Add basic errno support.

Needed for hash table support; probably useful in a lot of other places as well. Signed-off-by: Wolfgang Denk <wd@denx.de>

Add basic errno support.
Needed for hash table support; probably useful in a lot of other places as well. Signed-off-by: Wolfgang Denk <wd@denx.de>
Wolfgang Denk
1 parent a2a649d73c
Showing 3 changed files with 11 additions and 0 deletions Side-by-side Diff
include/errno.h
lib/Makefile
lib/errno.c
+#ifndef _ERRNO_H
+
+#include <asm-generic/errno.h>
+
+extern int errno;
+
+#define __set_errno(val) do { errno = val; } while (0)
+
+#endif /* _ERRNO_H */
@@ -37,6 +37,7 @@
 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
+int errno = 0;
	1	+#ifndef _ERRNO_H
	2	+
	3	+#include <asm-generic/errno.h>
	4	+
	5	+extern int errno;
	6	+
	7	+#define __set_errno(val) do { errno = val; } while (0)
	8	+
	9	+#endif /* _ERRNO_H */
...	...	@@ -37,6 +37,7 @@
37	37	COBJS-y += ctype.o
38	38	COBJS-y += display_options.o
39	39	COBJS-y += div64.o
	40	+COBJS-y += errno.o
40	41	COBJS-$(CONFIG_GZIP) += gunzip.o
41	42	COBJS-$(CONFIG_LMB) += lmb.o
42	43	COBJS-y += ldiv.o