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author | Nick Clifton <nickc@redhat.com> | 2007-06-29 14:09:34 +0000 |
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committer | Nick Clifton <nickc@redhat.com> | 2007-06-29 14:09:34 +0000 |
commit | 3d3d428f048cd724b634cb0252dd187f3fabc627 (patch) | |
tree | d6de34240cdc265bc54065744d30ed922c6a974e /ld/emultempl/cr16elf.em | |
parent | 7c3e1d1299219f1cefbef1d8987e64d63a30ccc2 (diff) | |
download | binutils-3d3d428f048cd724b634cb0252dd187f3fabc627.zip binutils-3d3d428f048cd724b634cb0252dd187f3fabc627.tar.gz binutils-3d3d428f048cd724b634cb0252dd187f3fabc627.tar.bz2 |
New port: National Semiconductor's CR16
Diffstat (limited to 'ld/emultempl/cr16elf.em')
-rw-r--r-- | ld/emultempl/cr16elf.em | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/ld/emultempl/cr16elf.em b/ld/emultempl/cr16elf.em new file mode 100644 index 0000000..0881634 --- /dev/null +++ b/ld/emultempl/cr16elf.em @@ -0,0 +1,92 @@ +# This shell script emits a C file. -*- C -*- +# Copyright 2007 Free Software Foundation, Inc. +# Contributed by M R Swami Reddy <MR.Swami.Reddy@nsc.com> +# +# 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. +# + +# This file is sourced from elf32.em, and defines extra cr16-elf +# specific routines. +# +cat >>e${EMULATION_NAME}.c <<EOF + +#include "ldctor.h" + +/* Flag for the emulation-specific "--no-relax" option. */ +static bfd_boolean disable_relaxation = FALSE; + +static void +cr16elf_after_parse (void) +{ + /* Always behave as if called with --sort-common command line + option. + This is to emulate the CRTools' method of keeping variables + of different alignment in separate sections. */ + config.sort_common = TRUE; + + /* Don't create a demand-paged executable, since this feature isn't + meaninful in CR16 embedded systems. Moreover, when magic_demand_paged + is true the link sometimes fails. */ + config.magic_demand_paged = FALSE; +} + +/* This is called after the sections have been attached to output + sections, but before any sizes or addresses have been set. */ + +static void +cr16elf_before_allocation (void) +{ + /* Call the default first. */ + gld${EMULATION_NAME}_before_allocation (); + + /* Enable relaxation by default if the "--no-relax" option was not + specified. This is done here instead of in the before_parse hook + because there is a check in main() to prohibit use of --relax and + -r together. */ + + if (!disable_relaxation) + command_line.relax = TRUE; +} + +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_NO_RELAX 301 +' + +PARSE_AND_LIST_LONGOPTS=' + { "no-relax", no_argument, NULL, OPTION_NO_RELAX}, +' + +PARSE_AND_LIST_OPTIONS=' + fprintf (file, _(" --no-relax Do not relax branches\n")); +' + +PARSE_AND_LIST_ARGS_CASES=' + case OPTION_NO_RELAX: + disable_relaxation = TRUE; + break; +' + +# Put these extra cr16-elf routines in ld_${EMULATION_NAME}_emulation +# +LDEMUL_AFTER_PARSE=cr16elf_after_parse +LDEMUL_BEFORE_ALLOCATION=cr16elf_before_allocation + |