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99fe3b0e7a
2003-07-24 Ulrich Drepper <drepper@redhat.com> * 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.
57 lines
980 B
C
57 lines
980 B
C
/* Check alignment of TLS variable. */
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#include <dlfcn.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define AL 4096
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struct foo
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{
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int i;
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} __attribute ((aligned (AL)));
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static __thread struct foo f;
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static struct foo g;
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extern int in_dso1 (void);
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static int
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do_test (void)
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{
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int result = 0;
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int fail = (((uintptr_t) &f) & (AL - 1)) != 0;
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printf ("&f = %p %s\n", &f, fail ? "FAIL" : "OK");
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result |= fail;
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fail = (((uintptr_t) &g) & (AL - 1)) != 0;
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printf ("&g = %p %s\n", &g, fail ? "FAIL" : "OK");
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result |= fail;
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result |= in_dso1 ();
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void *h = dlopen ("tst-tlsmod14b.so", RTLD_LAZY);
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if (h == NULL)
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{
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printf ("cannot open tst-tlsmod14b.so: %m\n");
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exit (1);
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}
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int (*fp) (void) = (int (*) (void)) dlsym (h, "in_dso2");
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if (fp == NULL)
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{
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puts ("cannot find in_dso2");
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exit (1);
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}
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result |= fp ();
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return result;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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