--- binutils.orig/ld/emultempl/elf32.em 2017-09-14 15:35:45.971100712 +0100
+++ binutils-2.29/ld/emultempl/elf32.em 2017-09-14 15:40:30.315782167 +0100
@@ -2011,6 +2011,29 @@ output_rel_find (asection *sec, int isdy
static int orphan_init_done = 0;
+/* Return whether IN is suitable to be part of OUT. */
+
+static bfd_boolean
+elf_orphan_compatible (asection *in, asection *out)
+{
+ /* Non-zero sh_info implies a section with SHF_INFO_LINK with
+ unknown semantics for the generic linker, or a SHT_REL/SHT_RELA
+ section where sh_info specifies a symbol table. (We won't see
+ SHT_GROUP, SHT_SYMTAB or SHT_DYNSYM sections here.) We clearly
+ can't merge SHT_REL/SHT_RELA using differing symbol tables, and
+ shouldn't merge sections with differing unknown semantics. */
+ if (elf_section_data (out)->this_hdr.sh_info
+ != elf_section_data (in)->this_hdr.sh_info)
+ return FALSE;
+ /* We can't merge two sections with differing SHF_EXCLUDE when doing
+ a relocatable link. */
+ if (bfd_link_relocatable (&link_info)
+ && ((elf_section_flags (out) ^ elf_section_flags (in)) & SHF_EXCLUDE) != 0)
+ return FALSE;
+ return _bfd_elf_match_sections_by_type (link_info.output_bfd, out,
+ in->owner, in);
+}
+
/* Place an orphan section. We use this to put random SHF_ALLOC
sections in the right segment. */
@@ -2067,8 +2090,9 @@ gld${EMULATION_NAME}_place_orphan (asect
lang_output_section_statement_type *os;
lang_output_section_statement_type *match_by_name = NULL;
int isdyn = 0;
- int iself = s->owner->xvec->flavour == bfd_target_elf_flavour;
- unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL;
+ int elfinput = s->owner->xvec->flavour == bfd_target_elf_flavour;
+ int elfoutput = link_info.output_bfd->xvec->flavour == bfd_target_elf_flavour;
+ unsigned int sh_type = elfinput ? elf_section_type (s) : SHT_NULL;
flagword flags;
asection *nexts;
@@ -2076,7 +2100,7 @@ gld${EMULATION_NAME}_place_orphan (asect
&& link_info.combreloc
&& (s->flags & SEC_ALLOC))
{
- if (iself)
+ if (elfinput)
switch (sh_type)
{
case SHT_RELA:
@@ -2098,6 +2122,8 @@ gld${EMULATION_NAME}_place_orphan (asect
}
if (!bfd_link_relocatable (&link_info)
+ && elfinput
+ && elfoutput
&& (s->flags & SEC_ALLOC) != 0
&& (elf_section_flags (s) & SHF_GNU_MBIND) != 0)
{
@@ -2148,23 +2174,18 @@ gld${EMULATION_NAME}_place_orphan (asect
lang_insert_orphan to create a new output section. */
constraint = SPECIAL;
- /* SEC_EXCLUDE is cleared when doing a relocatable link. But
- we can't merge 2 input sections with the same name when only
- one of them has SHF_EXCLUDE. Don't merge 2 sections with
- different sh_info. */
+ /* Check to see if we already have an output section statement
+ with this name, and its bfd section has compatible flags.
+ If the section already exists but does not have any flags
+ set, then it has been created by the linker, possibly as a
+ result of a --section-start command line switch. */
if (os->bfd_section != NULL
- && (elf_section_data (os->bfd_section)->this_hdr.sh_info
- == elf_section_data (s)->this_hdr.sh_info)
&& (os->bfd_section->flags == 0
- || ((!bfd_link_relocatable (&link_info)
- || (iself && (((elf_section_flags (s)
- ^ elf_section_flags (os->bfd_section))
- & SHF_EXCLUDE) == 0)))
- && ((s->flags ^ os->bfd_section->flags)
+ || (((s->flags ^ os->bfd_section->flags)
& (SEC_LOAD | SEC_ALLOC)) == 0
- && _bfd_elf_match_sections_by_type (link_info.output_bfd,
- os->bfd_section,
- s->owner, s))))
+ && (!elfinput
+ || !elfoutput
+ || elf_orphan_compatible (s, os->bfd_section)))))
{
/* We already have an output section statement with this
name, and its bfd section has compatible flags.
@@ -2253,8 +2274,8 @@ gld${EMULATION_NAME}_place_orphan (asect
else if ((flags & SEC_ALLOC) == 0)
;
else if ((flags & SEC_LOAD) != 0
- && ((iself && sh_type == SHT_NOTE)
- || (!iself && CONST_STRNEQ (secname, ".note"))))
+ && ((elfinput && sh_type == SHT_NOTE)
+ || (!elfinput && CONST_STRNEQ (secname, ".note"))))
place = &hold[orphan_interp];
else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) == 0)
place = &hold[orphan_bss];
@@ -2264,8 +2285,8 @@ gld${EMULATION_NAME}_place_orphan (asect
place = &hold[orphan_tdata];
else if ((flags & SEC_READONLY) == 0)
place = &hold[orphan_data];
- else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL))
- || (!iself && CONST_STRNEQ (secname, ".rel")))
+ else if (((elfinput && (sh_type == SHT_RELA || sh_type == SHT_REL))
+ || (!elfinput && CONST_STRNEQ (secname, ".rel")))
&& (flags & SEC_LOAD) != 0)
place = &hold[orphan_rel];
else if ((flags & SEC_CODE) == 0)
diff -rup binutils.orig/bfd/elf32-i386.c binutils-2.29/bfd/elf32-i386.c
--- binutils.orig/bfd/elf32-i386.c 2017-09-15 10:27:16.828950825 +0100
+++ binutils-2.29/bfd/elf32-i386.c 2017-09-15 10:27:38.962692771 +0100
@@ -6921,8 +6921,9 @@ elf_i386_link_setup_gnu_properties (stru
for (abfd = info->input_bfds;
abfd != NULL;
abfd = abfd->link.next)
- if ((abfd->flags
- & (DYNAMIC | BFD_LINKER_CREATED | BFD_PLUGIN)) == 0)
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
+ && (abfd->flags
+ & (DYNAMIC | BFD_LINKER_CREATED | BFD_PLUGIN)) == 0)
{
htab->elf.dynobj = abfd;
dynobj = abfd;
diff -rup binutils.orig/bfd/elf64-x86-64.c binutils-2.29/bfd/elf64-x86-64.c
--- binutils.orig/bfd/elf64-x86-64.c 2017-09-15 10:27:16.820950918 +0100
+++ binutils-2.29/bfd/elf64-x86-64.c 2017-09-15 10:28:02.621416935 +0100
@@ -7466,8 +7466,9 @@ error_alignment:
for (abfd = info->input_bfds;
abfd != NULL;
abfd = abfd->link.next)
- if ((abfd->flags
- & (DYNAMIC | BFD_LINKER_CREATED | BFD_PLUGIN)) == 0)
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
+ && (abfd->flags
+ & (DYNAMIC | BFD_LINKER_CREATED | BFD_PLUGIN)) == 0)
{
htab->elf.dynobj = abfd;
dynobj = abfd;