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author | Sandra Loosemore <sandra@codesourcery.com> | 2009-02-24 20:44:45 -0500 |
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committer | Sandra Loosemore <sandra@gcc.gnu.org> | 2009-02-24 20:44:45 -0500 |
commit | a2fa6772d2be0384af8b91795afed92222d436ad (patch) | |
tree | ba04787445c6bbba14464d73e553971b9ff74b09 /gcc/doc | |
parent | c6fddadf2acaf3be7469874cfff5fb7b7d877bcd (diff) | |
download | gcc-a2fa6772d2be0384af8b91795afed92222d436ad.zip gcc-a2fa6772d2be0384af8b91795afed92222d436ad.tar.gz gcc-a2fa6772d2be0384af8b91795afed92222d436ad.tar.bz2 |
invoke.texi (Link Options): Document an easier way to pass options that take arguments to the GNU linker...
2009-02-24 Sandra Loosemore <sandra@codesourcery.com>
gcc/
* doc/invoke.texi (Link Options): Document an easier way to pass
options that take arguments to the GNU linker using -Xlinker and
-Wl.
From-SVN: r144423
Diffstat (limited to 'gcc/doc')
-rw-r--r-- | gcc/doc/invoke.texi | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index f12124c..75acf03 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -8042,17 +8042,28 @@ Pass @var{option} as an option to the linker. You can use this to supply system-specific linker options which GCC does not know how to recognize. -If you want to pass an option that takes an argument, you must use +If you want to pass an option that takes a separate argument, you must use @option{-Xlinker} twice, once for the option and once for the argument. For example, to pass @option{-assert definitions}, you must write @samp{-Xlinker -assert -Xlinker definitions}. It does not work to write @option{-Xlinker "-assert definitions"}, because this passes the entire string as a single argument, which is not what the linker expects. +When using the GNU linker, it is usually more convenient to pass +arguments to linker options using the @option{@var{option}=@var{value}} +syntax than as separate arguments. For example, you can specify +@samp{-Xlinker -Map=output.map} rather than +@samp{-Xlinker -Map -Xlinker output.map}. Other linkers may not support +this syntax for command-line options. + @item -Wl,@var{option} @opindex Wl Pass @var{option} as an option to the linker. If @var{option} contains -commas, it is split into multiple options at the commas. +commas, it is split into multiple options at the commas. You can use this +syntax to pass an argument to the option. +For example, @samp{-Wl,-Map,output.map} passes @samp{-Map output.map} to the +linker. When using the GNU linker, you can also get the same effect with +@samp{-Wl,-Map=output.map}. @item -u @var{symbol} @opindex u |