diff options
Diffstat (limited to 'dlfcn/tststatic4.c')
| -rw-r--r-- | dlfcn/tststatic4.c | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/dlfcn/tststatic4.c b/dlfcn/tststatic4.c new file mode 100644 index 0000000000..f6078e07a6 --- /dev/null +++ b/dlfcn/tststatic4.c @@ -0,0 +1,363 @@ +/* Global object symbol access tests with a static executable (BZ #15022). + Copyright (C) 2013 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" |