[U-Boot] [PATCH 1/2] tools, config.mk: Add gcc-version.sh, cc-version test from Linux

Tom Rini
2012-03-16T15:27:47Z

Added from Linux - commit fde7d9049e55ab85a390be7f415d74c9f62dd0f9

Signed-off-by: Tom Rini <trini@ti.com>
---
config.mk | 6 +++++-
tools/gcc-version.sh | 32 ++++++++++++++++++++++++++++++++
2 files changed, 37 insertions(+), 1 deletions(-)
create mode 100755 tools/gcc-version.sh

diff --git a/config.mk b/config.mk
index ddaa477..8f4a253 100644
--- a/config.mk
+++ b/config.mk
@@ -104,7 +104,7 @@ HOSTCFLAGS += -pedantic

#########################################################################
#
-# Option checker (courtesy linux kernel) to ensure
+# Option checker, gcc version (courtesy linux kernel) to ensure
# only supported compiler options are used
#
CC_OPTIONS_CACHE_FILE := $(OBJTREE)/include/generated/cc_options.mk
@@ -126,6 +126,10 @@ cc-option = $(strip $(if $(findstring $1,$(CC_OPTIONS)),$1,\
$(if $(call cc-option-sys,$1),$1,$2)))
endif

+# cc-version
+# Usage gcc-ver := $(call cc-version)
+cc-version = $(shell $(SHELL) $(SRCTREE)/tools/gcc-version.sh $(CC))
+
#
# Include the make variables (CC, etc...)
#
diff --git a/tools/gcc-version.sh b/tools/gcc-version.sh
new file mode 100755
index 0000000..debecb5
--- /dev/null
+++ b/tools/gcc-version.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+#
+# 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 [ "$1" = "-p" ] ; then
+ with_patchlevel=1;
+ shift;
+fi
+
+compiler="$*"
+
+if [ ${#compiler} -eq 0 ]; then
+ echo "Error: No compiler specified."
+ printf "Usage:\n\t$0 <gcc-command>\n"
+ exit 1
+fi
+
+MAJOR=$(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
--
1.7.0.4