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Commit 0ab2a272 authored by Segher Boessenkool's avatar Segher Boessenkool Committed by Sam Ravnborg
Browse files

kbuild: New 'cc-fullversion' macro 



Prints a six-digit string including the GCC patchlevel.  Also fix
the 'usage' comment for cc-version.

Signed-off-by: default avatarSegher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent f241182b

scripts/Kbuild.include

+6 −1
Original line number Diff line number Diff line
@@ -100,9 +100,14 @@ cc-option-align = $(subst -functions=0,,\ 
	$(call cc-option,-falign-functions=0,-malign-functions=0))



# cc-version

# Usage gcc-ver := $(call cc-version,$(CC))

# Usage gcc-ver := $(call cc-version)

cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))



# cc-fullversion

# Usage gcc-ver := $(call cc-fullversion)

cc-fullversion = $(shell $(CONFIG_SHELL) \

	$(srctree)/scripts/gcc-version.sh -p $(CC))



# cc-ifversion

# Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)

cc-ifversion = $(shell [ $(call cc-version, $(CC)) $(1) $(2) ] && echo $(3))

scripts/gcc-version.sh

+12 −3
Original line number Diff line number Diff line 
#!/bin/sh

#

# gcc-version gcc-command

# gcc-version [-p] gcc-command

#

# Prints the gcc version of `gcc-command' in a canonical 4-digit form

# such as `0295' for gcc-2.95, `0303' for gcc-3.3, etc.

#

# With the -p option, prints the patchlevel as well, for example `029503' for

# gcc-2.95.3, `030301' for gcc-3.3.1, etc.

#



if [ $1 = "-p" ] ; then with_patchlevel=1; shift; fi



compiler="$*"



MAJOR=$(echo __GNUC__ | $compiler -E -xc - | tail -n 1)

MINOR=$(echo __GNUC_MINOR__ | $compiler -E -xc - | tail -n 1)

if [ "x$with_patchlevel" != "x" ] ; then

	PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -xc - | tail -n 1)

	printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL

else

	printf "%02d%02d\\n" $MAJOR $MINOR

fi