From 99fe3b0e7a0a9d72152cc86df0571c231c83cae4 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 24 Jul 2003 20:07:00 +0000 Subject: Update. 2003-07-24 Ulrich Drepper * include/link.h (struct link_map): Add l_tls_firstbyte_offset field. * sysdeps/generic/dl-tls.c [TLS_TCB_AT_TP] (_dl_determine_tlsoffset): Fix calculation of offsets to take misalignment of first byte in file into account. * elf/dl-load.c (_dl_map_object_from_fd): Initialize l_tls_firstbyte_offset field. * elf/rtld.c (_dl_start_final, _dl_start, dl_main): Likewise. * elf/dl-reloc.c (_dl_allocate_static_tls): Change return type to int. Take l_tls_firstbyte_offset information into account. (CHECK_STATIS_TLS): _dl_allocate_static_tls can fail now. * sysdeps/generic/ldsodefs.h: Adjust _dl_allocate_static_tls prototype. * elf/Makefile: Add rules to build and run tst-tls14. * elf/tst-tls14.c: New file. * elf/tst-tlsmod14a.c: New file. * elf/tst-tlsmod14b.c: New file. --- elf/tst-tls14.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 elf/tst-tls14.c (limited to 'elf/tst-tls14.c') diff --git a/elf/tst-tls14.c b/elf/tst-tls14.c new file mode 100644 index 0000000000..4ae367a38f --- /dev/null +++ b/elf/tst-tls14.c @@ -0,0 +1,56 @@ +/* Check alignment of TLS variable. */ +#include +#include +#include +#include + + +#define AL 4096 +struct foo +{ + int i; +} __attribute ((aligned (AL))); + +static __thread struct foo f; +static struct foo g; + + +extern int in_dso1 (void); + + +static int +do_test (void) +{ + int result = 0; + + int fail = (((uintptr_t) &f) & (AL - 1)) != 0; + printf ("&f = %p %s\n", &f, fail ? "FAIL" : "OK"); + result |= fail; + + fail = (((uintptr_t) &g) & (AL - 1)) != 0; + printf ("&g = %p %s\n", &g, fail ? "FAIL" : "OK"); + result |= fail; + + result |= in_dso1 (); + + void *h = dlopen ("tst-tlsmod14b.so", RTLD_LAZY); + if (h == NULL) + { + printf ("cannot open tst-tlsmod14b.so: %m\n"); + exit (1); + } + + int (*fp) (void) = (int (*) (void)) dlsym (h, "in_dso2"); + if (fp == NULL) + { + puts ("cannot find in_dso2"); + exit (1); + } + + result |= fp (); + + return result; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" -- cgit v1.2.3