1# This shell script emits a C file. -*- C -*- 2# Copyright 2007 Free Software Foundation, Inc. 3# Contributed by M R Swami Reddy <MR.Swami.Reddy@nsc.com> 4# 5# This file is part of the GNU Binutils. 6# 7# This program is free software; you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation; either version 3 of the License, or 10# (at your option) any later version. 11# 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public License 18# along with this program; if not, write to the Free Software 19# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20# MA 02110-1301, USA. 21# 22 23# This file is sourced from elf32.em, and defines extra cr16-elf 24# specific routines. 25# 26fragment <<EOF 27 28#include "ldctor.h" 29 30/* Flag for the emulation-specific "--no-relax" option. */ 31static bfd_boolean disable_relaxation = FALSE; 32 33static void 34cr16elf_after_parse (void) 35{ 36 /* Always behave as if called with --sort-common command line 37 option. 38 This is to emulate the CRTools' method of keeping variables 39 of different alignment in separate sections. */ 40 config.sort_common = TRUE; 41 42 /* Don't create a demand-paged executable, since this feature isn't 43 meaninful in CR16 embedded systems. Moreover, when magic_demand_paged 44 is true the link sometimes fails. */ 45 config.magic_demand_paged = FALSE; 46} 47 48/* This is called after the sections have been attached to output 49 sections, but before any sizes or addresses have been set. */ 50 51static void 52cr16elf_before_allocation (void) 53{ 54 /* Call the default first. */ 55 gld${EMULATION_NAME}_before_allocation (); 56 57 /* Enable relaxation by default if the "--no-relax" option was not 58 specified. This is done here instead of in the before_parse hook 59 because there is a check in main() to prohibit use of --relax and 60 -r together. */ 61 62 if (!disable_relaxation) 63 command_line.relax = TRUE; 64} 65 66EOF 67 68# Define some shell vars to insert bits of code into the standard elf 69# parse_args and list_options functions. 70# 71PARSE_AND_LIST_PROLOGUE=' 72#define OPTION_NO_RELAX 301 73' 74 75PARSE_AND_LIST_LONGOPTS=' 76 { "no-relax", no_argument, NULL, OPTION_NO_RELAX}, 77' 78 79PARSE_AND_LIST_OPTIONS=' 80 fprintf (file, _(" --no-relax Do not relax branches\n")); 81' 82 83PARSE_AND_LIST_ARGS_CASES=' 84 case OPTION_NO_RELAX: 85 disable_relaxation = TRUE; 86 break; 87' 88 89# Put these extra cr16-elf routines in ld_${EMULATION_NAME}_emulation 90# 91LDEMUL_AFTER_PARSE=cr16elf_after_parse 92LDEMUL_BEFORE_ALLOCATION=cr16elf_before_allocation 93