Add TD8

content/secu_logicielle/td8-gdb/files/Makefile

@@ -0,0 +1,27 @@
+CFLAGS=-g -Wall -Wextra -Wno-unused-parameter -Wno-unused-variable -Wno-array-bounds -Wno-stringop-overflow -m32 -no-pie -fno-pie
+LDFLAGS=-m32
+LDLIBS=-lpthread
+C=$(wildcard *.c)
+O=$(C:.c=)
+O2=$(C:.c=.O2)
+
+pframe:
+	curl -o pframe.tgz  https://dept-info.labri.fr/~thibault/SecuLog/pframe.tgz && \
+		tar -xf pframe.tgz &&\
+		rm -rf pframe.tgz
+
+.gdbinit:
+
+configure: pframe .gdbinit
+	$(shell echo "python import pframe" > .gdbinit) 
+%.O2: %.c
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -O2 $^ $(LDLIBS) -o $@
+
+all: $O $(O2)
+
+PHONY: gdb_%
+gdb_%: $(subst gdb_,,%)
+	PYTHONPATH=${PWD}/pframe${PYTHONPATH:+:${PYTHONPATH}} gdb $<
+
+clean:
+	rm -f $O $(O2)

content/secu_logicielle/td8-gdb/files/modif-rev.c

@@ -0,0 +1,21 @@
+#include <stdio.h>
+
+void f(int *x) {
+	int i;
+	for (i = 0; i < 10000; i++)
+		(*x)++;
+	(*x) *= 2;
+}
+
+void g(int *y) {
+	return f(y);
+}
+
+int main(void) {
+	int b = 0;
+	int a = 0;
+	int c = 0;
+	g(&a);
+	printf("%d\n", a);
+	return 0;
+}

content/secu_logicielle/td8-gdb/files/modif.c

@@ -0,0 +1,18 @@
+#include <stdio.h>
+
+void f(int *x) {
+	(*x)++;
+}
+
+void g(int *y) {
+	return f(y);
+}
+
+int main(void) {
+	int b = 1;
+	int a = 2;
+	int c = 3;
+	g(&a);
+	printf("%d\n", a);
+	return 0;
+}

content/secu_logicielle/td8-gdb/files/modif2.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <string.h>
+
+void f(char *x, int n) {
+	memset(x, '\0', n);
+}
+
+void g(char *y, int n) {
+	return f(y, n);
+}
+
+int main(void) {
+	int b = 1234567890;
+	int c = 1234567890;
+	char a[] = "Hello, you!";
+	g(a, sizeof(a) + 1);
+	printf("%p:%d %p:%d %p\n", &b, b, &c, c, &a);
+	return 0;
+}

content/secu_logicielle/td8-gdb/files/modif3.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+void f(char *x, int n) {
+	memset(x, '\0', n);
+}
+
+void g(char *y, int n) {
+	return f(y, n);
+}
+
+int main(void) {
+	char *a = strdup("aaa");
+	g(a, sizeof(a)+1);
+	printf("%p\n", &a);
+	free(a);
+	return 0;
+}

content/secu_logicielle/td8-gdb/files/optim.c

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+#include <stdio.h>
+
+int __attribute__((noinline)) f(int x) {
+	return x+1;
+}
+
+int __attribute__((noinline)) g(int y) {
+	int z = y+1;
+	int a = f(z);
+	printf("%d\n", a);
+	return a;
+}
+
+int main(void) {
+	printf("%d\n", g(1));
+	return 0;
+}

content/secu_logicielle/td8-gdb/files/stack.c

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+#include <stdio.h>
+
+int f(int *x) {
+	return *x+1;
+}
+
+int g(int y) {
+	int z = y+1;
+	return f(&z);
+}
+
+int main(void) {
+	printf("%d\n", g(1));
+	return 0;
+}