76 lines
2.4 KiB
C
76 lines
2.4 KiB
C
/* Definitions for PA_RISC with ELF format on 64-bit Linux
|
|
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU CC.
|
|
|
|
GNU CC is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU CC is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU CC; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#undef CPP_SPEC
|
|
#define CPP_SPEC "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{mhppa:-D__hppa__} %{posix:-D_POSIX_SOURCE} -D_PA_RISC2_0 -D__LP64__"
|
|
|
|
#if 0 /* needs some work :-( */
|
|
/* If defined, this macro specifies a table of register pairs used to
|
|
eliminate unneeded registers that point into the stack frame. */
|
|
|
|
#define ELIMINABLE_REGS \
|
|
{ \
|
|
{FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
|
|
{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
|
|
{ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
|
|
}
|
|
|
|
/* A C expression that returns non-zero if the compiler is allowed to try to
|
|
replace register number FROM with register number TO. The frame pointer
|
|
is automatically handled. */
|
|
|
|
#define CAN_ELIMINATE(FROM, TO) 1
|
|
|
|
/* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It
|
|
specifies the initial difference between the specified pair of
|
|
registers. This macro must be defined if `ELIMINABLE_REGS' is
|
|
defined. */
|
|
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
|
|
do \
|
|
{ \
|
|
int fsize; \
|
|
\
|
|
fsize = compute_frame_size (get_frame_size (), 0); \
|
|
if ((TO) == FRAME_POINTER_REGNUM \
|
|
&& (FROM) == ARG_POINTER_REGNUM) \
|
|
{ \
|
|
(OFFSET) = -16; \
|
|
break; \
|
|
} \
|
|
\
|
|
if ((TO) != STACK_POINTER_REGNUM) \
|
|
abort (); \
|
|
\
|
|
switch (FROM) \
|
|
{ \
|
|
case FRAME_POINTER_REGNUM: \
|
|
(OFFSET) = - fsize; \
|
|
break; \
|
|
\
|
|
case ARG_POINTER_REGNUM: \
|
|
(OFFSET) = - fsize - 16; \
|
|
break; \
|
|
\
|
|
default: \
|
|
abort (); \
|
|
} \
|
|
} while (0)
|
|
#endif
|