From 03c75a4a21ef3dba8abbc7e596d2a102427a3d96 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Wed, 15 Jul 2009 18:21:56 -0700 Subject: PR5930: Address-op for $target and @cast members This allows the '&' operator to get the address of @cast and $target variable expressions. * staptree.h (target_symbol): add addressof field * staptree.cxx (target_symbol::print): print '&' for addressof (cast_op::print): ditto * parse.cxx (parser::parse_value): allow '&' prefix on $target/@cast * dwflpp.cxx (dwflpp::translate_final_fetch_or_store): allow taking the computed address without actually doing a final fetch. * tapset* (*::visit_target_symbol): throw errors for $vars w/o addresses * testsuite/systemtap.base/cast.stp: add &@cast test * testsuite/semok/target_addr.stp: test '&' on different member types * testsuite/semko/target_addr?.stp: test failure on bitfields/registers --- staptree.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'staptree.h') diff --git a/staptree.h b/staptree.h index 7e9506bb..16f0256a 100644 --- a/staptree.h +++ b/staptree.h @@ -229,11 +229,12 @@ struct target_symbol: public symbol comp_struct_member, comp_literal_array_index }; + bool addressof; std::string base_name; std::vector > components; std::string probe_context_var; semantic_error* saved_conversion_error; - target_symbol(): saved_conversion_error (0) {} + target_symbol(): addressof(false), saved_conversion_error (0) {} void print (std::ostream& o) const; void visit (visitor* u); }; -- cgit