From 021b32acd3cec8e255dd47681939797ec64b8206 Mon Sep 17 00:00:00 2001
From: John Ogness <john.ogness@linutronix.de>
Date: Tue, 20 Feb 2018 15:03:14 +0100
Subject: tools: rename 'rtex' tool to 'pgflt'

The rtex tool only demonstrates prefaultingn to avoid runtime
page faults. It makes more sense to call it pgflt.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
---
 schulung_tools/rtex/rt.c | 72 ------------------------------------------------
 1 file changed, 72 deletions(-)
 delete mode 100644 schulung_tools/rtex/rt.c

(limited to 'schulung_tools/rtex/rt.c')

diff --git a/schulung_tools/rtex/rt.c b/schulung_tools/rtex/rt.c
deleted file mode 100644
index 86a6506..0000000
--- a/schulung_tools/rtex/rt.c
+++ /dev/null
@@ -1,72 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <malloc.h>
-#include <sys/mman.h>
-
-extern void timestamp(const char *msg, int val);
-extern void testfunc_malloc(void);
-extern void testfunc_deepstack(void);
-
-void prefault_stack(void)
-{
-#define STACK_SIZE (7680 * 1024) /* 7.5 MiB */
-	char buf[STACK_SIZE];
-	long pagesize;
-	int i;
-
-	pagesize = sysconf(_SC_PAGESIZE);
-
-	for (i = 0; i < STACK_SIZE; i += pagesize)
-		buf[i] = 0;
-}
-
-void prefault_heap(void)
-{
-#define HEAP_SIZE (20 * 1024 * 1024) /* 20 MiB */
-	long pagesize;
-	char *buf;
-	int i;
-
-	pagesize = sysconf(_SC_PAGESIZE);
-
-	buf = malloc(HEAP_SIZE);
-	if (!buf) {
-		fprintf(stderr, "MALLOC FAILED: %s:%d\n", __FILE__, __LINE__);
-		return;
-	}
-
-	for (i = 0; i < HEAP_SIZE; i += pagesize)
-		buf[i] = 0;
-
-	free(buf);
-}
-
-void setup_rt(unsigned int opts)
-{
-	if (opts & 0x1) {
-		if (mallopt(M_TRIM_THRESHOLD, -1) == 0) {
-			fprintf(stderr, "MALLOPT FAILED: %s:%d\n",
-				__FILE__, __LINE__);
-		}
-
-		if (mallopt(M_MMAP_MAX, 0) == 0) {
-			fprintf(stderr, "MALLOPT FAILED: %s:%d\n",
-				__FILE__, __LINE__);
-		}
-	}
-
-	if (opts & 0x2) {
-		if (mlockall(MCL_CURRENT | MCL_FUTURE) == -1) {
-			fprintf(stderr, "MLOCKALL FAILED: %s:%d\n",
-				__FILE__, __LINE__);
-		}
-	}
-
-	if (opts & 0x4)
-		prefault_stack();
-
-	if (opts & 0x8)
-		prefault_heap();
-}
-
-- 
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