1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
; Options for the S/390 / zSeries port of the compiler.
; Copyright (C) 2005, 2006 Free Software Foundation, Inc.
;
; This file is part of GCC.
;
; GCC is free software; you can redistribute it and/or modify it under
; the terms of the GNU General Public License as published by the Free
; Software Foundation; either version 2, or (at your option) any later
; version.
;
; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
; WARRANTY; without even the implied warranty of MERCHANTABILITY or
; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
; for more details.
;
; You should have received a copy of the GNU General Public License
; along with GCC; see the file COPYING. If not, write to the Free
; Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
; 02110-1301, USA.
m31
Target Report RejectNegative InverseMask(64BIT)
31 bit ABI
m64
Target Report RejectNegative Mask(64BIT)
64 bit ABI
march=
Target RejectNegative Joined Var(s390_arch_string)
Generate code for given CPU
mbackchain
Target Report Mask(BACKCHAIN)
Maintain backchain pointer
mdebug
Target Report Mask(DEBUG_ARG)
Additional debug prints
mesa
Target Report RejectNegative InverseMask(ZARCH)
ESA/390 architecture
mfused-madd
Target Report Mask(FUSED_MADD)
Enable fused multiply/add instructions
mhard-float
Target Report RejectNegative Mask(HARD_FLOAT)
Use hardware fp
mlong-double-128
Target Report RejectNegative Mask(LONG_DOUBLE_128)
Use 128-bit long double
mlong-double-64
Target Report RejectNegative InverseMask(LONG_DOUBLE_128)
Use 64-bit long double
mpacked-stack
Target Report Mask(PACKED_STACK)
Use packed stack layout
msmall-exec
Target Report Mask(SMALL_EXEC)
Use bras for executable < 64k
msoft-float
Target Report RejectNegative InverseMask(HARD_FLOAT, SOFT_FLOAT)
Don't use hardware fp
mstack-guard=
Target RejectNegative Joined
Set the max. number of bytes which has to be left to stack size before a trap instruction is triggered
mstack-size=
Target RejectNegative Joined
Emit extra code in the function prologue in order to trap if the stack size exceeds the given limit
mtune=
Target RejectNegative Joined
Schedule code for given CPU
mmvcle
Target Report Mask(MVCLE)
mvcle use
mwarn-dynamicstack
Target RejectNegative Var(s390_warn_dynamicstack_p)
Warn if a function uses alloca or creates an array with dynamic size
mwarn-framesize=
Target RejectNegative Joined
Warn if a single function's framesize exceeds the given framesize
mzarch
Target Report RejectNegative Mask(ZARCH)
z/Architecture
|
