[PATCH] readelf: Warn zero-sized relocation sections

[H.J. Lu]

Older linkers may fail with zero-sized relocation section in section
group.

	PR ld/25767
	* readelf.c (process_section_headers): Warn zero-sized
	relocation sections.
---
 binutils/readelf.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/binutils/readelf.c b/binutils/readelf.c
index cd456b0290..535d47a58e 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -6315,9 +6315,19 @@ process_section_headers (Filedata * filedata)
       else if (section->sh_type == SHT_GROUP)
 	CHECK_ENTSIZE_VALUES (section, i, GRP_ENTRY_SIZE, GRP_ENTRY_SIZE);
       else if (section->sh_type == SHT_REL)
-	CHECK_ENTSIZE (section, i, Rel);
+	{
+	  CHECK_ENTSIZE (section, i, Rel);
+	  if (section->sh_size == 0)
+	    warn (_("Section '%s': zero-sized relocation section\n"),
+		  name);
+	}
       else if (section->sh_type == SHT_RELA)
-	CHECK_ENTSIZE (section, i, Rela);
+	{
+	  CHECK_ENTSIZE (section, i, Rela);
+	  if (section->sh_size == 0)
+	    warn (_("Section '%s': zero-sized relocation section\n"),
+		  name);
+	}
       else if ((do_debugging || do_debug_info || do_debug_abbrevs
 		|| do_debug_lines || do_debug_pubnames || do_debug_pubtypes
 		|| do_debug_aranges || do_debug_frames || do_debug_macinfo
-- 
2.25.2