+# Backward compatibility
+asflags-y += $(EXTRA_AFLAGS)
+ccflags-y += $(EXTRA_CFLAGS)
+cppflags-y += $(EXTRA_CPPFLAGS)
+ldflags-y += $(EXTRA_LDFLAGS)
+
+#
+# flags that take effect in sub directories
+export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
+export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y)
+
# Figure out what we need to build from the various variables
# ===========================================================================
# o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
# and add the directory to the list of dirs to descend into: $(subdir-m)
+# Determine modorder.
+# Unfortunately, we don't have information about ordering between -y
+# and -m subdirs. Just put -y's first.
+modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
+
__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
subdir-y += $(__subdir-y)
__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
extra-y := $(addprefix $(obj)/,$(extra-y))
always := $(addprefix $(obj)/,$(always))
targets := $(addprefix $(obj)/,$(targets))
+modorder := $(addprefix $(obj)/,$(modorder))
obj-y := $(addprefix $(obj)/,$(obj-y))
obj-m := $(addprefix $(obj)/,$(obj-m))
lib-y := $(addprefix $(obj)/,$(lib-y))
modname_flags = $(if $(filter 1,$(words $(modname))),\
-D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
-_c_flags = $(KBUILD_CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$(basetarget).o)
-_a_flags = $(KBUILD_AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
-_cpp_flags = $(KBUILD_CPPFLAGS) $(EXTRA_CPPFLAGS) $(CPPFLAGS_$(@F))
+#hash values
+ifdef CONFIG_DYNAMIC_DEBUG
+debug_flags = -D"DEBUG_HASH=$(shell ./scripts/basic/hash djb2 $(@D)$(modname))"\
+ -D"DEBUG_HASH2=$(shell ./scripts/basic/hash r5 $(@D)$(modname))"
+else
+debug_flags =
+endif
+
+orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
+ $(ccflags-y) $(CFLAGS_$(basetarget).o)
+_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
+_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
+ $(asflags-y) $(AFLAGS_$(basetarget).o)
+_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
+
+#
+# Enable gcov profiling flags for a file, directory or for all files depending
+# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
+# (in this order)
+#
+ifeq ($(CONFIG_GCOV_KERNEL),y)
+_c_flags += $(if $(patsubst n%,, \
+ $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
+ $(CFLAGS_GCOV))
+endif
+
+ifdef CONFIG_SYMBOL_PREFIX
+_cpp_flags += -DSYMBOL_PREFIX=$(patsubst "%",%,$(CONFIG_SYMBOL_PREFIX))
+endif
+
# If building the kernel in a separate objtree expand all occurrences
# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
__cpp_flags = $(call flags,_cpp_flags)
endif
-c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
- $(__c_flags) $(modkern_cflags) \
- -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags)
+c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
+ $(__c_flags) $(modkern_cflags) \
+ -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags) \
+ $(debug_flags)
-a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
+a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
$(__a_flags) $(modkern_aflags)
-cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(__cpp_flags)
+cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
+ $(__cpp_flags)
-ld_flags = $(LDFLAGS) $(EXTRA_LDFLAGS)
+ld_flags = $(LDFLAGS) $(ldflags-y)
# Finds the multi-part object the current object will be linked into
modname-multi = $(sort $(foreach m,$(multi-used),\
# ---------------------------------------------------------------------------
quiet_cmd_ld = LD $@
-cmd_ld = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) \
+cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
$(filter-out FORCE,$^) -o $@
# Objcopy
# ---------------------------------------------------------------------------
quiet_cmd_gzip = GZIP $@
-cmd_gzip = gzip -f -9 < $< > $@
+cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -f -9 > $@) || \
+ (rm -f $@ ; false)
+
+
+# Bzip2
+# ---------------------------------------------------------------------------
+
+# Bzip2 and LZMA do not include size in file... so we have to fake that;
+# append the size as a 32-bit littleendian number as gzip does.
+size_append = printf $(shell \
+dec_size=0; \
+for F in $1; do \
+ fsize=$$(stat -c "%s" $$F); \
+ dec_size=$$(expr $$dec_size + $$fsize); \
+done; \
+printf "%08x\n" $$dec_size | \
+ sed 's/\(..\)/\1 /g' | { \
+ read ch0 ch1 ch2 ch3; \
+ for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
+ printf '%s%03o' '\\' $$((0x$$ch)); \
+ done; \
+ } \
+)
+
+quiet_cmd_bzip2 = BZIP2 $@
+cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
+ bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+ (rm -f $@ ; false)
+
+# Lzma
+# ---------------------------------------------------------------------------
+quiet_cmd_lzma = LZMA $@
+cmd_lzma = (cat $(filter-out FORCE,$^) | \
+ lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+ (rm -f $@ ; false)
+quiet_cmd_lzo = LZO $@
+cmd_lzo = (cat $(filter-out FORCE,$^) | \
+ lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+ (rm -f $@ ; false)
+
+# misc stuff
+# ---------------------------------------------------------------------------
+quote:="
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