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Added -mpcrel flag, and underlying support for PC-relative addressing on m68k. 

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Added -mpcrel flag, and underlying support for PC-relative addressing
on m68k. Patch is tested, and approved by Jim Wilson.

From-SVN: r27575
This commit is contained in:
Don Lindsay 1999-06-17 15:09:38 +00:00
parent a1c0cf1f76
commit fb8684745d
1 changed files with 8 additions and 1 deletions
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9
gcc/invoke.texi
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@ -212,7 +212,7 @@ in the following sections.
@emph{M680x0 Options}
-m68000 -m68020 -m68020-40 -m68020-60 -m68030 -m68040
-m68060 -mcpu32 -m5200 -m68881 -mbitfield -mc68000 -mc68020
-mfpa -mnobitfield -mrtd -mshort -msoft-float
-mfpa -mnobitfield -mrtd -mshort -msoft-float -mpcrel
-malign-int
@emph{VAX Options}
@ -3257,6 +3257,13 @@ faster on processors with 32-bit busses at the expense of more memory.
align structures containing the above types differently than
most published application binary interface specifications for the m68k.
@item -mpcrel
Use the pc-relative addressing mode of the 68000 directly, instead of
using a global offset table. At present, this option implies -fpic,
allowing at most a 16-bit offset for pc-relative addressing. -fPIC is
not presently supported with -mpcrel, though this could be supported for
68020 and higher processors.
@end table
@node VAX Options