rx.opt revision 1.3
1; Command line options for the Renesas RX port of GCC. 2; Copyright (C) 2008-2013 Free Software Foundation, Inc. 3; Contributed by Red Hat. 4; 5; This file is part of GCC. 6; 7; GCC is free software; you can redistribute it and/or modify it under 8; the terms of the GNU General Public License as published by the Free 9; Software Foundation; either version 3, or (at your option) any later 10; version. 11; 12; GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13; WARRANTY; without even the implied warranty of MERCHANTABILITY or 14; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15; for more details. 16; 17; You should have received a copy of the GNU General Public License 18; along with GCC; see the file COPYING3. If not see 19; <http://www.gnu.org/licenses/>. 20;--------------------------------------------------- 21 22HeaderInclude 23config/rx/rx-opts.h 24 25; The default is -fpu -m32bit-doubles. 26 27m64bit-doubles 28Target RejectNegative Mask(64BIT_DOUBLES) Report 29Store doubles in 64 bits. 30 31m32bit-doubles 32Target RejectNegative InverseMask(64BIT_DOUBLES) Report 33Stores doubles in 32 bits. This is the default. 34 35nofpu 36Target RejectNegative Alias(mnofpu) 37Disable the use of RX FPU instructions. 38 39mnofpu 40Target RejectNegative Mask(NO_USE_FPU) Report Undocumented 41 42fpu 43Target RejectNegative InverseMask(NO_USE_FPU) Report 44Enable the use of RX FPU instructions. This is the default. 45 46;--------------------------------------------------- 47 48mcpu= 49Target RejectNegative Joined Var(rx_cpu_type) Report ToLower Enum(rx_cpu_types) Init(RX600) 50Specify the target RX cpu type. 51 52Enum 53Name(rx_cpu_types) Type(enum rx_cpu_types) 54 55EnumValue 56Enum(rx_cpu_types) String(rx610) Value(RX610) 57 58EnumValue 59Enum(rx_cpu_types) String(rx200) Value(RX200) 60 61EnumValue 62Enum(rx_cpu_types) String(rx600) Value(RX600) 63 64;--------------------------------------------------- 65 66mbig-endian-data 67Target RejectNegative Mask(BIG_ENDIAN_DATA) Report 68Data is stored in big-endian format. 69 70mlittle-endian-data 71Target RejectNegative InverseMask(BIG_ENDIAN_DATA) Report 72Data is stored in little-endian format. (Default). 73 74;--------------------------------------------------- 75 76msmall-data-limit= 77Target RejectNegative Joined UInteger Var(rx_small_data_limit) Init(0) 78Maximum size of global and static variables which can be placed into the small data area. 79 80;--------------------------------------------------- 81 82msim 83Target 84Use the simulator runtime. 85 86;--------------------------------------------------- 87 88mas100-syntax 89Target Mask(AS100_SYNTAX) Report 90Generate 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 compatible syntax. 91 92;--------------------------------------------------- 93 94mrelax 95Target 96Enable linker relaxation. 97 98;--------------------------------------------------- 99 100mmax-constant-size= 101Target RejectNegative Joined UInteger Var(rx_max_constant_size) Init(0) 102Maximum size in bytes of constant values allowed as operands. 103 104;--------------------------------------------------- 105 106mint-register= 107Target RejectNegative Joined UInteger Var(rx_deferred_options) Defer 108Specifies the number of registers to reserve for interrupt handlers. 109 110;--------------------------------------------------- 111 112msave-acc-in-interrupts 113Target Mask(SAVE_ACC_REGISTER) 114Specifies whether interrupt functions should save and restore the accumulator register. 115 116;--------------------------------------------------- 117 118mpid 119Target Mask(PID) 120Enables Position-Independent-Data (PID) mode. 121 122;--------------------------------------------------- 123 124mwarn-multiple-fast-interrupts 125Target Report Var(rx_warn_multiple_fast_interrupts) Init(1) Warning 126Warn when multiple, different, fast interrupt handlers are in the compilation unit. 127 128mgcc-abi 129Target RejectNegative Report Mask(GCC_ABI) 130Enable the use of the old, broken, ABI where all stacked function arguments are aligned to 32-bits. 131 132mrx-abi 133Target RejectNegative Report InverseMask(GCC_ABI) 134Enable the use the standard RX ABI where all stacked function arguments are naturally aligned. This is the default. 135