1 files changed, 18 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index fce530a66e33..7a06c16602fd 100644
--- a/Makefile
+++ b/Makefile
@@ -921,8 +921,20 @@ depend dep:
 INSTALL_HDR_PATH=$(objtree)/usr
 export INSTALL_HDR_PATH
 
+HDRARCHES=$(filter-out generic,$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild)))
+
+PHONY += headers_install_all
+headers_install_all: include/linux/version.h scripts_basic FORCE
+        $(Q)$(MAKE) $(build)=scripts scripts/unifdef
+        $(Q)for arch in $(HDRARCHES); do \
+         $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\
+         done
+
 PHONY += headers_install
 headers_install: include/linux/version.h scripts_basic FORCE
+        @if [ ! -r include/asm-$(ARCH)/Kbuild ]; then \
+          echo '*** Error: Headers not exportable for this architecture ($(ARCH))'; \
+          exit 1 ; fi
         $(Q)$(MAKE) $(build)=scripts scripts/unifdef
         $(Q)rm -rf $(INSTALL_HDR_PATH)/include
         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst obj=include
@@ -1107,13 +1119,17 @@ help:
         @echo  '  cscope          - Generate cscope index'
         @echo  '  kernelrelease   - Output the release version string'
         @echo  '  kernelversion   - Output the version stored in Makefile'
-        @echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'
+        @if [ -r include/asm-$(ARCH)/Kbuild ]; then \
+         echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
+         fi
         @echo  '                    (default: $(INSTALL_HDR_PATH))'
         @echo  ''
         @echo  'Static analysers'
         @echo  '  checkstack      - Generate a list of stack hogs'
         @echo  '  namespacecheck  - Name space analysis on compiled kernel'
-        @echo  '  headers_check   - Sanity check on exported headers'
+        @if [ -r include/asm-$(ARCH)/Kbuild ]; then \
+         echo  '  headers_check   - Sanity check on exported headers'; \
+         fi
         @echo  ''
         @echo  'Kernel packaging:'
         @$(MAKE) $(build)=$(package-dir) help