diff options
Diffstat (limited to 'dlfcn/tststatic2.c')
| -rw-r--r-- | dlfcn/tststatic2.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/dlfcn/tststatic2.c b/dlfcn/tststatic2.c new file mode 100644 index 0000000..85c0fb2 --- /dev/null +++ b/dlfcn/tststatic2.c @@ -0,0 +1,166 @@ +#include <dlfcn.h> +#include <link.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <gnu/lib-names.h> + +int +main (void) +{ + void *handle = dlopen ("modstatic2-nonexistent.so", RTLD_LAZY); + if (handle == NULL) + printf ("nonexistent: %s\n", dlerror ()); + else + exit (1); + + handle = dlopen ("modstatic2.so", RTLD_LAZY); + if (handle == NULL) + { + printf ("%s\n", dlerror ()); + exit (1); + } + + int (*test) (FILE *, int); + test = dlsym (handle, "test"); + if (test == NULL) + { + printf ("%s\n", dlerror ()); + exit (1); + } + + Dl_info info; + int res = dladdr (test, &info); + if (res == 0) + { + puts ("dladdr returned 0"); + exit (1); + } + else + { + if (strstr (info.dli_fname, "modstatic2.so") == NULL + || strcmp (info.dli_sname, "test") != 0) + { + printf ("fname %s sname %s\n", info.dli_fname, info.dli_sname); + exit (1); + } + if (info.dli_saddr != (void *) test) + { + printf ("saddr %p != test %p\n", info.dli_saddr, test); + exit (1); + } + } + + ElfW(Sym) *sym; + void *symp; + res = dladdr1 (test, &info, &symp, RTLD_DL_SYMENT); + if (res == 0) + { + puts ("dladdr1 returned 0"); + exit (1); + } + else + { + if (strstr (info.dli_fname, "modstatic2.so") == NULL + || strcmp (info.dli_sname, "test") != 0) + { + printf ("fname %s sname %s\n", info.dli_fname, info.dli_sname); + exit (1); + } + if (info.dli_saddr != (void *) test) + { + printf ("saddr %p != test %p\n", info.dli_saddr, test); + exit (1); + } + sym = symp; + if (sym == NULL) + { + puts ("sym == NULL\n"); + exit (1); + } + if (ELF32_ST_BIND (sym->st_info) != STB_GLOBAL + || ELF32_ST_VISIBILITY (sym->st_other) != STV_DEFAULT) + { + printf ("bind %d visibility %d\n", + (int) ELF32_ST_BIND (sym->st_info), + (int) ELF32_ST_VISIBILITY (sym->st_other)); + exit (1); + } + } + + Lmid_t lmid; + res = dlinfo (handle, RTLD_DI_LMID, &lmid); + if (res != 0) + { + printf ("dlinfo returned %d %s\n", res, dlerror ()); + exit (1); + } + else if (lmid != LM_ID_BASE) + { + printf ("lmid %d != %d\n", (int) lmid, (int) LM_ID_BASE); + exit (1); + } + + res = test (stdout, 2); + if (res != 4) + { + printf ("Got %i, expected 4\n", res); + exit (1); + } + + void *handle2 = dlopen (LIBDL_SO, RTLD_LAZY); + if (handle2 == NULL) + { + printf ("libdl.so: %s\n", dlerror ()); + exit (1); + } + +#ifdef DO_VERSIONING + if (dlvsym (handle2, "_dlfcn_hook", "GLIBC_PRIVATE") == NULL) + { + printf ("dlvsym: %s\n", dlerror ()); + exit (1); + } +#endif + + void *(*dlsymfn) (void *, const char *); + dlsymfn = dlsym (handle2, "dlsym"); + if (dlsymfn == NULL) + { + printf ("dlsym \"dlsym\": %s\n", dlerror ()); + exit (1); + } + void *test2 = dlsymfn (handle, "test"); + if (test2 == NULL) + { + printf ("%s\n", dlerror ()); + exit (1); + } + else if (test2 != (void *) test) + { + printf ("test %p != test2 %p\n", test, test2); + exit (1); + } + + dlclose (handle2); + dlclose (handle); + + handle = dlmopen (LM_ID_BASE, "modstatic2.so", RTLD_LAZY); + if (handle == NULL) + { + printf ("%s\n", dlerror ()); + exit (1); + } + dlclose (handle); + + handle = dlmopen (LM_ID_NEWLM, "modstatic2.so", RTLD_LAZY); + if (handle == NULL) + printf ("LM_ID_NEWLM: %s\n", dlerror ()); + else + { + puts ("LM_ID_NEWLM unexpectedly succeeded"); + exit (1); + } + + return 0; +} |