Add new linker option: --warn-orphan which generates warning messages when orphan sections are detected.

ld	* ld.h (struct ld_config_type): Add new field: warn_orphan.
	* ldlex.h (enum option_values): Add OPTION_WARN_ORPHAN and
	OPTION_NO_WARN_ORPHAN.
	* lexsup.c (ld_options): Add --warn-orphan and --no-warn-orphan.
	(parse_args): Handle the new options.
	* ldemul.c (ldemul_place_orphan): If requested, generate a warning
	message when an orphan section is placed in the output file.
	* ld.texinfo: Document the new option.
	* NEWS: Mention the new feature.

tests	* ld-elf/orphan-5.l: New test - checks the linker's output with
	--warn-orphan enabled.
	* ld-elf/elf.exp: Run the new test.

1 files changed, 11 insertions, 0 deletions

diff --git a/ld/ld.texinfo b/ld/ld.texinfo
index 440fa41..82735e9 100644
--- a/ld/ld.texinfo
+++ b/ld/ld.texinfo
@@ -2064,6 +2064,17 @@ 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