[src/trunk]: src/bin/ps Don't rely on the USPACE kernel define as a fallback ...

[simonb <simonb%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1b286fa38f23
branches:  trunk
changeset: 1013332:1b286fa38f23
user:      simonb <simonb%NetBSD.org@localhost>
date:      Wed Aug 26 10:54:12 2020 +0000

description:
Don't rely on the USPACE kernel define as a fallback if the vm.uspace
sysctl fails.  We've got bigger problems if the sysctl fail anyway.

diffstat:

 bin/ps/nlist.c |  20 +++++++++-----------
 1 files changed, 9 insertions(+), 11 deletions(-)

diffs (77 lines):

diff -r 8bc6c39d96d8 -r 1b286fa38f23 bin/ps/nlist.c
--- a/bin/ps/nlist.c    Wed Aug 26 10:51:45 2020 +0000
+++ b/bin/ps/nlist.c    Wed Aug 26 10:54:12 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nlist.c,v 1.27 2016/11/28 08:19:23 rin Exp $   */
+/*     $NetBSD: nlist.c,v 1.28 2020/08/26 10:54:12 simonb Exp $        */
 
 /*
  * Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -63,7 +63,7 @@
 #if 0
 static char sccsid[] = "@(#)nlist.c    8.4 (Berkeley) 4/2/94";
 #else
-__RCSID("$NetBSD: nlist.c,v 1.27 2016/11/28 08:19:23 rin Exp $");
+__RCSID("$NetBSD: nlist.c,v 1.28 2020/08/26 10:54:12 simonb Exp $");
 #endif
 #endif /* not lint */
 
@@ -113,9 +113,7 @@
 #ifndef MAXSLP
 #define MAXSLP         20
 #endif
-#ifndef USPACE
-#define USPACE         (getpagesize())
-#endif
+#define DEF_USPACE     (getpagesize())
 
 #define        kread(x, v) \
        kvm_read(kd, psnl[x].n_value, (char *)&v, sizeof v) != sizeof(v)
@@ -177,7 +175,7 @@
        mib[1] = KERN_FSCALE;
        size = sizeof(fscale);
        if (sysctl(mib, 2, &fscale, &size, NULL, 0)) {
-               warn("fscale");
+               warn("sysctl kern.fscale");
                eval = 1;
                fscale = FSCALE;
        }
@@ -186,7 +184,7 @@
        mib[1] = HW_PHYSMEM64;
        size = sizeof(memsize);
        if (sysctl(mib, 2, &memsize, &size, NULL, 0)) {
-               warn("avail_start");
+               warn("sysctl hw.avail_start");
                eval = 1;
                mempages = MEMPAGES;
        } else
@@ -196,7 +194,7 @@
        mib[1] = KERN_CCPU;
        size = sizeof(xccpu);
        if (sysctl(mib, 2, &xccpu, &size, NULL, 0)) {
-               warn("ccpu");
+               warn("sysctl kern.ccpu");
                eval = 1;
                log_ccpu = LOG_CCPU;
        } else
@@ -206,7 +204,7 @@
        mib[1] = VM_MAXSLP;
        size = sizeof(maxslp);
        if (sysctl(mib, 2, &maxslp, &size, NULL, 0)) {
-               warn("maxslp");
+               warn("sysctl vm.maxslp");
                eval = 1;
                maxslp = MAXSLP;
        }
@@ -215,9 +213,9 @@
        mib[1] = VM_USPACE;
        size = sizeof(uspace);
        if (sysctl(mib, 2, &uspace, &size, NULL, 0)) {
-               warn("uspace");
+               warn("sysctl vm.uspace");
                eval = 1;
-               uspace = USPACE;
+               uspace = DEF_USPACE;
        }
 }