user/libc: generate strerror from camellia/errno.h

1 files changed, 20 insertions, 0 deletions

diff --git a/src/user/lib/include/__errno.h.awk b/src/user/lib/include/__errno.h.awk
new file mode 100644
index 0000000..6232835
--- /dev/null
+++ b/src/user/lib/include/__errno.h.awk
@@ -0,0 +1,20 @@
+BEGIN {
+	print "/* generated by awk */";
+	print "#ifdef E";
+}
+
+END {
+	print "#endif";
+}
+
+/#define/ {
+	comment = $2;
+	num = $3;
+	# extract the comment, if present
+	if (index($0, "/*")) {
+		sub(/[^/]*\/\*/, "");
+		sub(/ *\*\//, "");
+		comment = comment $0;
+	}
+	printf "E(%3s, \"%s\")\n", num, comment;
+}