* ld.texinfo, ld.1: Document -Bstatic, -Bdynamic, -Bshared, and
-shared. Mon Jul 10 13:29:43 1995 Eric Youngdale <eric@aib.com> * ldmain.c (main): Set link_info.symbolic to false. * lexsup.c (parse_args): Handle -Bsymbolic.
This commit is contained in:
Ian Lance Taylor
parent
951fe66d62
commit
4551e108a0
5 changed files with 86 additions and 11 deletions
10
ld/ChangeLog
10
ld/ChangeLog
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@ -1,3 +1,13 @@
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Mon Jul 10 13:38:28 1995 Ian Lance Taylor <ian@cygnus.com>
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* ld.texinfo, ld.1: Document -Bstatic, -Bdynamic, -Bshared, and
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-shared.
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Mon Jul 10 13:29:43 1995 Eric Youngdale <eric@aib.com>
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* ldmain.c (main): Set link_info.symbolic to false.
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* lexsup.c (parse_args): Handle -Bsymbolic.
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Wed Jul 5 00:12:11 1995 Fred Fish (fnf@cygnus.com)
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* ldmain.c (HAVE_SBRK): Define for everything except
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28
ld/ld.1
28
ld/ld.1
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@ -28,6 +28,8 @@ ld \- the GNU linker
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.I input-format\c
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\&\|]
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.RB "[\|" \-Bstatic "\|]"
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.RB "[\|" \-Bdynamic "\|]"
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.RB "[\|" \-Bsymbolic "\|]"
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.RB "[\|" "\-c\ "\c
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.I commandfile\c
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\&\|]
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@ -82,6 +84,7 @@ ld \- the GNU linker
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.RB "[\|" \-r | \-Ur "\|]"
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.RB "[\|" \-S "\|]"
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.RB "[\|" \-s "\|]"
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.RB "[\|" \-shared "\|]"
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.RB "[\|" \-sort\-common "\|]"
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.RB "[\|" \-split\-by\-reloc\ "\c
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.I count\c
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@ -354,10 +357,22 @@ format from a script, using the command \c
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.TP
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.B \-Bstatic
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This flag is accepted for command-line compatibility with the SunOS linker,
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but has no effect on \c
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.B ld\c
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\&.
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Do not link against shared libraries. This is only meaningful on
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platforms for which shared libraries are supported.
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.TP
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.B \-Bdynamic
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Link against dynamic libraries. This is only meaningful on platforms
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for which shared libraries are supported. This option is normally the
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default on such platforms.
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.TP
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.B \-Bsymbolic
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When creating a shared library, bind references to global symbols to
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the definition within the shared library, if any. Normally, it is
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possible for a program linked against a shared library to override the
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definition within the shared library. This option is only meaningful
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on ELF platforms which support shared libraries.
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.TP
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.BI "\-c " "commandfile"\c
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@ -704,6 +719,11 @@ Omits debugger symbol information (but not all symbols) from the output file.
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.B \-s
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Omits all symbol information from the output file.
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.TP
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.B \-shared
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Create a shared library. This is currently only supported on ELF
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platforms.
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.TP
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.B \-sort\-common
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Normally, when
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@ -167,7 +167,8 @@ line:
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@c FIXME! -relax only avail h8/300, i960. Conditionals screwed in examples.
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@smallexample
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ld [ -o @var{output} ] @var{objfile}@dots{}
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[ -A@var{architecture} ] [ -b @var{input-format} ] [ -Bstatic ]
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[ -A@var{architecture} ] [ -b @var{input-format} ]
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[ -Bstatic ] [ -Bdynamic ] [ -Bsymbolic ]
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[ -c @var{MRI-commandfile} ] [ -d | -dc | -dp ]
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[ -defsym @var{symbol}=@var{expression} ]
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[ -dynamic-linker @var{file} ] [ -embedded-relocs ]
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@ -175,16 +176,16 @@ ld [ -o @var{output} ] @var{objfile}@dots{}
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[ -format @var{input-format} ] [ -g ] [ -G @var{size} ] [ -help ]
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[ -i ] [ -l@var{archive} ] [ -L@var{searchdir} ] [ -M ]
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[ -Map @var{mapfile} ] [ -m @var{emulation} ] [ -N | -n ]
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[ -noinhibit-exec ] [ -oformat @var{output-format} ]
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[ -noinhibit-exec ] [ -no-keep-memory ] [ -oformat @var{output-format} ]
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[ -R @var{filename} ] [ -relax ] [ -retain-symbols-file @var{filename} ]
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[ -r | -Ur ] [ -rpath @var{dir} ] [ -S ] [ -s ] [ -soname @var{name} ]
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[ -sort-common ] [ -stats ] [ -T @var{commandfile} ]
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[ -shared ] [ -sort-common ] [ -stats ] [ -T @var{commandfile} ]
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[ -Ttext @var{org} ] [ -Tdata @var{org} ]
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[ -Tbss @var{org} ] [ -t ] [ -traditional-format ]
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[ -u @var{symbol}] [-V] [-v] [ -verbose] [ -version ]
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[ -warn-common ] [ -warn-once ] [ -y @var{symbol} ] [ -X ] [-x ]
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[ -( [ archives ] -) ] [ --start-group [ archives ] --end-group ]
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[ -split-by-reloc @var{count} ] [-split-by-file]
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[ -split-by-reloc @var{count} ] [ -split-by-file ] [ --whole-archive ]
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@end smallexample
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This plethora of command-line options may seem intimidating, but in
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@ -308,8 +309,22 @@ Commands}.
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@kindex -Bstatic
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@item -Bstatic
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Do not link against shared libraries. This option is accepted for
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command-line compatibility with the SunOS linker.
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Do not link against shared libraries. This is only meaningful on
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platforms for which shared libraries are supported.
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@kindex -Bdynamic
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@item -Bdynamic
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Link against dynamic libraries. This is only meaningful on platforms
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for which shared libraries are supported. This option is normally the
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default on such platforms.
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@kindex -Bsymbolic
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@item -Bsymbolic
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When creating a shared library, bind references to global symbols to the
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definition within the shared library, if any. Normally, it is possible
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for a program linked against a shared library to override the definition
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within the shared library. This option is only meaningful on ELF
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platforms which support shared libraries.
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@kindex -c @var{MRI-cmdfile}
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@cindex compatibility, MRI
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@ -488,6 +503,15 @@ Normally, the linker will not produce an output file if it encounters
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errors during the link process; it exits without writing an output file
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when it issues any error whatsoever.
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@item -no-keep-memory
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@cindex memory usage
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@kindex -no-keep-memory
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@code{ld} normally optimizes for speed over memory usage by caching the
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symbol tables of input files in memory. This option tells @code{ld} to
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instead optimize for memory usage, by rereading the symbol tables as
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necessary. This may be required if @code{ld} runs out of memory space
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while linking a large executable.
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@item -o @var{output}
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@kindex -o @var{output}
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@cindex naming the output file
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@ -610,7 +634,14 @@ linker will attempt to load the shared object specified by the DT_SONAME
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field rather than the using the file name given to the linker.
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@end ifset
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@item -shared
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@cindex shared libraries
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@kindex -shared
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Create a shared library. This is currently only supported on ELF
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platforms.
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@item -sort-common
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@kindex -sort-common
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Normally, when @code{ld} places the global common symbols in the
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appropriate output sections, it sorts them by size. First come all the
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one byte symbols, then all the two bytes, then all the four bytes, and
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@ -816,6 +847,14 @@ encountered in a different order.
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Only warn once for each undefined symbol, rather than once per module
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which refers to it.
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@kindex --whole-archive
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@cindex including an entire archive
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For each archive mentioned on the command line, include every object
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file in the archive in the link, rather than searching the archive for
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the required object files. This is normally used to turn an archive
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file into a shared library, forcing every object to be included in the
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resulting shared library.
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@kindex -X
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@cindex local symbols, deleting
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@cindex L, deleting symbols beginning
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@ -180,6 +180,7 @@ main (argc, argv)
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link_info.callbacks = &link_callbacks;
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link_info.relocateable = false;
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link_info.shared = false;
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link_info.symbolic = false;
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link_info.strip = strip_none;
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link_info.discard = discard_none;
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link_info.lprefix_len = 1;
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@ -93,7 +93,8 @@ parse_args (argc, argv)
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#define OPTION_STACK (OPTION_SORT_COMMON + 1) /*WINDOWS_NT*/
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#define OPTION_STATS (OPTION_STACK + 1)
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#define OPTION_SUBSYSTEM (OPTION_STATS + 1) /* WINDOWS_NT */
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#define OPTION_TBSS (OPTION_SUBSYSTEM + 1)
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#define OPTION_SYMBOLIC (OPTION_SUBSYSTEM + 1)
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#define OPTION_TBSS (OPTION_SYMBOLIC + 1)
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#define OPTION_TDATA (OPTION_TBSS + 1)
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#define OPTION_TTEXT (OPTION_TDATA + 1)
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#define OPTION_TRADITIONAL_FORMAT (OPTION_TTEXT + 1)
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@ -109,6 +110,7 @@ parse_args (argc, argv)
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static struct option longopts[] = {
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{"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
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{"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
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{"Bsymbolic", no_argument, NULL, OPTION_SYMBOLIC},
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{"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
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{"dc", no_argument, NULL, 'd'},
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{"defsym", required_argument, NULL, OPTION_DEFSYM},
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@ -394,6 +396,9 @@ parse_args (argc, argv)
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case OPTION_SUBSYSTEM: /* WINDOWS_NT */
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set_subsystem (optarg);
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break;
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case OPTION_SYMBOLIC:
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link_info.symbolic = true;
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break;
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case 't':
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trace_files = true;
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break;
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