dwarf2out: Split CFI construction routines into a new file.

Excepting changing some functions from static to extern, this
patch contains code motion only.  The split is not very clean
at this point, but will be refined as CFI construction is turned
into its own proper pass.

        * dwarf2cfi.c: New file.
        * Makefile.in (OBJS): Add it.
        (GTFILES): Add dwarf2cfi.c and dwarf2out.h.
        * gengtype.c (open_base_files): Include dwarf2out.h.
        * coretypes.h (enum var_init_status): Move from ...
        * rtl.h: ... here.
        * dwarf2out.c (saved_do_cfi_asm, dwarf2out_do_frame,
        dwarf2out_do_cfi_asm, cie_cfi_vec, dwarf2out_cfi_label_num,
        expand_builtin_dwarf_sp_column, init_return_column_size,
        expand_builtin_init_dwarf_reg_sizes, new_cfi, add_cfi,
        dwarf2out_cfi_label, emit_cfa_remember, any_cfis_emitted, add_fde_cfi,
        lookup_cfa_1, lookup_cfa, cfa, cfa_store, cfa_remember, args_size,
        old_args_size, cfa_equal_p, def_cfa_1, reg_save, initial_return_save,
        stack_adjust_offset, barrier_args_size, compute_barrier_args_size_1,
        compute_barrier_args_size, dwarf2out_args_size,
        dwarf2out_stack_adjust, dwarf2out_notice_stack_adjust,
        queued_reg_saves, reg_saved_in_data, regs_saved_in_regs,
        compare_reg_or_pc, record_reg_saved_in_reg, last_reg_save_label,
        queue_reg_save, dwarf2out_flush_queued_reg_saves,
        clobbers_queued_reg_save, reg_saved_in, cfa_temp,
        dwarf2out_frame_debug_def_cfa, dwarf2out_frame_debug_adjust_cfa,
        dwarf2out_frame_debug_cfa_offset, dwarf2out_frame_debug_cfa_register,
        dwarf2out_frame_debug_cfa_expression,
        dwarf2out_frame_debug_cfa_restore,
        dwarf2out_frame_debug_cfa_window_save, dwarf2out_frame_debug_expr,
        dwarf2out_frame_debug, dwarf2out_frame_debug_init,
        dwarf2out_cfi_begin_epilogue, dwarf2out_frame_debug_restore_state,
        get_cfa_from_loc_descr): Move to dwarf2cfi.c.
        (dw_cfi_ref, dw_fde_ref, dw_cfi_oprnd_ref, enum dw_cfi_oprnd_type,
        dw_cfi_oprnd, dw_cfi_node, cfi_vec, dw_cfa_location, dw_fde_node,
        dw_val_ref, dw_die_ref, const_dw_die_ref, dw_loc_descr_ref,
        dw_loc_list_ref, enum dw_val_class, dw_vec_const, dw_val_node,
        dw_loc_descr_node): Move to dwarf2out.h.
        (current_fde, output_cfi_directive, build_cfa_loc, get_address_mode,
        mem_loc_descriptor): Export.
        (build_cfa_aligned_loc): Export.  Take CFA as a parameter.
        (dwarf2out_frame_init): Extract CIE generation code to
        dwarf2cfi_frame_init.

git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@176015 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 10 insertions, 0 deletions

diff --git a/gcc/coretypes.h b/gcc/coretypes.h
index 20932b8d9f3..45cdbbd6fd6 100644
--- a/gcc/coretypes.h
+++ b/gcc/coretypes.h
@@ -136,6 +136,16 @@ enum node_frequency {
   NODE_FREQUENCY_HOT
 };
 
+/* Possible initialization status of a variable.   When requested
+   by the user, this information is tracked and recorded in the DWARF
+   debug information, along with the variable's location.  */
+enum var_init_status
+{
+  VAR_INIT_STATUS_UNKNOWN,
+  VAR_INIT_STATUS_UNINITIALIZED,
+  VAR_INIT_STATUS_INITIALIZED
+};
+
 
 struct edge_def;
 typedef struct edge_def *edge;