\input texinfo
@setfilename ld.info
-@c Copyright (C) 1991-2016 Free Software Foundation, Inc.
+@c Copyright (C) 1991-2017 Free Software Foundation, Inc.
@syncodeindex ky cp
@c man begin INCLUDE
@include configdoc.texi
@end ifset
version @value{VERSION}.
-Copyright @copyright{} 1991-2016 Free Software Foundation, Inc.
+Copyright @copyright{} 1991-2017 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
@vskip 0pt plus 1filll
@c man begin COPYRIGHT
-Copyright @copyright{} 1991-2016 Free Software Foundation, Inc.
+Copyright @copyright{} 1991-2017 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
no difference in the linker's behaviour for different non-zero values
of this option. Again this may change with future releases.
+@kindex -plugin @var{name}
+@item -plugin @var{name}
+Involve a plugin in the linking process. The @var{name} parameter is
+the absolute filename of the plugin. Usually this parameter is
+automatically added by the complier, when using link time
+optimization, but users can also add their own plugins if they so
+wish.
+
+Note that the location of the compiler originated plugins is different
+from the place where the @command{ar}, @command{nm} and
+@command{ranlib} programs search for their plugins. In order for
+those commands to make use of a compiler based plugin it must first be
+copied into the @file{$@{libdir@}/bfd-plugins} directory. All gcc
+based linker plugins are backward compatible, so it is sufficient to
+just copy in the newest one.
+
@kindex --push-state
@cindex push state governing input file handling
@item --push-state
be restored by specifying @samp{--no-print-gc-sections} on the command
line.
+@kindex --gc-keep-exported
+@cindex garbage collection
+@item --gc-keep-exported
+When @samp{--gc-sections} is enabled, this option prevents garbage
+collection of unused input sections that contain global symbols having
+default or protected visibility. This option is intended to be used for
+executables where unreferenced sections would otherwise be garbage
+collected regardless of the external visibility of contained symbols.
+Note that this option has no effect when linking shared objects since
+it is already the default behaviour. This option is only supported for
+ELF format targets.
+
@kindex --print-output-format
@cindex output format
@item --print-output-format
either by specifying a list of names separated by colons, or by
appearing multiple times.
+The tokens @var{$ORIGIN} and @var{$LIB} can appear in these search
+directories. They will be replaced by the full path to the directory
+containing the program or shared object in the case of @var{$ORIGIN}
+and either @samp{lib} - for 32-bit binaries - or @samp{lib64} - for
+64-bit binaries - in the case of @var{$LIB}.
+
+The alternative form of these tokens - @var{$@{ORIGIN@}} and
+@var{$@{LIB@}} can also be used. The token @var{$PLATFORM} is not
+supported.
+
This option should be used with caution as it overrides the search path
that may have been hard compiled into a shared library. In such a case it
is possible to use unintentionally a different search path than the
@c man begin OPTIONS
The following options are supported to control microMIPS instruction
-generation when linking for MIPS targets.
+generation and branch relocation checks for ISA mode transitions when
+linking for MIPS targets.
@table @gcctabopt
used, all instruction encodings are used, including 16-bit ones where
possible.
+@kindex --ignore-branch-isa
+@item --ignore-branch-isa
+@kindex --no-ignore-branch-isa
+@itemx --no-ignore-branch-isa
+These options control branch relocation checks for invalid ISA mode
+transitions. If @samp{--ignore-branch-isa} is used, then the linker
+accepts any branch relocations and any ISA mode transition required
+is lost in relocation calculation, except for some cases of @code{BAL}
+instructions which meet relaxation conditions and are converted to
+equivalent @code{JALX} instructions as the associated relocation is
+calculated. By default or if @samp{--no-ignore-branch-isa} is used
+a check is made causing the loss of an ISA mode transition to produce
+an error.
+
@end table
@c man end
@item @code{PT_PHDR} (6)
Indicates a segment where the program headers may be found.
+@item @code{PT_TLS} (7)
+Indicates a segment containing thread local storage.
+
@item @var{expression}
An expression giving the numeric type of the program header. This may
be used for types not defined above.
or if @samp{--no-insn32} is used, all instruction encodings are used,
including 16-bit ones where possible.
+@cindex MIPS branch relocation check control
+@kindex --ignore-branch-isa
+@kindex --no-ignore-branch-isa
+The @samp{--ignore-branch-isa} and @samp{--no-ignore-branch-isa} options
+control branch relocation checks for invalid ISA mode transitions. If
+@samp{--ignore-branch-isa} is used, then the linker accepts any branch
+relocations and any ISA mode transition required is lost in relocation
+calculation, except for some cases of @code{BAL} instructions which meet
+relaxation conditions and are converted to equivalent @code{JALX}
+instructions as the associated relocation is calculated. By default
+or if @samp{--no-ignore-branch-isa} is used a check is made causing
+the loss of an ISA mode transition to produce an error.
+
@ifclear GENERIC
@lowersections
@end ifclear
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