jstaursky

Simplest java maven hello-world style project.

create the directory structure

mkdir -p tutorial/src/main/java/hello then touch tutorial/src/main/java/hello/Main.java

put in the java file tutorial/src/main/java/hello/Main.java

package hello;
public class Main {

Need to create ghidra.jar and place into the lib directory.
run below script to create the directory structure

put the following contents in the src/main/java/MyProject.java file

import ghidra.app.script.GhidraScript;

  public class MyProject extends GhidraScript {

  @Override
  public void run() throws Exception {

First make sure you install the dependencies

cmake
sudo apt install llvm-11 libclang-11-dev llvm-11 llvm-11-dev llvm-11-runtime llvm-11-tools

(may or may not be missing one, but they are all in the repositories, no need to manually install or build from src)

git clone https://github.com/Andersbakken/rtags
git submodule init
git submodule update

and finally,

May only need sudo apt-get install libc6-dev-i386 gcc-multilib g++-multilib but if there is a version mismatch between this gcc and the x64 gcc then there will be issues. So check update-alternatives --config gcc and use that info to find gcc-<version>-multilib and then install it.

credit to https://askubuntu.com/questions/453681/gcc-wont-link-with-m32

C lang program w/out glibc

SYSV ABI requirement

See http://www.sco.com/developers/devspecs/abi386-4.pdf page 54 for diagram. This tells us 1 implementation of the stack layout of a SYSV compliant system (At the moment the only one I am aware of). However the spec. mentions this to only be a potiential implementation that is complient. To quote,

Argument strings, environment strings, and the auxiliary information appear in no specific order within the information block; the system makes no guarantees about their arrangement

	(use-package rtags
	;; Note that if you recompile and create new compile_commands.json
	;; you will need to run "rc -J ." for rtags to reflect the changes.
	;; REMEMBER RTAGS DOES NOT WORK FOR PROJECTS INSIDE /tmp
	:init
	(add-hook 'c++-mode-hook #'rtags-start-process-unless-running)
	(add-hook 'c-mode-hook #'rtags-start-process-unless-running)
	(add-hook 'rtags-jump-hook 'evil-set-jump)

	(setq rtags-completions-enabled t)

	// Note: sqrt -- approximate method for calculating the square root of a number.
	double sqrt (double num)
	{
	double start = 0.0;
	double epsilon = 0.1; // Accuracy granularity.

	// Find nearest perfect square.
	while ((num - start * start) > 0)
	start += 1;

	From 60532f6087d0f3cc20197da1790d2f5cec0ecbee Mon Sep 17 00:00:00 2001
	From: Jesse Nazario <address@hidden>
	Date: Sat, 31 Aug 2019 15:35:34 -0300
	Subject: [PATCH] Center lines vertically with line-spacing-vertical-center

	When using line-spacing, the new variable line-spacing-vertical-center
	can be set to non-nil to center the line content vertically.
	---
	src/buffer.c \| 13 +++++++++++++
	src/buffer.h \| 4 ++++

	// Credit: https://stackoverflow.com/questions/189725/what-is-a-trampoline-function

	#include <stdio.h>

	typedef struct _trampoline_data {
	void(callback)(struct _trampoline_data);
	void* parameters;
	} trampoline_data;

	void trampoline(trampoline_data* data) {

	/*
	* tl;dr: C program initialization, written in C!
	*
	* This applies to an executable dynamically linked with glibc.
	* It is current as of glibc 2.26.
	*
	* A LOT of information has been omitted for simplicity; hell,
	* some of it might be flat-out wrong (I wrote this after about
	* 3 hours of experimenting with GDB). If you want to know EXACTLY
	* what goes on under the covers, I advise you to read the