Fix regression from multi-arch patch.

This fixes the regression reported at
<http://sourceware.org/ml/gdb-patches/2013-06/msg00185.html>.

GDBserver was reaching:

static int
regsets_fetch_inferior_registers (struct regsets_info *regsets_info,
				  struct regcache *regcache)
{
  struct regset_info *regset;
  int saw_general_regs = 0;
  int pid;
  struct iovec iov;

  regset = regsets_info->regsets;

  pid = lwpid_of (get_thread_lwp (current_inferior));
  while (regset->size >= 0)
    {
      void *buf, *data;
      int nt_type, res;

      if (regset->size == 0
	  || regsets_info->disabled_regsets[regset - regsets_info->regsets])
	{
>>>>>>>	  regset ++;      <<<<<<<  HERE
	  continue;
	}

Because info->disabled_regsets[] was not being initialized, and that
causes all sorts of wrong.

gdb/gdbserver/
2013-06-11  Pedro Alves  <palves@redhat.com>

	* linux-low.c (initialize_regsets_info): Use xcalloc instead of
	xmalloc.

diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index c73cccf..169bb53 100644 (file)
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,5 +1,10 @@
 2013-06-11  Pedro Alves  <palves@redhat.com>
 
+       * linux-low.c (initialize_regsets_info): Use xcalloc instead of
+       xmalloc.
+
+2013-06-11  Pedro Alves  <palves@redhat.com>
+
        * linux-x86-low.c (initialize_low_arch): Call
        init_registers_x32_avx_linux.
 

diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index f7e510e..2114b07 100644 (file)
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -6072,7 +6072,7 @@ initialize_regsets_info (struct regsets_info *info)
        info->regsets[info->num_regsets].size >= 0;
        info->num_regsets++)
     ;
-  info->disabled_regsets = xmalloc (info->num_regsets);
+  info->disabled_regsets = xcalloc (1, info->num_regsets);
 }
 #endif