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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} @emph{M680x0 Options}
-m68000 -m68020 -m68020-40 -m68020-60 -m68030 -m68040 -m68000 -m68020 -m68020-40 -m68020-60 -m68030 -m68040
-m68060 -mcpu32 -m5200 -m68881 -mbitfield -mc68000 -mc68020 -m68060 -mcpu32 -m5200 -m68881 -mbitfield -mc68000 -mc68020
-mfpa -mnobitfield -mrtd -mshort -msoft-float -mfpa -mnobitfield -mrtd -mshort -msoft-float -mpcrel
-malign-int -malign-int
@emph{VAX Options} @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 align structures containing the above types differently than
most published application binary interface specifications for the m68k. 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 @end table
@node VAX Options @node VAX Options