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Diffstat (limited to 'ld/ld-gld.c')
| -rwxr-xr-x | ld/ld-gld.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/ld/ld-gld.c b/ld/ld-gld.c new file mode 100755 index 0000000..4c3df1a --- /dev/null +++ b/ld/ld-gld.c @@ -0,0 +1,258 @@ +/* Copyright (C) 1991 Free Software Foundation, Inc. + +This file is part of GLD, the Gnu Linker. + +GLD 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 1, or (at your option) +any later version. + +GLD 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 GLD; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* + * $Id$ + * + * $Log$ + * Revision 1.1 1991/03/21 21:28:24 gumby + * Initial revision + * + * Revision 1.2 1991/03/15 18:45:55 rich + * foo + * + * Revision 1.1 1991/03/13 00:48:11 chrisb + * Initial revision + * + * Revision 1.7 1991/03/10 09:31:18 rich + * Modified Files: + * Makefile config.h ld-emul.c ld-emul.h ld-gld.c ld-gld960.c + * ld-lnk960.c ld.h lddigest.c ldexp.c ldexp.h ldfile.c ldfile.h + * ldgram.y ldinfo.h ldlang.c ldlang.h ldlex.h ldlex.l ldmain.c + * ldmain.h ldmisc.c ldmisc.h ldsym.c ldsym.h ldversion.c + * ldversion.h ldwarn.h ldwrite.c ldwrite.h y.tab.h + * + * As of this round of changes, ld now builds on all hosts of (Intel960) + * interest and copy passes my copy test on big endian hosts again. + * + * Revision 1.6 1991/03/09 03:23:12 sac + * Added -Ur loader script. + * + * Revision 1.5 1991/03/06 21:59:29 sac + * Completed G++ support + * + * Revision 1.4 1991/03/06 02:23:34 sac + * Added support for partial linking. + * + * Revision 1.3 1991/02/22 17:14:56 sac + * Added RCS keywords and copyrights + * +*/ + +/* + * emulate the original gld + * + * Written by Steve Chamberlain steve@cygnus.com + */ + + +#include "sysdep.h" +#include "bfd.h" + + +#include "ld.h" +#include "config.h" +#include "ld-emul.h" +#include "ldfile.h" +#include "ldmisc.h" + +extern boolean lang_float_flag; + + +extern enum bfd_architecture ldfile_output_architecture; +extern unsigned long ldfile_output_machine; +extern char *ldfile_output_machine_name; + +extern bfd *output_bfd; + + + +static void gld_before_parse() +{ + ldfile_add_library_path("/lib"); + ldfile_add_library_path("/usr/lib"); + ldfile_add_library_path("/usr/local/lib/lib"); + ldfile_output_architecture = bfd_arch_sparc; +} + + +static void +gld_after_parse() +{ + +} + +static void +gld_after_allocation() +{ + +} + +static void +gld_before_allocation() +{ + +} + + +static void +gld_set_output_arch() +{ + /* Set the output architecture and machine if possible */ + unsigned long machine = 0; + bfd_set_arch_mach(output_bfd, ldfile_output_architecture, machine); +} + +static char * +gld_choose_target() +{ + char *from_outside = getenv(TARGET_ENVIRON); + if (from_outside != (char *)NULL) + return from_outside; + return GLD_TARGET; +} + +static void +gld_syslib() +{ + info("%S SYSLIB ignored\n"); +} + +static void +gld_hll(ignore) +char *ignore; +{ + info("%S HLL ignored\n"); +} + +static char *gld_script = " \ +SEARCH_DIR(/lib) \ +SEARCH_DIR(/usr/lib) \ +SEARCH_DIR(/usr/local/lib) \ +__DYNAMIC = 0; \ +SECTIONS \ +{ \ + .text 0x2020 BLOCK(0x2000): \ + { \ + CREATE_OBJECT_SYMBOLS \ + *(.text) \ + _etext = ALIGN( 0x2000); \ + } \ + .data ALIGN(0x2000) : \ + { \ + *(.data) \ + ___DTOR_LIST__=. ; \ + LONG((___CTOR_LIST__ - .)/4 -2) \ + *(___DTOR_LIST__) \ + LONG(0) \ + ___CTOR_LIST__=. ; \ + LONG((_edata - .)/4 -2) \ + *(___CTOR_LIST__) \ + LONG(0) \ + _edata = .; \ + } \ + .bss SIZEOF(.data) + ADDR(.data) : \ + { \ + *(.bss) \ + [COMMON] \ + _end=.; \ + } \ +}"; + + +static char *gld_script_option_Ur = "\ +SEARCH_DIR(/lib) \ +SEARCH_DIR(/usr/lib) \ +SEARCH_DIR(/usr/local/lib) \ +SECTIONS \ +{ \ + .text 0: \ + { \ + CREATE_OBJECT_SYMBOLS \ + *(.text) \ + } \ + .data SIZEOF(.text) + ADDR(.text) : \ + { \ + *(.data) \ + ___DTOR_LIST__=. ; \ + LONG((___CTOR_LIST__ - .)/4 -2) \ + *(___DTOR_LIST__) \ + LONG(0) \ + ___CTOR_LIST__=. ; \ + LONG((___end_list__ - .)/4 -2) \ + *(___CTOR_LIST__) \ + LONG(0) \ + ___end_list__ = . ; \ + } \ + .bss SIZEOF(.data) + ADDR(.data) : \ + { \ + *(.bss) \ + [COMMON] \ + } \ +} \ +"; + +static char *gld_script_option_r = "\ +SEARCH_DIR(/lib) \ +SEARCH_DIR(/usr/lib) \ +SEARCH_DIR(/usr/local/lib) \ +SECTIONS \ +{ \ + .text 0: \ + { \ + CREATE_OBJECT_SYMBOLS \ + *(.text) \ + } \ + .data SIZEOF(.text) + ADDR(.text) : \ + { \ + *(.data) \ + } \ + .bss SIZEOF(.data) + ADDR(.data) : \ + { \ + *(.bss) \ + [COMMON] \ + } \ +} \ +"; + +static char *gld_get_script() +{ + extern ld_config_type config; + if (config.relocateable_output == true && + config.build_constructors == true) { + return gld_script_option_Ur; + } + if (config.relocateable_output) { + return gld_script_option_r; + } + + return gld_script; +} +struct ld_emulation_xfer_struct ld_gld_emulation = +{ + gld_before_parse, + gld_syslib, + gld_hll, + gld_after_parse, + gld_after_allocation, + gld_set_output_arch, + gld_choose_target, + gld_before_allocation, + gld_get_script, +}; + |