gcc/config/rs6000/sysv4.opt

   1 ; SYSV4 options for PPC port.
   2 ;
   3 ; Copyright (C) 2005-2021 Free Software Foundation, Inc.
   4 ; Contributed by Aldy Hernandez <aldy@quesejoda.com>.
   5 ;
   6 ; This file is part of GCC.
   7 ;
   8 ; GCC is free software; you can redistribute it and/or modify it under
   9 ; the terms of the GNU General Public License as published by the Free
  10 ; Software Foundation; either version 3, or (at your option) any later
  11 ; version.
  12 ;
  13 ; GCC is distributed in the hope that it will be useful, but WITHOUT
  14 ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15 ; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16 ; License for more details.
  17 ;
  18 ; You should have received a copy of the GNU General Public License
  19 ; along with GCC; see the file COPYING3.  If not see
  20 ; <http://www.gnu.org/licenses/>.
  21
  22 mcall-
  23 Target RejectNegative Joined Var(rs6000_abi_name)
  24 -mcall-ABI      Select ABI calling convention.
  25
  26 msdata=
  27 Target RejectNegative Joined Var(rs6000_sdata_name)
  28 -msdata=[none,data,sysv,eabi]   Select method for sdata handling.
  29
  30 mreadonly-in-sdata
  31 Target Var(rs6000_readonly_in_sdata) Init(1) Save
  32 Allow readonly data in sdata.
  33
  34 mtls-size=
  35 Target RejectNegative Joined Var(rs6000_tls_size) Enum(rs6000_tls_size)
  36 -mtls-size=[16,32]      Specify bit size of immediate TLS offsets.
  37
  38 Enum
  39 Name(rs6000_tls_size) Type(int)
  40
  41 EnumValue
  42 Enum(rs6000_tls_size) String(16) Value(16)
  43
  44 EnumValue
  45 Enum(rs6000_tls_size) String(32) Value(32)
  46
  47 EnumValue
  48 Enum(rs6000_tls_size) String(64) Value(64)
  49
  50 mbit-align
  51 Target Var(TARGET_NO_BITFIELD_TYPE) Save
  52 Align to the base type of the bit-field.
  53
  54 mstrict-align
  55 Target Mask(STRICT_ALIGN) Var(rs6000_isa_flags)
  56 Align to the base type of the bit-field.
  57 Don't assume that unaligned accesses are handled by the system.
  58
  59 mrelocatable
  60 Target Mask(RELOCATABLE) Var(rs6000_isa_flags)
  61 Produce code relocatable at runtime.
  62
  63 mrelocatable-lib
  64 Target
  65 Produce code relocatable at runtime.
  66
  67 mlittle-endian
  68 Target RejectNegative Mask(LITTLE_ENDIAN) Var(rs6000_isa_flags)
  69 Produce little endian code.
  70
  71 mlittle
  72 Target RejectNegative Mask(LITTLE_ENDIAN) Var(rs6000_isa_flags)
  73 Produce little endian code.
  74
  75 mbig-endian
  76 Target RejectNegative InverseMask(LITTLE_ENDIAN) Var(rs6000_isa_flags)
  77 Produce big endian code.
  78
  79 mbig
  80 Target RejectNegative InverseMask(LITTLE_ENDIAN) Var(rs6000_isa_flags)
  81 Produce big endian code.
  82
  83 ;; FIXME: This does nothing.  What should be done?
  84 mno-toc
  85 Target RejectNegative
  86 No description yet.
  87
  88 mtoc
  89 Target RejectNegative
  90 No description yet.
  91
  92 mprototype
  93 Target Var(target_prototype) Save
  94 Assume all variable arg functions are prototyped.
  95
  96 ;; FIXME: Does nothing.
  97 mno-traceback
  98 Target RejectNegative
  99 No description yet.
 100
 101 meabi
 102 Target Mask(EABI) Var(rs6000_isa_flags)
 103 Use EABI.
 104
 105 mbit-word
 106 Target Var(TARGET_NO_BITFIELD_WORD) Save
 107 Allow bit-fields to cross word boundaries.
 108
 109 mregnames
 110 Target Var(rs6000_regnames) Save
 111 Use alternate register names.
 112
 113 ;; This option does nothing and only exists because the compiler
 114 ;; driver passes all -m* options through.
 115 msdata
 116 Target
 117 Use default method for sdata handling.
 118
 119 msim
 120 Target RejectNegative
 121 Link with libsim.a, libc.a and sim-crt0.o.
 122
 123 mads
 124 Target RejectNegative
 125 Link with libads.a, libc.a and crt0.o.
 126
 127 myellowknife
 128 Target RejectNegative
 129 Link with libyk.a, libc.a and crt0.o.
 130
 131 mmvme
 132 Target RejectNegative
 133 Link with libmvme.a, libc.a and crt0.o.
 134
 135 memb
 136 Target RejectNegative
 137 Set the PPC_EMB bit in the ELF flags header.
 138
 139 mshlib
 140 Target RejectNegative
 141 No description yet.
 142
 143 m64
 144 Target RejectNegative Negative(m32) Mask(64BIT) Var(rs6000_isa_flags)
 145 Generate 64-bit code.
 146
 147 m32
 148 Target RejectNegative Negative(m64) InverseMask(64BIT) Var(rs6000_isa_flags)
 149 Generate 32-bit code.
 150
 151 mnewlib
 152 Target RejectNegative
 153 No description yet.
 154
 155 msecure-plt
 156 Target RejectNegative Var(secure_plt, 1) Save
 157 Generate code to use a non-exec PLT and GOT.
 158
 159 mbss-plt
 160 Target RejectNegative Var(secure_plt, 0) Save
 161 Generate code for old exec BSS PLT.
 162
 163 mpltseq
 164 Target Var(rs6000_pltseq) Init(1) Save
 165 Use inline plt sequences to implement long calls and -fno-plt.
 166
 167 mgnu-attribute
 168 Target Var(rs6000_gnu_attr) Init(1) Save
 169 Emit .gnu_attribute tags.