Merge steps.mk into ct-ng

Signed-off-by: Alexey Neyman <stilor@att.net>

1 files changed, 57 insertions, 0 deletions

diff --git a/ct-ng.in b/ct-ng.in
index 761b8856..0b1e47d4 100644
--- a/ct-ng.in
+++ b/ct-ng.in
@@ -136,6 +136,7 @@ help-samples::
 help-build::
 	@echo
 	@echo  'Build actions (#: force number of // jobs):'
+	@echo  '  list-steps         - List all build steps'
 
 help-clean::
 	@echo
@@ -152,6 +153,8 @@ help-env::
 	else \
 		echo 'Environment variables (see http://crosstool-ng.github.io/docs/build/)'; \
 	fi
+	@echo  '  STOP=step          - Stop the build just after this step (list with list-steps)'
+	@echo  '  RESTART=step       - Restart the build just before this step (list with list-steps)'
 
 help-tail::
 	@echo
@@ -213,6 +216,60 @@ build: .config
 build.%:
 	$(SILENT)$(MAKE) -rf $(CT_NG) build CT_JOBS=$*
 
+# The _for_build steps are noop for native and cross,
+# but are actual steps for canadian and cross-native.
+# Please keep the last line with a '\' and keep the following empty line:
+# it helps when diffing and merging.
+CT_STEPS := \
+            companion_tools_for_build  \
+            companion_libs_for_build   \
+            binutils_for_build         \
+            companion_tools_for_host   \
+            companion_libs_for_host    \
+            binutils_for_host          \
+            cc_core_pass_1             \
+            kernel_headers             \
+            libc_start_files           \
+            cc_core_pass_2             \
+            libc                       \
+            cc_for_build               \
+            cc_for_host                \
+            libc_post_cc               \
+            companion_libs_for_target  \
+            binutils_for_target        \
+            debug                      \
+            test_suite                 \
+            finish                     \
+
+# Keep an empty line above this comment, so the last
+# back-slash terminated line works as expected.
+
+# Make the list available to sub-processes (scripts/crosstool-NG.sh needs it)
+export CT_STEPS
+
+# Print the steps list
+PHONY += list-steps
+list-steps:
+	@echo  'Available build steps, in order:'
+	@for step in $(CT_STEPS); do    \
+	     echo "  - $${step}";       \
+	 done
+	@echo  'Use "<step>" as action to execute only that step.'
+	@echo  'Use "+<step>" as action to execute up to that step.'
+	@echo  'Use "<step>+" as action to execute from that step onward.'
+
+# ----------------------------------------------------------
+# This part deals with executing steps
+
+$(CT_STEPS):
+	$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) RESTART=$@ STOP=$@ build
+
+$(patsubst %,+%,$(CT_STEPS)):
+	$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) STOP=$(patsubst +%,%,$@) build
+
+$(patsubst %,%+,$(CT_STEPS)):
+	$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) RESTART=$(patsubst %+,%,$@) build
+
 PHONY += version
 version:
 	@echo 'This is crosstool-NG version $(CT_VERSION)'