148 lines
4.4 KiB
Plaintext
148 lines
4.4 KiB
Plaintext
# This shell script emits C code -*- C -*-
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# to keep track of the machine type of Z80 object files
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# It does some substitutions.
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# Copyright (C) 2005-2020 Free Software Foundation, Inc.
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# This file is part of the GNU Binutils.
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#
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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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#
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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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#
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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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LDEMUL_BEFORE_PARSE=gldz80_before_parse
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LDEMUL_RECOGNIZED_FILE=gldz80_recognized_file
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LDEMUL_AFTER_OPEN=gldz80_after_open
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fragment <<EOF
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/* --- \begin{z80.em} */
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/* Codes for machine types, bitwise or gives the code to use for the
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output. */
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#define M_Z80STRICT 0x01
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#define M_Z80 0x03
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#define M_Z80FULL 0x07
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#define M_R800 0x10
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#define M_Z80ANY 0x0f
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#define M_GBZ80 0x20
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#define M_Z180 0x40
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#define M_EZ80_Z80 0x80
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#define M_EZ80_ADL 0x100
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#define M_ARCH_MASK 0xFF0
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/* Bitwise or of the machine types seen so far. */
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static int result_mach_type;
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static void
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${LDEMUL_BEFORE_PARSE} (void)
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{
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#ifndef TARGET_ /* I.e., if not generic. */
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ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
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#endif /* not TARGET_ */
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result_mach_type = 0;
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}
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/* Update result_mach_type. */
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static bfd_boolean
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${LDEMUL_RECOGNIZED_FILE} (lang_input_statement_type *entry)
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{
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unsigned long mach_type;
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mach_type = bfd_get_mach (entry->the_bfd);
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switch (mach_type)
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{
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case bfd_mach_z80strict:
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result_mach_type |= M_Z80STRICT;
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break;
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case bfd_mach_z80:
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result_mach_type |= M_Z80;
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break;
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case bfd_mach_z80full:
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result_mach_type |= M_Z80FULL;
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break;
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case bfd_mach_r800:
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result_mach_type |= M_R800;
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break;
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case bfd_mach_gbz80:
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result_mach_type |= M_GBZ80;
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break;
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case bfd_mach_z180:
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result_mach_type |= M_Z180;
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break;
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case bfd_mach_ez80_z80:
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result_mach_type |= M_EZ80_Z80;
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break;
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case bfd_mach_ez80_adl:
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result_mach_type |= M_EZ80_ADL;
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break;
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default:
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einfo (_("%P: warning: unknown machine type %u"), (unsigned)mach_type);
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result_mach_type |= M_Z80ANY;
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}
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return FALSE;
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}
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/* Set the machine type of the output file based on result_mach_type. */
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static void
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gldz80_after_open (void)
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{
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unsigned long mach_type;
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after_open_default ();
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switch (result_mach_type & M_ARCH_MASK)
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{
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case M_Z80 & M_ARCH_MASK:
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case M_R800:
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case M_Z180:
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case M_GBZ80:
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case M_EZ80_Z80:
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case M_EZ80_ADL:
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case M_EZ80_Z80 | M_Z180:
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/* valid combination */
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break;
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case M_EZ80_Z80 | M_EZ80_ADL:
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case M_EZ80_Z80 | M_EZ80_ADL | M_Z180:
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case M_EZ80_ADL | M_Z180:
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/* combination may cause invalid objdump output */
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/* but it is possible for mixed ADL/Z80 code */
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einfo (_("%P: warning: mixing ADL and Z80 mode binaries, objdump may generate invalid output"));
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break;
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default:
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/* invalid combination: for example Z180 + R800 */
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einfo (_("%P: warning: incompatible object files linked, result code might not work"));
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}
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if ((result_mach_type & M_EZ80_ADL) == M_EZ80_ADL)
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mach_type = bfd_mach_ez80_adl;
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else if ((result_mach_type & M_EZ80_Z80) == M_EZ80_Z80)
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mach_type = bfd_mach_ez80_z80;
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else if ((result_mach_type & M_Z180) == M_Z180)
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mach_type = bfd_mach_z180;
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else if ((result_mach_type & M_R800) == M_R800)
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mach_type = bfd_mach_r800;
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else if ((result_mach_type & M_GBZ80) == M_GBZ80)
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mach_type = bfd_mach_gbz80;
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else if ((result_mach_type & M_Z80FULL) == M_Z80FULL)
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mach_type = bfd_mach_z80full; /* TODO: remove it */
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else if ((result_mach_type & M_Z80) == M_Z80)
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mach_type = bfd_mach_z80;
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else if ((result_mach_type & M_Z80STRICT) == M_Z80STRICT)
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mach_type = bfd_mach_z80strict; /* TODO: remove this */
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else
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mach_type = bfd_arch_unknown;
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bfd_set_arch_mach (link_info.output_bfd, bfd_arch_z80, mach_type);
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}
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/* --- \end{z80.em} */
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EOF
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