xref: /netbsd-src/external/gpl3/gcc.old/dist/gcc/config/rx/rx.opt (revision 413d532bcc3f62d122e56d92e13ac64825a40baf)
1; Command line options for the Renesas RX port of GCC.
2; Copyright (C) 2008, 2009, 2010 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
22; The default is -fpu -m32bit-doubles.
23
24m64bit-doubles
25Target RejectNegative Mask(64BIT_DOUBLES) Report
26Store doubles in 64 bits.
27
28m32bit-doubles
29Target RejectNegative InverseMask(64BIT_DOUBLES) Report
30Stores doubles in 32 bits.  This is the default.
31
32nofpu
33Target RejectNegative Mask(NO_USE_FPU) Report
34Disable the use of RX FPU instructions.
35
36mnofpu
37Target RejectNegative Mask(NO_USE_FPU) MaskExists Undocumented
38
39fpu
40Target RejectNegative InverseMask(NO_USE_FPU) Report
41Enable the use of RX FPU instructions.  This is the default.
42
43;---------------------------------------------------
44
45mcpu=
46Target RejectNegative Joined Var(rx_cpu_name) Report
47Specify the target RX cpu type.
48
49patch=
50Target RejectNegative Joined Var(rx_cpu_name)
51Alias for -mcpu.
52
53;---------------------------------------------------
54
55mbig-endian-data
56Target RejectNegative Mask(BIG_ENDIAN_DATA) Report
57Data is stored in big-endian format.
58
59mlittle-endian-data
60Target RejectNegative InverseMask(BIG_ENDIAN_DATA) Report
61Data is stored in little-endian format.  (Default).
62
63;---------------------------------------------------
64
65msmall-data-limit=
66Target RejectNegative Joined UInteger Var(rx_small_data_limit) Init(0)
67Maximum size of global and static variables which can be placed into the small data area.
68
69;---------------------------------------------------
70
71msim
72Target
73Use the simulator runtime.
74
75;---------------------------------------------------
76
77mas100-syntax
78Target Mask(AS100_SYNTAX) Report
79Generate 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.
80
81;---------------------------------------------------
82
83mrelax
84Target
85Enable linker relaxation.
86
87;---------------------------------------------------
88
89mmax-constant-size=
90Target RejectNegative Joined UInteger Var(rx_max_constant_size) Init(0)
91Maximum size in bytes of constant values allowed as operands.
92
93;---------------------------------------------------
94
95mint-register=
96Target RejectNegative Joined UInteger Var(rx_interrupt_registers) Init(0)
97Specifies the number of registers to reserve for interrupt handlers.
98
99;---------------------------------------------------
100
101msave-acc-in-interrupts
102Target Mask(SAVE_ACC_REGISTER)
103Specifies whether interrupt functions should save and restore the accumulator register.
104