Allow symbol and label names to be enclosed in double quotes.

gas	PR gas/18581
	* expr.c (get_symbol_end): Rename to get_symbol_name.  Add a
	return parameter pointing to the start of the symbol.  Allow
	symbol names enclosed in double quotes.
	(restore_line_pointer): New function.  Replace the NUL character
	inserted into the input stream with the given character.  If the
	character was a double quote, advance the input pointer.
	* expr.h (get_symbol_end): Delete.
	(get_symbol_name): Add prototype.
	(restore_line_pointer): Prototype.
	* read.h (SKIP_WHITESPACE_AFTER_NAME): New macro.
	* doc/as.texinfo (Symbol Intro): Document that symbol names can
	now be enclosed in double quotes.
	* cond.c (s_ifdef): Replace get_symbol_end with get_symbol_name.
	Use restore_line_pointer to replace the NUL in the input stream.
	Use SKIP_WHITESPACE_AFTER_NAME to skip past the end of a symbol.
	Check for the use of double quoted symbol names.
	* expr.c: Likewise.
	* config/obj-aout.c: Likewise.
	* config/obj-coff-seh.c: Likewise.
	* config/obj-coff.c: Likewise.
	* config/obj-elf.c: Likewise.
	* config/obj-evax.c: Likewise.
	* config/obj-macho.c: Likewise.
	* config/obj-som.c: Likewise.
	* config/tc-alpha.c: Likewise.
	* config/tc-arc.c: Likewise.
	* config/tc-arm.c: Likewise.
	* config/tc-dlx.c: Likewise.
	* config/tc-h8300.c: Likewise.
	* config/tc-hppa.c: Likewise.
	* config/tc-i370.c: Likewise.
	* config/tc-i386-intel.c: Likewise.
	* config/tc-i386.c: Likewise.
	* config/tc-i960.c: Likewise.
	* config/tc-ia64.c: Likewise.
	* config/tc-iq2000.c: Likewise.
	* config/tc-m32r.c: Likewise.
	* config/tc-m68hc11.c: Likewise.
	* config/tc-m68k.c: Likewise.
	* config/tc-microblaze.c: Likewise.
	* config/tc-mips.c: Likewise.
	* config/tc-mmix.c: Likewise.
	* config/tc-mn10200.c: Likewise.
	* config/tc-mn10300.c: Likewise.
	* config/tc-nios2.c: Likewise.
	* config/tc-ppc.c: Likewise.
	* config/tc-s390.c: Likewise.
	* config/tc-score.c: Likewise.
	* config/tc-score7.c: Likewise.
	* config/tc-sparc.c: Likewise.
	* config/tc-tic4x.c: Likewise.
	* config/tc-tic54x.c: Likewise.
	* config/tc-tic6x.c: Likewise.
	* config/tc-tilegx.c: Likewise.
	* config/tc-tilepro.c: Likewise.
	* config/tc-v850.c: Likewise.
	* config/tc-xtensa.c: Likewise.
	* config/tc-z80.c: Likewise.
	* dw2gencfi.c: Likewise.
	* dwarf2dbgc.: Likewise.
	* ecoff.c: Likewise.
	* read.c: Likewise.
	* stabs.c: Likewise.

tests	PR gas/18581
	* gas/all/byte.d: Disable this test.  Quoted expressions
	are now allowed in .byte directives.
	* gas/all/quoted-sym-names.s: New test.
	* gas/all/quoted-sym-names.d: Expected output.
	* gas/all/gas.exp: Run the new test.

1 files changed, 6 insertions, 7 deletions

diff --git a/gas/dwarf2dbg.c b/gas/dwarf2dbg.c
index 07aa646..5bb6be0 100644
--- a/gas/dwarf2dbg.c
+++ b/gas/dwarf2dbg.c
@@ -670,8 +670,7 @@ dwarf2_directive_loc (int dummy ATTRIBUTE_UNUSED)
       char *p, c;
       offsetT value;
 
-      p = input_line_pointer;
-      c = get_symbol_end ();
+      c = get_symbol_name (& p);
 
       if (strcmp (p, "basic_block") == 0)
 	{
@@ -690,7 +689,7 @@ dwarf2_directive_loc (int dummy ATTRIBUTE_UNUSED)
 	}
       else if (strcmp (p, "is_stmt") == 0)
 	{
-	  *input_line_pointer = c;
+	  (void) restore_line_pointer (c);
 	  value = get_absolute_expression ();
 	  if (value == 0)
 	    current.flags &= ~DWARF2_FLAG_IS_STMT;
@@ -704,7 +703,7 @@ dwarf2_directive_loc (int dummy ATTRIBUTE_UNUSED)
 	}
       else if (strcmp (p, "isa") == 0)
 	{
-	  *input_line_pointer = c;
+	  (void) restore_line_pointer (c);
 	  value = get_absolute_expression ();
 	  if (value >= 0)
 	    current.isa = value;
@@ -716,7 +715,7 @@ dwarf2_directive_loc (int dummy ATTRIBUTE_UNUSED)
 	}
       else if (strcmp (p, "discriminator") == 0)
 	{
-	  *input_line_pointer = c;
+	  (void) restore_line_pointer (c);
 	  value = get_absolute_expression ();
 	  if (value >= 0)
 	    current.discriminator = value;
@@ -729,11 +728,11 @@ dwarf2_directive_loc (int dummy ATTRIBUTE_UNUSED)
       else
 	{
 	  as_bad (_("unknown .loc sub-directive `%s'"), p);
-	  *input_line_pointer = c;
+	  (void) restore_line_pointer (c);
 	  return;
 	}
 
-      SKIP_WHITESPACE ();
+      SKIP_WHITESPACE_AFTER_NAME ();
     }
 
   demand_empty_rest_of_line ();