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julius |
/* Target definitions for GNU compiler for VAX using ELF
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Copyright (C) 2002, 2004, 2005, 2007 Free Software Foundation, Inc.
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Contributed by Matt Thomas <matt@3am-software.com>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#undef TARGET_ELF
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#define TARGET_ELF 1
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#undef REGISTER_PREFIX
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#undef REGISTER_NAMES
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#define REGISTER_PREFIX "%"
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#define REGISTER_NAMES \
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{ "%r0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7", \
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"%r8", "%r9", "%r10", "%r11", "%ap", "%fp", "%sp", "%pc", }
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#undef SIZE_TYPE
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#define SIZE_TYPE "long unsigned int"
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "long int"
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/* Profiling routine. */
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#undef VAX_FUNCTION_PROFILER_NAME
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#define VAX_FUNCTION_PROFILER_NAME "__mcount"
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/* Let's be re-entrant. */
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#undef PCC_STATIC_STRUCT_RETURN
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/* Before the prologue, the top of the frame is below the argument
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count pushed by the CALLS and before the start of the saved registers. */
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#define INCOMING_FRAME_SP_OFFSET 0
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/* We use R2-R5 (call-clobbered) registers for exceptions. */
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#define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N) + 2 : INVALID_REGNUM)
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/* Place the top of the stack for the DWARF2 EH stackadj value. */
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#define EH_RETURN_STACKADJ_RTX \
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gen_rtx_MEM (SImode, \
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plus_constant (gen_rtx_REG (Pmode, FRAME_POINTER_REGNUM),\
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-4))
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/* Simple store the return handler into the call frame. */
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#define EH_RETURN_HANDLER_RTX \
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gen_rtx_MEM (Pmode, \
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plus_constant (gen_rtx_REG (Pmode, FRAME_POINTER_REGNUM),\
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16))
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/* Reserve the top of the stack for exception handler stackadj value. */
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#undef STARTING_FRAME_OFFSET
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#define STARTING_FRAME_OFFSET -4
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/* The VAX wants no space between the case instruction and the jump table. */
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#undef ASM_OUTPUT_BEFORE_CASE_LABEL
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#define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE, PREFIX, NUM, TABLE)
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#undef OVERRIDE_OPTIONS
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#define OVERRIDE_OPTIONS \
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do \
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{ \
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/* Do generic VAX overrides. */ \
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override_options (); \
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\
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/* Turn off function CSE if we're doing PIC. */ \
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if (flag_pic) \
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flag_no_function_cse = 1; \
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} \
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while (0)
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/* VAX ELF is always gas; override the generic VAX ASM_SPEC. */
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#undef ASM_SPEC
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#define ASM_SPEC ""
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