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-rw-r--r--libc/Makefile1
-rw-r--r--libc/include/errno.h2
-rw-r--r--libc/src/errno.c3
3 files changed, 6 insertions, 0 deletions
diff --git a/libc/Makefile b/libc/Makefile
index 64cfa5d..9ef6392 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -20,6 +20,7 @@ src/read.c \
src/write.c \
\
src/stdio.c \
+src/errno.c \
\
src/reent.c \
\
diff --git a/libc/include/errno.h b/libc/include/errno.h
index c88ea64..5e0af8c 100644
--- a/libc/include/errno.h
+++ b/libc/include/errno.h
@@ -137,4 +137,6 @@ enum errno_t {
ERFKILL = 132,
};
+volatile extern enum errno_t errno;
+
#endif
diff --git a/libc/src/errno.c b/libc/src/errno.c
new file mode 100644
index 0000000..6e6a6e8
--- /dev/null
+++ b/libc/src/errno.c
@@ -0,0 +1,3 @@
+#include "errno.h"
+
+volatile enum errno_t errno = ENOERROR;