X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fgdbserver%2Flinux-low.c;h=7158a6798c91f42670a232343b252d5f835da999;hb=974c89e0882ddb03e294eca76a9e3d3bef90eacf;hp=6f703f589fe931c86c27bf750cf6ee144062befd;hpb=7ea79cb3affe1ae1d196f511ace044c015e0ccd3;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index 6f703f589f..7158a6798c 100644
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -7423,6 +7423,53 @@ linux_get_pc_64bit (struct regcache *regcache)
   return pc;
 }
 
+/* Fetch the entry MATCH from the auxv vector, where entries are length
+   WORDSIZE.  If no entry was found, return zero.  */
+
+static CORE_ADDR
+linux_get_auxv (int wordsize, CORE_ADDR match)
+{
+  gdb_byte *data = (gdb_byte *) alloca (2 * wordsize);
+  int offset = 0;
+
+  gdb_assert (wordsize == 4 || wordsize == 8);
+
+  while ((*the_target->read_auxv) (offset, data, 2 * wordsize) == 2 * wordsize)
+    {
+      if (wordsize == 4)
+	{
+	  uint32_t *data_p = (uint32_t *)data;
+	  if (data_p[0] == match)
+	    return data_p[1];
+	}
+      else
+	{
+	  uint64_t *data_p = (uint64_t *)data;
+	  if (data_p[0] == match)
+	    return data_p[1];
+	}
+
+      offset += 2 * wordsize;
+    }
+
+  return 0;
+}
+
+/* See linux-low.h.  */
+
+CORE_ADDR
+linux_get_hwcap (int wordsize)
+{
+  return linux_get_auxv (wordsize, AT_HWCAP);
+}
+
+/* See linux-low.h.  */
+
+CORE_ADDR
+linux_get_hwcap2 (int wordsize)
+{
+  return linux_get_auxv (wordsize, AT_HWCAP2);
+}
 
 static struct target_ops linux_target_ops = {
   linux_create_inferior,