diff options
Diffstat (limited to 'ld/ld.texinfo')
| -rw-r--r-- | ld/ld.texinfo | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/ld/ld.texinfo b/ld/ld.texinfo index b23d7c9..e4731c7 100644 --- a/ld/ld.texinfo +++ b/ld/ld.texinfo @@ -626,12 +626,11 @@ options. Multiple @samp{-T} options accumulate. @cindex undefined symbol @item -u @var{symbol} @itemx --undefined=@var{symbol} -Force @var{symbol} to be entered in the output file as an undefined symbol. -Doing this may, for example, trigger linking of additional modules from -standard libraries. @samp{-u} may be repeated with different option -arguments to enter additional undefined symbols. -@c Nice idea, but no such command: This option is equivalent -@c to the @code{EXTERN} linker command. +Force @var{symbol} to be entered in the output file as an undefined +symbol. Doing this may, for example, trigger linking of additional +modules from standard libraries. @samp{-u} may be repeated with +different option arguments to enter additional undefined symbols. This +option is equivalent to the @code{EXTERN} linker script command. @kindex -v @kindex -V @@ -1663,6 +1662,15 @@ command is also used to set the format for the output file. @xref{BFD}. There are a few other linker scripts commands. @table @code +@item EXTERN(@var{symbol} @var{symbol} @dots{}) +@kindex EXTERN +@cindex undefined symbol in linker script +Force @var{symbol} to be entered in the output file as an undefined +symbol. Doing this may, for example, trigger linking of additional +modules from standard libraries. You may list several @var{symbol}s for +each @code{EXTERN}, and you may use @code{EXTERN} multiple times. This +command has the same effect as the @samp{-u} command-line option. + @item FORCE_COMMON_ALLOCATION @kindex FORCE_COMMON_ALLOCATION @cindex common allocation in linker script |