[PATCH 1/5] scripts/gdb: delay generation of gdb constants.py

From: Masahiro Yamada
Date: Tue Feb 19 2019 - 04:33:37 EST


scripts/gdb/linux/constants.py is never used in the kernel build
process. There is no good reason to create it so early.

Get it out of the 'prepare' stage.

Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---

Kbuild | 10 ----------
Makefile | 11 +++++++++++
2 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/Kbuild b/Kbuild
index 65db5be..4cebcc7 100644
--- a/Kbuild
+++ b/Kbuild
@@ -6,7 +6,6 @@
# 2) Generate timeconst.h
# 3) Generate asm-offsets.h (may need bounds.h and timeconst.h)
# 4) Check for missing system calls
-# 5) Generate constants.py (may need bounds.h)

#####
# 1) Generate bounds.h
@@ -58,14 +57,5 @@ quiet_cmd_syscalls = CALL $<
missing-syscalls: scripts/checksyscalls.sh $(offsets-file) FORCE
$(call cmd,syscalls)

-#####
-# 5) Generate constants for Python GDB integration
-#
-
-extra-$(CONFIG_GDB_SCRIPTS) += build_constants_py
-
-build_constants_py: $(timeconst-file) $(bounds-file)
- @$(MAKE) $(build)=scripts/gdb/linux $@
-
# Keep these three files during make clean
no-clean-files := $(bounds-file) $(offsets-file) $(timeconst-file)
diff --git a/Makefile b/Makefile
index 88db36b..26dbcb7 100644
--- a/Makefile
+++ b/Makefile
@@ -1513,6 +1513,17 @@ PHONY += $(DOC_TARGETS)
$(DOC_TARGETS): scripts_basic FORCE
$(Q)$(MAKE) $(build)=Documentation $@

+# Misc
+# ---------------------------------------------------------------------------
+
+PHONY += scripts_gdb
+scripts_gdb: prepare
+ $(Q)$(MAKE) $(build)=scripts/gdb/linux build_constants_py
+
+ifdef CONFIG_GDB_SCRIPTS
+all: scripts_gdb
+endif
+
else # KBUILD_EXTMOD

###
--
2.7.4