| /* Target definitions for GNU compiler for VAX using ELF |
| Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc. |
| Contributed by Matt Thomas <matt@3am-software.com> |
| |
| This file is part of GCC. |
| |
| GCC 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. |
| |
| GCC 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 GCC; see the file COPYING. If not, write to |
| the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #undef TARGET_ELF |
| #define TARGET_ELF 1 |
| |
| #undef REGISTER_PREFIX |
| #undef REGISTER_NAMES |
| #define REGISTER_PREFIX "%" |
| #define REGISTER_NAMES \ |
| { "%r0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7", \ |
| "%r8", "%r9", "%r10", "%r11", "%ap", "%fp", "%sp", "%pc", } |
| |
| #undef SIZE_TYPE |
| #define SIZE_TYPE "long unsigned int" |
| |
| #undef PTRDIFF_TYPE |
| #define PTRDIFF_TYPE "long int" |
| |
| /* Profiling routine. */ |
| #undef VAX_FUNCTION_PROFILER_NAME |
| #define VAX_FUNCTION_PROFILER_NAME "__mcount" |
| |
| /* Let's be re-entrant. */ |
| #undef PCC_STATIC_STRUCT_RETURN |
| |
| /* Before the prologue, the top of the frame is below the argument |
| count pushed by the CALLS and before the start of the saved registers. */ |
| #define INCOMING_FRAME_SP_OFFSET 0 |
| |
| /* We use R2-R5 (call-clobbered) registers for exceptions. */ |
| #define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N) + 2 : INVALID_REGNUM) |
| |
| /* Place the top of the stack for the DWARF2 EH stackadj value. */ |
| #define EH_RETURN_STACKADJ_RTX \ |
| gen_rtx_MEM (SImode, \ |
| plus_constant (gen_rtx_REG (Pmode, FRAME_POINTER_REGNUM),\ |
| -4)) |
| |
| /* Simple store the return handler into the call frame. */ |
| #define EH_RETURN_HANDLER_RTX \ |
| gen_rtx_MEM (Pmode, \ |
| plus_constant (gen_rtx_REG (Pmode, FRAME_POINTER_REGNUM),\ |
| 16)) |
| |
| |
| /* Reserve the top of the stack for exception handler stackadj value. */ |
| #undef STARTING_FRAME_OFFSET |
| #define STARTING_FRAME_OFFSET -4 |
| |
| /* The VAX wants no space between the case instruction and the jump table. */ |
| #undef ASM_OUTPUT_BEFORE_CASE_LABEL |
| #define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE, PREFIX, NUM, TABLE) |
| |
| #undef OVERRIDE_OPTIONS |
| #define OVERRIDE_OPTIONS \ |
| do \ |
| { \ |
| /* Do generic VAX overrides. */ \ |
| override_options (); \ |
| \ |
| /* Turn off function CSE if we're doing PIC. */ \ |
| if (flag_pic) \ |
| flag_no_function_cse = 1; \ |
| } \ |
| while (0) |
| |
| /* VAX ELF is always gas; override the generic VAX ASM_SPEC. */ |
| |
| #undef ASM_SPEC |
| #define ASM_SPEC "" |
| |