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author | Alan Modra <amodra@gcc.gnu.org> | 2001-04-13 14:43:43 +0930 |
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committer | Alan Modra <amodra@gcc.gnu.org> | 2001-04-13 14:43:43 +0930 |
commit | a7e184fc5f6e000def7e85ba9719a8451196730a (patch) | |
tree | 04f6fd96115cbc3662f9b2b72fa14a2ab18bf060 /gcc/config/pa/pa64-linux.h | |
parent | e25724d8849fe80ef00f2b5ff2eeaf387b1b4ff7 (diff) | |
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From-SVN: r41323
Diffstat (limited to 'gcc/config/pa/pa64-linux.h')
-rw-r--r-- | gcc/config/pa/pa64-linux.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gcc/config/pa/pa64-linux.h b/gcc/config/pa/pa64-linux.h new file mode 100644 index 0000000..e4abfe6 --- /dev/null +++ b/gcc/config/pa/pa64-linux.h @@ -0,0 +1,75 @@ +/* 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 |