larytet

// ==UserScript==
// @name           Yad2 Ad update
// @namespace      yad2
// @description    Simulates click on "kaftor3"
// @include        http://my.yad2.co.il/MyYad2/MyOrder/Yad2.php
// ==/UserScript==
// Use chromium-browser --enable-easy-off-store-extension-install to install offline 
// in Chrome

/*

larytet

/**
 * Based on https://www.fsl.cs.sunysb.edu/~vass/linux-aio.txt
 * Compile gcc -Wall test_aio.c -o test_aio
 * Run rm -rf /tmp/testfile ;./iotest 
 */

#define _GNU_SOURCE		/* syscall() is not POSIX */

#include <stdio.h>		/* for perror() */
#include <unistd.h>		/* for syscall() */

larytet

static char* get_exe_name(int pid, char *buffer, int buffer_size)
{
    char *result = NULL;

	struct mm_struct* mm = current->mm;
	if (mm)
	{
		int lock_result = down_read_trylock(&mm->mmap_sem);
		if ((lock_result) && (mm->exe_file)) 
		{

larytet

@define cc1 %( "/usr/libexec/gcc/x86_64-redhat-linux/6.3.1/cc1" %)
global insns
probe perf.hw.instructions.process(@cc1).counter("foo") {}
probe process(@cc1).function("*").return {
   insns[execname(),tid()] = @perf("foo") // implicit max()
}

larytet

static void get_inode(u64 fd, struct file **p_file, struct inode **p_inode)
{
	struct file *file = NULL;
	struct inode *f_inode = NULL;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(3,7,0))
	file = fget_raw(fd);   // do not forget to fput(file)
#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) && (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,255))
	{
		struct files_struct *files = current->files;
		if (files)   // This is always the case, but I am not taking chances

larytet

GIT_COMMIT_FILE=git_commit_filename.h

$(GIT_COMMIT_FILE): phony
	$(eval GIT_COMMIT_SHA=$(shell git describe --abbrev=6 --always 2>/dev/null || echo 'Error'))
	@echo SHA=$(GIT_COMMIT_SHA)
	echo -n "static const char *GIT_COMMIT_SHA = \"$(GIT_COMMIT_SHA)\";" > $(GIT_COMMIT_FILE)

larytet

/**
 *   Lockfree is a set of lockfree containers for Linux and Linux kernel
 *   Copyright (C) <2017>  Arkady Miasnikov
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,

larytet

#!/bin/bash

function echo_loop()
{
  file=echo_file_`date +%s%N`
  echo $file
  echo > $file
  counter=1
  end=$((SECONDS+10))
  while [ $SECONDS -lt $end ]; do 

larytet

stap -D MAXSKIPPED=0 -D MAXTRYLOCK=1000000 -D TRYLOCKDELAY=1 -g   -e 'global ar%; function w_ar() {ar[tid()]=tid();} %{long long counter;u8 shm[256];static void* w_shm(void);static void* w_shm() {memset(shm, 0, sizeof(shm));return shm;} %} probe syscall.close{w_ar();%{ {counter++;w_shm();} %}} probe syscall.close.return {w_ar();%{ {counter++;w_shm();} %}} probe syscall.open{w_ar();%{ {counter++;w_shm();} %}} probe syscall.open.return{w_ar();%{ {counter++;w_shm();} %}} probe syscall.dup2.return{w_ar();%{ {counter++;w_shm();} %}} probe syscall.dup2.return{w_ar();%{ {counter++;w_shm();} %}} probe syscall.read.return{w_ar();%{ {counter++;w_shm();} %}} probe syscall.read{w_ar();%{ {counter++;w_shm();} %}} probe end {  %{ {printk("\n%lli\n", counter);} %}}'


stap -D MAXSKIPPED=0 -D MAXTRYLOCK=1000000 -D TRYLOCKDELAY=1 -g   -e '%{long long counter;u8 shm[256];static void* w_shm(void);static void* w_shm() {memset(shm, 0, sizeof(shm));return shm;} %} probe syscall.close{%{ {counter++;w_shm();} %}} probe syscall.close

larytet

probe kprocess.exec
{
	%{HIT_MAP_INC(HIT_MAP_KPROCESS_EXEC)%}
 	tid = tid()
 	if (stringat(filename,0) == 0x22) // filename starts with a quotation mark
 	{
		MAP_SYSCALL_EXEC_NAME[tid] = filename 
		MAP_SYSCALL_EXEC_ARGV[tid] = args
 	}
 	else  // failed to recog the filename, trigger do_execve