mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-14 01:00:07 +00:00
364 lines
8.8 KiB
C
364 lines
8.8 KiB
C
/* Global object symbol access tests with a static executable (BZ #15022).
|
|
Copyright (C) 2013-2014 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <dlfcn.h>
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
|
|
#define MAGIC0 0
|
|
#define MAGIC1 0x5500ffaa
|
|
#define MAGIC2 0xaaff0055
|
|
#define MAGIC3 0xff55aa00
|
|
|
|
/* Check the ability to access the global symbol object and then
|
|
global-scope symbol access consistency via different mappings
|
|
requested from a static executable. */
|
|
static int
|
|
do_test (void)
|
|
{
|
|
unsigned int (*initial_getfoo) (void);
|
|
void (*initial_setfoo) (unsigned int);
|
|
unsigned int (*global_getfoo) (void);
|
|
void (*global_setfoo) (unsigned int);
|
|
unsigned int (*local_getfoo) (void);
|
|
void (*local_setfoo) (unsigned int);
|
|
unsigned int *initial_foop;
|
|
unsigned int *global_foop;
|
|
unsigned int *local_foop;
|
|
void *initial_handle;
|
|
void *global_handle;
|
|
void *local_handle;
|
|
unsigned int foo;
|
|
|
|
/* Try to map self. */
|
|
initial_handle = dlopen (NULL, RTLD_LAZY | RTLD_GLOBAL);
|
|
if (initial_handle == NULL)
|
|
{
|
|
printf ("dlopen [initial] (NULL): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
/* Make sure symbol lookups fail gracefully. */
|
|
initial_foop = dlsym (initial_handle, "foo");
|
|
if (initial_foop != NULL)
|
|
{
|
|
printf ("dlsym [initial] (foo): got %p, expected NULL\n", initial_foop);
|
|
return 1;
|
|
}
|
|
|
|
initial_getfoo = dlsym (initial_handle, "getfoo");
|
|
if (initial_getfoo != NULL)
|
|
{
|
|
printf ("dlsym [initial] (getfoo): got %p, expected NULL\n",
|
|
initial_getfoo);
|
|
return 1;
|
|
}
|
|
|
|
initial_setfoo = dlsym (initial_handle, "setfoo");
|
|
if (initial_setfoo != NULL)
|
|
{
|
|
printf ("dlsym [initial] (setfoo): got %p, expected NULL\n",
|
|
initial_setfoo);
|
|
return 1;
|
|
}
|
|
|
|
/* Try to map a module into the global scope. */
|
|
global_handle = dlopen ("modstatic3.so", RTLD_LAZY | RTLD_GLOBAL);
|
|
if (global_handle == NULL)
|
|
{
|
|
printf ("dlopen [global] (modstatic3.so): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
/* Get at its symbols. */
|
|
global_foop = dlsym (global_handle, "foo");
|
|
if (global_foop == NULL)
|
|
{
|
|
printf ("dlsym [global] (foo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
global_getfoo = dlsym (global_handle, "getfoo");
|
|
if (global_getfoo == NULL)
|
|
{
|
|
printf ("dlsym [global] (getfoo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
global_setfoo = dlsym (global_handle, "setfoo");
|
|
if (global_setfoo == NULL)
|
|
{
|
|
printf ("dlsym [global] (setfoo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
/* Try to map self again now. */
|
|
local_handle = dlopen (NULL, RTLD_LAZY | RTLD_LOCAL);
|
|
if (local_handle == NULL)
|
|
{
|
|
printf ("dlopen [local] (NULL): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
/* Make sure we can get at the previously loaded module's symbols
|
|
via this handle too. */
|
|
local_foop = dlsym (local_handle, "foo");
|
|
if (local_foop == NULL)
|
|
{
|
|
printf ("dlsym [local] (foo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
local_getfoo = dlsym (local_handle, "getfoo");
|
|
if (local_getfoo == NULL)
|
|
{
|
|
printf ("dlsym [local] (getfoo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
local_setfoo = dlsym (local_handle, "setfoo");
|
|
if (local_setfoo == NULL)
|
|
{
|
|
printf ("dlsym [local] (setfoo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
/* Make sure we can get at the previously loaded module's symbols
|
|
via a handle that was obtained before the module was loaded too. */
|
|
initial_foop = dlsym (initial_handle, "foo");
|
|
if (initial_foop == NULL)
|
|
{
|
|
printf ("dlsym [initial] (foo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
initial_getfoo = dlsym (initial_handle, "getfoo");
|
|
if (initial_getfoo == NULL)
|
|
{
|
|
printf ("dlsym [initial] (getfoo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
initial_setfoo = dlsym (initial_handle, "setfoo");
|
|
if (initial_setfoo == NULL)
|
|
{
|
|
printf ("dlsym [initial] (setfoo): %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
/* Make sure the view of the initial state is consistent. */
|
|
foo = *initial_foop;
|
|
if (foo != MAGIC0)
|
|
{
|
|
printf ("*foop [initial]: got %#x, expected %#x\n", foo, MAGIC0);
|
|
return 1;
|
|
}
|
|
|
|
foo = *global_foop;
|
|
if (foo != MAGIC0)
|
|
{
|
|
printf ("*foop [global]: got %#x, expected %#x\n", foo, MAGIC0);
|
|
return 1;
|
|
}
|
|
|
|
foo = *local_foop;
|
|
if (foo != MAGIC0)
|
|
{
|
|
printf ("*foop [local]: got %#x, expected %#x\n", foo, MAGIC0);
|
|
return 1;
|
|
}
|
|
|
|
foo = initial_getfoo ();
|
|
if (foo != MAGIC0)
|
|
{
|
|
printf ("getfoo [initial]: got %#x, expected %#x\n", foo, MAGIC0);
|
|
return 1;
|
|
}
|
|
|
|
foo = global_getfoo ();
|
|
if (foo != MAGIC0)
|
|
{
|
|
printf ("getfoo [global]: got %#x, expected %#x\n", foo, MAGIC0);
|
|
return 1;
|
|
}
|
|
|
|
foo = local_getfoo ();
|
|
if (foo != MAGIC0)
|
|
{
|
|
printf ("getfoo [local]: got %#x, expected %#x\n", foo, MAGIC0);
|
|
return 1;
|
|
}
|
|
|
|
/* Likewise with a change to its state made through the first handle. */
|
|
initial_setfoo (MAGIC1);
|
|
|
|
foo = *initial_foop;
|
|
if (foo != MAGIC1)
|
|
{
|
|
printf ("*foop [initial]: got %#x, expected %#x\n", foo, MAGIC1);
|
|
return 1;
|
|
}
|
|
|
|
foo = *global_foop;
|
|
if (foo != MAGIC1)
|
|
{
|
|
printf ("*foop [global]: got %#x, expected %#x\n", foo, MAGIC1);
|
|
return 1;
|
|
}
|
|
|
|
foo = *local_foop;
|
|
if (foo != MAGIC1)
|
|
{
|
|
printf ("*foop [local]: got %#x, expected %#x\n", foo, MAGIC1);
|
|
return 1;
|
|
}
|
|
|
|
foo = initial_getfoo ();
|
|
if (foo != MAGIC1)
|
|
{
|
|
printf ("getfoo [initial]: got %#x, expected %#x\n", foo, MAGIC1);
|
|
return 1;
|
|
}
|
|
|
|
foo = global_getfoo ();
|
|
if (foo != MAGIC1)
|
|
{
|
|
printf ("getfoo [global]: got %#x, expected %#x\n", foo, MAGIC1);
|
|
return 1;
|
|
}
|
|
|
|
foo = local_getfoo ();
|
|
if (foo != MAGIC1)
|
|
{
|
|
printf ("getfoo [local]: got %#x, expected %#x\n", foo, MAGIC1);
|
|
return 1;
|
|
}
|
|
|
|
/* Likewise with a change to its state made through the second handle. */
|
|
global_setfoo (MAGIC2);
|
|
|
|
foo = *initial_foop;
|
|
if (foo != MAGIC2)
|
|
{
|
|
printf ("*foop [initial]: got %#x, expected %#x\n", foo, MAGIC2);
|
|
return 1;
|
|
}
|
|
|
|
foo = *global_foop;
|
|
if (foo != MAGIC2)
|
|
{
|
|
printf ("*foop [global]: got %#x, expected %#x\n", foo, MAGIC2);
|
|
return 1;
|
|
}
|
|
|
|
foo = *local_foop;
|
|
if (foo != MAGIC2)
|
|
{
|
|
printf ("*foop [local]: got %#x, expected %#x\n", foo, MAGIC2);
|
|
return 1;
|
|
}
|
|
|
|
foo = initial_getfoo ();
|
|
if (foo != MAGIC2)
|
|
{
|
|
printf ("getfoo [initial]: got %#x, expected %#x\n", foo, MAGIC2);
|
|
return 1;
|
|
}
|
|
|
|
foo = global_getfoo ();
|
|
if (foo != MAGIC2)
|
|
{
|
|
printf ("getfoo [global]: got %#x, expected %#x\n", foo, MAGIC2);
|
|
return 1;
|
|
}
|
|
|
|
foo = local_getfoo ();
|
|
if (foo != MAGIC2)
|
|
{
|
|
printf ("getfoo [local]: got %#x, expected %#x\n", foo, MAGIC2);
|
|
return 1;
|
|
}
|
|
|
|
/* Likewise with a change to its state made through the third handle. */
|
|
local_setfoo (MAGIC3);
|
|
|
|
foo = *initial_foop;
|
|
if (foo != MAGIC3)
|
|
{
|
|
printf ("*foop [initial]: got %#x, expected %#x\n", foo, MAGIC3);
|
|
return 1;
|
|
}
|
|
|
|
foo = *global_foop;
|
|
if (foo != MAGIC3)
|
|
{
|
|
printf ("*foop [global]: got %#x, expected %#x\n", foo, MAGIC3);
|
|
return 1;
|
|
}
|
|
|
|
foo = *local_foop;
|
|
if (foo != MAGIC3)
|
|
{
|
|
printf ("*foop [local]: got %#x, expected %#x\n", foo, MAGIC3);
|
|
return 1;
|
|
}
|
|
|
|
foo = initial_getfoo ();
|
|
if (foo != MAGIC3)
|
|
{
|
|
printf ("getfoo [initial]: got %#x, expected %#x\n", foo, MAGIC3);
|
|
return 1;
|
|
}
|
|
|
|
foo = global_getfoo ();
|
|
if (foo != MAGIC3)
|
|
{
|
|
printf ("getfoo [global]: got %#x, expected %#x\n", foo, MAGIC3);
|
|
return 1;
|
|
}
|
|
|
|
foo = local_getfoo ();
|
|
if (foo != MAGIC3)
|
|
{
|
|
printf ("getfoo [local]: got %#x, expected %#x\n", foo, MAGIC3);
|
|
return 1;
|
|
}
|
|
|
|
/* All done, clean up. */
|
|
initial_getfoo = NULL;
|
|
initial_setfoo = NULL;
|
|
initial_foop = NULL;
|
|
|
|
local_getfoo = NULL;
|
|
local_setfoo = NULL;
|
|
local_foop = NULL;
|
|
dlclose (local_handle);
|
|
|
|
global_getfoo = NULL;
|
|
global_setfoo = NULL;
|
|
global_foop = NULL;
|
|
dlclose (global_handle);
|
|
|
|
dlclose (initial_handle);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|