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authorIan Rogers <irogers@google.com>2022-12-01 20:57:39 -0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-12-14 11:16:12 -0300
commit1849f9f00926c54fa284be3b7f801de8b010572b (patch)
treeeebb1124bd909cec35776e3805454941a5e994b1 /tools/lib/api
parent8f4b1e3cebce5d12048409393de751e4d663ce42 (diff)
tools lib api: Add dependency test to install_headers
Compute the headers to be installed from their source headers and make each have its own build target to install it. Using dependencies avoids headers being reinstalled and getting a new timestamp which then causes files that depend on the header to be rebuilt. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Nicolas Schier <nicolas@fjasle.eu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Rix <trix@redhat.com> Cc: bpf@vger.kernel.org Cc: llvm@lists.linux.dev Link: https://lore.kernel.org/r/20221202045743.2639466-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/api')
-rw-r--r--tools/lib/api/Makefile38
1 files changed, 26 insertions, 12 deletions
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index 3649c7f7ea65..044860ac1ed1 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -88,10 +88,10 @@ define do_install_mkdir
endef
define do_install
- if [ ! -d '$(DESTDIR_SQ)$2' ]; then \
- $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
- fi; \
- $(INSTALL) $1 $(if $3,-m $3,) '$(DESTDIR_SQ)$2'
+ if [ ! -d '$2' ]; then \
+ $(INSTALL) -d -m 755 '$2'; \
+ fi; \
+ $(INSTALL) $1 $(if $3,-m $3,) '$2'
endef
install_lib: $(LIBFILE)
@@ -99,14 +99,28 @@ install_lib: $(LIBFILE)
$(call do_install_mkdir,$(libdir_SQ)); \
cp -fpR $(LIBFILE) $(DESTDIR)$(libdir_SQ)
-install_headers:
- $(call QUIET_INSTALL, libapi_headers) \
- $(call do_install,cpu.h,$(prefix)/include/api,644); \
- $(call do_install,debug.h,$(prefix)/include/api,644); \
- $(call do_install,io.h,$(prefix)/include/api,644); \
- $(call do_install,fd/array.h,$(prefix)/include/api/fd,644); \
- $(call do_install,fs/fs.h,$(prefix)/include/api/fs,644); \
- $(call do_install,fs/tracing_path.h,$(prefix)/include/api/fs,644);
+HDRS := cpu.h debug.h io.h
+FD_HDRS := fd/array.h
+FS_HDRS := fs/fs.h fs/tracing_path.h
+INSTALL_HDRS_PFX := $(DESTDIR)$(prefix)/include/api
+INSTALL_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(HDRS))
+INSTALL_FD_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(FD_HDRS))
+INSTALL_FS_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(FS_HDRS))
+
+$(INSTALL_HDRS): $(INSTALL_HDRS_PFX)/%.h: %.h
+ $(call QUIET_INSTALL, $@) \
+ $(call do_install,$<,$(INSTALL_HDRS_PFX)/,644)
+
+$(INSTALL_FD_HDRS): $(INSTALL_HDRS_PFX)/fd/%.h: fd/%.h
+ $(call QUIET_INSTALL, $@) \
+ $(call do_install,$<,$(INSTALL_HDRS_PFX)/fd/,644)
+
+$(INSTALL_FS_HDRS): $(INSTALL_HDRS_PFX)/fs/%.h: fs/%.h
+ $(call QUIET_INSTALL, $@) \
+ $(call do_install,$<,$(INSTALL_HDRS_PFX)/fs/,644)
+
+install_headers: $(INSTALL_HDRS) $(INSTALL_FD_HDRS) $(INSTALL_FS_HDRS)
+ $(call QUIET_INSTALL, libapi_headers)
install: install_lib install_headers