1 @c This file contains the entry for the -w/--debug-dump (readelf) and
2 @c -W/--dwarf (objdump) option that is common to both readelf and objdump.
4 Displays the contents of the DWARF debug sections in the file, if any
5 are present. Compressed debug sections are automatically decompressed
6 (temporarily) before they are displayed. If one or more of the
7 optional letters or words follows the switch then only those type(s)
8 of data will be dumped. The letters and words refer to the following
11 @c Please Keep This Table Alpha Sorted.
15 Displays the contents of the @samp{.debug_abbrev} section.
19 Displays the contents of the @samp{.debug_addr} section.
23 Displays the contents of the @samp{.debug_cu_index} and/or
24 @samp{.debug_tu_index} sections.
28 Display the raw contents of a @samp{.debug_frame} section.
32 Display the interpreted contents of a @samp{.debug_frame} section.
36 Displays the contents of the @samp{.gdb_index} and/or
37 @samp{.debug_names} sections.
41 Displays the contents of the @samp{.debug_info} section. Note: the
42 output from this option can also be restricted by the use of the
43 @option{--dwarf-depth} and @option{--dwarf-start} options.
47 Displays the contents of the @samp{.gnu_debuglink},
48 @samp{.gnu_debugaltlink} and @samp{.debug_sup} sections, if any of
49 them are present. Also displays any links to separate dwarf object
50 files (dwo), if they are specified by the DW_AT_GNU_dwo_name or
51 DW_AT_dwo_name attributes in the @samp{.debug_info} section.
55 Display the contents of any selected debug sections that are found in
56 linked, separate debug info file(s). This can result in multiple
57 versions of the same debug section being displayed if it exists in
60 In addition, when displaying DWARF attributes, if a form is found that
61 references the separate debug info file, then the referenced contents
62 will also be displayed.
64 Note - in some distributions this option is enabled by default. It
65 can be disabled via the @option{N} debug option. The default can be
66 chosen when configuring the binutils via the
67 @option{--enable-follow-debug-links=yes} or
68 @option{--enable-follow-debug-links=no} options. If these are not
69 used then the default is to enable the following of debug links.
71 Note - if support for the debuginfod protocol was enabled when the
72 binutils were built then this option will also include an attempt to
73 contact any debuginfod servers mentioned in the @var{DEBUGINFOD_URLS}
74 environment variable. This could take some time to resolve. This
75 behaviour can be disabled via the @option{=do-not-use-debuginfod} debug
79 @itemx =no-follow-links
80 Disables the following of links to separate debug info files.
83 @itemx =use-debuginfod
84 Enables contacting debuginfod servers if there is a need to follow
85 debug links. This is the default behaviour.
88 @itemx =do-not-use-debuginfod
89 Disables contacting debuginfod servers when there is a need to follow
94 Displays the contents of the @samp{.debug_line} section in a raw
99 Displays the interpreted contents of the @samp{.debug_line} section.
103 Displays the contents of the @samp{.debug_macro} and/or
104 @samp{.debug_macinfo} sections.
108 Displays the contents of the @samp{.debug_loc} and/or
109 @samp{.debug_loclists} sections.
113 Displays the contents of the @samp{.debug_str_offsets} section.
117 Displays the contents of the @samp{.debug_pubnames} and/or
118 @samp{.debug_gnu_pubnames} sections.
122 Displays the contents of the @samp{.debug_aranges} section.
126 Displays the contents of the @samp{.debug_ranges} and/or
127 @samp{.debug_rnglists} sections.
131 Displays the contents of the @samp{.debug_str}, @samp{.debug_line_str}
132 and/or @samp{.debug_str_offsets} sections.
136 Displays the contents of the @samp{.debug_pubtypes} and/or
137 @samp{.debug_gnu_pubtypes} sections.
140 @itemx =trace_aranges
141 Displays the contents of the @samp{.trace_aranges} section.
145 Displays the contents of the @samp{.trace_abbrev} section.
149 Displays the contents of the @samp{.trace_info} section.
153 Note: displaying the contents of @samp{.debug_static_funcs},
154 @samp{.debug_static_vars} and @samp{debug_weaknames} sections is not
157 @item --dwarf-depth=@var{n}
158 Limit the dump of the @code{.debug_info} section to @var{n} children.
159 This is only useful with @option{--debug-dump=info}. The default is
160 to print all DIEs; the special value 0 for @var{n} will also have this
163 With a non-zero value for @var{n}, DIEs at or deeper than @var{n}
164 levels will not be printed. The range for @var{n} is zero-based.
166 @item --dwarf-start=@var{n}
167 Print only DIEs beginning with the DIE numbered @var{n}. This is only
168 useful with @option{--debug-dump=info}.
170 If specified, this option will suppress printing of any header
171 information and all DIEs before the DIE numbered @var{n}. Only
172 siblings and children of the specified DIE will be printed.
174 This can be used in conjunction with @option{--dwarf-depth}.