\input texinfo @c -*-Texinfo-*-
-@c Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-@c 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
-@c Free Software Foundation, Inc.
+@c Copyright (C) 1991-2014 Free Software Foundation, Inc.
@c UPDATE!! On future updates--
@c (1) check for new machine-dep cmdline options in
@c md_parse_option definitions in config/tc-*.c
This file documents the GNU Assembler "@value{AS}".
@c man begin COPYRIGHT
-Copyright @copyright{} 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-2000, 2001, 2002, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation,
-Inc.
+Copyright @copyright{} 1991-2014 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3
@end tex
@vskip 0pt plus 1filll
-Copyright @copyright{} 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-2000, 2001, 2002, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation,
-Inc.
+Copyright @copyright{} 1991-2014 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3
[@b{--compress-debug-sections}] [@b{--nocompress-debug-sections}]
[@b{--debug-prefix-map} @var{old}=@var{new}]
[@b{--defsym} @var{sym}=@var{val}] [@b{-f}] [@b{-g}] [@b{--gstabs}]
- [@b{--gstabs+}] [@b{--gdwarf-2}] [@b{--help}] [@b{-I} @var{dir}] [@b{-J}]
+ [@b{--gstabs+}] [@b{--gdwarf-2}] [@b{--gdwarf-sections}]
+ [@b{--help}] [@b{-I} @var{dir}] [@b{-J}]
[@b{-K}] [@b{-L}] [@b{--listing-lhs-width}=@var{NUM}]
[@b{--listing-lhs-width2}=@var{NUM}] [@b{--listing-rhs-width}=@var{NUM}]
[@b{--listing-cont-lines}=@var{NUM}] [@b{--keep-locals}] [@b{-o}
@emph{Target AArch64 options:}
[@b{-EB}|@b{-EL}]
+ [@b{-mabi}=@var{ABI}]
@end ifset
@ifset ALPHA
[@b{-jsri2bsr}] [@b{-sifilter}] [@b{-relax}]
[@b{-mcpu=[210|340]}]
@end ifset
+@ifset METAG
+
+@emph{Target Meta options:}
+ [@b{-mcpu=@var{cpu}}] [@b{-mfpu=@var{cpu}}] [@b{-mdsp=@var{cpu}}]
+@end ifset
@ifset MICROBLAZE
@emph{Target MICROBLAZE options:}
@c MicroBlaze has no machine-dependent assembler options.
[@b{-mips3}] [@b{-mips4}] [@b{-mips5}] [@b{-mips32}] [@b{-mips32r2}]
[@b{-mips64}] [@b{-mips64r2}]
[@b{-construct-floats}] [@b{-no-construct-floats}]
+ [@b{-mnan=@var{encoding}}]
[@b{-trap}] [@b{-no-break}] [@b{-break}] [@b{-no-trap}]
[@b{-mips16}] [@b{-no-mips16}]
[@b{-mmicromips}] [@b{-mno-micromips}]
[@b{-mdmx}] [@b{-no-mdmx}]
[@b{-mdsp}] [@b{-mno-dsp}]
[@b{-mdspr2}] [@b{-mno-dspr2}]
+ [@b{-mmsa}] [@b{-mno-msa}]
[@b{-mmt}] [@b{-mno-mt}]
[@b{-mmcu}] [@b{-mno-mcu}]
+ [@b{-minsn32}] [@b{-mno-insn32}]
[@b{-mfix7000}] [@b{-mno-fix7000}]
+ [@b{-mfix-rm7000}] [@b{-mno-fix-rm7000}]
[@b{-mfix-vr4120}] [@b{-mno-fix-vr4120}]
[@b{-mfix-vr4130}] [@b{-mno-fix-vr4130}]
[@b{-mdebug}] [@b{-no-mdebug}]
[@b{--no-expand}] [@b{--no-merge-gregs}] [@b{-x}]
[@b{--linker-allocated-gregs}]
@end ifset
+@ifset NIOSII
+
+@emph{Target Nios II options:}
+ [@b{-relax-all}] [@b{-relax-section}] [@b{-no-relax}]
+ [@b{-EB}] [@b{-EL}]
+@end ifset
+@ifset NDS32
+
+@emph{Target NDS32 options:}
+ [@b{-EL}] [@b{-EB}] [@b{-O}] [@b{-Os}] [@b{-mcpu=@var{cpu}}]
+ [@b{-misa=@var{isa}}] [@b{-mabi=@var{abi}}] [@b{-mall-ext}]
+ [@b{-m[no-]16-bit}] [@b{-m[no-]perf-ext}] [@b{-m[no-]perf2-ext}]
+ [@b{-m[no-]string-ext}] [@b{-m[no-]dsp-ext}] [@b{-m[no-]mac}] [@b{-m[no-]div}]
+ [@b{-m[no-]audio-isa-ext}] [@b{-m[no-]fpu-sp-ext}] [@b{-m[no-]fpu-dp-ext}]
+ [@b{-m[no-]fpu-fma}] [@b{-mfpu-freg=@var{FREG}}] [@b{-mreduced-regs}]
+ [@b{-mfull-regs}] [@b{-m[no-]dx-regs}] [@b{-mpic}] [@b{-mno-relax}]
+ [@b{-mb2bb}]
+@end ifset
@ifset PDP11
@emph{Target PDP11 options:}
[@b{-mpwrx}|@b{-mpwr2}|@b{-mpwr}|@b{-m601}|@b{-mppc}|@b{-mppc32}|@b{-m603}|@b{-m604}|@b{-m403}|@b{-m405}|
@b{-m440}|@b{-m464}|@b{-m476}|@b{-m7400}|@b{-m7410}|@b{-m7450}|@b{-m7455}|@b{-m750cl}|@b{-mppc64}|
@b{-m620}|@b{-me500}|@b{-e500x2}|@b{-me500mc}|@b{-me500mc64}|@b{-me5500}|@b{-me6500}|@b{-mppc64bridge}|
- @b{-mbooke}|@b{-mpower4}|@b{-mpr4}|@b{-mpower5}|@b{-mpwr5}|@b{-mpwr5x}|@b{-mpower6}|@b{-mpwr6}|
- @b{-mpower7}|@b{-mpw7}|@b{-ma2}|@b{-mcell}|@b{-mspe}|@b{-mtitan}|@b{-me300}|@b{-mvle}|@b{-mcom}]
- [@b{-many}] [@b{-maltivec}|@b{-mvsx}]
+ @b{-mbooke}|@b{-mpower4}|@b{-mpwr4}|@b{-mpower5}|@b{-mpwr5}|@b{-mpwr5x}|@b{-mpower6}|@b{-mpwr6}|
+ @b{-mpower7}|@b{-mpwr7}|@b{-mpower8}|@b{-mpwr8}|@b{-ma2}|@b{-mcell}|@b{-mspe}|@b{-mtitan}|@b{-me300}|@b{-mcom}]
+ [@b{-many}] [@b{-maltivec}|@b{-mvsx}|@b{-mhtm}|@b{-mvle}]
[@b{-mregnames}|@b{-mno-regnames}]
[@b{-mrelocatable}|@b{-mrelocatable-lib}|@b{-K PIC}] [@b{-memb}]
[@b{-mlittle}|@b{-mlittle-endian}|@b{-le}|@b{-mbig}|@b{-mbig-endian}|@b{-be}]
@emph{Target RX options:}
[@b{-mlittle-endian}|@b{-mbig-endian}]
- [@b{-m32bit-ints}|@b{-m16bit-ints}]
[@b{-m32bit-doubles}|@b{-m64bit-doubles}]
+ [@b{-muse-conventional-section-names}]
+ [@b{-msmall-data-limit}]
+ [@b{-mpid}]
+ [@b{-mrelax}]
+ [@b{-mint-register=@var{number}}]
+ [@b{-mgcc-abi}|@b{-mrx-abi}]
@end ifset
@ifset S390
[@b{--[no-]target-align}] [@b{--[no-]longcalls}]
[@b{--[no-]transform}]
[@b{--rename-section} @var{oldname}=@var{newname}]
+ [@b{--[no-]trampolines}]
@end ifset
@ifset Z80
may help debugging assembler code, if the debugger can handle it. Note---this
option is only supported by some targets, not all of them.
+@item --gdwarf-sections
+Instead of creating a .debug_line section, create a series of
+.debug_line.@var{foo} sections where @var{foo} is the name of the
+corresponding code section. For example a code section called @var{.text.func}
+will have its dwarf line number information placed into a section called
+@var{.debug_line.text.func}. If the code section is just called @var{.text}
+then debug line section will still be called just @var{.debug_line} without any
+suffix.
+
@item --size-check=error
@itemx --size-check=warning
Issue an error or warning for invalid ELF .size directive.
@item -mthumb-interwork
Specify that the code has been generated with interworking between Thumb and
ARM code in mind.
+@item -mccs
+Turns on CodeComposer Studio assembly syntax compatibility mode.
@item -k
Specify that PIC code has been generated.
@end table
@end ifset
+@ifset H8300
+
+@ifclear man
+@xref{H8/300 Options}, for the options available when @value{AS} is configured
+for an H8/300 processor.
+@end ifclear
+
+@ifset man
+@c man begin OPTIONS
+The following options are available when @value{AS} is configured for an H8/300
+processor.
+@c man end
+@c man begin INCLUDE
+@include c-h8300.texi
+@c ended inside the included file
+@end ifset
+
+@end ifset
+
@ifset I80386
@ifclear man
@end table
@end ifset
+@ifset NIOSII
+
+@ifclear man
+@xref{Nios II Options}, for the options available when @value{AS} is configured
+for an Altera Nios II processor.
+@end ifclear
+
+@ifset man
+@c man begin OPTIONS
+The following options are available when @value{AS} is configured for an
+Altera Nios II processor.
+@c man end
+@c man begin INCLUDE
+@include c-nios2.texi
+@c ended inside the included file
+@end ifset
+@end ifset
+
@ifset PDP11
For details about the PDP-11 machine dependent features options,
@ifset MIPS
The following options are available when @value{AS} is configured for
-a @sc{mips} processor.
+a MIPS processor.
@table @gcctabopt
@item -G @var{num}
@itemx -mips32r2
@itemx -mips64
@itemx -mips64r2
-Generate code for a particular @sc{mips} Instruction Set Architecture level.
+Generate code for a particular MIPS Instruction Set Architecture level.
@samp{-mips1} is an alias for @samp{-march=r3000}, @samp{-mips2} is an
alias for @samp{-march=r6000}, @samp{-mips3} is an alias for
@samp{-march=r4000} and @samp{-mips4} is an alias for @samp{-march=r8000}.
@samp{-mips5}, @samp{-mips32}, @samp{-mips32r2}, @samp{-mips64}, and
-@samp{-mips64r2}
-correspond to generic
-@samp{MIPS V}, @samp{MIPS32}, @samp{MIPS32 Release 2}, @samp{MIPS64},
-and @samp{MIPS64 Release 2}
-ISA processors, respectively.
+@samp{-mips64r2} correspond to generic MIPS V, MIPS32, MIPS32 Release 2,
+MIPS64, and MIPS64 Release 2 ISA processors, respectively.
-@item -march=@var{CPU}
-Generate code for a particular @sc{mips} cpu.
+@item -march=@var{cpu}
+Generate code for a particular MIPS CPU.
@item -mtune=@var{cpu}
-Schedule and tune for a particular @sc{mips} cpu.
+Schedule and tune for a particular MIPS CPU.
@item -mfix7000
@itemx -mno-fix7000
Cause nops to be inserted if the read of the destination register
of an mfhi or mflo instruction occurs in the following two instructions.
+@item -mfix-rm7000
+@itemx -mno-fix-rm7000
+Cause nops to be inserted if a dmult or dmultu instruction is
+followed by a load instruction.
+
@item -mdebug
@itemx -no-mdebug
Cause stabs-style debugging output to go into an ECOFF-style .mdebug
This tells the assembler to accept DSP Release 2 instructions.
@samp{-mno-dspr2} turns off this option.
+@item -mmsa
+@itemx -mno-msa
+Generate code for the MIPS SIMD Architecture Extension.
+This tells the assembler to accept MSA instructions.
+@samp{-mno-msa} turns off this option.
+
@item -mmt
@itemx -mno-mt
Generate code for the MT Application Specific Extension.
This tells the assembler to accept MCU instructions.
@samp{-mno-mcu} turns off this option.
+@item -minsn32
+@itemx -mno-insn32
+Only use 32-bit instruction encodings when generating code for the
+microMIPS processor. This option inhibits the use of any 16-bit
+instructions. This is equivalent to putting @code{.set insn32} at
+the start of the assembly file. @samp{-mno-insn32} turns off this
+option. This is equivalent to putting @code{.set noinsn32} at the
+start of the assembly file. By default @samp{-mno-insn32} is
+selected, allowing all instructions to be used.
+
@item --construct-floats
@itemx --no-construct-floats
The @samp{--no-construct-floats} option disables the construction of
the double width register. By default @samp{--construct-floats} is
selected, allowing construction of these floating point constants.
+@item --relax-branch
+@itemx --no-relax-branch
+The @samp{--relax-branch} option enables the relaxation of out-of-range
+branches. By default @samp{--no-relax-branch} is selected, causing any
+out-of-range branches to produce an error.
+
+@item -mnan=@var{encoding}
+Select between the IEEE 754-2008 (@option{-mnan=2008}) or the legacy
+(@option{-mnan=legacy}) NaN encoding format. The latter is the default.
+
@cindex emulation
@item --emulation=@var{name}
-This option causes @command{@value{AS}} to emulate @command{@value{AS}} configured
-for some other target, in all respects, including output format (choosing
-between ELF and ECOFF only), handling of pseudo-opcodes which may generate
-debugging information or store symbol table information, and default
-endianness. The available configuration names are: @samp{mipsecoff},
-@samp{mipself}, @samp{mipslecoff}, @samp{mipsbecoff}, @samp{mipslelf},
-@samp{mipsbelf}. The first two do not alter the default endianness from that
-of the primary target for which the assembler was configured; the others change
-the default to little- or big-endian as indicated by the @samp{b} or @samp{l}
-in the name. Using @samp{-EB} or @samp{-EL} will override the endianness
-selection in any case.
-
-This option is currently supported only when the primary target
-@command{@value{AS}} is configured for is a @sc{mips} ELF or ECOFF target.
-Furthermore, the primary target or others specified with
-@samp{--enable-targets=@dots{}} at configuration time must include support for
-the other format, if both are to be available. For example, the Irix 5
-configuration includes support for both.
-
-Eventually, this option will support more configurations, with more
-fine-grained control over the assembler's behavior, and will be supported for
-more processors.
+This option was formerly used to switch between ELF and ECOFF output
+on targets like IRIX 5 that supported both. MIPS ECOFF support was
+removed in GAS 2.24, so the option now serves little purpose.
+It is retained for backwards compatibility.
+
+The available configuration names are: @samp{mipself}, @samp{mipslelf} and
+@samp{mipsbelf}. Choosing @samp{mipself} now has no effect, since the output
+is always ELF. @samp{mipslelf} and @samp{mipsbelf} select little- and
+big-endian output respectively, but @samp{-EL} and @samp{-EB} are now the
+preferred options instead.
@item -nocpp
@command{@value{AS}} ignores this option. It is accepted for compatibility with
Assemble for a little endian target.
@end table
+@end ifset
+@c man end
+
+@ifset METAG
+
+@ifclear man
+@xref{Meta Options}, for the options available when @value{AS} is configured
+for a Meta processor.
+@end ifclear
+
+@ifset man
+@c man begin OPTIONS
+The following options are available when @value{AS} is configured for a
+Meta processor.
+@c man end
+@c man begin INCLUDE
+@include c-metag.texi
+@c ended inside the included file
+@end ifset
+
@end ifset
+@c man begin OPTIONS
@ifset MMIX
See the info pages for documentation of the MMIX-specific options.
@end ifset
+@ifset NDS32
+
+@ifclear man
+@xref{NDS32 Options}, for the options available when @value{AS} is configured
+for a NDS32 processor.
+@end ifclear
+@c ended inside the included file
+@end ifset
+
+@ifset man
+@c man begin OPTIONS
+The following options are available when @value{AS} is configured for a
+NDS32 processor.
+@c man end
+@c man begin INCLUDE
+@include c-nds32.texi
+@c ended inside the included file
+@end ifset
+
@c man end
@ifset PPC
with no-op instructions when appropriate.
The way the required alignment is specified varies from system to system.
-For the arc, hppa, i386 using ELF, i860, iq2000, m68k, or32,
+For the arc, hppa, i386 using ELF, i860, iq2000, m68k, or1k,
s390, sparc, tic4x, tic80 and xtensa, the first expression is the
alignment request in bytes. For example @samp{.align 8} advances
the location counter until it is a multiple of 8. If the location counter
writable section
@item d
data section
+@item e
+exclude section from linking
@item r
read-only section
@item x
@ifset M68HC11
* M68HC11-Dependent:: M68HC11 and 68HC12 Dependent Features
@end ifset
+@ifset METAG
+* Meta-Dependent :: Meta Dependent Features
+@end ifset
@ifset MICROBLAZE
* MicroBlaze-Dependent:: MICROBLAZE Dependent Features
@end ifset
@ifset MSP430
* MSP430-Dependent:: MSP430 Dependent Features
@end ifset
+@ifset NDS32
+* NDS32-Dependent:: Andes NDS32 Dependent Features
+@end ifset
+@ifset NIOSII
+* NiosII-Dependent:: Altera Nios II Dependent Features
+@end ifset
@ifset NS32K
* NS32K-Dependent:: NS32K Dependent Features
@end ifset
@include c-m68hc11.texi
@end ifset
+@ifset METAG
+@include c-metag.texi
+@end ifset
+
@ifset MICROBLAZE
@include c-microblaze.texi
@end ifset
@include c-msp430.texi
@end ifset
+@ifset NDS32
+@include c-nds32.texi
+@end ifset
+
+@ifset NIOSII
+@include c-nios2.texi
+@end ifset
+
@ifset NS32K
@include c-ns32k.texi
@end ifset
If you have contributed to GAS and your name isn't listed here,
it is not meant as a slight. We just don't know about it. Send mail to the
maintainer, and we'll correct the situation. Currently
-@c (January 1994),
-the maintainer is Ken Raeburn (email address @code{raeburn@@cygnus.com}).
+@c (October 2012),
+the maintainer is Nick Clifton (email address @code{nickc@@redhat.com}).
Dean Elsner wrote the original @sc{gnu} assembler for the VAX.@footnote{Any
more details?}
projects / thirdparty / binutils-gdb.git / blobdiff