diff options
Diffstat (limited to 'test/tls/tst-tls6.c')
-rw-r--r-- | test/tls/tst-tls6.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/test/tls/tst-tls6.c b/test/tls/tst-tls6.c new file mode 100644 index 000000000..e692aca6b --- /dev/null +++ b/test/tls/tst-tls6.c @@ -0,0 +1,108 @@ +#include <dlfcn.h> +#include <stdio.h> +#include <stdlib.h> + +#include <tls.h> +#include <link.h> +#ifdef __UCLIBC__ +#include "dl-elf.h" +#include "dl-hash.h" +#endif + + +#define TEST_FUNCTION do_test () +static int +do_test (void) +{ +#ifdef USE_TLS + static const char modname[] = "tst-tlsmod2.so"; + int result = 0; + int *foop; + int *foop2; + int (*fp) (int, int *); + void *h; + int i; + int modid = -1; + + for (i = 0; i < 10; ++i) + { + h = dlopen (modname, RTLD_LAZY); + if (h == NULL) + { + printf ("cannot open '%s': %s\n", modname, dlerror ()); + exit (1); + } + + /* Dirty test code here: we peek into a private data structure. + We make sure that the module gets assigned the same ID every + time. The value of the first round is used. */ +#ifdef __UCLIBC__ + if (modid == -1) + modid = ((struct link_map *)((struct dyn_elf *)h)->dyn)->l_tls_modid; + else if (((struct link_map *)((struct dyn_elf *)h)->dyn)->l_tls_modid + != (size_t) modid) + { + printf ("round %d: modid now %zu, initially %d\n", + i, + ((struct link_map *)((struct dyn_elf *)h)->dyn)->l_tls_modid, + modid); + result = 1; + } +#else + if (modid == -1) + modid = ((struct link_map *) h)->l_tls_modid; + else if (((struct link_map *) h)->l_tls_modid != modid) + { + printf ("round %d: modid now %zd, initially %d\n", + i, ((struct link_map *) h)->l_tls_modid, modid); + result = 1; + } +#endif + + foop = dlsym (h, "foo"); + if (foop == NULL) + { + printf ("cannot get symbol 'foo': %s\n", dlerror ()); + exit (1); + } + + *foop = 42 + i; + + fp = dlsym (h, "in_dso"); + if (fp == NULL) + { + printf ("cannot get symbol 'in_dso': %s\n", dlerror ()); + exit (1); + } + + result |= fp (42 + i, foop); + + foop2 = dlsym (h, "foo"); + if (foop2 == NULL) + { + printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ()); + exit (1); + } + + if (foop != foop2) + { + puts ("address of 'foo' different the second time"); + result = 1; + } + else if (*foop != 16) + { + puts ("foo != 16"); + result = 1; + } + + dlclose (h); + } + + return result; +#else + return 0; +#endif +} + + +#include "../test-skeleton.c" |