dwarf2: Move CFI output routines to dwarf2cfi.c.

        * defaults.h (DWARF2_ADDR_SIZE, DWARF_OFFSET_SIZE,
        DWARF_TYPE_SIGNATURE_SIZE): Move from ...
        * dwarf2out.c: ... here.
        (output_all_cfis): Remove.
        (dwarf2out_switch_text_section): Use output_cfis directly.
        (size_of_locs): Export.
        (output_loc_sequence, output_loc_sequence_raw): Export.
        (div_data_align, need_data_align_sf_opcode, dwarf_cfi_name, output_cfi,
        output_cfi_directive, dwarf2out_emit_cfi, output_cfis, output_cfa_loc,
        output_cfa_loc_raw): Move to ...
        * dwarfcfi.c: ... here.
        * dwarf2out.h: Update decls.

From-SVN: r176107

gcc/ChangeLog

 2011-07-09  Richard Henderson  <rth@redhat.com>
 
+	* defaults.h (DWARF2_ADDR_SIZE, DWARF_OFFSET_SIZE,
+	DWARF_TYPE_SIGNATURE_SIZE): Move from ...
+	* dwarf2out.c: ... here.
+	(output_all_cfis): Remove.
+	(dwarf2out_switch_text_section): Use output_cfis directly.
+	(size_of_locs): Export.
+	(output_loc_sequence, output_loc_sequence_raw): Export.
+	(div_data_align, need_data_align_sf_opcode, dwarf_cfi_name, output_cfi,
+	output_cfi_directive, dwarf2out_emit_cfi, output_cfis, output_cfa_loc,
+	output_cfa_loc_raw): Move to ...
+	* dwarfcfi.c: ... here.
+	* dwarf2out.h: Update decls.
+
+2011-07-09  Richard Henderson  <rth@redhat.com>
+
 	* defaults.h (DWARF_CIE_DATA_ALIGNMENT, DWARF_FRAME_RETURN_COLUMN,
 	DWARF_FRAME_REGNUM, DWARF2_FRAME_REG_OUT): Move from ...
 	* dwarf2cfi.c: ... here.

gcc/defaults.h

@@ -453,6 +453,28 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define DWARF2_FRAME_REG_OUT(REGNO, FOR_EH) (REGNO)
 #endif
 
+/* The size of addresses as they appear in the Dwarf 2 data.
+   Some architectures use word addresses to refer to code locations,
+   but Dwarf 2 info always uses byte addresses.  On such machines,
+   Dwarf 2 addresses need to be larger than the architecture's
+   pointers.  */
+#ifndef DWARF2_ADDR_SIZE
+#define DWARF2_ADDR_SIZE (POINTER_SIZE / BITS_PER_UNIT)
+#endif
+
+/* The size in bytes of a DWARF field indicating an offset or length
+   relative to a debug info section, specified to be 4 bytes in the
+   DWARF-2 specification.  The SGI/MIPS ABI defines it to be the same
+   as PTR_SIZE.  */
+#ifndef DWARF_OFFSET_SIZE
+#define DWARF_OFFSET_SIZE 4
+#endif
+
+/* The size in bytes of a DWARF 4 type signature.  */
+#ifndef DWARF_TYPE_SIGNATURE_SIZE
+#define DWARF_TYPE_SIGNATURE_SIZE 8
+#endif
+
 /* Default sizes for base C types.  If the sizes are different for
    your target, you should override these values by defining the
    appropriate symbols in your tm.h file.  */

gcc/dwarf2out.h

@@ -228,11 +228,18 @@ extern struct dw_loc_descr_struct *mem_loc_descriptor
 extern enum machine_mode get_address_mode (rtx mem);
 extern dw_fde_ref dwarf2out_alloc_current_fde (void);
 
+extern unsigned long size_of_locs (dw_loc_descr_ref);
+extern void output_loc_sequence (dw_loc_descr_ref, int);
+extern void output_loc_sequence_raw (dw_loc_descr_ref);
+
 /* Interface from dwarf2cfi.c to dwarf2out.c.  */
 extern void lookup_cfa_1 (dw_cfi_ref cfi, dw_cfa_location *loc,
 			  dw_cfa_location *remember);
 extern bool cfa_equal_p (const dw_cfa_location *, const dw_cfa_location *);
 
+extern void output_cfi (dw_cfi_ref, dw_fde_ref, int);
+extern void output_cfis (cfi_vec, int, bool, dw_fde_ref, bool);
+
 extern GTY(()) cfi_vec cie_cfi_vec;
 
 /* Interface from dwarf2*.c to the rest of the compiler.  */