@c to be limited to one line for the header.
@smallexample
@value{AS} [ -a[cdhlns][=file] ] [ -D ] [ --defsym @var{sym}=@var{val} ]
- [ -f ] [ --gstabs ] [ --help ] [ -I @var{dir} ] [ -J ] [ -K ] [ -L ]
+ [ -f ] [ --gstabs ] [ --gdwarf2 ] [ --help ] [ -I @var{dir} ] [ -J ] [ -K ] [ -L ]
[ --keep-locals ] [ -o @var{objfile} ] [ -R ] [ --statistics ] [ -v ]
- [ -version ] [ --version ] [ -W ] [ -w ] [ -x ] [ -Z ]
+ [ -version ] [ --version ] [ -W ] [ --warn ] [ --fatal-warnings ]
+ [ -w ] [ -x ] [ -Z ]
@ifset A29K
@c am29k has no machine-dependent assembler options
@end ifset
[ -mbig-endian | -mlittle-endian ]
@end ifset
@ifset ARM
- [ -m[arm]1 | -m[arm]2 | -m[arm]250 | -m[arm]3 | -m[arm]6 | -m[arm]7[t][[d]m[i]] ]
- [ -m[arm]v2 | -m[arm]v2a | -m[arm]v3 | -m[arm]v3m | -m[arm]v4 | -m[arm]v4t ]
+ [ -m[arm]1 | -m[arm]2 | -m[arm]250 | -m[arm]3 | -m[arm]6 | -m[arm]60 |
+ -m[arm]600 | -m[arm]610 | -m[arm]620 | -m[arm]7[t][[d]m[i]][fe] | -m[arm]70 |
+ -m[arm]700 | -m[arm]710[c] | -m[arm]7100 | -m[arm]7500 | -m[arm]8 |
+ -m[arm]810 | -m[arm]9 | -m[arm]920 | -m[arm]920t | -m[arm]9tdmi |
+ -mstrongarm | -mstrongarm110 | -mstrongarm1100 ]
+ [ -m[arm]v2 | -m[arm]v2a | -m[arm]v3 | -m[arm]v3m | -m[arm]v4 | -m[arm]v4t |
+ -m[arm]v5 | -[arm]v5t ]
[ -mthumb | -mall ]
[ -mfpa10 | -mfpa11 | -mfpe-old | -mno-fpu ]
[ -EB | -EL ]
- [ -mapcs-32 | -mapcs-26 ]
+ [ -mapcs-32 | -mapcs-26 | -mapcs-float | -mapcs-reentrant ]
+ [ -mthumb-interwork ]
+ [ -moabi ]
+ [ -k ]
@end ifset
@ifset D10V
[ -O ]
@ifset HPPA
@c HPPA has no machine-dependent assembler options (yet).
@end ifset
+@ifset PJ
+ [ -mb | -me ]
+@end ifset
@ifset SPARC
@c The order here is important. See c-sparc.texi.
[ -Av6 | -Av7 | -Av8 | -Asparclet | -Asparclite
Generate stabs debugging information for each assembler line. This
may help debugging assembler code, if the debugger can handle it.
+@item --gdwarf2
+Generate DWARF2 debugging information for each assembler line. This
+may help debugging assembler code, if the debugger can handle it.
+
@item --help
Print a summary of the command line options and exit.
Print the @code{as} version and exit.
@item -W
+@itemx --no-warn
Suppress warning messages.
+@item --fatal-warnings
+Treat warnings as errors.
+
+@item --warn
+Don't suppress warning messages or treat them as errors.
+
@item -w
Ignored.
processor family.
@table @code
-@item -m[arm]1 | -m[arm]2 | -m[arm]250 | -m[arm]3 | -m[arm]6 | -m[arm]7[t][[d]m] | -m[arm]v2 | -m[arm]v2a | -m[arm]v3 | -m[arm]v3m | -m[arm]v4 | -m[arm]v4t
-Specify which variant of the ARM architecture is the target.
+@item -m[arm][1|2|3|6|7|8|9][...]
+Specify which ARM processor variant is the target.
+@item -m[arm]v[2|2a|3|3m|4|4t|5|5t]
+Specify which ARM architecture variant is used by the target.
@item -mthumb | -mall
Enable or disable Thumb only instruction decoding.
@item -mfpa10 | -mfpa11 | -mfpe-old | -mno-fpu
Select which Floating Point architcture is the target.
-@item -mapcs-32 | -mapcs-26
+@item -mapcs-32 | -mapcs-26 | -mapcs-float | -mapcs-reentrant | -moabi
Select which procedure calling convention is in use.
@item -EB | -EL
Select either big-endian (-EB) or little-endian (-EL) output.
+@item -mthumb-interwork
+Specify that the code has been generated with interworking between Thumb and
+ARM code in mind.
+@item -k
+Specify that PIC code has been generated.
@end table
@end ifset
@end table
@end ifset
+@ifset PJ
+The following options are available when @value{AS} is configured for
+a picoJava processor.
+
+@table @code
+
+@cindex PJ endianness
+@cindex endianness, PJ
+@cindex big endian output, PJ
+@item -mb
+Generate ``big endian'' format output.
+
+@cindex little endian output, PJ
+@item -ml
+Generate ``little endian'' format output.
+
+@end table
+@end ifset
+
+
@ifset SPARC
The following options are available when @code{@value{AS}} is configured
for the SPARC architecture:
* statistics:: --statistics to see statistics about assembly
* traditional-format:: --traditional-format for compatible output
* v:: -v to announce version
-* W:: -W to suppress warnings
+* W:: -W, --no-warn, --warn, --fatal-warnings to control warnings
* Z:: -Z to make object file even after errors
@end menu
command line.
@node W
-@section Suppress Warnings: @code{-W}
+@section Control Warnings: @code{-W}, @code{--warn}, @code{--no-warn}, @code{--fatal-warnings}
-@kindex -W
-@cindex suppressing warnings
-@cindex warnings, suppressing
@code{@value{AS}} should never give a warning or error message when
assembling compiler output. But programs written by people often
cause @code{@value{AS}} to give a warning that a particular assumption was
made. All such warnings are directed to the standard error file.
-If you use this option, no warnings are issued. This option only
-affects the warning messages: it does not change any particular of how
-@code{@value{AS}} assembles your file. Errors, which stop the assembly, are
-still reported.
+
+@kindex @samp{-W}
+@kindex @samp{--no-warn}
+@cindex suppressing warnings
+@cindex warnings, suppressing
+If you use the @code{-W} and @code{--no-warn} options, no warnings are issued.
+This only affects the warning messages: it does not change any particular of
+how @code{@value{AS}} assembles your file. Errors, which stop the assembly,
+are still reported.
+
+@kindex @samp{--fatal-warnings}
+@cindex errors, caused by warnings
+@cindex warnings, causing error
+If you use the @code{--fatal-warnings} option, @code{@value{AS}} considers
+files that generate warnings to be in error.
+
+@kindex @samp{--warn}
+@cindex warnings, switching on
+You can switch these options off again by specifying @code{--warn}, which
+causes warnings to be output as usual.
@node Z
@section Generate Object File in Spite of Errors: @code{-Z}
@ifset ARC
@samp{;} on the ARC;
@end ifset
+@ifset ARM
+@samp{@@} on the ARM;
+@end ifset
@ifset H8/300
@samp{;} for the H8/300 family;
@end ifset
@ifset I960
@samp{#} on the i960;
@end ifset
+@ifset PJ
+@samp{;} for picoJava;
+@end ifset
@ifset SH
@samp{!} for the Hitachi SH;
@end ifset
* Double:: @code{.double @var{flonums}}
* Eject:: @code{.eject}
* Else:: @code{.else}
+* Elseif:: @code{.elseif}
* End:: @code{.end}
@ifset COFF
* Endef:: @code{.endef}
* Type:: @code{.type @var{int}}
* Val:: @code{.val @var{addr}}
@end ifset
+@ifset ELF
+* Visibility:: @code{.internal @var{name}, .hidden @var{name}, .protected @var{name}}
+@end ifset
* Uleb128:: @code{.uleb128 @var{expressions}}
* Word:: @code{.word @var{expressions}}
of code to be assembled if the condition for the preceding @code{.if}
was false.
+@node Elseif
+@section @code{.elseif}
+
+@cindex @code{elseif} directive
+@code{.elseif} is part of the @code{@value{AS}} support for conditional
+assembly; @pxref{If,,@code{.if}}. It is shorthand for beginning a new
+@code{.if} block that would otherwise fill the entire @code{.else} section.
+
@node End
@section @code{.end}
the conditional section of code must be marked by @code{.endif}
(@pxref{Endif,,@code{.endif}}); optionally, you may include code for the
alternative condition, flagged by @code{.else} (@pxref{Else,,@code{.else}}).
+If you have several conditions to check, @code{.elseif} may be used to avoid
+nesting blocks if/else within each subsequent @code{.else} block.
The following variants of @code{.if} are also supported:
@table @code
read-only section
@item x
executable section
+@item s
+shared section (meaningful for PE targets)
@end table
If no flags are specified, the default flags depend upon the section name. If
compact, variable length representation of numbers used by the DWARF
symbolic debugging format. @xref{Sleb128,@code{.sleb128}}.
+@ifset ELF
+@node Visibility
+@section @code{.internal}, @code{.hidden}, @code{.protected}
+@cindex @code{internal} directive
+@cindex @code{hidden} directive
+@cindex @code{protected} directive
+@cindex symbol visibility
+
+These directives can be used to set the visibility of a specified symbol. By
+default a symbol's visibility is set by its binding (local, global or weak),
+but these directives can be used to override that.
+
+A visibility of @code{protected} means that any references to the symbol from
+within the component that defines the symbol must be resolved to the definition
+in that component, even if a definition in another component would normally
+preempt this.
+
+A visibility of @code{hidden} means that the symbol is not visible to other
+components. Such a symbol is always considered to be protected as well.
+
+A visibility of @code{internal} is the same as a visibility of @code{hidden},
+except that some extra, processor specific processing must also be performed
+upon the symbol.
+
+For ELF targets, the directives are used like this:
+
+@smallexample
+.internal @var{name}
+.hidden @var{name}
+.protected @var{name}
+@end smallexample
+
+@end ifset
+
@node Word
@section @code{.word @var{expressions}}
@ifset SH
* SH-Dependent:: Hitachi SH Dependent Features
@end ifset
+@ifset PJ
+* PJ-Dependent:: picoJava Dependent Features
+@end ifset
@ifset SPARC
* Sparc-Dependent:: SPARC Dependent Features
@end ifset
@include c-ns32k.texi
@end ifset
+@ifset PJ
+@include c-pj.texi
+@end ifset
+
@ifset SH
@include c-sh.texi
@end ifset
projects / binutils.git / blobdiff