2007-05-16 H.J. Lu <hongjiu.lu@intel.com>
Alan Modra <amodra@bigpond.net.au> * elflink.c (_bfd_elf_adjust_dynamic_copy): Align dynamic bss section to the minimum alignment.
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2 changed files with 25 additions and 19 deletions
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@ -1,3 +1,9 @@
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2007-05-16 H.J. Lu <hongjiu.lu@intel.com>
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Alan Modra <amodra@bigpond.net.au>
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* elflink.c (_bfd_elf_adjust_dynamic_copy): Align dynamic bss
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section to the minimum alignment.
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2007-05-15 H.J. Lu <hongjiu.lu@intel.com>
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Alan Modra <amodra@bigpond.net.au>
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@ -2616,33 +2616,33 @@ bfd_boolean
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_bfd_elf_adjust_dynamic_copy (struct elf_link_hash_entry *h,
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asection *dynbss)
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{
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unsigned int power_of_two, orig_power_of_two;
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unsigned int power_of_two;
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bfd_vma mask;
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asection *sec = h->root.u.def.section;
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/* The section aligment of definition is the maximum alignment
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requirement of symbols defined in the section. */
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power_of_two = bfd_get_section_alignment (dynbss->owner, dynbss);
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orig_power_of_two = bfd_get_section_alignment (sec->owner, sec);
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if (orig_power_of_two > power_of_two)
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{
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/* Adjust the section alignment if needed. */
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if (! bfd_set_section_alignment (dynbss->owner, dynbss,
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orig_power_of_two))
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return FALSE;
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}
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/* We make sure that the symbol will be aligned properly. Since we
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don't know its alignment requirement, we start with the maximum
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alignment and check low bits of the symbol address for the
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minimum alignment. */
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mask = ((bfd_vma) 1 << orig_power_of_two) - 1;
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requirement of symbols defined in the section. Since we don't
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know the symbol alignment requirement, we start with the
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maximum alignment and check low bits of the symbol address
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for the minimum alignment. */
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power_of_two = bfd_get_section_alignment (sec->owner, sec);
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mask = ((bfd_vma) 1 << power_of_two) - 1;
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while ((h->root.u.def.value & mask) != 0)
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{
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mask >>= 1;
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--orig_power_of_two;
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--power_of_two;
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}
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if (power_of_two > bfd_get_section_alignment (dynbss->owner,
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dynbss))
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{
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/* Adjust the section alignment if needed. */
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if (! bfd_set_section_alignment (dynbss->owner, dynbss,
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power_of_two))
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return FALSE;
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}
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/* We make sure that the symbol will be aligned properly. */
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dynbss->size = BFD_ALIGN (dynbss->size, mask + 1);
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/* Define the symbol as being at this point in DYNBSS. */
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