1991-03-22 05:11:25 +08:00
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Things that still need to be handled: -*- Text -*-
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o - change the memory usage to reflect the message which follows the
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page break.
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o - implement bfd_abort, which should close the bfd but not alter the
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filesystem.
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o - update the bfd doc; write a how-to-write-a-backend doc.
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o - change reloc handling as per Steve's suggestion.
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1991-07-31 17:30:37 +09:00
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(more details please.....)
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1991-03-22 05:11:25 +08:00
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Changing the way bfd uses memory. The new convention is simple:
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o - bfd will never write into user-supplied memory, nor attempt to
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free it.
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o - closing a bfd may reclaim all bfd-allocated memory associated
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with that bfd.
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- - bfd_target_list will be the one exception; you must reclaim the
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returned vector yourself.
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Interface implications are minor (get_symcount_upper_bound will go
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away; bfd_cannicalize_symtab will allocate its own memory, etc).
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Certain operations consume a lot of memory; for them manual
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reclaimation is available:
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o - bfd_canonicalize_symtab will return a pointer to a
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null-terminated vector of symbols. Subsequent calls may or may
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not return the same pointer.
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bfd_canonicalize_relocs will do the same; returning a pointer to
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an array of arelocs. Calling this function will read symbols in
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too.
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o - bfd_reclaim_relocs will free the memory used by these relocs.
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the symbols will be untouched.
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bfd_reclaim_symtab (ne bfd_reclaim_symbol_table) will free the
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memory allocated by canonialize_symtab.
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Since relocations point to symbols, any relocations obtained by a
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call to bfd_canonicalize_relocs will be reclaimed as well.
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o - if you don't call the reclaim_ functions, the memory will be
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reclaimed at bfd_close time.
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