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jeremybenn |
; Options for the OR32 port of the compiler
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399 |
jeremybenn |
; This file is part of GCC.
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;
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; Copyright (C) 2010 Embecosm Limited
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;
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; GCC is free software; you can redistribute it and/or modify it under
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; the terms of the GNU General Public License as published by the Free
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; Software Foundation; either version 3, or (at your option) any later
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; version.
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;
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; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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; WARRANTY; without even the implied warranty of MERCHANTABILITY or
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; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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; for more details.
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;
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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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; .
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282 |
jeremybenn |
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mhard-float
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Target RejectNegative Mask(HARD_FLOAT)
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Use hardware floating point
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msoft-float
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Target RejectNegative InverseMask(HARD_FLOAT)
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Do not use hardware floating point
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mdouble-float
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Target Report RejectNegative Mask(DOUBLE_FLOAT)
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Allow hardware floating-point instructions to cover both 32-bit and 64-bit operations
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mhard-div
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Target RejectNegative Mask(HARD_DIV)
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Use hardware division
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msoft-div
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Target RejectNegative InverseMask(HARD_DIV)
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Do not use hardware division
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mhard-mul
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Target RejectNegative Mask(HARD_MUL)
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Use hardware multiplication
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msoft-mul
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Target RejectNegative InverseMask(HARD_MUL)
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Do not use hardware multiplication
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msext
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Target Mask(MASK_SEXT)
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Use sign-extending instructions
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mcmov
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Target Mask(MASK_CMOV)
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Use conditional move instructions
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mlogue
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399 |
jeremybenn |
Target Mask(SCHED_LOGUE)
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282 |
jeremybenn |
Schedule prologue/epilogue
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mror
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Target Mask(MASK_ROR)
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Emit ROR instructions
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julius |
mboard=
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Target RejectNegative Joined
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Link with libgloss configuration suitable for this board
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282 |
jeremybenn |
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452 |
jeremybenn |
mnewlib
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Target Report RejectNegative Var(or32_libc,or32_libc_newlib) Init(OR32_LIBC_DEFAULT)
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Compile for the Linux/Gnu/newlib based toolchain
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;; muclibc / mglibc are defined in linux.opt, so we can't easily re-define
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;; how they are recorded.
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;; We could remove linux.opt from extra_options, but that could backfire if
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;; more options are added that we don't want to remove. Hence we use
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;; TARGET_HANDLE_OPTION.
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muclibc
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Target RejectNegative
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Use uClibc
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mglibc
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Target RejectNegative
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Use glibc (not supported)
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399 |
jeremybenn |
;; provide struct padding as in previous releases.
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;; Note that this will only affect STRUCTURE_SIZE_BOUNDARY, in particular
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;; make 2 byte structs 4-byte alignned and sized.
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;; We still use ROUND_TYPE_ALIGN to increase alignment of larger structs.
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mpadstruct
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Target Report RejectNegative Mask(PADSTRUCT)
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Make structs a multiple of 4 bytes (warning: ABI altered)
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414 |
jeremybenn |
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mredzone=
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Target RejectNegative Joined UInteger Var(or32_redzone) Init(128)
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Set the size of the stack below sp that is assumed to be safe from interrupts.
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