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jeremybenn |
; Options for the S/390 / zSeries port of the compiler.
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; Copyright (C) 2005, 2006, 2007, 2010, 2011 Free Software Foundation, Inc.
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;
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; This file is part of GCC.
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;
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; GCC is free software; you can redistribute it and/or modify it under
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; the terms of the GNU General Public License as published by the Free
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; Software Foundation; either version 3, or (at your option) any later
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; version.
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;
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; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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; WARRANTY; without even the implied warranty of MERCHANTABILITY or
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; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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; for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with GCC; see the file COPYING3. If not see
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; .
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HeaderInclude
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config/s390/s390-opts.h
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; The architecture name to use in diagnostics.
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Variable
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const char *s390_arch_string
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Variable
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int s390_tune_flags
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Variable
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int s390_arch_flags
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Variable
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HOST_WIDE_INT s390_warn_framesize = 0
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m31
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Target Report RejectNegative Negative(m64) InverseMask(64BIT)
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31 bit ABI
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m64
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Target Report RejectNegative Negative(m31) Mask(64BIT)
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64 bit ABI
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march=
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Target RejectNegative Joined Enum(processor_type) Var(s390_arch) Init(PROCESSOR_max)
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Generate code for given CPU
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Enum
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Name(processor_type) Type(enum processor_type)
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EnumValue
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Enum(processor_type) String(g5) Value(PROCESSOR_9672_G5)
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EnumValue
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Enum(processor_type) String(g6) Value(PROCESSOR_9672_G6)
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EnumValue
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Enum(processor_type) String(z900) Value(PROCESSOR_2064_Z900)
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EnumValue
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Enum(processor_type) String(z990) Value(PROCESSOR_2084_Z990)
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EnumValue
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Enum(processor_type) String(z9-109) Value(PROCESSOR_2094_Z9_109)
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EnumValue
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Enum(processor_type) String(z9-ec) Value(PROCESSOR_2094_Z9_EC)
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EnumValue
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Enum(processor_type) String(z10) Value(PROCESSOR_2097_Z10)
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EnumValue
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Enum(processor_type) String(z196) Value(PROCESSOR_2817_Z196)
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mbackchain
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Target Report Mask(BACKCHAIN)
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Maintain backchain pointer
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mdebug
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Target Report Mask(DEBUG_ARG)
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Additional debug prints
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mesa
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Target Report RejectNegative Negative(mzarch) InverseMask(ZARCH)
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ESA/390 architecture
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mhard-dfp
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Target Report Mask(HARD_DFP)
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Enable decimal floating point hardware support
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mhard-float
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Target Report RejectNegative Negative(msoft-float) InverseMask(SOFT_FLOAT, HARD_FLOAT)
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Enable hardware floating point
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mlong-double-128
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Target Report RejectNegative Negative(mlong-double-64) Mask(LONG_DOUBLE_128)
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Use 128-bit long double
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mlong-double-64
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Target Report RejectNegative Negative(mlong-double-128) InverseMask(LONG_DOUBLE_128)
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Use 64-bit long double
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mpacked-stack
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Target Report Mask(PACKED_STACK)
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Use packed stack layout
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msmall-exec
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Target Report Mask(SMALL_EXEC)
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Use bras for executable < 64k
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msoft-float
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Target Report RejectNegative Negative(mhard-float) Mask(SOFT_FLOAT)
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Disable hardware floating point
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mstack-guard=
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Target RejectNegative Joined UInteger Var(s390_stack_guard)
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Set the max. number of bytes which has to be left to stack size before a trap instruction is triggered
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mstack-size=
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Target RejectNegative Joined UInteger Var(s390_stack_size)
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Emit extra code in the function prologue in order to trap if the stack size exceeds the given limit
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mtune=
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Target RejectNegative Joined Enum(processor_type) Var(s390_tune) Init(PROCESSOR_max)
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Schedule code for given CPU
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mmvcle
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Target Report Mask(MVCLE)
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mvcle use
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mwarn-dynamicstack
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Target RejectNegative Var(s390_warn_dynamicstack_p)
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Warn if a function uses alloca or creates an array with dynamic size
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mwarn-framesize=
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Target RejectNegative Joined
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Warn if a single function's framesize exceeds the given framesize
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mzarch
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Target Report RejectNegative Negative(mesa) Mask(ZARCH)
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z/Architecture
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mbranch-cost=
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Target Report Joined RejectNegative UInteger Var(s390_branch_cost) Init(1)
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Set the branch costs for conditional branch instructions. Reasonable
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values are small, non-negative integers. The default branch cost is
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1.
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