ax-gdb: Remove unnecessary gdbarch parameters
In multiple places, we pass the gdbarch as an argument to some functions, even though it's available in the agent_expr structure also passed to the same functions. Remove these arguments and replace their usage with accesses to agent_expr::gdbarch. gdb/ChangeLog: * dwarf2loc.h (dwarf2_compile_expr_to_ax): Remove gdbarch parameter. * symtab.h (struct symbol_computed_ops::tracepoint_var_ref): Likewise. * dwarf2loc.c (dwarf2_compile_expr_to_ax): Remove gdbarch parameter, use agent_expr::gdbarch instead, update function calls. (locexpr_tracepoint_var_ref): Likewise. (loclist_tracepoint_var_ref): Likewise. * ax-gdb.c (gen_trace_static_fields): Likewise. (gen_traced_pop): Likewise. (gen_frame_args_address): Likewise. (gen_frame_locals_address): Likewise. (gen_var_ref): Likewise. (gen_struct_ref_recursive): Likewise. (gen_static_field): Likewise. (gen_maybe_namespace_elt): Likewise. (gen_expr): Likewise. (gen_trace_for_var): Likewise. (gen_trace_for_expr): Likewise. (gen_trace_for_return_address): Likewise.
This commit is contained in:
Simon Marchi
parent
053f805718
commit
40f4af2873
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@ -1,3 +1,27 @@
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2017-07-14 Simon Marchi <simon.marchi@ericsson.com>
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* dwarf2loc.h (dwarf2_compile_expr_to_ax): Remove gdbarch
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parameter.
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* symtab.h (struct symbol_computed_ops::tracepoint_var_ref):
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Likewise.
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* dwarf2loc.c (dwarf2_compile_expr_to_ax): Remove gdbarch
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parameter, use agent_expr::gdbarch instead, update function
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calls.
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(locexpr_tracepoint_var_ref): Likewise.
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(loclist_tracepoint_var_ref): Likewise.
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* ax-gdb.c (gen_trace_static_fields): Likewise.
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(gen_traced_pop): Likewise.
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(gen_frame_args_address): Likewise.
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(gen_frame_locals_address): Likewise.
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(gen_var_ref): Likewise.
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(gen_struct_ref_recursive): Likewise.
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(gen_static_field): Likewise.
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(gen_maybe_namespace_elt): Likewise.
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(gen_expr): Likewise.
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(gen_trace_for_var): Likewise.
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(gen_trace_for_expr): Likewise.
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(gen_trace_for_return_address): Likewise.
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2017-07-14 Simon Marchi <simon.marchi@ericsson.com>
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* ax-gdb.c (gen_deref, gen_address_of): Remove unused ax
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78
gdb/ax-gdb.c
78
gdb/ax-gdb.c
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@ -77,8 +77,7 @@ static struct value *const_var_ref (struct symbol *var);
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static struct value *const_expr (union exp_element **pc);
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static struct value *maybe_const_expr (union exp_element **pc);
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static void gen_traced_pop (struct gdbarch *, struct agent_expr *,
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struct axs_value *);
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static void gen_traced_pop (struct agent_expr *, struct axs_value *);
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static void gen_sign_extend (struct agent_expr *, struct type *);
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static void gen_extend (struct agent_expr *, struct type *);
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@ -86,12 +85,12 @@ static void gen_fetch (struct agent_expr *, struct type *);
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static void gen_left_shift (struct agent_expr *, int);
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static void gen_frame_args_address (struct gdbarch *, struct agent_expr *);
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static void gen_frame_locals_address (struct gdbarch *, struct agent_expr *);
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static void gen_frame_args_address (struct agent_expr *);
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static void gen_frame_locals_address (struct agent_expr *);
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static void gen_offset (struct agent_expr *ax, int offset);
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static void gen_sym_offset (struct agent_expr *, struct symbol *);
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static void gen_var_ref (struct gdbarch *, struct agent_expr *ax,
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struct axs_value *value, struct symbol *var);
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static void gen_var_ref (struct agent_expr *ax, struct axs_value *value,
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struct symbol *var);
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static void gen_int_literal (struct agent_expr *ax,
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@ -146,8 +145,7 @@ static void gen_struct_ref (struct agent_expr *ax,
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const char *field,
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const char *operator_name,
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const char *operand_name);
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static void gen_static_field (struct gdbarch *gdbarch,
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struct agent_expr *ax, struct axs_value *value,
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static void gen_static_field (struct agent_expr *ax, struct axs_value *value,
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struct type *type, int fieldno);
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static void gen_repeat (struct expression *exp, union exp_element **pc,
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struct agent_expr *ax, struct axs_value *value);
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@ -312,8 +310,7 @@ maybe_const_expr (union exp_element **pc)
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classes, and generate tracing bytecodes for each. */
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static void
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gen_trace_static_fields (struct gdbarch *gdbarch,
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struct agent_expr *ax,
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gen_trace_static_fields (struct agent_expr *ax,
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struct type *type)
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{
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int i, nbases = TYPE_N_BASECLASSES (type);
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@ -325,7 +322,7 @@ gen_trace_static_fields (struct gdbarch *gdbarch,
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{
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if (field_is_static (&TYPE_FIELD (type, i)))
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{
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gen_static_field (gdbarch, ax, &value, type, i);
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gen_static_field (ax, &value, type, i);
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if (value.optimized_out)
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continue;
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switch (value.kind)
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@ -355,7 +352,7 @@ gen_trace_static_fields (struct gdbarch *gdbarch,
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{
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struct type *basetype = check_typedef (TYPE_BASECLASS (type, i));
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gen_trace_static_fields (gdbarch, ax, basetype);
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gen_trace_static_fields (ax, basetype);
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}
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}
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@ -363,8 +360,7 @@ gen_trace_static_fields (struct gdbarch *gdbarch,
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the value. Useful on the left side of a comma, and at the end of
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an expression being used for tracing. */
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static void
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gen_traced_pop (struct gdbarch *gdbarch,
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struct agent_expr *ax, struct axs_value *value)
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gen_traced_pop (struct agent_expr *ax, struct axs_value *value)
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{
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int string_trace = 0;
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if (ax->trace_string
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@ -437,7 +433,7 @@ gen_traced_pop (struct gdbarch *gdbarch,
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if (ax->tracing
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&& (TYPE_CODE (value->type) == TYPE_CODE_STRUCT
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|| TYPE_CODE (value->type) == TYPE_CODE_UNION))
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gen_trace_static_fields (gdbarch, ax, value->type);
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gen_trace_static_fields (ax, value->type);
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}
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@ -556,12 +552,12 @@ gen_left_shift (struct agent_expr *ax, int distance)
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/* Generate code to push the base address of the argument portion of
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the top stack frame. */
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static void
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gen_frame_args_address (struct gdbarch *gdbarch, struct agent_expr *ax)
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gen_frame_args_address (struct agent_expr *ax)
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{
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int frame_reg;
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LONGEST frame_offset;
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gdbarch_virtual_frame_pointer (gdbarch,
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gdbarch_virtual_frame_pointer (ax->gdbarch,
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ax->scope, &frame_reg, &frame_offset);
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ax_reg (ax, frame_reg);
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gen_offset (ax, frame_offset);
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@ -571,12 +567,12 @@ gen_frame_args_address (struct gdbarch *gdbarch, struct agent_expr *ax)
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/* Generate code to push the base address of the locals portion of the
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top stack frame. */
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static void
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gen_frame_locals_address (struct gdbarch *gdbarch, struct agent_expr *ax)
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gen_frame_locals_address (struct agent_expr *ax)
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{
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int frame_reg;
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LONGEST frame_offset;
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gdbarch_virtual_frame_pointer (gdbarch,
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gdbarch_virtual_frame_pointer (ax->gdbarch,
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ax->scope, &frame_reg, &frame_offset);
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ax_reg (ax, frame_reg);
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gen_offset (ax, frame_offset);
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@ -621,8 +617,7 @@ gen_sym_offset (struct agent_expr *ax, struct symbol *var)
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symbol VAR. Set VALUE to describe the result. */
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static void
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gen_var_ref (struct gdbarch *gdbarch, struct agent_expr *ax,
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struct axs_value *value, struct symbol *var)
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gen_var_ref (struct agent_expr *ax, struct axs_value *value, struct symbol *var)
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{
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/* Dereference any typedefs. */
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value->type = check_typedef (SYMBOL_TYPE (var));
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@ -630,7 +625,7 @@ gen_var_ref (struct gdbarch *gdbarch, struct agent_expr *ax,
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if (SYMBOL_COMPUTED_OPS (var) != NULL)
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{
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SYMBOL_COMPUTED_OPS (var)->tracepoint_var_ref (var, gdbarch, ax, value);
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SYMBOL_COMPUTED_OPS (var)->tracepoint_var_ref (var, ax, value);
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return;
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}
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@ -660,22 +655,22 @@ gen_var_ref (struct gdbarch *gdbarch, struct agent_expr *ax,
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break;
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case LOC_ARG: /* var lives in argument area of frame */
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gen_frame_args_address (gdbarch, ax);
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gen_frame_args_address (ax);
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gen_sym_offset (ax, var);
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value->kind = axs_lvalue_memory;
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break;
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case LOC_REF_ARG: /* As above, but the frame slot really
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holds the address of the variable. */
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gen_frame_args_address (gdbarch, ax);
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gen_frame_args_address (ax);
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gen_sym_offset (ax, var);
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/* Don't assume any particular pointer size. */
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gen_fetch (ax, builtin_type (gdbarch)->builtin_data_ptr);
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gen_fetch (ax, builtin_type (ax->gdbarch)->builtin_data_ptr);
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value->kind = axs_lvalue_memory;
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break;
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case LOC_LOCAL: /* var lives in locals area of frame */
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gen_frame_locals_address (gdbarch, ax);
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gen_frame_locals_address (ax);
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gen_sym_offset (ax, var);
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value->kind = axs_lvalue_memory;
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break;
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@ -695,7 +690,8 @@ gen_var_ref (struct gdbarch *gdbarch, struct agent_expr *ax,
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this as an lvalue or rvalue, the caller will generate the
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right code. */
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value->kind = axs_lvalue_register;
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value->u.reg = SYMBOL_REGISTER_OPS (var)->register_number (var, gdbarch);
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value->u.reg
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= SYMBOL_REGISTER_OPS (var)->register_number (var, ax->gdbarch);
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break;
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/* A lot like LOC_REF_ARG, but the pointer lives directly in a
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@ -703,7 +699,8 @@ gen_var_ref (struct gdbarch *gdbarch, struct agent_expr *ax,
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because it's just like any other case where the thing
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has a real address. */
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case LOC_REGPARM_ADDR:
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ax_reg (ax, SYMBOL_REGISTER_OPS (var)->register_number (var, gdbarch));
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ax_reg (ax,
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SYMBOL_REGISTER_OPS (var)->register_number (var, ax->gdbarch));
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value->kind = axs_lvalue_memory;
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break;
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@ -1446,7 +1443,7 @@ gen_struct_ref_recursive (struct agent_expr *ax, struct axs_value *value,
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being handled as a global. */
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if (field_is_static (&TYPE_FIELD (type, i)))
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{
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gen_static_field (ax->gdbarch, ax, value, type, i);
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gen_static_field (ax, value, type, i);
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if (value->optimized_out)
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error (_("static field `%s' has been "
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"optimized out, cannot use"),
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@ -1532,8 +1529,7 @@ gen_maybe_namespace_elt (struct agent_expr *ax, struct axs_value *value,
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const struct type *curtype, char *name);
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static void
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gen_static_field (struct gdbarch *gdbarch,
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struct agent_expr *ax, struct axs_value *value,
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gen_static_field (struct agent_expr *ax, struct axs_value *value,
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struct type *type, int fieldno)
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{
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if (TYPE_FIELD_LOC_KIND (type, fieldno) == FIELD_LOC_KIND_PHYSADDR)
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@ -1550,7 +1546,7 @@ gen_static_field (struct gdbarch *gdbarch,
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if (sym)
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{
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gen_var_ref (gdbarch, ax, value, sym);
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gen_var_ref (ax, value, sym);
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/* Don't error if the value was optimized out, we may be
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scanning all static fields and just want to pass over this
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@ -1585,7 +1581,7 @@ gen_struct_elt_for_reference (struct agent_expr *ax, struct axs_value *value,
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{
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if (field_is_static (&TYPE_FIELD (t, i)))
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{
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gen_static_field (ax->gdbarch, ax, value, t, i);
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gen_static_field (ax, value, t, i);
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if (value->optimized_out)
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error (_("static field `%s' has been "
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"optimized out, cannot use"),
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@ -1643,7 +1639,7 @@ gen_maybe_namespace_elt (struct agent_expr *ax, struct axs_value *value,
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if (sym.symbol == NULL)
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return 0;
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gen_var_ref (ax->gdbarch, ax, value, sym.symbol);
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gen_var_ref (ax, value, sym.symbol);
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if (value->optimized_out)
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error (_("`%s' has been optimized out, cannot use"),
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@ -1945,7 +1941,7 @@ gen_expr (struct expression *exp, union exp_element **pc,
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/* Don't just dispose of the left operand. We might be tracing,
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in which case we want to emit code to trace it if it's an
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lvalue. */
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gen_traced_pop (ax->gdbarch, ax, &value1);
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gen_traced_pop (ax, &value1);
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gen_expr (exp, pc, ax, value);
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/* It's the consumer's responsibility to trace the right operand. */
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break;
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@ -1961,7 +1957,7 @@ gen_expr (struct expression *exp, union exp_element **pc,
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break;
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case OP_VAR_VALUE:
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gen_var_ref (ax->gdbarch, ax, value, (*pc)[2].symbol);
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gen_var_ref (ax, value, (*pc)[2].symbol);
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if (value->optimized_out)
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error (_("`%s' has been optimized out, cannot use"),
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@ -2185,7 +2181,7 @@ gen_expr (struct expression *exp, union exp_element **pc,
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if (!sym)
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error (_("no `%s' found"), lang->la_name_of_this);
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gen_var_ref (ax->gdbarch, ax, value, sym);
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gen_var_ref (ax, value, sym);
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if (value->optimized_out)
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error (_("`%s' has been optimized out, cannot use"),
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@ -2386,7 +2382,7 @@ gen_trace_for_var (CORE_ADDR scope, struct gdbarch *gdbarch,
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ax->tracing = 1;
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ax->trace_string = trace_string;
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gen_var_ref (gdbarch, ax.get (), &value, var);
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gen_var_ref (ax.get (), &value, var);
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/* If there is no actual variable to trace, flag it by returning
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an empty agent expression. */
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@ -2394,7 +2390,7 @@ gen_trace_for_var (CORE_ADDR scope, struct gdbarch *gdbarch,
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return agent_expr_up ();
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/* Make sure we record the final object, and get rid of it. */
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gen_traced_pop (gdbarch, ax.get (), &value);
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gen_traced_pop (ax.get (), &value);
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/* Oh, and terminate. */
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ax_simple (ax.get (), aop_end);
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@ -2425,7 +2421,7 @@ gen_trace_for_expr (CORE_ADDR scope, struct expression *expr,
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gen_expr (expr, &pc, ax.get (), &value);
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/* Make sure we record the final object, and get rid of it. */
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gen_traced_pop (expr->gdbarch, ax.get (), &value);
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gen_traced_pop (ax.get (), &value);
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/* Oh, and terminate. */
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ax_simple (ax.get (), aop_end);
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@ -2473,7 +2469,7 @@ gen_trace_for_return_address (CORE_ADDR scope, struct gdbarch *gdbarch,
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gdbarch_gen_return_address (gdbarch, ax.get (), &value, scope);
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/* Make sure we record the final object, and get rid of it. */
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gen_traced_pop (gdbarch, ax.get (), &value);
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gen_traced_pop (ax.get (), &value);
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/* Oh, and terminate. */
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ax_simple (ax.get (), aop_end);
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@ -3018,10 +3018,11 @@ get_ax_pc (void *baton)
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void
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dwarf2_compile_expr_to_ax (struct agent_expr *expr, struct axs_value *loc,
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struct gdbarch *arch, unsigned int addr_size,
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const gdb_byte *op_ptr, const gdb_byte *op_end,
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unsigned int addr_size, const gdb_byte *op_ptr,
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const gdb_byte *op_end,
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struct dwarf2_per_cu_data *per_cu)
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{
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gdbarch *arch = expr->gdbarch;
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int i;
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std::vector<int> dw_labels, patches;
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const gdb_byte * const base = op_ptr;
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@ -3297,7 +3298,7 @@ dwarf2_compile_expr_to_ax (struct agent_expr *expr, struct axs_value *loc,
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&datastart, &datalen);
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op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset);
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dwarf2_compile_expr_to_ax (expr, loc, arch, addr_size, datastart,
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dwarf2_compile_expr_to_ax (expr, loc, addr_size, datastart,
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datastart + datalen, per_cu);
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if (loc->kind == axs_lvalue_register)
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require_rvalue (expr, loc);
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@ -3523,8 +3524,8 @@ dwarf2_compile_expr_to_ax (struct agent_expr *expr, struct axs_value *loc,
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{
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/* Another expression. */
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ax_const_l (expr, text_offset);
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dwarf2_compile_expr_to_ax (expr, loc, arch, addr_size,
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cfa_start, cfa_end, per_cu);
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dwarf2_compile_expr_to_ax (expr, loc, addr_size, cfa_start,
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cfa_end, per_cu);
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}
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loc->kind = axs_lvalue_memory;
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@ -3648,9 +3649,8 @@ dwarf2_compile_expr_to_ax (struct agent_expr *expr, struct axs_value *loc,
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/* DW_OP_call_ref is currently not supported. */
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gdb_assert (block.per_cu == per_cu);
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dwarf2_compile_expr_to_ax (expr, loc, arch, addr_size,
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block.data, block.data + block.size,
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per_cu);
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dwarf2_compile_expr_to_ax (expr, loc, addr_size, block.data,
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block.data + block.size, per_cu);
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}
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break;
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|
|
@ -4407,8 +4407,8 @@ locexpr_describe_location (struct symbol *symbol, CORE_ADDR addr,
|
|||
any necessary bytecode in AX. */
|
||||
|
||||
static void
|
||||
locexpr_tracepoint_var_ref (struct symbol *symbol, struct gdbarch *gdbarch,
|
||||
struct agent_expr *ax, struct axs_value *value)
|
||||
locexpr_tracepoint_var_ref (struct symbol *symbol, struct agent_expr *ax,
|
||||
struct axs_value *value)
|
||||
{
|
||||
struct dwarf2_locexpr_baton *dlbaton
|
||||
= (struct dwarf2_locexpr_baton *) SYMBOL_LOCATION_BATON (symbol);
|
||||
|
|
@ -4417,9 +4417,8 @@ locexpr_tracepoint_var_ref (struct symbol *symbol, struct gdbarch *gdbarch,
|
|||
if (dlbaton->size == 0)
|
||||
value->optimized_out = 1;
|
||||
else
|
||||
dwarf2_compile_expr_to_ax (ax, value, gdbarch, addr_size,
|
||||
dlbaton->data, dlbaton->data + dlbaton->size,
|
||||
dlbaton->per_cu);
|
||||
dwarf2_compile_expr_to_ax (ax, value, addr_size, dlbaton->data,
|
||||
dlbaton->data + dlbaton->size, dlbaton->per_cu);
|
||||
}
|
||||
|
||||
/* symbol_computed_ops 'generate_c_location' method. */
|
||||
|
|
@ -4615,8 +4614,8 @@ loclist_describe_location (struct symbol *symbol, CORE_ADDR addr,
|
|||
/* Describe the location of SYMBOL as an agent value in VALUE, generating
|
||||
any necessary bytecode in AX. */
|
||||
static void
|
||||
loclist_tracepoint_var_ref (struct symbol *symbol, struct gdbarch *gdbarch,
|
||||
struct agent_expr *ax, struct axs_value *value)
|
||||
loclist_tracepoint_var_ref (struct symbol *symbol, struct agent_expr *ax,
|
||||
struct axs_value *value)
|
||||
{
|
||||
struct dwarf2_loclist_baton *dlbaton
|
||||
= (struct dwarf2_loclist_baton *) SYMBOL_LOCATION_BATON (symbol);
|
||||
|
|
@ -4628,7 +4627,7 @@ loclist_tracepoint_var_ref (struct symbol *symbol, struct gdbarch *gdbarch,
|
|||
if (size == 0)
|
||||
value->optimized_out = 1;
|
||||
else
|
||||
dwarf2_compile_expr_to_ax (ax, value, gdbarch, addr_size, data, data + size,
|
||||
dwarf2_compile_expr_to_ax (ax, value, addr_size, data, data + size,
|
||||
dlbaton->per_cu);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -270,7 +270,6 @@ extern const struct symbol_block_ops dwarf2_block_frame_base_loclist_funcs;
|
|||
|
||||
extern void dwarf2_compile_expr_to_ax (struct agent_expr *expr,
|
||||
struct axs_value *loc,
|
||||
struct gdbarch *arch,
|
||||
unsigned int addr_size,
|
||||
const gdb_byte *op_ptr,
|
||||
const gdb_byte *op_end,
|
||||
|
|
|
|||
|
|
@ -663,8 +663,8 @@ struct symbol_computed_ops
|
|||
the caller will generate the right code in the process of
|
||||
treating this as an lvalue or rvalue. */
|
||||
|
||||
void (*tracepoint_var_ref) (struct symbol *symbol, struct gdbarch *gdbarch,
|
||||
struct agent_expr *ax, struct axs_value *value);
|
||||
void (*tracepoint_var_ref) (struct symbol *symbol, struct agent_expr *ax,
|
||||
struct axs_value *value);
|
||||
|
||||
/* Generate C code to compute the location of SYMBOL. The C code is
|
||||
emitted to STREAM. GDBARCH is the current architecture and PC is
|
||||
|
|
|
|||
Loading…
Reference in New Issue