[armel,armhf] linux-tools: Enable use of libunwind

perf requires some architecture-specific code in conjunction with
libunwind.  It used to enable use of libunwind automatically anyway,
so we had to override this for architectures where it would fail to
build (by setting NO_LIBUNWIND=1).

The makefile is now fixed so we don't need to this.  Since perf now
has the extra code for arm, this enables use of libunwind there.

svn path=/dists/sid/linux-tools/; revision=21910

debian/build/tools/perf/Makefile

@@ -3,20 +3,17 @@ OUTDIR = tools/perf
 include ../../Makefile.inc
 
 DEB_HOST_ARCH_CPU := $(shell dpkg-architecture -qDEB_HOST_ARCH_CPU)
-NO_LIBUNWIND=1
 
 ifeq ($(DEB_HOST_ARCH_CPU),alpha)
   KERNEL_ARCH_PERF = alpha
 else ifeq ($(DEB_HOST_ARCH_CPU),amd64)
   KERNEL_ARCH_PERF = x86_64
-  NO_LIBUNWIND=
 else ifeq ($(DEB_HOST_ARCH_CPU),arm)
   KERNEL_ARCH_PERF = arm
 else ifeq ($(DEB_HOST_ARCH_CPU),hppa)
   KERNEL_ARCH_PERF = parisc
 else ifeq ($(DEB_HOST_ARCH_CPU),i386)
   KERNEL_ARCH_PERF = i386
-  NO_LIBUNWIND=
 else ifeq ($(DEB_HOST_ARCH_CPU),powerpc)
   KERNEL_ARCH_PERF = powerpc
 else ifeq ($(DEB_HOST_ARCH_CPU),powerpc64)
@@ -35,7 +32,7 @@ else ifeq ($(DEB_HOST_ARCH_CPU),sparc64)
   KERNEL_ARCH_PERF = sparc
 endif
 
-MAKE_PERF := $(MAKE) prefix=/usr V=1 ARCH=$(KERNEL_ARCH_PERF) EXTRA_WARNINGS=-Wno-error NO_LIBUNWIND=$(NO_LIBUNWIND)
+MAKE_PERF := $(MAKE) prefix=/usr V=1 ARCH=$(KERNEL_ARCH_PERF) EXTRA_WARNINGS=-Wno-error
 
 # Disable Gtk UI until it's more usable
 MAKE_PERF += NO_GTK2=1

debian/changelog

@@ -3,6 +3,7 @@ linux-tools (3.16-3) UNRELEASED; urgency=low
   * linux-tools: Fix build configuration to avoid linking perf with libbfd
     (Closes: #763002)
   * linux-tools: Add a check that perf is not linked with libbfd
+  * [armel,armhf] linux-tools: Enable use of libunwind
 
  -- Ben Hutchings <ben@decadent.org.uk>  Sat, 27 Sep 2014 02:39:21 +0100