1; Options for the S/390 / zSeries port of the compiler.
2
3; Copyright (C) 2005, 2006 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
22m31
23Target Report RejectNegative InverseMask(64BIT)
2431 bit ABI
25
26m64
27Target Report RejectNegative Mask(64BIT)
2864 bit ABI
29
30march=
31Target RejectNegative Joined Var(s390_arch_string)
32Generate code for given CPU
33
34mbackchain
35Target Report Mask(BACKCHAIN)
36Maintain backchain pointer
37
38mdebug
39Target Report Mask(DEBUG_ARG)
40Additional debug prints
41
42mesa
43Target Report RejectNegative InverseMask(ZARCH)
44ESA/390 architecture
45
46mfused-madd
47Target Report Mask(FUSED_MADD)
48Enable fused multiply/add instructions
49
50mhard-float
51Target Report RejectNegative Mask(HARD_FLOAT)
52Use hardware fp
53
54mlong-double-128
55Target Report RejectNegative Mask(LONG_DOUBLE_128)
56Use 128-bit long double
57
58mlong-double-64
59Target Report RejectNegative InverseMask(LONG_DOUBLE_128)
60Use 64-bit long double
61
62mpacked-stack
63Target Report Mask(PACKED_STACK)
64Use packed stack layout
65
66msmall-exec
67Target Report Mask(SMALL_EXEC)
68Use bras for executable < 64k
69
70msoft-float
71Target Report RejectNegative InverseMask(HARD_FLOAT, SOFT_FLOAT)
72Don't use hardware fp
73
74mstack-guard=
75Target RejectNegative Joined
76Set the max. number of bytes which has to be left to stack size before a trap instruction is triggered
77
78mstack-size=
79Target RejectNegative Joined
80Emit extra code in the function prologue in order to trap if the stack size exceeds the given limit
81
82mtune=
83Target RejectNegative Joined
84Schedule code for given CPU
85
86mmvcle
87Target Report Mask(MVCLE)
88mvcle use
89
90mwarn-dynamicstack
91Target RejectNegative Var(s390_warn_dynamicstack_p)
92Warn if a function uses alloca or creates an array with dynamic size
93
94mwarn-framesize=
95Target RejectNegative Joined
96Warn if a single function's framesize exceeds the given framesize
97
98mzarch
99Target Report RejectNegative Mask(ZARCH)
100z/Architecture
101