From: Pedro Alves <palves@redhat.com>
Date: Tue, 28 Dec 2010 17:59:58 +0000 (+0000)
Subject: 	* ax-gdb.c (gen_expr) <OP_REGISTER>: Error out if trying to
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6ab12e0f337aeec39c6d0858eada8a7f6a516909;p=binutils-gdb.git

	* ax-gdb.c (gen_expr) <OP_REGISTER>: Error out if trying to
	collect a user register.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6508a66842e..1288db11e9a 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2010-12-28  Pedro Alves  <pedro@codesourcery.com>
+
+	* ax-gdb.c (gen_expr) <OP_REGISTER>: Error out if trying to
+	collect a user register.
+
 2010-12-28  Hui Zhu  <teawater@gmail.com>
 
 	* gdbarch.sh (ax_pseudo_register_collect,
diff --git a/gdb/ax-gdb.c b/gdb/ax-gdb.c
index ab6b82918bb..f56183b0517 100644
--- a/gdb/ax-gdb.c
+++ b/gdb/ax-gdb.c
@@ -1978,6 +1978,12 @@ gen_expr (struct expression *exp, union exp_element **pc,
 	if (reg == -1)
 	  internal_error (__FILE__, __LINE__,
 			  _("Register $%s not available"), name);
+	/* No support for tracing user registers yet.  */
+	if (reg >= gdbarch_num_regs (exp->gdbarch)
+	    + gdbarch_num_pseudo_regs (exp->gdbarch))
+	  error (_("'%s' is a pseudo-register; "
+		   "GDB cannot yet trace pseudoregister contents."),
+		 name);
 	value->kind = axs_lvalue_register;
 	value->u.reg = reg;
 	value->type = register_type (exp->gdbarch, reg);