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* tm.texi (RETURN_ADDR_OFFSET): Document.

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From-SVN: r69190
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J"orn Rennecke 2003-07-10 14:56:33 +00:00 committed by Joern Rennecke
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@ -1,3 +1,7 @@
2003-07-10 J"orn Rennecke <joern.rennecke@superh.com>
* tm.texi (RETURN_ADDR_OFFSET): Document.
2003-07-10 Nathan Sidwell <nathan@codesourcery.com>
* gcov-io.h: Update documentation.

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gcc/doc/tm.texi
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@ -2999,6 +2999,13 @@ If you want to support call frame exception handling, you must
define either this macro or the @code{eh_return} instruction pattern.
@end defmac
@defmac RETURN_ADDR_OFFSET
If defined, an integer-valued C expression for which rtl will be generated
to add it to the exception handler address before it is searched in the
exception handling tables, and to subtract it again from the address before
using it to return to the exception handler.
@end defmac
@defmac ASM_PREFERRED_EH_DATA_FORMAT (@var{code}, @var{global})
This macro chooses the encoding of pointers embedded in the exception
handling sections. If at all possible, this should be defined such