Add a -mno-dollar-line-separator command line option to the AVR assembler.

Some frontends, like the gcc Objective-C frontend, emit symbols with $
characters in them.  The AVR target code in gas treats $ as a line separator,
so the code doesn?t assemble correctly.

Provide a machine-specific option to disable treating $ as a line separator.

	* config/tc-avr.c (enum options): Add option flag.
	(struct option): Add option -mno-dollar-line-separator.
	(md_parse_option): Adjust treatment of $ when option is present.
	* config/tc-avr.h: Use avr_line_separator_chars.

1 files changed, 8 insertions, 1 deletions

diff --git a/gas/doc/c-avr.texi b/gas/doc/c-avr.texi
index ab79739..f83cbe1 100644
--- a/gas/doc/c-avr.texi
+++ b/gas/doc/c-avr.texi
@@ -159,6 +159,12 @@ information.
 @item -mgcc-isr
 Enable the @code{__gcc_isr} pseudo instruction.
 
+@cindex @code{-mno-dollar-line-separator} command line option, AVR
+@item -mno-dollar-line-separator
+Do not treat the @code{$} character as a line separator character.
+This is for languages where @code{$} is valid character inside symbol
+names.
+
 @end table
 
 
@@ -189,7 +195,8 @@ control command (@pxref{Preprocessing}).
 @cindex AVR line separator
 
 The @samp{$} character can be used instead of a newline to separate
-statements.
+statements.  Note: the @option{-mno-dollar-line-separator} option
+disables this behaviour.
 
 @node AVR-Regs
 @subsection Register Names