Change the proc information returned from the kernel so that it

no longer contains kernel specific data structures, but rather
only scalar values and structures that are already part of the
kernel/user interface, specifically rusage and rtprio. It no
longer contains proc, session, pcred, ucred, procsig, vmspace,
pstats, mtx, sigiolst, klist, callout, pasleep, or mdproc. If
any of these changed in size, ps, w, fstat, gcore, systat, and
top would all stop working. The new structure has over 200 bytes
of unassigned space for future values to be added, yet is nearly
100 bytes smaller per entry than the structure that it replaced.

1 files changed, 4 insertions, 15 deletions

diff --git a/bin/ps/ps.h b/bin/ps/ps.h
index f8d244c..c7769eb 100644
--- a/bin/ps/ps.h
+++ b/bin/ps/ps.h
@@ -37,22 +37,11 @@
 #define	UNLIMITED	0	/* unlimited terminal width */
 enum type { CHAR, UCHAR, SHORT, USHORT, INT, UINT, LONG, ULONG, KPTR };
 
-struct usave {
-	struct	timeval u_start;
-	struct	rusage u_ru;
-	struct	rusage u_cru;
-	char	u_acflag;
-	char	u_valid;
-};
-
-#define KI_PROC(ki) (&(ki)->ki_p->kp_proc)
-#define KI_EPROC(ki) (&(ki)->ki_p->kp_eproc)
-
 typedef struct kinfo {
-	struct kinfo_proc *ki_p;	/* proc structure */
-	struct usave ki_u;	/* interesting parts of user */
+	struct kinfo_proc *ki_p;	/* kinfo_proc structure */
 	char *ki_args;		/* exec args */
 	char *ki_env;		/* environment */
+	int ki_valid;		/* 1 => uarea stuff valid */
 } KINFO;
 
 /* Variables. */
@@ -77,8 +66,8 @@ typedef struct var {
 	short	width;		/* printing width */
 	/*
 	 * The following (optional) elements are hooks for passing information
-	 * to the generic output routines: pvar, evar, uvar (those which print
-	 * simple elements from well known structures: proc, eproc, usave)
+	 * to the generic output routine pvar (which prints simple elements
+	 * from the well known kinfo_proc structure).
 	 */
 	int	off;		/* offset in structure */
 	enum	type type;	/* type of element */