290 lines
7.3 KiB
Text
290 lines
7.3 KiB
Text
# This shell script emits a C file. -*- C -*-
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# It does some substitutions.
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cat >e${EMULATION_NAME}.c <<EOF
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/* intel coff loader emulation specific stuff
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Copyright 1991, 1992, 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2003,
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2005, 2007 Free Software Foundation, Inc.
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Written by Steve Chamberlain steve@cygnus.com
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This file is part of the GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "libiberty.h"
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#include "bfd.h"
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#include "bfdlink.h"
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/*#include "archures.h"*/
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#include "ld.h"
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#include "ldmain.h"
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#include "ldmisc.h"
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#include "ldexp.h"
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#include "ldlang.h"
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#include "ldfile.h"
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#include "ldemul.h"
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typedef struct lib_list {
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char *name;
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struct lib_list *next;
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} lib_list_type;
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static lib_list_type *hll_list;
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static lib_list_type **hll_list_tail = &hll_list;
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static lib_list_type *syslib_list;
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static lib_list_type **syslib_list_tail = &syslib_list;
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static void
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append (lib_list_type ***list, char *name)
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{
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lib_list_type *element = (lib_list_type *) xmalloc (sizeof (lib_list_type));
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element->name = name;
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element->next = (lib_list_type *) NULL;
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**list = element;
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*list = &element->next;
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}
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static bfd_boolean had_hll = FALSE;
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static bfd_boolean had_hll_name = FALSE;
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static void
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lnk960_hll (char *name)
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{
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had_hll = TRUE;
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if (name != (char *) NULL)
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{
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had_hll_name = TRUE;
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append (&hll_list_tail, name);
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}
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}
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static void
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lnk960_syslib (char *name)
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{
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append (&syslib_list_tail, name);
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}
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static void
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lnk960_before_parse (void)
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{
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char *name = getenv ("I960BASE");
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if (name == (char *) NULL)
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{
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name = getenv("G960BASE");
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if (name == (char *) NULL)
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einfo ("%P%F I960BASE and G960BASE not set\n");
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}
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ldfile_add_library_path (concat (name, "/lib", NULL), FALSE);
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ldfile_output_architecture = bfd_arch_i960;
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ldfile_output_machine = bfd_mach_i960_core;
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}
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static void
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add_on (lib_list_type *list, lang_input_file_enum_type search)
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{
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while (list)
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{
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lang_add_input_file (list->name, search, (char *) NULL);
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list = list->next;
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}
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}
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static void
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lnk960_after_parse (void)
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{
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/* If there has been no arch, default to -KB */
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if (ldfile_output_machine_name[0] == 0)
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ldfile_add_arch ("KB");
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/* if there has been no hll list then add our own */
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if (had_hll && !had_hll_name)
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{
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append (&hll_list_tail, "cg");
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if (ldfile_output_machine == bfd_mach_i960_ka_sa
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|| ldfile_output_machine == bfd_mach_i960_ca)
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append (&hll_list_tail, "fpg");
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}
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add_on (hll_list, lang_input_file_is_l_enum);
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add_on (syslib_list, lang_input_file_is_search_file_enum);
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}
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static void
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lnk960_after_allocation (void)
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{
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if (!link_info.relocatable)
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{
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lang_abs_symbol_at_end_of (".text", "_etext");
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lang_abs_symbol_at_end_of (".data", "_edata");
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lang_abs_symbol_at_beginning_of (".bss", "_bss_start");
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lang_abs_symbol_at_end_of (".bss", "_end");
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}
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}
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static struct
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{
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unsigned long number;
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char *name;
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}
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machine_table[] =
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{
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{ bfd_mach_i960_core ,"CORE" },
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{ bfd_mach_i960_kb_sb ,"KB" },
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{ bfd_mach_i960_kb_sb ,"SB" },
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{ bfd_mach_i960_mc ,"MC" },
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{ bfd_mach_i960_xa ,"XA" },
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{ bfd_mach_i960_ca ,"CA" },
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{ bfd_mach_i960_ka_sa ,"KA" },
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{ bfd_mach_i960_ka_sa ,"SA" },
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{ bfd_mach_i960_jx ,"JX" },
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{ bfd_mach_i960_hx ,"HX" },
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{ bfd_mach_i960_core ,"core" },
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{ bfd_mach_i960_kb_sb ,"kb" },
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{ bfd_mach_i960_kb_sb ,"sb" },
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{ bfd_mach_i960_mc ,"mc" },
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{ bfd_mach_i960_xa ,"xa" },
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{ bfd_mach_i960_ca ,"ca" },
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{ bfd_mach_i960_ka_sa ,"ka" },
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{ bfd_mach_i960_ka_sa ,"sa" },
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{ bfd_mach_i960_jx ,"jx" },
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{ bfd_mach_i960_hx ,"hx" },
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{ 0, (char *) NULL }
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};
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static void
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lnk960_set_output_arch (void)
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{
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/* Set the output architecture and machine if possible */
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unsigned int i;
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ldfile_output_machine = bfd_mach_i960_core;
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for (i= 0; machine_table[i].name != (char*) NULL; i++)
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{
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if (strcmp (ldfile_output_machine_name, machine_table[i].name) == 0)
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{
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ldfile_output_machine = machine_table[i].number;
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break;
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}
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}
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bfd_set_arch_mach (output_bfd, ldfile_output_architecture,
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ldfile_output_machine);
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}
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static char *
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lnk960_choose_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
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{
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char *from_outside = getenv (TARGET_ENVIRON);
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if (from_outside != (char *) NULL)
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return from_outside;
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#ifdef LNK960_LITTLE
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return "coff-Intel-little";
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#else
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return "coff-Intel-big";
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#endif
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}
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static char *
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lnk960_get_script (int *isfile)
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EOF
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if test -n "$COMPILE_IN"
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then
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# Scripts compiled in.
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# sed commands to quote an ld script as a C string.
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sc="-f stringify.sed"
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cat >>e${EMULATION_NAME}.c <<EOF
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{
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*isfile = 0;
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if (link_info.relocatable && config.build_constructors)
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return
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EOF
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sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
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echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
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echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
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echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
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echo ' ; else return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
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echo '; }' >> e${EMULATION_NAME}.c
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else
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# Scripts read from the filesystem.
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cat >>e${EMULATION_NAME}.c <<EOF
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{
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*isfile = 1;
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if (link_info.relocatable && config.build_constructors)
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return "ldscripts/${EMULATION_NAME}.xu";
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else if (link_info.relocatable)
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return "ldscripts/${EMULATION_NAME}.xr";
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else if (!config.text_read_only)
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return "ldscripts/${EMULATION_NAME}.xbn";
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else if (!config.magic_demand_paged)
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return "ldscripts/${EMULATION_NAME}.xn";
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else
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return "ldscripts/${EMULATION_NAME}.x";
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}
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EOF
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fi
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cat >>e${EMULATION_NAME}.c <<EOF
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struct ld_emulation_xfer_struct ld_lnk960_emulation =
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{
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lnk960_before_parse,
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lnk960_syslib,
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lnk960_hll,
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lnk960_after_parse,
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NULL, /* after_open */
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lnk960_after_allocation,
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lnk960_set_output_arch,
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lnk960_choose_target,
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before_allocation_default,
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lnk960_get_script,
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"lnk960",
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"",
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finish_default,
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NULL, /* create output section statements */
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NULL, /* open dynamic archive */
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NULL, /* place orphan */
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NULL, /* set symbols */
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NULL, /* parse args */
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NULL, /* add_options */
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NULL, /* handle_option */
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NULL, /* unrecognized file */
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NULL, /* list options */
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NULL, /* recognized file */
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NULL, /* find_potential_libraries */
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NULL /* new_vers_pattern */
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};
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EOF
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