[PATCH 2/3] bpf: remove huge memory waste with string allocation.

[Cupertino Miranda <cupertino.miranda@oracle.com>]

Code was allocating way too much space for the string.

gcc/ChangeLog:
	* config/bpf/core-builtins.cc (process_enum_value): Corrected
	string allocation.
---
 gcc/config/bpf/core-builtins.cc | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/gcc/config/bpf/core-builtins.cc b/gcc/config/bpf/core-builtins.cc
index e03e986e2c1..ead1777d465 100644
--- a/gcc/config/bpf/core-builtins.cc
+++ b/gcc/config/bpf/core-builtins.cc
@@ -872,10 +872,11 @@ process_enum_value (struct cr_builtins *data)
 	{
 	  if (TREE_VALUE (l) == expr)
 	    {
-	      char *tmp = (char *) ggc_alloc_atomic ((index / 10) + 1);
+	      /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string
+		 representations of 64 bit integers.  */
+	      char tmp[21];
 	      sprintf (tmp, "%d", index);
-	      ret.str = (const char *) tmp;
-
+	      ret.str = CONST_CAST (char *, ggc_strdup(tmp));
 	      break;
 	    }
 	  index++;
-- 
2.30.2