diff options
Diffstat (limited to 'ld')
| -rw-r--r-- | ld/ChangeLog | 16 | ||||
| -rw-r--r-- | ld/ld.texinfo | 71 |
2 files changed, 78 insertions, 9 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog index 646644c..38a9f88 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,5 +1,21 @@ +Wed Oct 25 11:27:25 1995 Ian Lance Taylor <ian@cygnus.com> + + * ld.texinfo: The MRI ALIGN directive is supported. + +Mon Oct 23 11:46:43 1995 James G. Smith <jsmith@pasanda.cygnus.co.uk> + + * emulparams/elf32vr4300.sh: Deleted. + * emulparams/elf32vr4300el.sh: Deleted. + * emulparams/elf32b4300.sh: Added. + * emulparams/elf32l4300.sh: Added. + * configure.tgt, Makefile.in: Updated the build to use the + new 8.3 unique names. + Thu Oct 19 17:41:46 1995 Ian Lance Taylor <ian@cygnus.com> + * ldlang.c (entry_symbol): Make non-static. + * ldlang.h (entry_symbol): Declare. + * ldlex.l: Treat PROVIDE as a keyword in expression state. Wed Oct 18 17:34:06 1995 steve chamberlain <sac@slash.cygnus.com> diff --git a/ld/ld.texinfo b/ld/ld.texinfo index 33cc717..c10c52e 100644 --- a/ld/ld.texinfo +++ b/ld/ld.texinfo @@ -178,8 +178,9 @@ ld [ -o @var{output} ] @var{objfile}@dots{} [ -Map @var{mapfile} ] [ -m @var{emulation} ] [ -N | -n ] [ -noinhibit-exec ] [ -no-keep-memory ] [ -oformat @var{output-format} ] [ -R @var{filename} ] [ -relax ] [ -retain-symbols-file @var{filename} ] - [ -r | -Ur ] [ -rpath @var{dir} ] [ -S ] [ -s ] [ -soname @var{name} ] - [ -shared ] [ -sort-common ] [ -stats ] [ -T @var{commandfile} ] + [ -r | -Ur ] [ -rpath @var{dir} ] [-rpath-link @var{dir} ] + [ -S ] [ -s ] [ -soname @var{name} ] [ -shared ] + [ -sort-common ] [ -stats ] [ -T @var{commandfile} ] [ -Ttext @var{org} ] [ -Tdata @var{org} ] [ -Tbss @var{org} ] [ -t ] [ -traditional-format ] [ -u @var{symbol}] [-V] [-v] [ -verbose] [ -version ] @@ -467,9 +468,9 @@ at the point in which the linker script appears in the command line. @cindex link map @kindex -M @item -M -Print (to the standard output) a link map---diagnostic information -about where symbols are mapped by @code{ld}, and information on global -common storage allocation. +Print (to the standard output) a link map---diagnostic information about +where symbols are mapped by @code{ld}, and information on global common +storage allocation. @cindex link map @kindex -Map @@ -600,17 +601,62 @@ line. It overrides @samp{-s} and @samp{-S}. Add a directory to the runtime library search path. This is used when linking an ELF executable with shared objects. All @code{-rpath} arguments are concatenated and passed to the runtime linker, which uses -them to locate shared objects at runtime. +them to locate shared objects at runtime. The @code{-rpath} option is +also used when locating shared objects which are needed by shared +objects explicitly included in the link; see the description of the +@code{-rpath-link} option. The @code{-rpath} option may also be used on SunOS. By default, on SunOS, the linker will form a runtime search patch out of all the -@code{-L} options it is given. If a @code{rpath} option is used, the +@code{-L} options it is given. If a @code{-rpath} option is used, the runtime search path will be formed exclusively using the @code{-rpath} options, ignoring the @code{-L} options. This can be useful when using gcc, which adds many @code{-L} options which may be on NFS mounted filesystems. @end ifset +@ifset GENERIC +@cindex link-time runtime library search path +@kindex -rpath-link +@item -rpath-link @var{DIR} +When using ELF or SunOS, one shared library may require another. This +happens when an @code{ld -shared} link includes a shared library as one +of the input files. + +When the linker encounters such a dependency when doing a non-shared, +non-relocateable link, it will automatically try to locate the required +shared library and include it in the link, if it is not included +explicitly. In such a case, the @code{-rpath-link} option +specifies the first set of directories to search. The +@code{-rpath-link} option may specify a sequence of directory names +either by specifying a list of names separated by colons, or by +appearing multiple times. + +The linker uses the following search paths to locate required shared +libraries. +@enumerate +@item +Any directories specified by @code{-rpath-link} options. +@item +Any directories specified by @code{-rpath} options. The difference +between @code{-rpath} and @code{-rpath-link} is that directories +specified by @code{-rpath} options are included in the executable and +used at runtime, whereas the @code{-rpath-link} option is only effective +at link time. +@item +On SunOS, if the @code{-rpath} option was not used, search any +directories specified using @code{-L} options. +@item +For a native linker, the contents of the environment variable +@code{LD_LIBRARY_PATH}. +@item +The default directories, normally @file{/lib} and @file{/usr/lib}. +@end enumerate + +If the required shared library is not found, the linker will issue a +warning and continue with the link. +@end ifset + @cindex partial link @cindex relocatable output @kindex -r @@ -651,8 +697,10 @@ field rather than the using the file name given to the linker. @item -shared @cindex shared libraries @kindex -shared -Create a shared library. This is currently only supported on ELF -platforms. +Create a shared library. This is currently only supported on ELF and +SunOS platforms. On SunOS, the linker will automatically create a +shared library if the @code{-e} option is not used and there are +undefined symbols in the link. @item -sort-common @kindex -sort-common @@ -2441,6 +2489,11 @@ in a section called @var{out-secname} in the linker output file. @var{in-secname} may be an integer. +@cindex @code{ALIGN} (MRI) +@item ALIGN @var{secname} = @var{expression} +Align the section called @var{secname} to @var{expression}. The +@var{expression} should be a power of two. + @cindex @code{BASE} (MRI) @item BASE @var{expression} Use the value of @var{expression} as the lowest address (other than |