Home Original page

PING: Re: [PATCH 3/3] ld: Extend options for altering orphan handling behaviour.

Andrew Burgess andrew.burgess@embecosm.com
Thu Aug 27 07:54:00 GMT 2015 
Nick, any feedback either way would be great.

Thanks,
Andrew

* Andrew Burgess <andrew.burgess@embecosm.com> [2015-08-04 12:02:46 +0100]:

> * Alan Modra <amodra@gmail.com> [2015-07-30 14:30:04 +0930]:
> 
> >
> > I think this is a reasonable extension and replacement of the existing
> > --warn-orphan code.  Keeping the old option for backward compatibility
> > probably isn't needed since --warn-orphan hasn't been made available
> > in any official release.  Some comments on the patch:
> 
> Thanks for your review on all parts of this patch series.  I have
> pushed the other patches, the test system improvements as them seem
> useful regardless of this patch.
> 
> I have addressed your comments on this patch, specifically:
> 
>   - removed the assert,
>   - added missing newlines.
> 
> > Here too.  Otherwise looks good, but give Nick a chance to veto before
> > committing.
> 
> I agree, and will wait for feedback from Nick before progressing this.
> 
> Thanks,
> Andrew
> 
> --
> 
> Replace the options --warn-orphan and --no-warn-orphan with a single
> option --orphan-handling=MODE, where mode can be place, warn, error, and
> discard.
> 
> Mode 'place' is the default, and is the current behaviour, placing the
> orphan section into a suitable output section.
> 
> Mode 'warn' is the same as '--warn-orphan'.  The orphan is also placed
> using the same algorithm as for 'place'.
> 
> Mode 'error' is the same as '--warn-orphan' and '--fatal-warnings'.
> 
> Mode 'discard' assigns all output sections to the /DISCARD/ section.
> 
> ld/ChangeLog:
> 
> 	* ld.h (enum orphan_handling_enum): New.
> 	(ld_config_type): Remove warn_orphan, add orphan_handling.
> 	* ldemul.c (ldemul_place_orphan): Remove warning about orphan
> 	sections.
> 	* ldlang.c (ldlang_place_orphan): New function.
> 	(lang_place_orphans): Call ldlang_place_orphan.
> 	* ldlex.h (enum option_values): Remove OPTION_WARN_ORPHAN and
> 	OPTION_NO_WARN_ORPHAN, add OPTION_ORPHAN_HANDLING.
> 	* lexsup.c (ld_options): Remove 'warn-orphan' and
> 	'no-warn-orphan', add 'orphan-handling'.
> 	(parse_args): Remove handling for OPTION_WARN_ORPHAN and
> 	OPTION_NO_WARN_ORPHAN, add handling for OPTION_ORPHAN_HANDLING.
> 	* NEWS: Replace text about --warn-orphan with --orphan-handling.
> 	* ld.texinfo (Options): Remove --warn-orphan entry and add
> 	entry on --orphan-handling.
> 	(Orphan Sections): Add reference to relevant command line options.
> 
> ld/testsuite/ChangeLog:
> 
> 	* ld-elf/elf.exp: Switch to rely on run_dump_test.
> 	* ld-elf/orphan-5.l: Update expected output.
> 	* ld-elf/orphan-5.d: New file.
> 	* ld-elf/orphan-6.d: New file.
> 	* ld-elf/orphan-6.l: New file.
> 	* ld-elf/orphan-7.d: New file.
> 	* ld-elf/orphan-7.map: New file.
> 	* ld-elf/orphan-8.d: New file.
> 	* ld-elf/orphan-8.map: New file.
> ---
>  ld/ChangeLog                     | 19 +++++++++++
>  ld/NEWS                          |  6 +++-
>  ld/ld.h                          | 23 +++++++++++--
>  ld/ld.texinfo                    | 44 ++++++++++++++++++-------
>  ld/ldemul.c                      |  4 ---
>  ld/ldlang.c                      | 71 ++++++++++++++++++++++++++++------------
>  ld/ldlex.h                       |  3 +-
>  ld/lexsup.c                      | 27 +++++++++------
>  ld/testsuite/ChangeLog           | 12 +++++++
>  ld/testsuite/ld-elf/elf.exp      | 12 -------
>  ld/testsuite/ld-elf/orphan-5.d   |  4 +++
>  ld/testsuite/ld-elf/orphan-5.l   |  4 +--
>  ld/testsuite/ld-elf/orphan-6.d   |  4 +++
>  ld/testsuite/ld-elf/orphan-6.l   |  5 +++
>  ld/testsuite/ld-elf/orphan-7.d   |  4 +++
>  ld/testsuite/ld-elf/orphan-7.map |  7 ++++
>  ld/testsuite/ld-elf/orphan-8.d   |  4 +++
>  ld/testsuite/ld-elf/orphan-8.map |  7 ++++
>  18 files changed, 195 insertions(+), 65 deletions(-)
>  create mode 100644 ld/testsuite/ld-elf/orphan-5.d
>  create mode 100644 ld/testsuite/ld-elf/orphan-6.d
>  create mode 100644 ld/testsuite/ld-elf/orphan-6.l
>  create mode 100644 ld/testsuite/ld-elf/orphan-7.d
>  create mode 100644 ld/testsuite/ld-elf/orphan-7.map
>  create mode 100644 ld/testsuite/ld-elf/orphan-8.d
>  create mode 100644 ld/testsuite/ld-elf/orphan-8.map
> 
> diff --git a/ld/ChangeLog b/ld/ChangeLog
> index 23b12c8..f0a97fa 100644
> --- a/ld/ChangeLog
> +++ b/ld/ChangeLog
> @@ -1,3 +1,22 @@
> +2015-07-28  Andrew Burgess  <andrew.burgess@embecosm.com>
> +
> +	* ld.h (enum orphan_handling_enum): New.
> +	(ld_config_type): Remove warn_orphan, add orphan_handling.
> +	* ldemul.c (ldemul_place_orphan): Remove warning about orphan
> +	sections.
> +	* ldlang.c (ldlang_place_orphan): New function.
> +	(lang_place_orphans): Call ldlang_place_orphan.
> +	* ldlex.h (enum option_values): Remove OPTION_WARN_ORPHAN and
> +	OPTION_NO_WARN_ORPHAN, add OPTION_ORPHAN_HANDLING.
> +	* lexsup.c (ld_options): Remove 'warn-orphan' and
> +	'no-warn-orphan', add 'orphan-handling'.
> +	(parse_args): Remove handling for OPTION_WARN_ORPHAN and
> +	OPTION_NO_WARN_ORPHAN, add handling for OPTION_ORPHAN_HANDLING.
> +	* NEWS: Replace text about --warn-orphan with --orphan-handling.
> +	* ld.texinfo (Options): Remove --warn-orphan entry and add
> +	entry on --orphan-handling.
> +	(Orphan Sections): Add reference to relevant command line options.
> +
>  2015-08-04  Andrew Burgess  <andrew.burgess@embecosm.com>
>  
>  	* ld.texinfo (Options): Document --require-defined option.
> diff --git a/ld/NEWS b/ld/NEWS
> index f9ef88d..864384b 100644
> --- a/ld/NEWS
> +++ b/ld/NEWS
> @@ -6,7 +6,11 @@
>  * New command line option for ELF targets to compress DWARF debug
>    sections, --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi].
>  
> -* Add --warn-orphan option to report orphan sections.
> +* New command line option, --orphan-handling=[place|warn|error|discard], to
> +  adjust how orphan sections are handled.  The default is 'place' which gives
> +  the current behaviour, 'warn' and 'error' issue a warning or error
> +  respectively when orphan sections are found, and 'discard' will discard all
> +  orphan sections.
>  
>  * Add support for LLVM plugin.
>  
> diff --git a/ld/ld.h b/ld/ld.h
> index e6ebaae..d84ec4e 100644
> --- a/ld/ld.h
> +++ b/ld/ld.h
> @@ -207,6 +207,25 @@ extern args_type command_line;
>  
>  typedef int token_code_type;
>  
> +/* Different ways we can handle orphan sections.  */
> +
> +enum orphan_handling_enum {
> +  /* The classic strategy, find a suitable section to place the orphan
> +     into.  */
> +  orphan_handling_place = 0,
> +
> +  /* Discard any orphan sections as though they were assign to the section
> +     /DISCARD/.  */
> +  orphan_handling_discard,
> +
> +  /* Find somewhere to place the orphan section, as with
> +     ORPHAN_HANDLING_PLACE, but also issue a warning.  */
> +  orphan_handling_warn,
> +
> +  /* Issue a fatal error if any orphan sections are found.  */
> +  orphan_handling_error,
> +};
> +
>  typedef struct {
>    bfd_boolean magic_demand_paged;
>    bfd_boolean make_executable;
> @@ -229,8 +248,8 @@ typedef struct {
>    /* If TRUE, only warn once about a particular undefined symbol.  */
>    bfd_boolean warn_once;
>  
> -  /* If TRUE, issue warning messages when orphan sections are encountered.  */
> -  bfd_boolean warn_orphan;
> +  /* How should we deal with orphan sections.  */
> +  enum orphan_handling_enum orphan_handling;
>  
>    /* If TRUE, warn if multiple global-pointers are needed (Alpha
>       only).  */
> diff --git a/ld/ld.texinfo b/ld/ld.texinfo
> index bddf926..19cf2df 100644
> --- a/ld/ld.texinfo
> +++ b/ld/ld.texinfo
> @@ -1001,6 +1001,35 @@ with @samp{-Ur}; once the constructor table has been built, it cannot
>  be added to.  Use @samp{-Ur} only for the last partial link, and
>  @samp{-r} for the others.
>  
> +@kindex --orphan-handling=@var{MODE}
> +@cindex orphan sections
> +@cindex sections, orphan
> +@item --orphan-handling=@var{MODE}
> +Control how orphan sections are handled.  An orphan section is one not
> +specifically mentioned in a linker script.  @xref{Orphan Sections}.
> +
> +@var{MODE} can have any of the following values:
> +
> +@table @code
> +@item place
> +Orphan sections are placed into a suitable output section following
> +the strategy described in @ref{Orphan Sections}.  The option
> +@samp{--unique} also effects how sections are placed.
> +
> +@item discard
> +All orphan sections are discarded, by placing them in the
> +@samp{/DISCARD/} section (@pxref{Output Section Discarding}).
> +
> +@item warn
> +The linker will place the orphan section as for @code{place} and also
> +issue a warning.
> +
> +@item error
> +The linker will exit with an error if any orphan section is found.
> +@end table
> +
> +The default if @samp{--orphan-handling} is not given is @code{place}.
> +
>  @kindex --unique[=@var{SECTION}]
>  @item --unique[=@var{SECTION}]
>  Creates a separate output section for every input section matching
> @@ -2105,17 +2134,6 @@ option causes a warning to be issued whenever this case occurs.
>  Only warn once for each undefined symbol, rather than once per module
>  which refers to it.
>  
> -@kindex --warn-orphan
> -@kindex --no-warn-orphan
> -@cindex warnings, on orphan sections
> -@cindex orphan sections, warnings on
> -@item --warn-orphan
> -The @option{--warn-orphan} option tells the linker to generate a
> -warning message whenever it has to place an orphan section into the
> -output file.  @xref{Orphan Sections}.  The @option{--no-warn-orphan}
> -option restores the default behaviour of just silently placing these
> -sections.
> -
>  @kindex --warn-section-align
>  @cindex warnings, on section alignment
>  @cindex section alignment, warnings on
> @@ -5569,6 +5587,10 @@ at the end of the file.
>  For ELF targets, the attribute of the section includes section type as
>  well as section flag.
>  
> +The command line options @samp{--orphan-handling} and @samp{--unique}
> +(@pxref{Options,,Command Line Options}) can be used to control which
> +output sections an orphan is placed in.
> +
>  If an orphaned section's name is representable as a C identifier then
>  the linker will automatically @pxref{PROVIDE} two symbols:
>  __start_SECNAME and __stop_SECNAME, where SECNAME is the name of the
> diff --git a/ld/ldemul.c b/ld/ldemul.c
> index 4898892..8b2cae7 100644
> --- a/ld/ldemul.c
> +++ b/ld/ldemul.c
> @@ -120,10 +120,6 @@ ldemul_open_dynamic_archive (const char *arch, search_dirs_type *search,
>  lang_output_section_statement_type *
>  ldemul_place_orphan (asection *s, const char *name, int constraint)
>  {
> -  if (config.warn_orphan)
> -    einfo (_("%P: Warning: input section '%s' from file '%B' is not mentioned in linker script\n"),
> -	   name, s->owner);
> -
>    if (ld_emulation->place_orphan)
>      return (*ld_emulation->place_orphan) (s, name, constraint);
>    return NULL;
> diff --git a/ld/ldlang.c b/ld/ldlang.c
> index 0d6419d..93f95dd 100644
> --- a/ld/ldlang.c
> +++ b/ld/ldlang.c
> @@ -6099,6 +6099,55 @@ lang_one_common (struct bfd_link_hash_entry *h, void *info)
>    return TRUE;
>  }
>  
> +/* Handle a single orphan section S, placing the orphan into an appropriate
> +   output section.  The effects of the --orphan-handling command line
> +   option are handled here.  */
> +
> +static void
> +ldlang_place_orphan (asection *s)
> +{
> +  if (config.orphan_handling == orphan_handling_discard)
> +    {
> +      lang_output_section_statement_type *os;
> +      os = lang_output_section_statement_lookup (DISCARD_SECTION_NAME, 0,
> +						 TRUE);
> +      if (os->addr_tree == NULL
> +	  && (link_info.relocatable
> +	      || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0))
> +	os->addr_tree = exp_intop (0);
> +      lang_add_section (&os->children, s, NULL, os);
> +    }
> +  else
> +    {
> +      lang_output_section_statement_type *os;
> +      const char *name = s->name;
> +      int constraint = 0;
> +
> +      if (config.orphan_handling == orphan_handling_error)
> +	einfo ("%X%P: error: unplaced orphan section `%A' from `%B'.\n",
> +	       s, s->owner);
> +
> +      if (config.unique_orphan_sections || unique_section_p (s, NULL))
> +	constraint = SPECIAL;
> +
> +      os = ldemul_place_orphan (s, name, constraint);
> +      if (os == NULL)
> +	{
> +	  os = lang_output_section_statement_lookup (name, constraint, TRUE);
> +	  if (os->addr_tree == NULL
> +	      && (link_info.relocatable
> +		  || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0))
> +	    os->addr_tree = exp_intop (0);
> +	  lang_add_section (&os->children, s, NULL, os);
> +	}
> +
> +      if (config.orphan_handling == orphan_handling_warn)
> +	einfo ("%P: warning: orphan section `%A' from `%B' being "
> +	       "placed in section `%s'.\n",
> +	       s, s->owner, os->name);
> +    }
> +}
> +
>  /* Run through the input files and ensure that every input section has
>     somewhere to go.  If one is found without a destination then create
>     an input request and place it into the statement tree.  */
> @@ -6138,27 +6187,7 @@ lang_place_orphans (void)
>  		    }
>  		}
>  	      else
> -		{
> -		  const char *name = s->name;
> -		  int constraint = 0;
> -
> -		  if (config.unique_orphan_sections
> -		      || unique_section_p (s, NULL))
> -		    constraint = SPECIAL;
> -
> -		  if (!ldemul_place_orphan (s, name, constraint))
> -		    {
> -		      lang_output_section_statement_type *os;
> -		      os = lang_output_section_statement_lookup (name,
> -								 constraint,
> -								 TRUE);
> -		      if (os->addr_tree == NULL
> -			  && (link_info.relocatable
> -			      || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0))
> -			os->addr_tree = exp_intop (0);
> -		      lang_add_section (&os->children, s, NULL, os);
> -		    }
> -		}
> +                ldlang_place_orphan (s);
>  	    }
>  	}
>      }
> diff --git a/ld/ldlex.h b/ld/ldlex.h
> index 59bd14f..5629ef1 100644
> --- a/ld/ldlex.h
> +++ b/ld/ldlex.h
> @@ -85,8 +85,6 @@ enum option_values
>    OPTION_NO_WARN_FATAL,
>    OPTION_WARN_MULTIPLE_GP,
>    OPTION_WARN_ONCE,
> -  OPTION_WARN_ORPHAN,
> -  OPTION_NO_WARN_ORPHAN,
>    OPTION_WARN_SECTION_ALIGN,
>    OPTION_SPLIT_BY_RELOC,
>    OPTION_SPLIT_BY_FILE ,
> @@ -144,6 +142,7 @@ enum option_values
>    OPTION_POP_STATE,
>    OPTION_PRINT_MEMORY_USAGE,
>    OPTION_REQUIRE_DEFINED_SYMBOL,
> +  OPTION_ORPHAN_HANDLING,
>  };
>  
>  /* The initial parser states.  */
> diff --git a/ld/lexsup.c b/ld/lexsup.c
> index 2854134..860f90e 100644
> --- a/ld/lexsup.c
> +++ b/ld/lexsup.c
> @@ -492,10 +492,6 @@ static const struct ld_option ld_options[] =
>      '\0', NULL, N_("Warn if the multiple GP values are used"), TWO_DASHES },
>    { {"warn-once", no_argument, NULL, OPTION_WARN_ONCE},
>      '\0', NULL, N_("Warn only once per undefined symbol"), TWO_DASHES },
> -  { {"warn-orphan", no_argument, NULL, OPTION_WARN_ORPHAN},
> -    '\0', NULL, N_("Warn if any orphan sections are encountered"), TWO_DASHES },
> -  { {"no-warn-orphan", no_argument, NULL, OPTION_NO_WARN_ORPHAN},
> -    '\0', NULL, N_("Do not warn if orphan sections are encountered (default)"), TWO_DASHES },
>    { {"warn-section-align", no_argument, NULL, OPTION_WARN_SECTION_ALIGN},
>      '\0', NULL, N_("Warn if start of section changes due to alignment"),
>      TWO_DASHES },
> @@ -528,6 +524,9 @@ static const struct ld_option ld_options[] =
>      TWO_DASHES },
>    { {"print-memory-usage", no_argument, NULL, OPTION_PRINT_MEMORY_USAGE},
>      '\0', NULL, N_("Report target memory usage"), TWO_DASHES },
> +  { {"orphan-handling", required_argument, NULL, OPTION_ORPHAN_HANDLING},
> +    '\0', N_("=MODE"), N_("Control how orphan sections are handled."),
> +    TWO_DASHES },
>  };
>  
>  #define OPTION_COUNT ARRAY_SIZE (ld_options)
> @@ -1362,12 +1361,6 @@ parse_args (unsigned argc, char **argv)
>  	case OPTION_WARN_ONCE:
>  	  config.warn_once = TRUE;
>  	  break;
> -	case OPTION_WARN_ORPHAN:
> -	  config.warn_orphan = TRUE;
> -	  break;
> -	case OPTION_NO_WARN_ORPHAN:
> -	  config.warn_orphan = FALSE;
> -	  break;
>  	case OPTION_WARN_SECTION_ALIGN:
>  	  config.warn_section_align = TRUE;
>  	  break;
> @@ -1502,6 +1495,20 @@ parse_args (unsigned argc, char **argv)
>  	case OPTION_PRINT_MEMORY_USAGE:
>  	  command_line.print_memory_usage = TRUE;
>  	  break;
> +
> +	case OPTION_ORPHAN_HANDLING:
> +	  if (strcasecmp (optarg, "place") == 0)
> +	    config.orphan_handling = orphan_handling_place;
> +	  else if (strcasecmp (optarg, "warn") == 0)
> +	    config.orphan_handling = orphan_handling_warn;
> +	  else if (strcasecmp (optarg, "error") == 0)
> +	    config.orphan_handling = orphan_handling_error;
> +	  else if (strcasecmp (optarg, "discard") == 0)
> +	    config.orphan_handling = orphan_handling_discard;
> +	  else
> +	    einfo (_("%P%F: invalid argument to option"
> +		     " \"--orphan-handling\"\n"));
> +	  break;
>  	}
>      }
>  
> diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
> index 727bcad..a4c4d7f 100644
> --- a/ld/testsuite/ChangeLog
> +++ b/ld/testsuite/ChangeLog
> @@ -1,3 +1,15 @@
> +2015-07-28  Andrew Burgess  <andrew.burgess@embecosm.com>
> +
> +	* ld-elf/elf.exp: Switch to rely on run_dump_test.
> +	* ld-elf/orphan-5.l: Update expected output.
> +	* ld-elf/orphan-5.d: New file.
> +	* ld-elf/orphan-6.d: New file.
> +	* ld-elf/orphan-6.l: New file.
> +	* ld-elf/orphan-7.d: New file.
> +	* ld-elf/orphan-7.map: New file.
> +	* ld-elf/orphan-8.d: New file.
> +	* ld-elf/orphan-8.map: New file.
> +
>  2015-08-04  Andrew Burgess  <andrew.burgess@embecosm.com>
>  
>  	* ld/ld-lib.exp (run_dump_test): When using the map option, no
> diff --git a/ld/testsuite/ld-elf/elf.exp b/ld/testsuite/ld-elf/elf.exp
> index 55bcb72..e56c205 100644
> --- a/ld/testsuite/ld-elf/elf.exp
> +++ b/ld/testsuite/ld-elf/elf.exp
> @@ -124,18 +124,6 @@ foreach t $test_list {
>      run_dump_test [file rootname $t]
>  }
>  
> -# Check that the --warn-orphan option works correctly.
> -run_ld_link_tests {
> -    {"Report orphan sections"
> -	"--script orphan.ld --warn-orphan"
> -	""
> -	""
> -	{orphan.s}
> -	{ { ld "orphan-5.l" } }
> -	"orphan"
> -    }
> -}
> -
>  if { [istarget *-*-linux*]
>       || [istarget *-*-nacl*]
>       || [istarget *-*-gnu*] } {
> diff --git a/ld/testsuite/ld-elf/orphan-5.d b/ld/testsuite/ld-elf/orphan-5.d
> new file mode 100644
> index 0000000..4f99cd0
> --- /dev/null
> +++ b/ld/testsuite/ld-elf/orphan-5.d
> @@ -0,0 +1,4 @@
> +#name: Report warning for orphan sections
> +#ld: --script orphan.ld --orphan-handling=warn
> +#source: orphan.s
> +#warning_output: orphan-5.l
> diff --git a/ld/testsuite/ld-elf/orphan-5.l b/ld/testsuite/ld-elf/orphan-5.l
> index 7b65af2..20a9fe7 100644
> --- a/ld/testsuite/ld-elf/orphan-5.l
> +++ b/ld/testsuite/ld-elf/orphan-5.l
> @@ -1,5 +1,5 @@
>  #...
> -.*Warning: input section '.notbad' from file 'tmpdir/orphan.o' is not mentioned in linker script
> +.*warning: orphan section `\.notbad' from `tmpdir/orphan\.o' being placed in section `\.notbad'\.
>  #...
> -.*Warning: input section '.note.bar' from file 'tmpdir/orphan.o' is not mentioned in linker script
> +.*warning: orphan section `\.note\.bar' from `tmpdir/orphan\.o' being placed in section `\.note\.bar'\.
>  #...
> diff --git a/ld/testsuite/ld-elf/orphan-6.d b/ld/testsuite/ld-elf/orphan-6.d
> new file mode 100644
> index 0000000..c6565fb
> --- /dev/null
> +++ b/ld/testsuite/ld-elf/orphan-6.d
> @@ -0,0 +1,4 @@
> +#name: Report error for orphan sections
> +#ld: --script orphan.ld --orphan-handling=error
> +#source: orphan.s
> +#error_output: orphan-6.l
> diff --git a/ld/testsuite/ld-elf/orphan-6.l b/ld/testsuite/ld-elf/orphan-6.l
> new file mode 100644
> index 0000000..5ac7895
> --- /dev/null
> +++ b/ld/testsuite/ld-elf/orphan-6.l
> @@ -0,0 +1,5 @@
> +#...
> +.*error: unplaced orphan section `\.notbad' from `tmpdir/orphan\.o'\.
> +#...
> +.*error: unplaced orphan section `\.note\.bar' from `tmpdir/orphan\.o'\.
> +#...
> diff --git a/ld/testsuite/ld-elf/orphan-7.d b/ld/testsuite/ld-elf/orphan-7.d
> new file mode 100644
> index 0000000..01d6e80
> --- /dev/null
> +++ b/ld/testsuite/ld-elf/orphan-7.d
> @@ -0,0 +1,4 @@
> +#name: Discard orphan sections
> +#ld: --script orphan.ld --orphan-handling=discard
> +#source: orphan.s
> +#map: orphan-7.map
> diff --git a/ld/testsuite/ld-elf/orphan-7.map b/ld/testsuite/ld-elf/orphan-7.map
> new file mode 100644
> index 0000000..52cc359
> --- /dev/null
> +++ b/ld/testsuite/ld-elf/orphan-7.map
> @@ -0,0 +1,7 @@
> +
> +Discarded input sections
> +
> + \.notbad        0x0+        0x4 tmpdir/.*\.o
> + \.note\.bar      0x0+        0x4 tmpdir/.*\.o
> +
> +#...
> diff --git a/ld/testsuite/ld-elf/orphan-8.d b/ld/testsuite/ld-elf/orphan-8.d
> new file mode 100644
> index 0000000..bbd7288
> --- /dev/null
> +++ b/ld/testsuite/ld-elf/orphan-8.d
> @@ -0,0 +1,4 @@
> +#name: Place orphan sections
> +#ld: --script orphan.ld --orphan-handling=place
> +#source: orphan.s
> +#map: orphan-8.map
> diff --git a/ld/testsuite/ld-elf/orphan-8.map b/ld/testsuite/ld-elf/orphan-8.map
> new file mode 100644
> index 0000000..b672978
> --- /dev/null
> +++ b/ld/testsuite/ld-elf/orphan-8.map
> @@ -0,0 +1,7 @@
> +#...
> +.notbad         0x0000000000000004        0x4
> + .notbad        0x0000000000000004        0x4 tmpdir/dump0.o
> +#...
> +.note.bar       0x0000000000000010        0x4
> + .note.bar      0x0000000000000010        0x4 tmpdir/dump0.o
> +#...
> -- 
> 2.4.0
>
More information about the Binutils mailing list