gdb.trace: Fix off-by-one in tfile_fetch_registers.

This resulted in the last register being considered unavailable.
On plain x86_64 (without AVX), this happened to be orig_rax.

gdb/ChangeLog:

	* tracefile-tfile.c (tfile_fetch_registers): Fix off-by-one in bounds
	check.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1bca0d7..9f8aa1d 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2016-02-10  Marcin Kościelnicki  <koriakin@0x04.net>
+
+       * tracefile-tfile.c (tfile_fetch_registers): Fix off-by-one in bounds
+       check.
+
 2016-02-10  Joel Brobecker  <brobecker@adacore.com>
 
        * NEWS: Create a new section for the next release branch.

diff --git a/gdb/tracefile-tfile.c b/gdb/tracefile-tfile.c
index b761894..dc7b05a 100644 (file)
--- a/gdb/tracefile-tfile.c
+++ b/gdb/tracefile-tfile.c
@@ -816,7 +816,7 @@ tfile_fetch_registers (struct target_ops *ops,
        {
          regsize = register_size (gdbarch, regn);
          /* Make sure we stay within block bounds.  */
-         if (offset + regsize >= trace_regblock_size)
+         if (offset + regsize > trace_regblock_size)
            break;
          if (regcache_register_status (regcache, regn) == REG_UNKNOWN)
            {