+2019-12-23 Alan Modra <amodra@gmail.com>
+
+ * dwarf.h (read_leb128): Update prototype.
+ (report_leb_status): New inline function.
+ (SKIP_ULEB, SKIP_SLEB, READ_ULEB, READ_SLEB): Define.
+ * dwarf.c: Use above macros throughout file. Formatting.
+ (read_leb128): Reorder params. Add status return param.
+ Don't stop reading until finding terminator or end of data.
+ Detect loss of significant bits. Sign extend only on
+ terminating byte.
+ (read_sleb128, read_uleb128): Delete functions.
+ (SKIP_ULEB, SKIP_SLEB, READ_ULEB, READ_SLEB): Delete macros.
+ (read_and_print_leb128): Rewrite.
+ (process_extended_line_op): Return a size_t. Use size_t vars.
+ Adjust to suit new macros. Add proper name size to "data" when
+ processing DW_LNE_define_file.
+ (process_abbrev_section): Adjust to suit new macros.
+ (decode_location_expression, skip_attr_bytes): Likewise.
+ (get_type_signedness): Likewise.
+ (read_and_display_attr_value): Likewise. Consolidate block code.
+ (process_debug_info): Adjust to suit new macros.
+ (display_formatted_table, display_debug_lines_raw): Likewise.
+ (display_debug_lines_decoded): Likewise. Properly check for end
+ of DW_LNS_extended_op.
+ (display_debug_macinfo): Adjust to suit new macros.
+ (get_line_filename_and_dirname, display_debug_macro): Likewise.
+ (display_view_pair_list): Likewise. Don't back off when hitting
+ end of data.
+ (display_loc_list): Adjust to suit new macros.
+ (display_loclists_list, display_loc_list_dwo): Likewise.
+ (display_debug_rnglists_list, read_cie): Likewise.
+ (display_debug_frames): Likewise.
+ * readelf.c: Use new ULEB macros throughout file.
+ (read_uleb128): Delete.
+ (decode_arm_unwind_bytecode): Use read_leb128.
+ (decode_tic6x_unwind_bytecode): Likewise.
+ (display_tag_value): Adjust to suit new macros.
+ (display_arc_attribute, display_arm_attribute): Likewise.
+ (display_gnu_attribute, display_power_gnu_attribute): Likewise.
+ (display_s390_gnu_attribute, display_sparc_gnu_attribute): Likewise.
+ (display_mips_gnu_attribute, display_tic6x_attribute): Likewise.
+ (display_msp430x_attribute, display_msp430_gnu_attribute): Likewise.
+ (display_riscv_attribute, process_attributes): Likewise.
+