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annotate gcc/config/rx/rx.opt @ 67:f6334be47118

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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 22 Mar 2011 17:18:12 +0900
parents b7f97abdc517
children 04ced10e8804
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1 ; Command line options for the Renesas RX port of GCC.
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2 ; Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
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3 ; Contributed by Red Hat.
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4 ;
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5 ; This file is part of GCC.
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6 ;
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7 ; GCC is free software; you can redistribute it and/or modify it under
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8 ; the terms of the GNU General Public License as published by the Free
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9 ; Software Foundation; either version 3, or (at your option) any later
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10 ; version.
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11 ;
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12 ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 ; WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 ; for more details.
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16 ;
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17 ; You should have received a copy of the GNU General Public License
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18 ; along with GCC; see the file COPYING3. If not see
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19 ; <http://www.gnu.org/licenses/>.
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20 ;---------------------------------------------------
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21
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22 ; The default is -fpu -m32bit-doubles.
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23
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24 m64bit-doubles
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25 Target RejectNegative Mask(64BIT_DOUBLES) Report
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26 Store doubles in 64 bits.
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27
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28 m32bit-doubles
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29 Target RejectNegative InverseMask(64BIT_DOUBLES) Report
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30 Stores doubles in 32 bits. This is the default.
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31
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32 nofpu
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33 Target RejectNegative Alias(mnofpu)
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34 Disable the use of RX FPU instructions.
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35
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36 mnofpu
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37 Target RejectNegative Mask(NO_USE_FPU) Report Undocumented
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38
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39 fpu
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40 Target RejectNegative InverseMask(NO_USE_FPU) Report
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41 Enable the use of RX FPU instructions. This is the default.
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42
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43 ;---------------------------------------------------
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44
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45 mcpu=
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46 Target RejectNegative Joined Var(rx_cpu_name) Report
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47 Specify the target RX cpu type.
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48
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49 ;---------------------------------------------------
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50
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51 mbig-endian-data
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52 Target RejectNegative Mask(BIG_ENDIAN_DATA) Report
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53 Data is stored in big-endian format.
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54
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55 mlittle-endian-data
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56 Target RejectNegative InverseMask(BIG_ENDIAN_DATA) Report
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57 Data is stored in little-endian format. (Default).
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58
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59 ;---------------------------------------------------
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60
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61 msmall-data-limit=
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62 Target RejectNegative Joined UInteger Var(rx_small_data_limit) Init(0)
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63 Maximum size of global and static variables which can be placed into the small data area.
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64
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65 ;---------------------------------------------------
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66
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67 msim
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68 Target
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69 Use the simulator runtime.
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70
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71 ;---------------------------------------------------
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72
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73 mas100-syntax
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74 Target Mask(AS100_SYNTAX) Report
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75 Generate assembler output that is compatible with the Renesas AS100 assembler. This may restrict some of the compiler's capabilities. The default is to generate GAS compatable syntax.
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76
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77 ;---------------------------------------------------
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78
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79 mrelax
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80 Target
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81 Enable linker relaxation.
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82
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83 ;---------------------------------------------------
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84
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85 mmax-constant-size=
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86 Target RejectNegative Joined UInteger Var(rx_max_constant_size) Init(0)
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87 Maximum size in bytes of constant values allowed as operands.
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88
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89 ;---------------------------------------------------
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90
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91 mint-register=
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92 Target RejectNegative Joined UInteger Var(rx_interrupt_registers) Init(0)
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93 Specifies the number of registers to reserve for interrupt handlers.
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94
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95 ;---------------------------------------------------
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96
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97 msave-acc-in-interrupts
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98 Target Mask(SAVE_ACC_REGISTER)
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99 Specifies whether interrupt functions should save and restore the accumulator register.