[RFA 07/13] Use gdb::def_vector in sparc64-tdep.c

[Tom Tromey <tom@tromey.com>]

This removes a cleanup from sparc64-tdep.c, replacing it with
gdb::def_vector.

gdb/ChangeLog
2017-11-02  Tom Tromey  <tom@tromey.com>

	* sparc64-tdep.c (do_examine): Use gdb::def_vector.
---
 gdb/ChangeLog      |  4 ++++
 gdb/sparc64-tdep.c | 10 +++-------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/gdb/sparc64-tdep.c b/gdb/sparc64-tdep.c
index a756834cba..eebfbdf96f 100644
--- a/gdb/sparc64-tdep.c
+++ b/gdb/sparc64-tdep.c
@@ -415,21 +415,17 @@ static void
 do_examine (CORE_ADDR start, int bcnt)
 {
   CORE_ADDR vaddr = adi_normalize_address (start);
-  struct cleanup *cleanup;
 
   CORE_ADDR vstart = adi_align_address (vaddr);
   int cnt = adi_convert_byte_count (vaddr, bcnt, vstart);
-  unsigned char *buf = (unsigned char *) xmalloc (cnt);
-  cleanup = make_cleanup (xfree, buf);
-  int read_cnt = adi_read_versions (vstart, cnt, buf);
+  gdb::def_vector<unsigned char> buf (cnt);
+  int read_cnt = adi_read_versions (vstart, cnt, buf.data ());
   if (read_cnt == -1)
     error (_("No ADI information"));
   else if (read_cnt < cnt)
     error(_("No ADI information at %s"), paddress (target_gdbarch (), vaddr));
 
-  adi_print_versions (vstart, cnt, buf);
-
-  do_cleanups (cleanup);
+  adi_print_versions (vstart, cnt, buf.data ());
 }
 
 static void
-- 
2.13.6