summaryrefslogtreecommitdiff
path: root/tools
diff options
context:
space:
mode:
Diffstat (limited to 'tools')
-rw-r--r--tools/.gitignore9
-rw-r--r--tools/scripts/define2mk.sed29
2 files changed, 38 insertions, 0 deletions
diff --git a/tools/.gitignore b/tools/.gitignore
new file mode 100644
index 0000000..c33679a
--- /dev/null
+++ b/tools/.gitignore
@@ -0,0 +1,9 @@
+/bmp_logo
+/crc32.c
+/envcrc
+/environment.c
+/gen_eth_addr
+/img2srec
+/mkimage
+/sha1.c
+/ubsha1
diff --git a/tools/scripts/define2mk.sed b/tools/scripts/define2mk.sed
new file mode 100644
index 0000000..6464627
--- /dev/null
+++ b/tools/scripts/define2mk.sed
@@ -0,0 +1,29 @@
+#
+# Sed script to parse CPP macros and generate output usable by make
+#
+# It is expected that this script is fed the output of 'gpp -dM'
+# which preprocesses the common.h header files and outputs the final
+# list of CPP macros (and whitespace is sanitized)
+#
+
+# Only process values prefixed with #define CONFIG_
+/^#define CONFIG_[A-Za-z0-9_]\+/ {
+ # Strip the #define prefix
+ s/#define *//;
+ # Change to form CONFIG_*=VALUE
+ s/ \+/=/;
+ # Drop trailing spaces
+ s/ *$//;
+ # drop quotes around string values
+ s/="\(.*\)"$/=\1/;
+ # Concatenate string values
+ s/" *"//g;
+ # Wrap non-numeral values with quotes
+ s/=\(.*\?[^0-9].*\)$/=\"\1\"/;
+ # Change '1' and empty values to "y" (not perfect, but
+ # supports conditional compilation in the makefiles
+ s/=$/=y/;
+ s/=1$/=y/;
+ # print the line
+ p
+}