X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fax-gdb.c;h=f56183b0517160dc31b158d2fc5b51f1cb926616;hb=6ab12e0f337aeec39c6d0858eada8a7f6a516909;hp=ab6b82918bba1a7fe8f6302f7362ac71cd5583aa;hpb=175ff332d0cbd9e522a396be6a990d20fdd0ea07;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/ax-gdb.c b/gdb/ax-gdb.c
index ab6b82918b..f56183b051 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);