diff --git a/Makefile b/Makefile index 282c5ca3ddcee4734b2e07e836be32edf9a8cf80..f7d61d99a5247cac559e53237c6c506a3f4085c4 100644 --- a/Makefile +++ b/Makefile @@ -112,22 +112,8 @@ endif export KBUILD_MODULES KBUILD_BUILTIN KBUILD_VERBOSE KBUILD_CHECKSRC -# Beautify output -# --------------------------------------------------------------------------- -# -# Normally, we echo the whole command before executing it. By making -# that echo $($(quiet)$(cmd)), we now have the possibility to set -# $(quiet) to choose other forms of output instead, e.g. -# -# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ -# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< -# -# If $(quiet) is empty, the whole command will be printed. -# If it is set to "quiet_", only the short version will be printed. -# If it is set to "silent_", nothing wil be printed at all, since -# the variable $(silent_cmd_cc_o_c) doesn't exist. - # To put more focus on warnings, less verbose as default +# Use 'make V=1' to see the full commands ifdef V ifeq ("$(origin V)", "command line") @@ -138,6 +124,9 @@ ifndef KBUILD_VERBOSE KBUILD_VERBOSE = 0 endif +# Call sparse as part of compilation of C files +# Use 'make C=1' to enable sparse checking + ifdef C ifeq ("$(origin C)", "command line") KBUILD_CHECKSRC = $(C) @@ -147,6 +136,7 @@ ifndef KBUILD_CHECKSRC KBUILD_CHECKSRC = 0 endif +# Do not print 'Entering directory ...' MAKEFLAGS += --no-print-directory @@ -155,8 +145,28 @@ MAKEFLAGS += --no-print-directory #MAKEFLAGS += -rR -# If the user wants quiet mode, echo short versions of the commands -# only +# Beautify output +# --------------------------------------------------------------------------- +# +# Normally, we echo the whole command before executing it. By making +# that echo $($(quiet)$(cmd)), we now have the possibility to set +# $(quiet) to choose other forms of output instead, e.g. +# +# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ +# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< +# +# If $(quiet) is empty, the whole command will be printed. +# If it is set to "quiet_", only the short version will be printed. +# If it is set to "silent_", nothing wil be printed at all, since +# the variable $(silent_cmd_cc_o_c) doesn't exist. +# +# A simple variant is to prefix commands with $(Q) - that's usefull +# for commands that shall be hidden in non-verbose mode. +# +# $(Q)ln $@ :< +# +# If KBUILD_VERBOSE equals 0 then the above command will be hidden. +# If KBUILD_VERBOSE equals 1 then the above command is displayed. ifeq ($(KBUILD_VERBOSE),1) quiet = @@ -166,8 +176,8 @@ else Q = @ endif -# If the user is running make -s (silent mode), suppress echoing of -# commands +# If the user is running make -s (silent mode), suppress echoing of +# commands ifneq ($(findstring s,$(MAKEFLAGS)),) quiet=silent_ @@ -175,7 +185,7 @@ endif export quiet Q KBUILD_VERBOSE -# Paths to obj / src tree +# Paths to obj / src tree src := . obj := . @@ -184,7 +194,7 @@ objtree := . export srctree objtree -# Make variables (CC, etc...) +# Make variables (CC, etc...) AS = $(CROSS_COMPILE)as LD = $(CROSS_COMPILE)ld