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/* A concatenation of varinfo1 .. varinfo4 in a shared object. This
is to check for correct functionality in a non-zero-biased ELF
executable. */
/* Relevant compile flags are:
-Wall -g -I$prefix/include/valgrind
eg -Wall -g -I`pwd`/Inst/include/valgrind
*/
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include "memcheck/memcheck.h"
/* Cause memcheck to complain about the address "a" and so to print
its best guess as to what "a" actually is. a must be
addressible. */
__attribute__((noinline))
void croak ( void* aV )
{
char* a = (char*)aV;
volatile char* undefp = malloc(1);
char saved = *a;
assert(undefp);
*a = *undefp;
(void) VALGRIND_CHECK_MEM_IS_DEFINED(a, 1);
*a = saved;
free((void*)undefp);
}
#include <stdio.h>
/* ------------ varinfo1 ------------ */
int global_u1;
int global_i1 = 17;
char global_u2[10];
char global_i2[10] = { 1,2,3,4,5,6,7,8,9,10 };
__attribute__((noinline))
static int varinfo1_main ( void )
{
int local;
char* onheap = malloc(3);
assert(onheap);
croak(onheap+1);
free(onheap);
croak( &global_u1 );
croak( &global_i1 );
croak( &global_u2[3] );
croak( &global_i2[7] );
croak( &local );
return 0;
}
/* ------------ varinfo2 ------------ */
__attribute__((noinline))
static void foo2 ( void )
{
int var;
var = 1;
{ char var[10];
var[6] = 4;
croak( &var[7] );
{ struct { double foo; float bar; } var;
croak ( 2 + (char*)&var.bar );
}
}
croak( 1 + (char*)&var );
}
__attribute__((noinline))
static int varinfo2_main ( void )
{
foo2();
return 0;
}
/* ------------ varinfo3 ------------ */
static char static_global_def[10] = {0,0,0,0,0, 0,0,0,0,0};
char nonstatic_global_def[10] = {0,0,0,0,0, 0,0,0,0,0};
static char static_global_undef[10];
char nonstatic_global_undef[10];
__attribute__((noinline))
static void bar3 ( char* p1, char* p2, char* p3, char* p4 )
{
croak(p1);
croak(p2);
croak(p3);
croak(p4);
}
__attribute__((noinline))
static void foo3 ( void )
{
static char static_local_def[10] = {0,0,0,0,0, 0,0,0,0,0};
char nonstatic_local_def[10] = {0,0,0,0,0, 0,0,0,0,0};
static char static_local_undef[10];
char nonstatic_local_undef[10];
croak ( 1 + (char*)&static_global_def );
croak ( 2 + (char*)&nonstatic_global_def );
croak ( 3 + (char*)&static_global_undef );
croak ( 4 + (char*)&nonstatic_global_undef );
bar3( 5 + (char*)&static_local_def,
6 + (char*)&nonstatic_local_def,
7 + (char*)&static_local_undef,
8 + (char*)&nonstatic_local_undef );
}
__attribute__((noinline))
static int varinfo3_main ( void )
{
foo3();
return 0;
}
/* ------------ varinfo4 ------------ */
#include <string.h>
typedef struct { short c1; char* c2[3]; } XX;
typedef
struct _str { int bing; int bong; XX xyzzy[77]; }
Str;
__attribute__((noinline))
static int blah4 ( int x, int y )
{
Str a[10];
memset(a, 0, sizeof(a));
croak(1 + (char*)(&a[3].xyzzy[x*y].c1));
croak( (char*)(&a[5].bong) );
croak( 1 + (char*)(&a[3].xyzzy[x*y].c2[2]) );
memset(a, 0, sizeof(a));
return a[3].xyzzy[x*y].c1;
}
__attribute__((noinline))
static int varinfo4_main ( void )
{
fprintf(stderr, "answer is %d\n", blah4(3,7) );
return 0;
}
static void inlinetest(void);
/* ------------ varinfo5 ------------ */
void varinfo5_main ( void )
{
varinfo1_main();
varinfo2_main();
varinfo3_main();
varinfo4_main();
inlinetest();
}
#define INLINE inline __attribute__((always_inline))
INLINE void fun_c(int argc) {
croak(&argc);
}
INLINE void fun_b(int argb) {
fun_c(argb);
}
INLINE void fun_a(int *arga) {
fun_b(*arga);
}
void inlinetest(void)
{
int i = 1;
fun_a(&i);
}
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