PR gold/12880

	* layout.h (class Layout): Add interp_segment_ field.
	* layout.cc (Layout::Layout): Initialize interp_segment_ field.
	(Layout::attach_allocated_section_to_segment): If making shared
	library, put .interp section in PT_INTERP segment.
	(Layout::finalize): Also call create_interp if -dynamic-linker
	option was used.
	(Layout::create_interp): Assert that there is no PT_INTERP
	segment.  If not using a SECTIONS clause, use make_output_section.
	(Layout::make_output_segment): Set interp_segment_ if PT_INTERP.
	* script-sections.cc
	(Script_sections::create_note_and_tls_segments): If making shared
	library, put .interp section in PT_INTERP segment.

1 files changed, 15 insertions, 0 deletions

diff --git a/gold/script-sections.cc b/gold/script-sections.cc
index 3bcc9e6..67e3d65 100644
--- a/gold/script-sections.cc
+++ b/gold/script-sections.cc
@@ -3936,6 +3936,21 @@ Script_sections::create_note_and_tls_segments(
 
 	  saw_tls = true;
 	}
+
+      // If we are making a shared library, and we see a section named
+      // .interp, and the -dynamic-linker option was not used, then
+      // put the .interp section in a PT_INTERP segment.  This is for
+      // GNU ld compatibility.
+      if (strcmp((*p)->name(), ".interp") == 0
+	  && parameters->options().shared()
+	  && parameters->options().dynamic_linker() == NULL)
+	{
+	  elfcpp::Elf_Word seg_flags =
+	    Layout::section_flags_to_segment((*p)->flags());
+	  Output_segment* oseg = layout->make_output_segment(elfcpp::PT_INTERP,
+							     seg_flags);
+	  oseg->add_output_section_to_nonload(*p, seg_flags);
+	}
     }
 }