1 /* Definitions for PA_RISC with ELF format on 64-bit Linux 2 Copyright (C) 1999-2024 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3, or (at your option) 9 any later version. 10 11 GCC is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING3. If not see 18 <http://www.gnu.org/licenses/>. */ 19 20 /* 64-bit ELF target. */ 21 #undef TARGET_ELF64 22 #define TARGET_ELF64 1 23 24 #if 0 /* needs some work :-( */ 25 /* If defined, this macro specifies a table of register pairs used to 26 eliminate unneeded registers that point into the stack frame. */ 27 28 #define ELIMINABLE_REGS \ 29 { \ 30 {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ 31 {ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ 32 {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ 33 } 34 35 /* This macro returns the initial difference between the specified pair 36 of registers. */ 37 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ 38 do \ 39 { \ 40 int fsize; \ 41 \ 42 fsize = pa_compute_frame_size (get_frame_size (), 0); \ 43 if ((TO) == FRAME_POINTER_REGNUM \ 44 && (FROM) == ARG_POINTER_REGNUM) \ 45 { \ 46 (OFFSET) = -16; \ 47 break; \ 48 } \ 49 \ 50 gcc_assert ((TO) == STACK_POINTER_REGNUM); \ 51 \ 52 switch (FROM) \ 53 { \ 54 case FRAME_POINTER_REGNUM: \ 55 (OFFSET) = - fsize; \ 56 break; \ 57 \ 58 case ARG_POINTER_REGNUM: \ 59 (OFFSET) = - fsize - 16; \ 60 break; \ 61 \ 62 default: \ 63 gcc_unreachable (); \ 64 } \ 65 } while (0) 66 #endif 67
Indexes created Sat Apr 25 00:22:52 UTC 2026