# This shell script emits a C file. -*- C -*-
-# Copyright 2000, 2001, 2003 Free Software Foundation, Inc.
-# Written by Michael Sokolov <msokolov@ivan.Harhan.ORG>, based on armelf.em
+# Copyright (C) 2010-2020 Free Software Foundation, Inc.
#
-# This file is part of GLD, the Gnu Linker.
+# This file is part of the GNU Binutils.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-# This file is sourced from elf32.em, and defines some extra routines for bfin
-# embedded systems using ELF and for some other systems using bfin ELF. While
-# it is sourced from elf32.em for all bfin ELF configurations, here we include
-# only the features we want depending on the configuration.
-
-case ${target} in
- bfin*-*-elf)
- echo "#define SUPPORT_EMBEDDED_RELOCS" >>e${EMULATION_NAME}.c
- ;;
-esac
-
-cat >>e${EMULATION_NAME}.c <<EOF
-
-#ifdef SUPPORT_EMBEDDED_RELOCS
-static void check_sections (bfd *, asection *, void *);
-#endif
-
-/* This function is run after all the input files have been opened. */
-
-static void
-bfin_elf_after_open (void)
-{
- /* Call the standard elf routine. */
- gld${EMULATION_NAME}_after_open ();
-
-#ifdef SUPPORT_EMBEDDED_RELOCS
- if (command_line.embedded_relocs
- && (! link_info.relocatable))
- {
- bfd *abfd;
-
- /* In the embedded relocs mode we create a .emreloc section for each
- 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)
- {
- 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");
-
- datasec = bfd_get_section_by_name (abfd, ".data");
-
- /* Note that we assume that the reloc_count field has already
- been set up. We could call bfd_get_reloc_upper_bound, but
- that returns the size of a memory buffer rather than a reloc
- count. We do not want to call bfd_canonicalize_reloc,
- because although it would always work it would force us to
- read in the relocs into BFD canonical form, which would waste
- a significant amount of time and memory. */
- if (datasec != NULL && datasec->reloc_count > 0)
- {
- asection *relsec;
-
- relsec = bfd_make_section (abfd, ".emreloc");
- 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");
- }
-
- /* Double check that all other data sections are empty, as is
- required for embedded PIC code. */
- bfd_map_over_sections (abfd, check_sections, datasec);
- }
- }
-#endif /* SUPPORT_EMBEDDED_RELOCS */
-}
-
-#ifdef SUPPORT_EMBEDDED_RELOCS
-/* Check that of the data sections, only the .data section has
- relocs. This is called via bfd_map_over_sections. */
-
-static void
-check_sections (bfd *abfd, asection *sec, void *datasec)
-{
- if ((bfd_get_section_flags (abfd, 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));
-}
-
-#endif /* SUPPORT_EMBEDDED_RELOCS */
-
-/* This function is called after the section sizes and offsets have
- been set. */
-
-static void
-bfin_elf_after_allocation (void)
-{
- /* Call the standard elf routine. */
- after_allocation_default ();
-
-#ifdef SUPPORT_EMBEDDED_RELOCS
- if (command_line.embedded_relocs
- && (! link_info.relocatable))
- {
- 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)
- {
- asection *datasec, *relsec;
- char *errmsg;
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
+#
- datasec = bfd_get_section_by_name (abfd, ".data");
+# This file is sourced from elf.em, and defines extra bfin-elf
+# specific routines.
+#
+fragment <<EOF
- if (datasec == NULL || datasec->reloc_count == 0)
- continue;
+#include "elf-bfd.h"
+#include "elf32-bfin.h"
- relsec = bfd_get_section_by_name (abfd, ".emreloc");
- ASSERT (relsec != NULL);
+/* Whether to put code in Blackfin L1 SRAM. */
+extern bfd_boolean elf32_bfin_code_in_l1;
- if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
- {
- if (! bfd_bfin_elf32_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
- abort ();
- }
- }
-#endif /* SUPPORT_EMBEDDED_RELOCS */
-}
+/* Whether to put (writable) data in Blackfin L1 SRAM. */
+extern bfd_boolean elf32_bfin_data_in_l1;
EOF
-# 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=bfin_elf_after_open
-LDEMUL_AFTER_ALLOCATION=bfin_elf_after_allocation
+
+# 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_CODE_IN_L1 300
+#define OPTION_DATA_IN_L1 301
+'
+
+PARSE_AND_LIST_LONGOPTS='
+ { "code-in-l1", no_argument, NULL, OPTION_CODE_IN_L1 },
+ { "data-in-l1", no_argument, NULL, OPTION_DATA_IN_L1 },
+'
+
+PARSE_AND_LIST_OPTIONS='
+ fprintf (file, _("\
+ --code-in-l1 Put code in L1\n"));
+ fprintf (file, _("\
+ --data-in-l1 Put data in L1\n"));
+'
+
+PARSE_AND_LIST_ARGS_CASES='
+ case OPTION_CODE_IN_L1:
+ elf32_bfin_code_in_l1 = TRUE;
+ break;
+ case OPTION_DATA_IN_L1:
+ elf32_bfin_data_in_l1 = TRUE;
+ break;
+'
projects / deliverable / binutils-gdb.git / blobdiff