[binutils-gdb] [AARCH64][GAS] Fix two -Wstack-usage warnings.

[Renlin Li <renlin at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=08d3b0cc99459a14c398d513ca9dcf7fc0c60667

commit 08d3b0cc99459a14c398d513ca9dcf7fc0c60667
Author: Renlin Li <renlin.li@arm.com>
Date:   Thu Jun 9 10:08:08 2016 +0100

    [AARCH64][GAS] Fix two -Wstack-usage warnings.
    
    Warning triggerd by gcc 5 with -O0 flag.
    error: stack usage might be unbounded [-Werror=stack-usage=]
    
    gas/
    
    2016-06-08  Renlin Li  <renlin.li@arm.com>
    
    	* config/tc-aarch64.c (print_operands): Substitute size.
    	(output_operand_error_record): Likewise.

Diff:
---
 gas/ChangeLog           |  5 +++++
 gas/config/tc-aarch64.c | 12 +++++-------
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/gas/ChangeLog b/gas/ChangeLog
index c3b2436..38d0041 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2016-06-08  Renlin Li  <renlin.li@arm.com>
+
+	* config/tc-aarch64.c (print_operands): Substitute size.
+	(output_operand_error_record): Likewise.
+
 2016-06-07  Alan Modra  <amodra@gmail.com>
 
 	* config/tc-ppc.c (PPC_APUINFO_ISEL, PPC_APUINFO_PMR,
diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c
index 00a931e..774494f 100644
--- a/gas/config/tc-aarch64.c
+++ b/gas/config/tc-aarch64.c
@@ -4231,8 +4231,7 @@ print_operands (char *buf, const aarch64_opcode *opcode,
 
   for (i = 0; i < AARCH64_MAX_OPND_NUM; ++i)
     {
-      const size_t size = 128;
-      char str[size];
+      char str[128];
 
       /* We regard the opcode operand info more, however we also look into
 	 the inst->operands to support the disassembling of the optional
@@ -4244,7 +4243,7 @@ print_operands (char *buf, const aarch64_opcode *opcode,
 	break;
 
       /* Generate the operand string in STR.  */
-      aarch64_print_operand (str, size, 0, opcode, opnds, i, NULL, NULL);
+      aarch64_print_operand (str, sizeof (str), 0, opcode, opnds, i, NULL, NULL);
 
       /* Delimiter.  */
       if (str[0] != '\0')
@@ -4350,8 +4349,7 @@ output_operand_error_record (const operand_error_record *record, char *str)
 	  size_t len = strlen (get_mnemonic_name (str));
 	  int i, qlf_idx;
 	  bfd_boolean result;
-	  const size_t size = 2048;
-	  char buf[size];
+	  char buf[2048];
 	  aarch64_inst *inst_base = &inst.base;
 	  const aarch64_opnd_qualifier_seq_t *qualifiers_list;
 
@@ -4381,7 +4379,7 @@ output_operand_error_record (const operand_error_record *record, char *str)
 
 	  /* Print the hint.  */
 	  output_info (_("   did you mean this?"));
-	  snprintf (buf, size, "\t%s", get_mnemonic_name (str));
+	  snprintf (buf, sizeof (buf), "\t%s", get_mnemonic_name (str));
 	  print_operands (buf, opcode, inst_base->operands);
 	  output_info (_("   %s"), buf);
 
@@ -4402,7 +4400,7 @@ output_operand_error_record (const operand_error_record *record, char *str)
 	      if (i != qlf_idx)
 		{
 		  /* Mnemonics name.  */
-		  snprintf (buf, size, "\t%s", get_mnemonic_name (str));
+		  snprintf (buf, sizeof (buf), "\t%s", get_mnemonic_name (str));
 
 		  /* Assign the qualifiers.  */
 		  assign_qualifier_sequence (inst_base, *qualifiers_list);