arm.opt revision 256281 
1; Options for the ARM port of the compiler.
2
3; Copyright (C) 2005 Free Software Foundation, Inc.
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 2, 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 COPYING.  If not, write to the Free
19; Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
20; 02110-1301, USA.
21
22mabi=
23Target RejectNegative Joined Var(target_abi_name)
24Specify an ABI
25
26mabort-on-noreturn
27Target Report Mask(ABORT_NORETURN)
28Generate a call to abort if a noreturn function returns
29
30mapcs
31Target RejectNegative Mask(APCS_FRAME) MaskExists Undocumented
32
33mapcs-float
34Target Report Mask(APCS_FLOAT)
35Pass FP arguments in FP registers
36
37mapcs-frame
38Target Report Mask(APCS_FRAME)
39Generate APCS conformant stack frames
40
41mapcs-reentrant
42Target Report Mask(APCS_REENT)
43Generate re-entrant, PIC code
44
45mapcs-stack-check
46Target Report Mask(APCS_STACK) Undocumented
47
48march=
49Target RejectNegative Joined
50Specify the name of the target architecture
51
52marm
53Target RejectNegative InverseMask(THUMB) Undocumented
54
55mbig-endian
56Target Report RejectNegative Mask(BIG_END)
57Assume target CPU is configured as big endian
58
59mcallee-super-interworking
60Target Report Mask(CALLEE_INTERWORKING)
61Thumb: Assume non-static functions may be called from ARM code
62
63mcaller-super-interworking
64Target Report Mask(CALLER_INTERWORKING)
65Thumb: Assume function pointers may go to non-Thumb aware code
66
67mcirrus-fix-invalid-insns
68Target Report Mask(CIRRUS_FIX_INVALID_INSNS)
69Cirrus: Place NOPs to avoid invalid instruction combinations
70
71mcpu=
72Target RejectNegative Joined
73Specify the name of the target CPU
74
75mfloat-abi=
76Target RejectNegative Joined Var(target_float_abi_name)
77Specify if floating point hardware should be used
78
79mfp=
80Target RejectNegative Joined Undocumented Var(target_fpe_name)
81
82;; Now ignored.
83mfpe
84Target RejectNegative Mask(FPE) Undocumented
85
86mfpe=
87Target RejectNegative Joined Undocumented Var(target_fpe_name)
88
89mfpu=
90Target RejectNegative Joined Var(target_fpu_name)
91Specify the name of the target floating point hardware/format
92
93mhard-float
94Target RejectNegative
95Alias for -mfloat-abi=hard
96
97mlittle-endian
98Target Report RejectNegative InverseMask(BIG_END)
99Assume target CPU is configured as little endian
100
101mlong-calls
102Target Report Mask(LONG_CALLS)
103Generate call insns as indirect calls, if necessary
104
105mpic-register=
106Target RejectNegative Joined Var(arm_pic_register_string)
107Specify the register to be used for PIC addressing
108
109mpoke-function-name
110Target Report Mask(POKE_FUNCTION_NAME)
111Store function names in object code
112
113msched-prolog
114Target Report Mask(SCHED_PROLOG)
115Permit scheduling of a function's prologue sequence
116
117msingle-pic-base
118Target Report Mask(SINGLE_PIC_BASE)
119Do not load the PIC register in function prologues
120
121msoft-float
122Target RejectNegative
123Alias for -mfloat-abi=soft
124
125mstructure-size-boundary=
126Target RejectNegative Joined Var(structure_size_string)
127Specify the minimum bit alignment of structures
128
129mthumb
130Target Report Mask(THUMB)
131Compile for the Thumb not the ARM
132
133mthumb-interwork
134Target Report Mask(INTERWORK)
135Support calls between Thumb and ARM instruction sets
136
137mtp=
138Target RejectNegative Joined Var(target_thread_switch)
139Specify how to access the thread pointer
140
141mtpcs-frame
142Target Report Mask(TPCS_FRAME)
143Thumb: Generate (non-leaf) stack frames even if not needed
144
145mtpcs-leaf-frame
146Target Report Mask(TPCS_LEAF_FRAME)
147Thumb: Generate (leaf) stack frames even if not needed
148
149mtune=
150Target RejectNegative Joined
151Tune code for the given processor
152
153mwords-little-endian
154Target Report RejectNegative Mask(LITTLE_WORDS)
155Assume big endian bytes, little endian words
156