[PATCH 02/33] kbuild: New 'cc-fullversion' macro

Sam Ravnborg
2007-07-17T14:08:41Z

From: Segher Boessenkool <segher@kernel.crashing.org>

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

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
scripts/Kbuild.include | 7 ++++++-
scripts/gcc-version.sh | 15 ++++++++++++---
2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 06c1a37..677bc6c 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -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))
diff --git a/scripts/gcc-version.sh b/scripts/gcc-version.sh
index bb4fbea..8a1d187 100644
--- a/scripts/gcc-version.sh
+++ b/scripts/gcc-version.sh
@@ -1,14 +1,23 @@
#!/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)
-printf "%02d%02d\\n" $MAJOR $MINOR
-
+if [ "x$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
--
1.5.0.6