mfleming

//
// Compile with:
//
//   g++ clear_user.cc -std=c++11 -isystem <path to googlebenchmark>/include \
//       -L<path to googlebenchmark>/build/src -lbenchmark -lpthread -o clear_user
//

#include <benchmark/benchmark.h>

#define BUF_SIZE (64*1024)

mfleming

/*
 * Copyright 2020 Matt Fleming
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

mfleming

void
do_int64_mul(unsigned int iterations, unsigned int N)
{
	int64_t r = (int64_t)N + 37420;

	r += (int64_t)(N + 6)<<32;
	
	while (iterations-- > 0)
		;
	use_int((int)r);

mfleming

#include <stdint.h>

#define TEN(a) a a a a a a a a a a

static volatile uint64_t  use_result_dummy;
void
use_int(int result) { use_result_dummy += result; }

void
do_int64_mul(unsigned int iterations, unsigned int N)

mfleming

diff -r 02bc14ed1569 mh.c
--- a/mh.c	Tue Dec 08 09:12:09 2015 -0800
+++ b/mh.c	Sun Jan 15 21:35:48 2017 +0000
@@ -1908,6 +1908,7 @@
   struct maildir *md;		/* list of messages in the mailbox */
   struct maildir **last, *p;
   int i;
+  int count = 0;
   HASH *fnames;			/* hash table for quickly looking up the base filename
 				   for a maildir message */

mfleming

struct grub_cpu_idt_descriptor
{
  grub_uint16_t limit;
  grub_uint32_t base;
} __attribute__ ((packed));

static struct grub_cpu_idt_descriptor no_idt __attribute__((aligned(16)));

/* The main routine.  */
void __attribute__ ((noreturn))

mfleming

diff --git a/scripts/runqemu b/scripts/runqemu
index b1d2d1a..aa8a8b9 100755
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -494,13 +494,13 @@ fi
 
 # Specify directory for BIOS, VGA BIOS and keymaps
 if [ ! -z "$CUSTOMBIOSDIR" ]; then
-    if [ -d "$OECORE_NATIVE_SYSROOT/$CUSTOMBIOSDIR" ]; then
-        echo "Assuming biosdir is $OECORE_NATIVE_SYSROOT/$CUSTOMBIOSDIR"