Fix Common symbol override test fails

Fix Common symbol override test fails

[Alan Modra]

Fixes fails on SH and NDS32 introduced by dyn_reloc tidy.  See the
comment for why check_relocs should generally ignore non-ALLOC
sections.

	* elf32-lm32.c (lm32_elf_check_relocs): Skip non-ALLOC sections.
	* elf32-m32r.c (m32r_elf_check_relocs): Likewise.
	* elf32-nds32.c (nds32_elf_check_relocs): Likewise.
	* elf32-or1k.c (or1k_elf_check_relocs): Likewise.
	* elf32-sh.c (sh_elf_check_relocs): Likewise.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index c588280..91027d2 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,13 @@
 2017-12-06  Alan Modra  <amodra@gmail.com>
 
+	* elf32-lm32.c (lm32_elf_check_relocs): Skip non-ALLOC sections.
+	* elf32-m32r.c (m32r_elf_check_relocs): Likewise.
+	* elf32-nds32.c (nds32_elf_check_relocs): Likewise.
+	* elf32-or1k.c (or1k_elf_check_relocs): Likewise.
+	* elf32-sh.c (sh_elf_check_relocs): Likewise.
+
+2017-12-06  Alan Modra  <amodra@gmail.com>
+
 	* elf32-hppa.c (struct elf32_hppa_dyn_reloc_entry): Delete.  Use
 	struct elf_dyn_relocs throughout file instead.
 	(elf32_hppa_adjust_dynamic_symbol): Comment tidy.
diff --git a/bfd/elf32-lm32.c b/bfd/elf32-lm32.c
index 3867542..17b188b 100644
--- a/bfd/elf32-lm32.c
+++ b/bfd/elf32-lm32.c
@@ -1165,6 +1165,15 @@ lm32_elf_check_relocs (bfd *abfd,
   if (bfd_link_relocatable (info))
     return TRUE;
 
+  /* Don't do anything special with non-loaded, non-alloced sections.
+     In particular, any relocs in such sections should not affect GOT
+     and PLT reference counting (ie. we don't allow them to create GOT
+     or PLT entries), there's no possibility or desire to optimize TLS
+     relocs, and there's not much point in propagating relocs to shared
+     libs that the dynamic linker won't relocate.  */
+  if ((sec->flags & SEC_ALLOC) == 0)
+    return TRUE;
+
   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
   sym_hashes = elf_sym_hashes (abfd);
   sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
diff --git a/bfd/elf32-m32r.c b/bfd/elf32-m32r.c
index 39c7f75..cd9f9d2 100644
--- a/bfd/elf32-m32r.c
+++ b/bfd/elf32-m32r.c
@@ -3547,6 +3547,15 @@ m32r_elf_check_relocs (bfd *abfd,
   if (bfd_link_relocatable (info))
     return TRUE;
 
+  /* Don't do anything special with non-loaded, non-alloced sections.
+     In particular, any relocs in such sections should not affect GOT
+     and PLT reference counting (ie. we don't allow them to create GOT
+     or PLT entries), there's no possibility or desire to optimize TLS
+     relocs, and there's not much point in propagating relocs to shared
+     libs that the dynamic linker won't relocate.  */
+  if ((sec->flags & SEC_ALLOC) == 0)
+    return TRUE;
+
   sreloc = NULL;
   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
   sym_hashes = elf_sym_hashes (abfd);
diff --git a/bfd/elf32-nds32.c b/bfd/elf32-nds32.c
index bfd21ae..80765c7 100644
--- a/bfd/elf32-nds32.c
+++ b/bfd/elf32-nds32.c
@@ -6100,6 +6100,15 @@ nds32_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
   if (bfd_link_relocatable (info))
     return TRUE;
 
+  /* Don't do anything special with non-loaded, non-alloced sections.
+     In particular, any relocs in such sections should not affect GOT
+     and PLT reference counting (ie. we don't allow them to create GOT
+     or PLT entries), there's no possibility or desire to optimize TLS
+     relocs, and there's not much point in propagating relocs to shared
+     libs that the dynamic linker won't relocate.  */
+  if ((sec->flags & SEC_ALLOC) == 0)
+    return TRUE;
+
   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
   sym_hashes = elf_sym_hashes (abfd);
   sym_hashes_end =
diff --git a/bfd/elf32-or1k.c b/bfd/elf32-or1k.c
index d1d27f1..424a2d3 100644
--- a/bfd/elf32-or1k.c
+++ b/bfd/elf32-or1k.c
@@ -1301,6 +1301,15 @@ or1k_elf_check_relocs (bfd *abfd,
   if (bfd_link_relocatable (info))
     return TRUE;
 
+  /* Don't do anything special with non-loaded, non-alloced sections.
+     In particular, any relocs in such sections should not affect GOT
+     and PLT reference counting (ie. we don't allow them to create GOT
+     or PLT entries), there's no possibility or desire to optimize TLS
+     relocs, and there's not much point in propagating relocs to shared
+     libs that the dynamic linker won't relocate.  */
+  if ((sec->flags & SEC_ALLOC) == 0)
+    return TRUE;
+
   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
   sym_hashes = elf_sym_hashes (abfd);
 
diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c
index 420931b..0ed0deb 100644
--- a/bfd/elf32-sh.c
+++ b/bfd/elf32-sh.c
@@ -5782,6 +5782,15 @@ sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
   if (bfd_link_relocatable (info))
     return TRUE;
 
+  /* Don't do anything special with non-loaded, non-alloced sections.
+     In particular, any relocs in such sections should not affect GOT
+     and PLT reference counting (ie. we don't allow them to create GOT
+     or PLT entries), there's no possibility or desire to optimize TLS
+     relocs, and there's not much point in propagating relocs to shared
+     libs that the dynamic linker won't relocate.  */
+  if ((sec->flags & SEC_ALLOC) == 0)
+    return TRUE;
+
   BFD_ASSERT (is_sh_elf (abfd));
 
   symtab_hdr = &elf_symtab_hdr (abfd);

-- 
Alan Modra
Australia Development Lab, IBM