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author | Per Bothner <per@bothner.com> | 1992-02-15 22:07:15 +0000 |
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committer | Per Bothner <per@bothner.com> | 1992-02-15 22:07:15 +0000 |
commit | 6ecb2b74ee6a45adfba96efff8807448f070b754 (patch) | |
tree | 03413fd8e49d3a73f717d17d0ef167f8cba9f212 /ld/gld960.em | |
parent | 3340f7e5fdd11b6c544714500fca870707793fd0 (diff) | |
download | gdb-6ecb2b74ee6a45adfba96efff8807448f070b754.zip gdb-6ecb2b74ee6a45adfba96efff8807448f070b754.tar.gz gdb-6ecb2b74ee6a45adfba96efff8807448f070b754.tar.bz2 |
Major rewrite of how ld is configured. The major idea
is to use shell scripts to generate everything.
* generic.em replaces ldtemplate.
* Other *.em files replace various *.c files.
A *.em file is a shell script that generates the corresponding
ld__*.c file that implements an emulation. This is usually
a straight 'cat' of a here-document, possibly with substitutions.
* Script files (*.sc) are places by *.sc-sh scripts.
Again, these are simple shell scripts that 'cat'
here-documents, usually with some substitutions.
The output a *.sc-sh is a script file.
Diffstat (limited to 'ld/gld960.em')
-rw-r--r-- | ld/gld960.em | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/ld/gld960.em b/ld/gld960.em new file mode 100644 index 0000000..c2eba62 --- /dev/null +++ b/ld/gld960.em @@ -0,0 +1,137 @@ +cat >ld__${EMULATION_NAME}.c <<EOF +/* 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. */ + +/* + * emulate the Intels port of gld + */ + + +#include "bfd.h" +#include "sysdep.h" + + +#include "ld.h" +#include "config.h" +#include "ldemul.h" +#include "ldfile.h" +#include "ldmisc.h" + + +/* IMPORTS */ +extern char *output_filename; +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; + + + +#ifdef GNU960 + +static void +gld960_before_parse() +{ + static char *env_variables[] = { "G960LIB", "G960BASE", 0 }; + char **p; + char *env ; + + for ( p = env_variables; *p; p++ ){ + env = (char *) getenv(*p); + if (env) { + ldfile_add_library_path(concat(env,"/lib/libbout","")); + } + } + ldfile_output_architecture = bfd_arch_i960; +} + +#else /* not GNU960 */ + +static void gld960_before_parse() +{ + char *env ; + env = getenv("G960LIB"); + if (env) { + ldfile_add_library_path(env); + } + env = getenv("G960BASE"); + if (env) { + ldfile_add_library_path(concat(env,"/lib","")); + } + ldfile_output_architecture = bfd_arch_i960; +} + +#endif /* GNU960 */ + + +static void +gld960_set_output_arch() +{ + bfd_set_arch_mach(output_bfd, ldfile_output_architecture, bfd_mach_i960_core); +} + +static char * +gld960_choose_target() +{ +#ifdef GNU960 + + output_filename = "b.out"; + return bfd_make_targ_name(BFD_BOUT_FORMAT, 0); + +#else + + char *from_outside = getenv(TARGET_ENVIRON); + output_filename = "b.out"; + + if (from_outside != (char *)NULL) + return from_outside; + return "b.out.big"; + +#endif +} + +static char *script = +#include "gld960.x" +; + + +static char * +gld960_get_script() +{ +return script; +} + +struct ld_emulation_xfer_struct ld_gld960_emulation = +{ + gld960_before_parse, + syslib_default, + hll_default, + after_parse_default, + after_allocation_default, + gld960_set_output_arch, + gld960_choose_target, + before_allocation_default, + gld960_get_script, + "lnk960", + "" +}; +EOF |