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The next batch of patches concern rewriting gdb to use this overload, in the end allowing us to remove a use of value_address. --- gdb/compile/compile-c-symbols.c | 2 +- gdb/compile/compile-cplus-symbols.c | 2 +- gdb/findvar.c | 12 ++++++++++++ gdb/infrun.c | 2 +- gdb/valops.c | 26 ++++++++++++-------------- gdb/value.h | 3 +++ 6 files changed, 30 insertions(+), 17 deletions(-) diff --git a/gdb/compile/compile-c-symbols.c b/gdb/compile/compile-c-symbols.c index 2d49ead249e..40578bf36f4 100644 --- a/gdb/compile/compile-c-symbols.c +++ b/gdb/compile/compile-c-symbols.c @@ -155,7 +155,7 @@ convert_one_symbol (compile_c_instance *context, sym.symbol->print_name ()); } - val = read_var_value (sym.symbol, sym.block, frame); + val = read_var_value (sym, frame); if (val->lval () != lval_memory) error (_("Symbol \"%s\" cannot be used for compilation " "evaluation as its address has not been found."), diff --git a/gdb/compile/compile-cplus-symbols.c b/gdb/compile/compile-cplus-symbols.c index dec0260bf7a..1288225f08e 100644 --- a/gdb/compile/compile-cplus-symbols.c +++ b/gdb/compile/compile-cplus-symbols.c @@ -151,7 +151,7 @@ convert_one_symbol (compile_cplus_instance *instance, sym.symbol->print_name ()); } - val = read_var_value (sym.symbol, sym.block, frame); + val = read_var_value (sym, frame); if (val->lval () != lval_memory) error (_("Symbol \"%s\" cannot be used for compilation " "evaluation as its address has not been found."), diff --git a/gdb/findvar.c b/gdb/findvar.c index 4e992ecdcc7..909dca65532 100644 --- a/gdb/findvar.c +++ b/gdb/findvar.c @@ -794,6 +794,18 @@ read_var_value (struct symbol *var, const struct block *var_block, return lang->read_var_value (var, var_block, frame); } +/* Calls VAR's language read_var_value hook with the given arguments. */ + +struct value * +read_var_value (block_symbol var, frame_info_ptr frame) +{ + const struct language_defn *lang = language_def (var.symbol->language ()); + + gdb_assert (lang != NULL); + + return lang->read_var_value (var.symbol, var.block, frame); +} + /* Install default attributes for register values. */ struct value * diff --git a/gdb/infrun.c b/gdb/infrun.c index 4fde96800fb..a7cb02c958e 100644 --- a/gdb/infrun.c +++ b/gdb/infrun.c @@ -8311,7 +8311,7 @@ insert_exception_resume_breakpoint (struct thread_info *tp, vsym = lookup_symbol_search_name (sym->search_name (), b, VAR_DOMAIN); - value = read_var_value (vsym.symbol, vsym.block, frame); + value = read_var_value (vsym, frame); /* If the value was optimized out, revert to the old behavior. */ if (! value->optimized_out ()) { diff --git a/gdb/valops.c b/gdb/valops.c index 70851cd40b4..b7ed458a649 100644 --- a/gdb/valops.c +++ b/gdb/valops.c @@ -3711,17 +3711,16 @@ value_struct_elt_for_reference (struct type *domain, int offset, if (TYPE_FN_FIELD_STATIC_P (f, j)) { - struct symbol *s = - lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, j), - 0, VAR_DOMAIN, 0).symbol; + block_symbol s = lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, j), + 0, VAR_DOMAIN, 0); - if (s == NULL) - return NULL; + if (s.symbol == nullptr) + return nullptr; if (want_address) - return value_addr (read_var_value (s, 0, 0)); + return value_addr (read_var_value (s, 0)); else - return read_var_value (s, 0, 0); + return read_var_value (s, 0); } if (TYPE_FN_FIELD_VIRTUAL_P (f, j)) @@ -3742,14 +3741,13 @@ value_struct_elt_for_reference (struct type *domain, int offset, } else { - struct symbol *s = - lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, j), - 0, VAR_DOMAIN, 0).symbol; + block_symbol s = lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, j), + 0, VAR_DOMAIN, 0); - if (s == NULL) - return NULL; + if (s.symbol == nullptr) + return nullptr; - struct value *v = read_var_value (s, 0, 0); + struct value *v = read_var_value (s, 0); if (!want_address) result = v; else @@ -4000,7 +3998,7 @@ value_of_this (const struct language_defn *lang) error (_("current stack frame does not contain a variable named `%s'"), lang->name_of_this ()); - return read_var_value (sym.symbol, sym.block, frame); + return read_var_value (sym, frame); } /* Return the value of the local variable, if one exists. Return NULL diff --git a/gdb/value.h b/gdb/value.h index e4912717684..b683cbf5f90 100644 --- a/gdb/value.h +++ b/gdb/value.h @@ -1140,6 +1140,9 @@ extern struct value *read_var_value (struct symbol *var, const struct block *var_block, frame_info_ptr frame); +extern struct value *read_var_value (block_symbol var, + frame_info_ptr frame); + extern struct value *allocate_repeat_value (struct type *type, int count); extern struct value *value_mark (void); -- 2.41.0