From 65cd3fa81ff48cd44bcb3d9baf646dade15b9131 Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Sat, 12 Jun 2010 00:19:46 +0200 Subject: [PATCH] Add basic errno support. Needed for hash table support; probably useful in a lot of other places as well. Signed-off-by: Wolfgang Denk --- include/errno.h | 9 +++++++++ lib/Makefile | 1 + lib/errno.c | 1 + 3 files changed, 11 insertions(+) create mode 100644 include/errno.h create mode 100644 lib/errno.c diff --git a/include/errno.h b/include/errno.h new file mode 100644 index 000000000..e24a33b38 --- /dev/null +++ b/include/errno.h @@ -0,0 +1,9 @@ +#ifndef _ERRNO_H + +#include + +extern int errno; + +#define __set_errno(val) do { errno = val; } while (0) + +#endif /* _ERRNO_H */ diff --git a/lib/Makefile b/lib/Makefile index c45f07ca1..c26536d0b 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -37,6 +37,7 @@ COBJS-y += crc32.o COBJS-y += ctype.o COBJS-y += display_options.o COBJS-y += div64.o +COBJS-y += errno.o COBJS-$(CONFIG_GZIP) += gunzip.o COBJS-$(CONFIG_LMB) += lmb.o COBJS-y += ldiv.o diff --git a/lib/errno.c b/lib/errno.c new file mode 100644 index 000000000..8330a8fd1 --- /dev/null +++ b/lib/errno.c @@ -0,0 +1 @@ +int errno = 0;