path: root/Makefile
diff options
authorVinícius Tinti <viniciustinti@gmail.com>2017-04-24 13:04:58 -0700
committerMasahiro Yamada <yamada.masahiro@socionext.com>2017-04-25 08:13:52 +0900
commit433db3e260bc8134d4a46ddf20b3668937e12556 (patch)
tree2174c7cc5e16f1a275a8bfc456428099c94d2700 /Makefile
parentkbuild: Add better clang cross build support (diff)
kbuild: Add support to generate LLVM assembly files
Add rules to kbuild in order to generate LLVM assembly files with the .ll extension when using clang. # from c code make CC=clang kernel/pid.ll Signed-off-by: Vinícius Tinti <viniciustinti@gmail.com> Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'Makefile')
1 files changed, 5 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 88d607245791..439443176161 100644
--- a/Makefile
+++ b/Makefile
@@ -1373,6 +1373,8 @@ help:
@echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
@echo ' dir/ - Build all files in dir and below'
@echo ' dir/file.[ois] - Build specified target only'
+ @echo ' dir/file.ll - Build the LLVM assembly file'
+ @echo ' (requires compiler support for LLVM assembly generation)'
@echo ' dir/file.lst - Build specified mixed source/assembly target only'
@echo ' (requires a recent binutils and recent build (System.map))'
@echo ' dir/file.ko - Build module including final link'
@@ -1557,6 +1559,7 @@ clean: $(clean-dirs)
-o -name '*.symtypes' -o -name 'modules.order' \
-o -name modules.builtin -o -name '.tmp_*.o.*' \
-o -name '*.c.[012]*.*' \
+ -o -name '*.ll' \
-o -name '*.gcno' \) -type f -print | xargs rm -f
# Generate tags for editors
@@ -1660,6 +1663,8 @@ endif
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
%.symtypes: %.c prepare scripts FORCE
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+%.ll: %.c prepare scripts FORCE
+ $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
# Modules
/: prepare scripts FORCE