X-Git-Url: https://gapil.gnulinux.it/gitweb/?p=gapil.git;a=blobdiff_plain;f=process.tex;h=30913ae8d9df5c24e209c12e5c64b173a0a8e3c2;hp=2daf77d6a2c33ca7eeb52fc3b0707f60b90b21cd;hb=3da7aa8ec1541a808985971cf3814baa83f32f69;hpb=a48e8dfeb4b05b57eab2336c7d2e0aaf6b9bd572

diff --git a/process.tex b/process.tex
index 2daf77d..30913ae 100644
--- a/process.tex
+++ b/process.tex
@@ -234,7 +234,44 @@ normalmente un programma 
 
 \begin{figure}[htb]
   \centering
-  \includegraphics[width=9cm]{img/proc_beginend}
+%  \includegraphics[width=9cm]{img/proc_beginend}
+  \begin{tikzpicture}[>=stealth]
+    \filldraw[fill=black!35] (-0.3,0) rectangle (12,1);
+    \draw(5.5,0.5) node {\large{kernel}};
+
+    \filldraw[fill=black!15] (1.5,2) rectangle (4,3);
+    \draw (2.75,2.5) node {\texttt{ld-linux.so}};
+    \draw [->] (2.75,1) -- (2.75,2);
+    \draw (2.75,1.5) node [anchor=west]{\texttt{exec}};
+
+    \filldraw[fill=black!15,rounded corners] (1.5,4) rectangle (4,5);
+    \draw (2.75,4.5) node {\texttt{main}};
+
+    \draw [<->, dashed] (2.75,3) -- (2.75,4);
+    \draw [->] (1.5,4.5) -- (0.3,4.5) -- (0.3,1);
+    \draw (0.9,4.5) node [anchor=south] {\texttt{\_exit}};
+
+    \filldraw[fill=black!15,rounded corners] (1.5,6) rectangle (4,7);
+    \draw (2.75,6.5) node {\texttt{funzione}};
+
+    \draw [<->, dashed] (2.75,5) -- (2.75,6);
+    \draw [->] (1.5,6.5) -- (0.05,6.5) -- (0.05,1);
+    \draw (0.9,6.5) node [anchor=south] {\texttt{\_exit}};
+
+    \draw (6.75,4.5) node (exit) [rectangle,fill=black!15,minimum width=2.5cm,minimum height=1cm,rounded corners, draw]{\texttt{exit}};
+
+    \draw[->] (4,6.5) -- node[anchor=south west]{\texttt{exit}} (exit);
+    \draw[->] (4,4.5) -- node[anchor=south]{\texttt{exit}} (exit);
+    \draw[->] (exit) -- node[anchor=east]{\texttt{\_exit}}(6.75,1);
+
+    \draw (10,4.5) node (exithandler1) [rectangle,fill=black!15,rounded corners, draw]{exit handler};
+    \draw (10,5.5) node (exithandler2) [rectangle,fill=black!15,rounded corners, draw]{exit handler};
+    \draw (10,3.5) node (stream) [rectangle,fill=black!15,rounded corners, draw]{chiusura stream};
+
+    \draw[<->, dashed] (exithandler1) -- (exit);
+    \draw[<->, dashed] (exithandler2) -- (exit);
+    \draw[<->, dashed] (stream) -- (exit);
+  \end{tikzpicture}
   \caption{Schema dell'avvio e della conclusione di un programma.}
   \label{fig:proc_prog_start_stop}
 \end{figure}
@@ -420,7 +457,27 @@ seguenti segmenti:
 
 \begin{figure}[htb]
   \centering
-  \includegraphics[height=12cm]{img/memory_layout}
+%  \includegraphics[height=12cm]{img/memory_layout}
+  \begin{tikzpicture}
+  \draw (0,0) rectangle (4,1);
+  \draw (2,0.5) node {text};
+  \draw (0,1) rectangle (4,2.5);
+  \draw (2,1.75) node {dati inizializzati};
+  \draw (0,2.5) rectangle (4,5);
+  \draw (2,3.75) node {dati non inizializzati};
+  \draw (0,5) rectangle (4,9);
+  \draw[dashed] (0,6) -- (4,6);
+  \draw[dashed] (0,8) -- (4,8);
+  \draw (2,5.5) node {heap};
+  \draw (2,8.5) node {stack};
+  \draw [->] (2,6) -- (2,6.5);
+  \draw [->] (2,8) -- (2,7.5);
+  \draw (0,9) rectangle (4,10);
+  \draw (2,9.5) node {environment};
+  \draw (4,0) node [anchor=west] {\texttt{0x08000000}};
+  \draw (4,5) node [anchor=west] {\texttt{0x08xxxxxx}};
+  \draw (4,9) node [anchor=west] {\texttt{0xC0000000}};
+  \end{tikzpicture} 
   \caption{Disposizione tipica dei segmenti di memoria di un processo.}
   \label{fig:proc_mem_layout}
 \end{figure}