Linker generating incorrect sh_info values for .dynsym section

[Nick Clifton]

Hi Guys,

  It appears that the linker is generating incorrect values for the
  sh_info field of the .dynsym section.  The field is meant to contain
  the index of the first non-local symbol in the .dynsym section, but
  often it does not.

  I created a patch for readelf (see below) to report this problem,
  but when I ran regression tests I found that it triggered for nearly
  all the ELF based targets, including x86_64 and PowerPC.  Two tests in
  particular - PROVIDE HIDDEN test 4 and PROVIDE HIDDEN test 10 seem to
  trigger this problem every time.

  I have spent a day looking through the code in elflink.c but I am not
  getting very far, so I am reaching out for help.  Does anyone have an
  idea as to what might be causing this problem ?

Cheers
  Nick

diff --git a/binutils/readelf.c b/binutils/readelf.c
index e6674c2..586d13c 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -11114,6 +11114,11 @@ process_symbol_table (FILE * file)
                }
 
              putchar ('\n');
+
+             if (ELF_ST_BIND (psym->st_info) == STB_LOCAL
+                 && si >= section->sh_info)
+               warn (_("local symbol %u found at index >= %s's sh_info value of %u\n"),
+                     si, printable_section_name (section), section->sh_info);
            }
 
          free (symtab);