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|
--- UTC
--- /dev/null
+++ gcc/testsuite/g++.dg/fstack-protector-strong.C
@@ -0,0 +1,35 @@
+/* Test that stack protection is done on chosen functions. */
+
+/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
+/* { dg-options "-O2 -fstack-protector-strong" } */
+
+class A
+{
+public:
+ A() {}
+ ~A() {}
+ void method();
+ int state;
+};
+
+/* Frame address exposed to A::method via "this". */
+int
+foo1 ()
+{
+ A a;
+ a.method ();
+ return a.state;
+}
+
+/* Possible destroying foo2's stack via &a. */
+int
+global_func (A& a);
+
+/* Frame address exposed to global_func. */
+int foo2 ()
+{
+ A a;
+ return global_func (a);
+}
+
+/* { dg-final { scan-assembler-times "stack_chk_fail" 2 } } */
--- /dev/null
+++ gcc/testsuite/gcc.dg/fstack-protector-strong.c
@@ -0,0 +1,135 @@
+/* Test that stack protection is done on chosen functions. */
+
+/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
+/* { dg-options "-O2 -fstack-protector-strong" } */
+
+#include<string.h>
+#include<stdlib.h>
+
+extern int g0;
+extern int* pg0;
+int
+goo (int *);
+int
+hoo (int);
+
+/* Function frame address escaped function call. */
+int
+foo1 ()
+{
+ int i;
+ return goo (&i);
+}
+
+struct ArrayStruct
+{
+ int a;
+ int array[10];
+};
+
+struct AA
+{
+ int b;
+ struct ArrayStruct as;
+};
+
+/* Function frame contains array. */
+int
+foo2 ()
+{
+ struct AA aa;
+ int i;
+ for (i = 0; i < 10; ++i)
+ {
+ aa.as.array[i] = i * (i-1) + i / 2;
+ }
+ return aa.as.array[5];
+}
+
+/* Address computation based on a function frame address. */
+int
+foo3 ()
+{
+ int a;
+ int *p;
+ p = &a + 5;
+ return goo (p);
+}
+
+/* Address cast based on a function frame address. */
+int
+foo4 ()
+{
+ int a;
+ return goo (g0 << 2 ? (int *)(3 * (long)(void *)(&a)) : 0);
+}
+
+/* Address cast based on a local array. */
+int
+foo5 ()
+{
+ short array[10];
+ return goo ((int *)(array + 5));
+}
+
+struct BB
+{
+ int one;
+ int two;
+ int three;
+};
+
+/* Address computaton based on a function frame address.*/
+int
+foo6 ()
+{
+ struct BB bb;
+ return goo (&bb.one + sizeof(int));
+}
+
+/* Function frame address escaped via global variable. */
+int
+foo7 ()
+{
+ int a;
+ pg0 = &a;
+ goo (pg0);
+ return *pg0;
+}
+
+/* Check that this covers -fstack-protector. */
+int
+foo8 ()
+{
+ char base[100];
+ memcpy ((void *)base, (const void *)pg0, 105);
+ return (int)(base[32]);
+}
+
+/* Check that this covers -fstack-protector. */
+int
+foo9 ()
+{
+ char* p = alloca (100);
+ return goo ((int *)(p + 50));
+}
+
+int
+global2 (struct BB* pbb);
+
+/* Address taken on struct. */
+int
+foo10 ()
+{
+ struct BB bb;
+ int i;
+ bb.one = global2 (&bb);
+ for (i = 0; i < 10; ++i)
+ {
+ bb.two = bb.one + bb.two;
+ bb.three = bb.one + bb.two + bb.three;
+ }
+ return bb.three;
+}
+
+/* { dg-final { scan-assembler-times "stack_chk_fail" 10 } } */
|
