@samp{-Bstatic}, and the other two keywords are functionally equivalent
to @samp{-Bdynamic}. This option may be used any number of times.
+@kindex --audit @var{AUDITLIB}
+@item --audit @var{AUDITLIB}
+Adds @var{AUDITLIB} to the @code{DT_AUDIT} entry of the dynamic section.
+@var{AUDITLIB} is not checked for existence, nor will it use the DT_SONAME
+specified in the library. If specified multiple times @code{DT_AUDIT}
+will contain a colon separated list of audit interfaces to use. If the linker
+finds an object with an audit entry while searching for shared libraries,
+it will add a corresponding @code{DT_DEPAUDIT} entry in the output file.
+This option is only meaningful on ELF platforms supporting the rtld-audit
+interface.
+
@ifset I960
@cindex architectures
@kindex -A @var{arch}
script command @code{FORCE_COMMON_ALLOCATION} has the same effect.
@xref{Miscellaneous Commands}.
+@kindex --depaudit @var{AUDITLIB}
+@kindex -P @var{AUDITLIB}
+@item --depaudit @var{AUDITLIB}
+@itemx -P @var{AUDITLIB}
+Adds @var{AUDITLIB} to the @code{DT_DEPAUDIT} entry of the dynamic section.
+@var{AUDITLIB} is not checked for existence, nor will it use the DT_SONAME
+specified in the library. If specified multiple times @code{DT_DEPAUDIT}
+will contain a colon separated list of audit interfaces to use. This
+option is only meaningful on ELF platforms supporting the rtld-audit interface.
+The -P option is provided for Solaris compatibility.
+
@cindex entry point, from command line
@kindex -e @var{entry}
@kindex --entry=@var{entry}
Add the archive or object file specified by @var{namespec} to the
list of files to link. This option may be used any number of times.
If @var{namespec} is of the form @file{:@var{filename}}, @command{ld}
-will search the library path for a file called @var{filename}, otherise it
+will search the library path for a file called @var{filename}, otherwise it
will search the library path for a file called @file{lib@var{namespec}.a}.
On systems which support shared libraries, @command{ld} may also search for
of the linker script. It is not put into the output file. Program
header names are stored in a separate name space, and will not conflict
with symbol names, file names, or section names. Each program header
-must have a distinct name.
+must have a distinct name. The headers are processed in order and it
+is usual for them to map to sections in ascending load address order.
Certain program header types describe segments of memory which the
system loader will load from the file. In the linker script, you
@kindex FILEHDR
@kindex PHDRS
-You may use the @code{FILEHDR} and @code{PHDRS} keywords appear after
+You may use the @code{FILEHDR} and @code{PHDRS} keywords after
the program header type to further describe the contents of the segment.
The @code{FILEHDR} keyword means that the segment should include the ELF
file header. The @code{PHDRS} keyword means that the segment should
-include the ELF program headers themselves.
+include the ELF program headers themselves. If applied to a loadable
+segment (@code{PT_LOAD}), all prior loadable segments must have one of
+these keywords.
The @var{type} may be one of the following. The numbers indicate the
value of the keyword.
target subroutine is a leaf routine (that is, the target subroutine does
not itself call any subroutines).
+@cindex Cortex-A8 erratum workaround
+@kindex --fix-cortex-a8
+@kindex --no-fix-cortex-a8
+The @samp{--fix-cortex-a8} switch enables a link-time workaround for an erratum in certain Cortex-A8 processors. The workaround is enabled by default if you are targeting the ARM v7-A architecture profile. It can be enabled otherwise by specifying @samp{--fix-cortex-a8}, or disabled unconditionally by specifying @samp{--no-fix-cortex-a8}.
+
+The erratum only affects Thumb-2 code. Please contact ARM for further details.
+
@ifclear GENERIC
@lowersections
@end ifclear
@samp{--relax} enables the generation of trampolines that can access
the entire 32-bit address space. These trampolines are inserted at
section boundaries, so may not themselves be reachable if an input
-section exceeds 33M in size.
+section exceeds 33M in size. You may combine @samp{-r} and
+@samp{--relax} to add trampolines in a partial link. In that case
+both branches to undefined symbols and inter-section branches are also
+considered potentially out of range, and trampolines inserted.
@cindex PowerPC ELF32 options
@table @option
As a GNU extension, weak symbols that do not specify an alternate symbol
are supported. If the symbol is undefined when linking, the symbol
uses a default value.
+
+@cindex aligned common symbols
+@item aligned common symbols
+As a GNU extension to the PE file format, it is possible to specify the
+desired alignment for a common symbol. This information is conveyed from
+the assembler or compiler to the linker by means of GNU-specific commands
+carried in the object file's @samp{.drectve} section, which are recognized
+by @command{ld} and respected when laying out the common symbols. Native
+tools will be able to process object files employing this GNU extension,
+but will fail to respect the alignment instructions, and may issue noisy
+warnings about unknown linker directives.
@end table
@ifclear GENERIC
OSDN Git Service
