lib/nolibc: Add definition of ARG_MAX

Add definition of ARG_MAX to limits.h. POSIX defines ARG_MAX as the
number of bytes available for the combined arguments and env vars
of a new process. Whether that additionally includes NULL terminator,
pointers, or alignment bytes is IMPLEMENTATION DEFINED.

Signed-off-by: Michalis Pappas <michalis@unikraft.io>
Approved-by: Andrei Tatar <andrei@unikraft.io>
Reviewed-by: Sergiu Moga <sergiu@unikraft.io>
Reviewed-by: Andrei Tatar <andrei@unikraft.io>
GitHub-Closes: #1386

diff --git a/lib/nolibc/include/limits.h b/lib/nolibc/include/limits.h
index 86d6553cf1fd31dd878b147d9d46ddc1167fd191..711df91141c7a6d03a5114570c0bbdd86efe6028 100644 (file)
--- a/lib/nolibc/include/limits.h
+++ b/lib/nolibc/include/limits.h
@@ -64,6 +64,8 @@ extern "C" {
 #define PATH_MAX 4096
 #define NAME_MAX 255
 
+#define ARG_MAX 4096
+
 #define IOV_MAX 1024
 
 #ifdef __cplusplus