic_ops for now. We don't want libunwind
+-# to depend on libatomic_ops.so. Fortunately, none of the platforms
+-# we care about so far need libatomic_ops.a (everything is done via
+-# inline macros).
+-#
+-# AC_CHECK_LIB(atomic_ops, main)
++ AC_CHECK_LIB(atomic_ops, main)
+ ])
+diff --git a/include/libunwind_i.h b/include/libunwind_i.h
+index 23f615e..deabdfd 100644
+--- a/include/libunwind_i.h
++++ b/include/libunwind_i.h
+@@ -95,6 +95,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
+ (pthread_mutex_unlock != NULL ? pthread_mutex_unlock (l) : 0)
+
+ #ifdef HAVE_ATOMIC_OPS_H
++# define AO_REQUIRE_CAS
+ # include <atomic_ops.h>
+ static inline int
+ cmpxchg_ptr (void *addr, void *old, void *new)
+--
+1.9.2
+
--- /dev/null
+From f1684379dfaf8018d5d4c1945e292a56d0fab245 Mon Sep 17 00:00:00 2001
+From: Thierry Reding <treding@nvidia.com>
+Date: Fri, 27 Jun 2014 08:40:33 +0200
+Subject: [PATCH] Link libunwind to libgcc_s rather than libgcc
+
+For some architectures, -lgcc and -lgcc_s are not equivalent. On ARM for
+example, libgcc_s.so.1 contains some symbols needed by libunwind which
+are not present in libgcc.
+
+This causes the following link error when building the X.Org X server
+with libunwind support:
+
+ CCLD Xorg
+ /usr/lib/libunwind.so: undefined reference to `__aeabi_unwind_cpp_pr0'
+ /usr/lib/libunwind.so: undefined reference to `__aeabi_unwind_cpp_pr1'
+
+Linking against libgcc_s explicitly solves this problem.
+
+Signed-off-by: Thierry Reding <treding@nvidia.com>
+[yann.morin.1998@free.fr: backport to libunwind 1.1]
+Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
+---
+ configure.ac | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index 4e2fd23..a77cf01 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -258,7 +258,7 @@ else
+
+ if test x$GCC = xyes -a x$intel_compiler != xyes; then
+ CFLAGS="${CFLAGS} -fexceptions -Wall -Wsign-compare"
+- LIBCRTS="-lgcc"
++ LIBCRTS="-lgcc_s"
+ fi
+ AC_MSG_RESULT([$intel_compiler])
+
+--
+1.9.1
+
+++ /dev/null
-Disable building of tests
-
-libunwind tests do not build with uClibc, so we disable them.
-
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-
-Index: b/Makefile.am
-===================================================================
---- a/Makefile.am
-+++ b/Makefile.am
-@@ -36,7 +36,7 @@
-
- nodist_include_HEADERS = include/libunwind-common.h
-
--SUBDIRS = src tests doc
-+SUBDIRS = src doc
-
- noinst_HEADERS = include/dwarf.h include/dwarf_i.h include/dwarf-eh.h \
- include/compiler.h include/libunwind_i.h include/mempool.h \
-Index: b/Makefile.in
-===================================================================
---- a/Makefile.in
-+++ b/Makefile.in
-@@ -313,7 +313,7 @@
- $(am__append_7) $(am__append_8) $(am__append_9) \
- $(am__append_10)
- nodist_include_HEADERS = include/libunwind-common.h
--SUBDIRS = src tests doc
-+SUBDIRS = src doc
- noinst_HEADERS = include/dwarf.h include/dwarf_i.h include/dwarf-eh.h \
- include/compiler.h include/libunwind_i.h include/mempool.h \
- include/remote.h \
+++ /dev/null
-From 24484e80b3e329c9edee1995e102f8612eedb79c Mon Sep 17 00:00:00 2001
-From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-Date: Tue, 13 May 2014 23:32:27 +0200
-Subject: [PATCH] Add AO_REQUIRE_CAS to fix build on ARM < v6
-
-ARM earlier than ARMv6, such as ARMv4 and ARMv5 do not provide
-optimize atomic operations in libatomic_ops. Since libunwind is using
-such operations, it should define AO_REQUIRE_CAS before including
-<atomic_ops.h> so that libatomic_ops knows it should use emulated
-atomic operations instead (even though they are obviously a lot more
-expensive).
-
-Also, while real atomic operations are all inline functions and
-therefore linking against libatomic_ops was not required, the emulated
-atomic operations actually require linking against libatomic_ops, so
-the commented AC_CHECK_LIB test in acinclude.m4 is uncommented to make
-sure we link against libatomic_ops.
-
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
----
- acinclude.m4 | 8 +-------
- include/libunwind_i.h | 1 +
- 2 files changed, 2 insertions(+), 7 deletions(-)
-
-diff --git a/acinclude.m4 b/acinclude.m4
-index 497f7c2..9c15af1 100644
---- a/acinclude.m4
-+++ b/acinclude.m4
-@@ -22,11 +22,5 @@ fi])
- AC_DEFUN([CHECK_ATOMIC_OPS],
- [dnl Check whether the system has the atomic_ops package installed.
- AC_CHECK_HEADERS(atomic_ops.h)
--#
--# Don't link against libatomic_ops for now. We don't want libunwind
--# to depend on libatomic_ops.so. Fortunately, none of the platforms
--# we care about so far need libatomic_ops.a (everything is done via
--# inline macros).
--#
--# AC_CHECK_LIB(atomic_ops, main)
-+ AC_CHECK_LIB(atomic_ops, main)
- ])
-diff --git a/include/libunwind_i.h b/include/libunwind_i.h
-index 23f615e..deabdfd 100644
---- a/include/libunwind_i.h
-+++ b/include/libunwind_i.h
-@@ -95,6 +95,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
- (pthread_mutex_unlock != NULL ? pthread_mutex_unlock (l) : 0)
-
- #ifdef HAVE_ATOMIC_OPS_H
-+# define AO_REQUIRE_CAS
- # include <atomic_ops.h>
- static inline int
- cmpxchg_ptr (void *addr, void *old, void *new)
---
-1.9.2
-
projects / buildroot.git / commitdiff