X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fobsd-tdep.c;h=1c1f574ef19f57f77ad9c223ba7c579fb3526ce1;hb=d16c467a501547e37b111f775396e28f8bf27c1e;hp=b94ee41ab694101bcd2ee5da63ff05dfe80db51d;hpb=77e371c079408e265f1dfd2b0620dd8e76c23371;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/obsd-tdep.c b/gdb/obsd-tdep.c
index b94ee41ab6..1c1f574ef1 100644
--- a/gdb/obsd-tdep.c
+++ b/gdb/obsd-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for OpenBSD.
 
-   Copyright (C) 2005-2014 Free Software Foundation, Inc.
+   Copyright (C) 2005-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -289,6 +289,31 @@ obsd_gdb_signal_to_target (struct gdbarch *gdbarch,
   return -1;
 }
 
+static int
+obsd_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr,
+		 gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp)
+{
+  struct type *int_type = builtin_type (gdbarch)->builtin_int;
+  struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
+  const int sizeof_auxv_type = TYPE_LENGTH (int_type);
+  const int sizeof_auxv_val = TYPE_LENGTH (ptr_type);
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+  gdb_byte *ptr = *readptr;
+
+  if (endptr == ptr)
+    return 0;
+
+  if (endptr - ptr < 2 * sizeof_auxv_val)
+    return -1;
+
+  *typep = extract_unsigned_integer (ptr, sizeof_auxv_type, byte_order);
+  ptr += sizeof_auxv_val;	/* Alignment.  */
+  *valp = extract_unsigned_integer (ptr, sizeof_auxv_val, byte_order);
+  ptr += sizeof_auxv_val;
+
+  *readptr = ptr;
+  return 1;
+}
 
 void
 obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
@@ -297,4 +322,7 @@ obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 				      obsd_gdb_signal_from_target);
   set_gdbarch_gdb_signal_to_target (gdbarch,
 				    obsd_gdb_signal_to_target);
+
+  /* Unlike Linux, OpenBSD actually follows the ELF standard.  */
+  set_gdbarch_auxv_parse (gdbarch, obsd_auxv_parse);
 }