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Diffstat (limited to 'ld/emultempl/bfin.em')
| -rw-r--r-- | ld/emultempl/bfin.em | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/ld/emultempl/bfin.em b/ld/emultempl/bfin.em deleted file mode 100644 index 1c1cd8d..0000000 --- a/ld/emultempl/bfin.em +++ /dev/null @@ -1,174 +0,0 @@ -# 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 -# -# This file is part of GLD, the Gnu Linker. -# -# 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 -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# 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; - - datasec = bfd_get_section_by_name (abfd, ".data"); - - if (datasec == NULL || datasec->reloc_count == 0) - continue; - - relsec = bfd_get_section_by_name (abfd, ".emreloc"); - ASSERT (relsec != NULL); - - 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 */ -} - -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 |