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authorAlan Modra <amodra@gcc.gnu.org>2001-04-13 14:43:43 +0930
committerAlan Modra <amodra@gcc.gnu.org>2001-04-13 14:43:43 +0930
commita7e184fc5f6e000def7e85ba9719a8451196730a (patch)
tree04f6fd96115cbc3662f9b2b72fa14a2ab18bf060 /gcc/config/pa/pa64-linux.h
parente25724d8849fe80ef00f2b5ff2eeaf387b1b4ff7 (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.h75
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
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+++ 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