m68k: tag floating-point ABI used

[binutils-gdb.git] / gas / doc / as.texi

diff --git a/gas/doc/as.texi b/gas/doc/as.texi
index 0a6727ef848aaf357d2a7822b437a4c393baa562..ac4a073eab6e5e41d6575c597309a08ff44cf2f7 100644 (file)
--- a/gas/doc/as.texi
+++ b/gas/doc/as.texi
@@ -626,6 +626,7 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}.
  [@b{--[no-]transform}]
  [@b{--rename-section} @var{oldname}=@var{newname}]
  [@b{--[no-]trampolines}]
  [@b{--[no-]transform}]
  [@b{--rename-section} @var{oldname}=@var{newname}]
  [@b{--[no-]trampolines}]

+ [@b{--abi-windowed}|@b{--abi-call0}]

 @end ifset
 @ifset Z80
 
 @end ifset
 @ifset Z80
 


@@ -2842,8 +2843,9 @@ anything else you may get from your C compiler's preprocessor.  You can
 do include file processing with the @code{.include} directive
 (@pxref{Include,,@code{.include}}).  You can use the @sc{gnu} C compiler driver
 to get other ``CPP'' style preprocessing by giving the input file a
 do include file processing with the @code{.include} directive
 (@pxref{Include,,@code{.include}}).  You can use the @sc{gnu} C compiler driver
 to get other ``CPP'' style preprocessing by giving the input file a

-@samp{.S} suffix.  @xref{Overall Options, ,Options Controlling the Kind of
-Output, gcc info, Using GNU CC}.
+@samp{.S} suffix.  @url{https://gcc.gnu.org/onlinedocs/gcc/Overall-Options.html#Overall-Options,
+See the 'Options Controlling the Kind of Output' section of the GCC manual for
+more details}

 
 Excess whitespace, comments, and character constants
 cannot be used in the portions of the input text that are not
 
 Excess whitespace, comments, and character constants
 cannot be used in the portions of the input text that are not


@@ -4509,7 +4511,7 @@ Some machine configurations provide additional directives.
 * Struct::                     @code{.struct @var{expression}}
 @ifset ELF
 * SubSection::                  @code{.subsection}
 * Struct::                     @code{.struct @var{expression}}
 @ifset ELF
 * SubSection::                  @code{.subsection}

-* Symver::                      @code{.symver @var{name},@var{name2@@nodename}}
+* Symver::                      @code{.symver @var{name},@var{name2@@nodename}[,@var{visibility}]}

 @end ifset
 
 @ifset COFF
 @end ifset
 
 @ifset COFF


@@ -7112,9 +7114,9 @@ shared library.
 
 For ELF targets, the @code{.symver} directive can be used like this:
 @smallexample
 
 For ELF targets, the @code{.symver} directive can be used like this:
 @smallexample

-.symver @var{name}, @var{name2@@nodename}
+.symver @var{name}, @var{name2@@nodename}[ ,@var{visibility}]

 @end smallexample
 @end smallexample

-If the symbol @var{name} is defined within the file
+If the original symbol @var{name} is defined within the file

 being assembled, the @code{.symver} directive effectively creates a symbol
 alias with the name @var{name2@@nodename}, and in fact the main reason that we
 just don't try and create a regular alias is that the @var{@@} character isn't
 being assembled, the @code{.symver} directive effectively creates a symbol
 alias with the name @var{name2@@nodename}, and in fact the main reason that we
 just don't try and create a regular alias is that the @var{@@} character isn't


@@ -7127,7 +7129,14 @@ function is being mentioned.  The @var{nodename} portion of the alias should be
 the name of a node specified in the version script supplied to the linker when
 building a shared library.  If you are attempting to override a versioned
 symbol from a shared library, then @var{nodename} should correspond to the
 the name of a node specified in the version script supplied to the linker when
 building a shared library.  If you are attempting to override a versioned
 symbol from a shared library, then @var{nodename} should correspond to the

-nodename of the symbol you are trying to override.
+nodename of the symbol you are trying to override.  The optional argument
+@var{visibility} updates the visibility of the original symbol.  The valid
+visibilities are @code{local}, @code{hidden}, and @code{remove}.  The
+@code{local} visibility makes the original symbol a local symbol
+(@pxref{Local}).  The @code{hidden} visibility sets the visibility of the
+original symbol to @code{hidden} (@pxref{Hidden}).  The @code{remove}
+visibility removes the original symbol from the symbol table.  If visibility
+isn't specified, the original symbol is unchanged.

 
 If the symbol @var{name} is not defined within the file being assembled, all
 references to @var{name} will be changed to @var{name2@@nodename}.  If no
 
 If the symbol @var{name} is not defined within the file being assembled, all
 references to @var{name} will be changed to @var{name2@@nodename}.  If no


@@ -7574,6 +7583,22 @@ than 1, the file can only be processed by other toolchains under some private
 arrangement indicated by the flag value and the vendor name.
 @end table
 
 arrangement indicated by the flag value and the vendor name.
 @end table
 

+@subsection M680x0 Attributes
+
+@table @r
+@item Tag_GNU_M68K_ABI_FP (4)
+The floating-point ABI used by this object file.  The value will be:
+
+@itemize @bullet
+@item
+0 for files not affected by the floating-point ABI.
+@item
+1 for files using double-precision hardware floating-point ABI.
+@item
+2 for files using the software floating-point ABI.
+@end itemize
+@end table
+

 @subsection MIPS Attributes
 
 @table @r
 @subsection MIPS Attributes
 
 @table @r