# This shell script emits a C file. -*- C -*-
-# Copyright 2000, 2001, 2003, 2007 Free Software Foundation, Inc.
+# Copyright (C) 2000-2020 Free Software Foundation, Inc.
# Written by Michael Sokolov <msokolov@ivan.Harhan.ORG>, based on armelf.em
#
# This file is part of the GNU Binutils.
# MA 02110-1301, USA.
-# This file is sourced from elf32.em, and defines some extra routines for m68k
+# This file is sourced from elf.em, and defines some extra routines for m68k
# embedded systems using ELF and for some other systems using m68k ELF. While
-# it is sourced from elf32.em for all m68k ELF configurations, here we include
+# it is sourced from elf.em for all m68k ELF configurations, here we include
# only the features we want depending on the configuration.
case ${target} in
;;
esac
-cat >>e${EMULATION_NAME}.c <<EOF
+case ${target} in
+ *-linux*)
+# Don't use multi-GOT by default due to glibc linker's assumption
+# that GOT pointer points to GOT[0].
+# got_handling_target_default=GOT_HANDLING_MULTIGOT
+ got_handling_target_default=GOT_HANDLING_SINGLE
+ ;;
+ *)
+ got_handling_target_default=GOT_HANDLING_SINGLE
+ ;;
+esac
+
+fragment <<EOF
+
+#include "elf32-m68k.h"
+
+#define GOT_HANDLING_SINGLE (0)
+#define GOT_HANDLING_NEGATIVE (1)
+#define GOT_HANDLING_MULTIGOT (2)
+#define GOT_HANDLING_TARGET_DEFAULT ${got_handling_target_default}
+
+/* How to generate GOT. */
+static int got_handling = GOT_HANDLING_DEFAULT;
#ifdef SUPPORT_EMBEDDED_RELOCS
static void check_sections (bfd *, asection *, void *);
#ifdef SUPPORT_EMBEDDED_RELOCS
if (command_line.embedded_relocs
- && (! link_info.relocatable))
+ && (!bfd_link_relocatable (&link_info)))
{
bfd *abfd;
input file with a nonzero .data section. The BFD backend will fill in
these sections with magic numbers which can be used to relocate the
data section at run time. */
- for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
+ for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next)
{
asection *datasec;
- /* As first-order business, make sure that each input BFD is either
- COFF or ELF. We need to call a special BFD backend function to
- generate the embedded relocs, and we have such functions only for
- COFF and ELF. */
- if (bfd_get_flavour (abfd) != bfd_target_coff_flavour
- && bfd_get_flavour (abfd) != bfd_target_elf_flavour)
- einfo ("%F%B: all input objects must be COFF or ELF for --embedded-relocs\n");
+ if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
+ einfo (_("%F%P: %pB: all input objects must be ELF "
+ "for --embedded-relocs\n"));
datasec = bfd_get_section_by_name (abfd, ".data");
{
asection *relsec;
- relsec = bfd_make_section (abfd, ".emreloc");
+ relsec = bfd_make_section_with_flags (abfd, ".emreloc",
+ (SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY));
if (relsec == NULL
- || ! bfd_set_section_flags (abfd, relsec,
- (SEC_ALLOC
- | SEC_LOAD
- | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY))
- || ! bfd_set_section_alignment (abfd, relsec, 2)
- || ! bfd_set_section_size (abfd, relsec,
- datasec->reloc_count * 12))
- einfo ("%F%B: can not create .emreloc section: %E\n");
+ || !bfd_set_section_alignment (relsec, 2)
+ || !bfd_set_section_size (relsec, datasec->reloc_count * 12))
+ einfo (_("%F%P: %pB: can not create .emreloc section: %E\n"));
}
/* Double check that all other data sections are empty, as is
static void
check_sections (bfd *abfd, asection *sec, void *datasec)
{
- if ((bfd_get_section_flags (abfd, sec) & SEC_DATA)
+ if ((bfd_section_flags (sec) & SEC_DATA)
&& sec != datasec
&& sec->reloc_count != 0)
- einfo ("%B%X: section %s has relocs; can not use --embedded-relocs\n",
- abfd, bfd_get_section_name (abfd, sec));
+ einfo (_("%X%P: %pB: section %s has relocs; can not use --embedded-relocs\n"),
+ abfd, bfd_section_name (sec));
}
#endif /* SUPPORT_EMBEDDED_RELOCS */
m68k_elf_after_allocation (void)
{
/* Call the standard elf routine. */
- after_allocation_default ();
+ gld${EMULATION_NAME}_after_allocation ();
#ifdef SUPPORT_EMBEDDED_RELOCS
if (command_line.embedded_relocs
- && (! link_info.relocatable))
+ && (!bfd_link_relocatable (&link_info)))
{
bfd *abfd;
/* If we are generating embedded relocs, call a special BFD backend
routine to do the work. */
- for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
+ for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next)
{
asection *datasec, *relsec;
char *errmsg;
relsec = bfd_get_section_by_name (abfd, ".emreloc");
ASSERT (relsec != NULL);
- if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
- {
- if (! bfd_m68k_coff_create_embedded_relocs (abfd, &link_info,
- datasec, relsec,
- &errmsg))
- {
- if (errmsg == NULL)
- einfo ("%B%X: can not create runtime reloc information: %E\n",
- abfd);
- else
- einfo ("%X%B: can not create runtime reloc information: %s\n",
- abfd, errmsg);
- }
- }
- else if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
{
if (! bfd_m68k_elf32_create_embedded_relocs (abfd, &link_info,
datasec, relsec,
&errmsg))
{
if (errmsg == NULL)
- einfo ("%B%X: can not create runtime reloc information: %E\n",
+ einfo (_("%X%P: %pB: can not create "
+ "runtime reloc information: %E\n"),
abfd);
else
- einfo ("%X%B: can not create runtime reloc information: %s\n",
+ einfo (_("%X%P: %pB: can not create "
+ "runtime reloc information: %s\n"),
abfd, errmsg);
}
}
#endif /* SUPPORT_EMBEDDED_RELOCS */
}
+/* This is a convenient point to tell BFD about target specific flags.
+ After the output has been created, but before inputs are read. */
+
+static void
+elf_m68k_create_output_section_statements (void)
+{
+ bfd_elf_m68k_set_target_options (&link_info, got_handling);
+}
+
EOF
+# Define some shell vars to insert bits of code into the standard elf
+# parse_args and list_options functions.
+#
+PARSE_AND_LIST_PROLOGUE='
+#define OPTION_GOT 301
+'
+
+PARSE_AND_LIST_LONGOPTS='
+ { "got", required_argument, NULL, OPTION_GOT},
+'
+
+PARSE_AND_LIST_OPTIONS='
+ fprintf (file, _(" --got=<type> Specify GOT handling scheme\n"));
+'
+
+PARSE_AND_LIST_ARGS_CASES='
+ case OPTION_GOT:
+ if (strcmp (optarg, "target") == 0)
+ got_handling = GOT_HANDLING_TARGET_DEFAULT;
+ else if (strcmp (optarg, "single") == 0)
+ got_handling = 0;
+ else if (strcmp (optarg, "negative") == 0)
+ got_handling = 1;
+ else if (strcmp (optarg, "multigot") == 0)
+ got_handling = 2;
+ else
+ einfo (_("%P: unrecognized --got argument '\''%s'\''\n"), optarg);
+ break;
+'
+
# We have our own after_open and after_allocation functions, but they call
# the standard routines, so give them a different name.
LDEMUL_AFTER_OPEN=m68k_elf_after_open
LDEMUL_AFTER_ALLOCATION=m68k_elf_after_allocation
+LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=elf_m68k_create_output_section_statements
projects / binutils-gdb.git / blobdiff