checkpatch: fix defect in printk(KERN_<LEVEL> 80 column exceptions
[linux-2.6.git] / scripts / Makefile.lib
index ea48b82..93b2b59 100644 (file)
@@ -4,6 +4,11 @@ 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
 # ===========================================================================
 
@@ -96,11 +101,31 @@ basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
 modname_flags  = $(if $(filter 1,$(words $(modname))),\
                  -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
 
-orig_c_flags   = $(KBUILD_CFLAGS) $(ccflags-y) $(CFLAGS_$(basetarget).o)
+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_AFLAGS) $(asflags-y) $(AFLAGS_$(basetarget).o)
+_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)), \
+               $(CFLAGS_GCOV))
+endif
+
+ifdef CONFIG_SYMBOL_PREFIX
+_sym_flags = -DSYMBOL_PREFIX=$(patsubst "%",%,$(CONFIG_SYMBOL_PREFIX))
+_cpp_flags += $(_sym_flags)
+_a_flags += $(_sym_flags)
+endif
+
+
 # If building the kernel in a separate objtree expand all occurrences
 # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
 
@@ -119,14 +144,15 @@ __a_flags =                          $(call flags,_a_flags)
 __cpp_flags     =                          $(call flags,_cpp_flags)
 endif
 
-c_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
-                $(__c_flags) $(modkern_cflags) \
+c_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE)     \
+                $(__c_flags) $(modkern_cflags)                           \
                 -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_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) $(ldflags-y)
 
@@ -171,6 +197,99 @@ cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 # ---------------------------------------------------------------------------
 
 quiet_cmd_gzip = GZIP    $@
-cmd_gzip = gzip -f -9 < $< > $@
+cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
+       (rm -f $@ ; false)
+
+# DTC
+# ---------------------------------------------------------------------------
+
+# Generate an assembly file to wrap the output of the device tree compiler
+quiet_cmd_dt_S_dtb= DTB    $@
+cmd_dt_S_dtb=                                          \
+(                                                      \
+       echo '\#include <asm-generic/vmlinux.lds.h>';   \
+       echo '.section .dtb.init.rodata,"a"';           \
+       echo '.balign STRUCT_ALIGNMENT';                \
+       echo '.global __dtb_$(*F)_begin';               \
+       echo '__dtb_$(*F)_begin:';                      \
+       echo '.incbin "$<" ';                           \
+       echo '__dtb_$(*F)_end:';                        \
+       echo '.global __dtb_$(*F)_end';                 \
+       echo '.balign STRUCT_ALIGNMENT';                \
+) > $@
+
+$(obj)/%.dtb.S: $(obj)/%.dtb
+       $(call cmd,dt_S_dtb)
+
+quiet_cmd_dtc = DTC     $@
+cmd_dtc = $(objtree)/scripts/dtc/dtc -O dtb -o $@ -b 0 $(DTC_FLAGS) $<
+
+# 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)
+
+# XZ
+# ---------------------------------------------------------------------------
+# Use xzkern to compress the kernel image and xzmisc to compress other things.
+#
+# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
+# of the kernel decompressor. A BCJ filter is used if it is available for
+# the target architecture. xzkern also appends uncompressed size of the data
+# using size_append. The .xz format has the size information available at
+# the end of the file too, but it's in more complex format and it's good to
+# avoid changing the part of the boot code that reads the uncompressed size.
+# Note that the bytes added by size_append will make the xz tool think that
+# the file is corrupt. This is expected.
+#
+# xzmisc doesn't use size_append, so it can be used to create normal .xz
+# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
+# big dictionary would increase the memory usage too much in the multi-call
+# decompression mode. A BCJ filter isn't used either.
+quiet_cmd_xzkern = XZKERN  $@
+cmd_xzkern = (cat $(filter-out FORCE,$^) | \
+       sh $(srctree)/scripts/xz_wrap.sh && \
+       $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+       (rm -f $@ ; false)
+
+quiet_cmd_xzmisc = XZMISC  $@
+cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
+       xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
+       (rm -f $@ ; false)
+
+# misc stuff
+# ---------------------------------------------------------------------------
+quote:="