Implemented support for the "ps_strings" structure (grrrr...) for use in

the userland library libkvm.

1 files changed, 19 insertions, 3 deletions

diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c
index 6717e4e..b54e09b 100644
--- a/sys/kern/kern_exec.c
+++ b/sys/kern/kern_exec.c
@@ -28,7 +28,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: kern_execve.c,v 1.20 1994/03/26 12:24:27 davidg Exp $
+ *	$Id: kern_exec.c,v 1.2 1994/05/25 09:03:03 rgrimes Exp $
  */
 
 #include <sys/param.h>
@@ -418,12 +418,13 @@ exec_copyout_strings(iparams)
 	char *stringp, *destp;
 	int *stack_base;
 	int vect_table_size, string_table_size;
+	struct ps_strings *arginfo;
 
 	/*
 	 * Calculate string base and vector table pointers.
 	 */
-	destp = (caddr_t) ((caddr_t)USRSTACK -
-		roundup((ARG_MAX - iparams->stringspace), sizeof(char *)));
+	arginfo = PS_STRINGS;
+	destp =	(caddr_t)arginfo - roundup((ARG_MAX - iparams->stringspace), sizeof(char *));
 	/*
 	 * The '+ 2' is for the null pointers at the end of each of the
 	 *	arg and	env vector sets
@@ -440,6 +441,15 @@ exec_copyout_strings(iparams)
 	argc = iparams->argc;
 	envc = iparams->envc;
 
+	/*
+	 * Fill in "ps_strings" struct for ps, w, etc.
+	 */
+	arginfo->ps_argvstr = destp;
+	arginfo->ps_nargvstr = argc;
+
+	/*
+	 * Copy the arg strings and fill in vector table as we go.
+	 */
 	for (; argc > 0; --argc) {
 		*(vectp++) = destp;
 		while (*destp++ = *stringp++);
@@ -448,6 +458,12 @@ exec_copyout_strings(iparams)
 	/* a null vector table pointer seperates the argp's from the envp's */
 	*(vectp++) = NULL;
 
+	arginfo->ps_envstr = destp;
+	arginfo->ps_nenvstr = envc;
+
+	/*
+	 * Copy the env strings and fill in vector table as we go.
+	 */
 	for (; envc > 0; --envc) {
 		*(vectp++) = destp;
 		while (*destp++ = *stringp++);