A series of fixes to addres problems detected by compiling the assembler with address sanitization enabled.

	PR 24538
gas	* macro.c (get_any_string): Increase size of buffer used to hold
	decimal value of expression result.
	* dw2gencfi.c (get_debugseg_name): Handle an empty name.
	* dwarf2dbg.c (get_filenum): Catch integer wraparound when
	extending allocate file array.
	(dwarf2_directive_filename): Add extra checks of the computed file
	number.
	* config/tc-arm.c (arm_tc_equal_in_insn): Insert copy of name into
	warning hash table.
	(s_arm_eabi_attribute): Check for obj_elf_vendor_attribute
	returning -1.
	* config/tc-i386.c (i386_output_nops): Catch an attempt to
	generate nops of negative lengths.
	* as.h (MAX_LITTLENUMS): Move definition to here from...
	* config/atof-ieee.c: ...here.
	* config/tc-aarch64.c: ...here.
	* config/tc-arc.c: ...here.
	* config/tc-arm.c: ...here.
	* config/tc-epiphany.c: ...here.
	* config/tc-i386.c: ...here.
	* config/tc-ia64.c: ...here.  (And correct the value).
	* config/tc-m32c.c: ...here.
	* config/tc-m32r.c: ...here.
	* config/tc-metag.c: ...here.
	* config/tc-microblaze.c: ...here.
	* config/tc-nds32.c: ...here.
	* config/tc-or1k.c: ...here.
	* config/tc-score.c: ...here.
	* config/tc-score7.c: ...here.
	* config/tc-tic4x.c: ...here.
	* config/tc-tilegx.c: ...here.
	* config/tc-tilepro.c: ...here.
	* config/tc-visium.c: ...here.
	* config/tc-sh.c (md_assemble): Add check for an instruction with
	no opcodes.
	* config/tc-mips.c (mips_lookup_insn): Add check for very short
	instruction name.
	* config/tc-tic54x.c: Use unsigned chars to access is_end_of_line
	array.
	(tic54x_start_line_hook): Check for an empty line.
	(next_line_shows_parallel): Do not walk off the end of the string.
	(tic54x_macro_start): Check for too much macro nesting.
	(tic54x_start_label): Add label_start parameter.  Use this
	parameter to check the first character of the label.
	* config/tc-tic54x.h (TC_START_LABEL_WITHOUT_COLON): Pass
	line_start variable to tic54x_start_label.

	PR 24538
opcodes	* ia64-opc.c (ia64_find_matching_opcode): Check for reaching the
	end of the table prematurely.

1 files changed, 24 insertions, 24 deletions

diff --git a/gas/dw2gencfi.c b/gas/dw2gencfi.c
index d85997b..f30734d 100644
--- a/gas/dw2gencfi.c
+++ b/gas/dw2gencfi.c
@@ -225,37 +225,37 @@ emit_expr_encoded (expressionS *exp, int encoding, bfd_boolean emit_encoding)
 static char *
 get_debugseg_name (segT seg, const char *base_name)
 {
-  const char *name;
+  const char * name;
+  const char * dollar;
+  const char * dot;
 
   if (!seg)
-    name = "";
-  else
-    {
-      const char * dollar;
-      const char * dot;
+    return concat (base_name, NULL);
 
-      name = bfd_get_section_name (stdoutput, seg);
+  name = bfd_get_section_name (stdoutput, seg);
 
-      dollar = strchr (name, '$');
-      dot = strchr (name + 1, '.');
+  if (name == NULL || *name == 0)
+    return concat (base_name, NULL);
+	
+  dollar = strchr (name, '$');
+  dot = strchr (name + 1, '.');
 
-      if (!dollar && !dot)
-	{
-	  if (!strcmp (base_name, ".eh_frame_entry")
-	      && strcmp (name, ".text") != 0)
-	    return concat (base_name, ".", name, NULL);
+  if (!dollar && !dot)
+    {
+      if (!strcmp (base_name, ".eh_frame_entry")
+	  && strcmp (name, ".text") != 0)
+	return concat (base_name, ".", name, NULL);
 
-	  name = "";
-	}
-      else if (!dollar)
-	name = dot;
-      else if (!dot)
-	name = dollar;
-      else if (dot < dollar)
-	name = dot;
-      else
-	name = dollar;
+      name = "";
     }
+  else if (!dollar)
+    name = dot;
+  else if (!dot)
+    name = dollar;
+  else if (dot < dollar)
+    name = dot;
+  else
+    name = dollar;
 
   return concat (base_name, name, NULL);
 }