1 1.1 mrg /* Definitions for PA_RISC with ELF format on 64-bit Linux 2 1.1.1.12 mrg Copyright (C) 1999-2024 Free Software Foundation, Inc. 3 1.1 mrg 4 1.1 mrg This file is part of GCC. 5 1.1 mrg 6 1.1 mrg GCC is free software; you can redistribute it and/or modify 7 1.1 mrg it under the terms of the GNU General Public License as published by 8 1.1 mrg the Free Software Foundation; either version 3, or (at your option) 9 1.1 mrg any later version. 10 1.1 mrg 11 1.1 mrg GCC is distributed in the hope that it will be useful, 12 1.1 mrg but WITHOUT ANY WARRANTY; without even the implied warranty of 13 1.1 mrg MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 1.1 mrg GNU General Public License for more details. 15 1.1 mrg 16 1.1 mrg You should have received a copy of the GNU General Public License 17 1.1 mrg along with GCC; see the file COPYING3. If not see 18 1.1 mrg <http://www.gnu.org/licenses/>. */ 19 1.1 mrg 20 1.1.1.12 mrg /* 64-bit ELF target. */ 21 1.1.1.12 mrg #undef TARGET_ELF64 22 1.1.1.12 mrg #define TARGET_ELF64 1 23 1.1.1.12 mrg 24 1.1 mrg #if 0 /* needs some work :-( */ 25 1.1 mrg /* If defined, this macro specifies a table of register pairs used to 26 1.1 mrg eliminate unneeded registers that point into the stack frame. */ 27 1.1 mrg 28 1.1 mrg #define ELIMINABLE_REGS \ 29 1.1 mrg { \ 30 1.1 mrg {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ 31 1.1 mrg {ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ 32 1.1 mrg {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ 33 1.1 mrg } 34 1.1 mrg 35 1.1.1.5 mrg /* This macro returns the initial difference between the specified pair 36 1.1.1.5 mrg of registers. */ 37 1.1 mrg #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ 38 1.1 mrg do \ 39 1.1 mrg { \ 40 1.1 mrg int fsize; \ 41 1.1 mrg \ 42 1.1.1.2 mrg fsize = pa_compute_frame_size (get_frame_size (), 0); \ 43 1.1 mrg if ((TO) == FRAME_POINTER_REGNUM \ 44 1.1 mrg && (FROM) == ARG_POINTER_REGNUM) \ 45 1.1 mrg { \ 46 1.1 mrg (OFFSET) = -16; \ 47 1.1 mrg break; \ 48 1.1 mrg } \ 49 1.1 mrg \ 50 1.1 mrg gcc_assert ((TO) == STACK_POINTER_REGNUM); \ 51 1.1 mrg \ 52 1.1 mrg switch (FROM) \ 53 1.1 mrg { \ 54 1.1 mrg case FRAME_POINTER_REGNUM: \ 55 1.1 mrg (OFFSET) = - fsize; \ 56 1.1 mrg break; \ 57 1.1 mrg \ 58 1.1 mrg case ARG_POINTER_REGNUM: \ 59 1.1 mrg (OFFSET) = - fsize - 16; \ 60 1.1 mrg break; \ 61 1.1 mrg \ 62 1.1 mrg default: \ 63 1.1 mrg gcc_unreachable (); \ 64 1.1 mrg } \ 65 1.1 mrg } while (0) 66 1.1 mrg #endif 67
Indexes created Mon May 04 00:23:20 UTC 2026