Add support for --dwarf-[3|4|5] to assembler command line.
PR 25612 * as.c (dwarf_level): Define. (show_usage): Add --gdwarf-3, --gdwarf-4 and --gdwarf-5. (parse_args): Add support for the new options. as.h (dwarf_level): Prototype. * dwarf2dbg.c (DWARF2_VERSION): Use dwarf_level as default version value. * config/tc-ia64.h (DWARF2_VERISION): Update definition. (DWARF2_LINE_VERSION): Remove definition. * doc/as.texi: Document the new options.
This commit is contained in:
Nick Clifton
parent
09f2921cc9
commit
31bf18645d
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@ -1,3 +1,16 @@
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2020-03-06 Nick Clifton <nickc@redhat.com>
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PR 25612
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* as.c (dwarf_level): Define.
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(show_usage): Add --gdwarf-3, --gdwarf-4 and --gdwarf-5.
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(parse_args): Add support for the new options.
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as.h (dwarf_level): Prototype.
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* dwarf2dbg.c (DWARF2_VERSION): Use dwarf_level as default version
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value.
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* config/tc-ia64.h (DWARF2_VERISION): Update definition.
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(DWARF2_LINE_VERSION): Remove definition.
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* doc/as.texi: Document the new options.
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2020-03-06 Nick Clifton <nickc@redhat.com>
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PR 25572
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57
gas/as.c
57
gas/as.c
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@ -102,6 +102,9 @@ int verbose = 0;
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MD_AFTER_PARSE_ARGS. */
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int flag_dwarf_cie_version = -1;
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/* The maximum level of DWARF DEBUG information we should manufacture. */
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unsigned int dwarf_level = 0;
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#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
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int flag_use_elf_stt_common = DEFAULT_GENERATE_ELF_STT_COMMON;
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bfd_boolean flag_generate_build_notes = DEFAULT_GENERATE_BUILD_NOTES;
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@ -338,7 +341,7 @@ Options:\n\
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fprintf (stream, _("\
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--gstabs+ generate STABS debug info with GNU extensions\n"));
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fprintf (stream, _("\
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--gdwarf-2 generate DWARF2 debugging information\n"));
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--gdwarf-<N> generate DWARF<N> debugging information. 2 <= <N> <= 5\n"));
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fprintf (stream, _("\
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--gdwarf-sections generate per-function section names for DWARF line information\n"));
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fprintf (stream, _("\
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@ -484,7 +487,10 @@ parse_args (int * pargc, char *** pargv)
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OPTION_DEPFILE,
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OPTION_GSTABS,
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OPTION_GSTABS_PLUS,
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OPTION_GDWARF2,
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OPTION_GDWARF_2,
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OPTION_GDWARF_3,
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OPTION_GDWARF_4,
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OPTION_GDWARF_5,
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OPTION_GDWARF_SECTIONS,
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OPTION_GDWARF_CIE_VERSION,
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OPTION_STRIP_LOCAL_ABSOLUTE,
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@ -537,10 +543,13 @@ parse_args (int * pargc, char *** pargv)
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,{"generate-missing-build-notes", required_argument, NULL, OPTION_ELF_BUILD_NOTES}
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#endif
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,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
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,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF2}
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/* GCC uses --gdwarf-2 but GAS uses to use --gdwarf2,
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,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF_2}
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,{"gdwarf-3", no_argument, NULL, OPTION_GDWARF_3}
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,{"gdwarf-4", no_argument, NULL, OPTION_GDWARF_4}
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,{"gdwarf-5", no_argument, NULL, OPTION_GDWARF_5}
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/* GCC uses --gdwarf-2 but GAS used to to use --gdwarf2,
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so we keep it here for backwards compatibility. */
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,{"gdwarf2", no_argument, NULL, OPTION_GDWARF2}
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,{"gdwarf2", no_argument, NULL, OPTION_GDWARF_2}
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,{"gdwarf-sections", no_argument, NULL, OPTION_GDWARF_SECTIONS}
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,{"gdwarf-cie-version", required_argument, NULL, OPTION_GDWARF_CIE_VERSION}
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,{"gen-debug", no_argument, NULL, 'g'}
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@ -817,7 +826,10 @@ This program has absolutely no warranty.\n"));
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if (md_debug_format_selector)
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debug_type = md_debug_format_selector (& use_gnu_debug_info_extensions);
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else if (IS_ELF)
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debug_type = DEBUG_DWARF2;
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{
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debug_type = DEBUG_DWARF2;
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dwarf_level = 2;
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}
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else
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debug_type = DEBUG_STABS;
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break;
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@ -829,8 +841,24 @@ This program has absolutely no warranty.\n"));
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debug_type = DEBUG_STABS;
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break;
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case OPTION_GDWARF2:
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case OPTION_GDWARF_2:
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debug_type = DEBUG_DWARF2;
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dwarf_level = 2;
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break;
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case OPTION_GDWARF_3:
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debug_type = DEBUG_DWARF2;
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dwarf_level = 3;
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break;
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case OPTION_GDWARF_4:
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debug_type = DEBUG_DWARF2;
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dwarf_level = 4;
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break;
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case OPTION_GDWARF_5:
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debug_type = DEBUG_DWARF2;
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dwarf_level = 5;
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break;
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case OPTION_GDWARF_SECTIONS:
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@ -845,6 +873,21 @@ This program has absolutely no warranty.\n"));
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|| flag_dwarf_cie_version == 2
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|| flag_dwarf_cie_version > 4)
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as_fatal (_("Invalid --gdwarf-cie-version `%s'"), optarg);
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switch (flag_dwarf_cie_version)
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{
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case 1:
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if (dwarf_level < 2)
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dwarf_level = 2;
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break;
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case 3:
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if (dwarf_level < 3)
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dwarf_level = 3;
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break;
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default:
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if (dwarf_level < 4)
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dwarf_level = 4;
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break;
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}
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break;
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case 'J':
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1
gas/as.h
1
gas/as.h
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@ -413,6 +413,7 @@ extern enum debug_info_type debug_type;
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extern int use_gnu_debug_info_extensions;
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COMMON bfd_boolean flag_dwarf_sections;
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extern int flag_dwarf_cie_version;
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extern unsigned int dwarf_level;
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/* Maximum level of macro nesting. */
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extern int max_macro_nest;
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@ -325,6 +325,5 @@ typedef struct unwind_record
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/* VMS backtraces expect dwarf version 3. */
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#ifdef TE_VMS
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#define DWARF2_VERSION 3
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#define DWARF2_LINE_VERSION 3
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#define DWARF2_VERSION (dwarf_level < 3 ? 3 : debug_level)
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#endif
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@ -230,7 +230,7 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}.
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[@b{--compress-debug-sections}] [@b{--nocompress-debug-sections}]
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[@b{--debug-prefix-map} @var{old}=@var{new}]
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[@b{--defsym} @var{sym}=@var{val}] [@b{-f}] [@b{-g}] [@b{--gstabs}]
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[@b{--gstabs+}] [@b{--gdwarf-2}] [@b{--gdwarf-sections}]
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[@b{--gstabs+}] [@b{--gdwarf-<N>}] [@b{--gdwarf-sections}]
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[@b{--gdwarf-cie-version}=@var{VERSION}]
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[@b{--help}] [@b{-I} @var{dir}] [@b{-J}]
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[@b{-K}] [@b{-L}] [@b{--listing-lhs-width}=@var{NUM}]
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@ -763,6 +763,27 @@ Generate DWARF2 debugging information for each assembler line. This
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may help debugging assembler code, if the debugger can handle it. Note---this
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option is only supported by some targets, not all of them.
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@item --gdwarf-3
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This option is the same as the @option{--gdwarf-2} option, except that it
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allows for the possibility of the generation of extra debug information as per
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version 3 of the DWARF specification. Note - enabling this option does not
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guarantee the generation of any extra infortmation, the choice to do so is on a
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per target basis.
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@item --gdwarf-4
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This option is the same as the @option{--gdwarf-2} option, except that it
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allows for the possibility of the generation of extra debug information as per
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version 4 of the DWARF specification. Note - enabling this option does not
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guarantee the generation of any extra infortmation, the choice to do so is on a
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per target basis.
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@item --gdwarf-5
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This option is the same as the @option{--gdwarf-2} option, except that it
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allows for the possibility of the generation of extra debug information as per
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version 4 of the DWARF specification. Note - enabling this option does not
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guarantee the generation of any extra infortmation, the choice to do so is on a
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per target basis.
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@item --gdwarf-sections
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Instead of creating a .debug_line section, create a series of
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.debug_line.@var{foo} sections where @var{foo} is the name of the
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@ -89,7 +89,7 @@
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#endif
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#ifndef DWARF2_VERSION
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#define DWARF2_VERSION 2
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#define DWARF2_VERSION dwarf_level
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#endif
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/* The .debug_aranges version has been 2 in DWARF version 2, 3 and 4. */
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