return (*info->callbacks->notice) (info, NULL, NULL, ibfd, NULL, act, 0);
}
+/* Check relocations an ELF object file. */
+
+bfd_boolean
+_bfd_elf_link_check_relocs (bfd *abfd, struct bfd_link_info *info)
+{
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ struct elf_link_hash_table *htab = elf_hash_table (info);
+
+ /* If this object is the same format as the output object, and it is
+ not a shared library, then let the backend look through the
+ relocs.
+
+ This is required to build global offset table entries and to
+ arrange for dynamic relocs. It is not required for the
+ particular common case of linking non PIC code, even when linking
+ against shared libraries, but unfortunately there is no way of
+ knowing whether an object file has been compiled PIC or not.
+ Looking through the relocs is not particularly time consuming.
+ The problem is that we must either (1) keep the relocs in memory,
+ which causes the linker to require additional runtime memory or
+ (2) read the relocs twice from the input file, which wastes time.
+ This would be a good case for using mmap.
+
+ I have no idea how to handle linking PIC code into a file of a
+ different format. It probably can't be done. */
+ if ((abfd->flags & DYNAMIC) == 0
+ && is_elf_hash_table (htab)
+ && bed->check_relocs != NULL
+ && elf_object_id (abfd) == elf_hash_table_id (htab)
+ && (*bed->relocs_compatible) (abfd->xvec, info->output_bfd->xvec))
+ {
+ asection *o;
+
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ Elf_Internal_Rela *internal_relocs;
+ bfd_boolean ok;
+
+ if ((o->flags & SEC_RELOC) == 0
+ || o->reloc_count == 0
+ || ((info->strip == strip_all || info->strip == strip_debugger)
+ && (o->flags & SEC_DEBUGGING) != 0)
+ || bfd_is_abs_section (o->output_section))
+ continue;
+
+ internal_relocs = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL,
+ info->keep_memory);
+ if (internal_relocs == NULL)
+ return FALSE;
+
+ ok = (*bed->check_relocs) (abfd, info, o, internal_relocs);
+
+ if (elf_section_data (o)->relocs != internal_relocs)
+ free (internal_relocs);
+
+ if (! ok)
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
/* Add symbols from an ELF object file to the linker hash table. */
static bfd_boolean
&& !(*bed->check_directives) (abfd, info))
return FALSE;
- /* If this object is the same format as the output object, and it is
- not a shared library, then let the backend look through the
- relocs.
-
- This is required to build global offset table entries and to
- arrange for dynamic relocs. It is not required for the
- particular common case of linking non PIC code, even when linking
- against shared libraries, but unfortunately there is no way of
- knowing whether an object file has been compiled PIC or not.
- Looking through the relocs is not particularly time consuming.
- The problem is that we must either (1) keep the relocs in memory,
- which causes the linker to require additional runtime memory or
- (2) read the relocs twice from the input file, which wastes time.
- This would be a good case for using mmap.
-
- I have no idea how to handle linking PIC code into a file of a
- different format. It probably can't be done. */
- if (! dynamic
- && is_elf_hash_table (htab)
- && bed->check_relocs != NULL
- && elf_object_id (abfd) == elf_hash_table_id (htab)
- && (*bed->relocs_compatible) (abfd->xvec, info->output_bfd->xvec))
- {
- asection *o;
-
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- Elf_Internal_Rela *internal_relocs;
- bfd_boolean ok;
-
- if ((o->flags & SEC_RELOC) == 0
- || o->reloc_count == 0
- || ((info->strip == strip_all || info->strip == strip_debugger)
- && (o->flags & SEC_DEBUGGING) != 0)
- || bfd_is_abs_section (o->output_section))
- continue;
-
- internal_relocs = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL,
- info->keep_memory);
- if (internal_relocs == NULL)
- goto error_return;
-
- ok = (*bed->check_relocs) (abfd, info, o, internal_relocs);
-
- if (elf_section_data (o)->relocs != internal_relocs)
- free (internal_relocs);
-
- if (! ok)
- goto error_return;
- }
- }
+ if (!info->check_relocs_after_open_input
+ && !_bfd_elf_link_check_relocs (abfd, info))
+ return FALSE;
/* If this is a non-traditional link, try to optimize the handling
of the .stab/.stabstr sections. */
+2016-04-20 H.J. Lu <hongjiu.lu@intel.com>
+
+ * emulparams/elf32_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
+ New.
+ * emulparams/elf_i386.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
+ Likewise.
+ * emulparams/elf_i386_be.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
+ Likewise.
+ * emulparams/elf_i386_chaos.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
+ Likewise.
+ * emulparams/elf_i386_ldso.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
+ Likewise.
+ * emulparams/elf_i386_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
+ Likewise.
+ * emulparams/elf_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
+ Likewise.
+ * emulparams/i386nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
+ Likewise.
+ * emultempl/elf32.em (gld${EMULATION_NAME}_before_parse):
+ Set check_relocs_after_open_input to TRUE if
+ CHECK_RELOCS_AFTER_OPEN_INPUT is yes.
+ (gld${EMULATION_NAME}_after_open): Call
+ _bfd_elf_link_check_relocs on all inputs if
+ check_relocs_after_open_input is TRUE.
+
2016-04-20 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/ld-elf/eh6.s: Replace .long with .dc.a on
projects / deliverable / binutils-gdb.git / commitdiff
