[binutils-gdb] PR28198, Support # as linker script comment marker

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=cc9faa98adc96788e6a560c685bbd8e69c856cb7

commit cc9faa98adc96788e6a560c685bbd8e69c856cb7
Author: Alan Modra <amodra@gmail.com>
Date:   Wed Aug 11 18:16:35 2021 +0930

    PR28198, Support # as linker script comment marker
    
            PR 28198
            * ldlex.l: Combine rules for handling newline, whitespace and
            comments.  Extend # comment handling to all states.

Diff:
---
 ld/ldlex.l | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/ld/ldlex.l b/ld/ldlex.l
index 25b4bcaae01..f588bd3adc5 100644
--- a/ld/ldlex.l
+++ b/ld/ldlex.l
@@ -420,8 +420,13 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 					yylval.name[len] = 0;
 					return NAME;
 				}
-<BOTH,SCRIPT,EXPRESSION>"\n"		{ lineno++;}
-<MRI,BOTH,SCRIPT,EXPRESSION>[ \t\r]+	{ }
+
+<BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>"\n" {
+				lineno++; }
+<MRI,BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[ \t\r]+ {
+				/* Eat up whitespace */ }
+<BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT>#.* {
+				/* Eat up comments */ }
 
 <VERS_NODE,VERS_SCRIPT>[:,;]	{ return *yytext; }
 
@@ -450,12 +455,6 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 				  return *yytext;
 				}
 
-<VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[\n]	{ lineno++; }
-
-<VERS_START,VERS_NODE,VERS_SCRIPT>#.*		{ /* Eat up comments */ }
-
-<VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[ \t\r]+	{ /* Eat up whitespace */ }
-
 <<EOF>> {
   include_stack_ptr--;
   if (include_stack_ptr == 0)