mirror of
https://sourceware.org/git/binutils-gdb.git
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fd67aa1129
Adds two new external authors to etc/update-copyright.py to cover bfd/ax_tls.m4, and adds gprofng to dirs handled automatically, then updates copyright messages as follows: 1) Update cgen/utils.scm emitted copyrights. 2) Run "etc/update-copyright.py --this-year" with an extra external author I haven't committed, 'Kalray SA.', to cover gas testsuite files (which should have their copyright message removed). 3) Build with --enable-maintainer-mode --enable-cgen-maint=yes. 4) Check out */po/*.pot which we don't update frequently.
524 lines
16 KiB
C
524 lines
16 KiB
C
/* s390-mkopc.c -- Generates opcode table out of s390-opc.txt
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Copyright (C) 2000-2024 Free Software Foundation, Inc.
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Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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This file is part of the GNU opcodes library.
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This library 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, or (at your option)
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any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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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 file; see the file COPYING. If not, write to the
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Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include "opcode/s390.h"
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#define STRINGIFY(x) _STRINGIFY(x)
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#define _STRINGIFY(x) #x
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/* Length of strings without terminating '\0' character. */
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#define MAX_OPCODE_LEN 15
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#define MAX_MNEMONIC_LEN 15
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#define MAX_FORMAT_LEN 15
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#define MAX_DESCRIPTION_LEN 127
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#define MAX_CPU_LEN 15
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#define MAX_MODES_LEN 15
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#define MAX_FLAGS_LEN 79
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/* Return code. */
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int return_code = EXIT_SUCCESS;
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/* Helper to print an error message and set the return code. */
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static void __attribute__ ((format (printf, 1, 2)))
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print_error (const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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fprintf(stderr, "Error: ");
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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return_code = EXIT_FAILURE;
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}
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struct op_struct
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{
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char opcode[MAX_OPCODE_LEN + 1];
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char mnemonic[MAX_MNEMONIC_LEN + 1];
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char format[MAX_FORMAT_LEN + 1];
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int mode_bits;
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int min_cpu;
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int flags;
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char description[MAX_DESCRIPTION_LEN + 1];
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unsigned long long sort_value;
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int no_nibbles;
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};
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struct op_struct *op_array;
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int max_ops;
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int no_ops;
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static void
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createTable (void)
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{
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max_ops = 256;
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op_array = malloc (max_ops * sizeof (struct op_struct));
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no_ops = 0;
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}
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/* `insertOpcode': insert an op_struct into sorted opcode array. */
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static void
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insertOpcode (char *opcode, char *mnemonic, char *format,
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int min_cpu, int mode_bits, int flags, char* description)
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{
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char *str;
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unsigned long long sort_value;
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int no_nibbles;
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int ix, k;
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while (no_ops >= max_ops)
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{
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max_ops = max_ops * 2;
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op_array = realloc (op_array, max_ops * sizeof (struct op_struct));
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}
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sort_value = 0;
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str = opcode;
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for (ix = 0; ix < 16; ix++)
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{
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if (*str >= '0' && *str <= '9')
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sort_value = (sort_value << 4) + (*str - '0');
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else if (*str >= 'a' && *str <= 'f')
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sort_value = (sort_value << 4) + (*str - 'a' + 10);
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else if (*str >= 'A' && *str <= 'F')
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sort_value = (sort_value << 4) + (*str - 'A' + 10);
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else if (*str == '?')
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sort_value <<= 4;
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else
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break;
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str ++;
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}
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sort_value <<= 4*(16 - ix);
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sort_value += (min_cpu << 8) + mode_bits;
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no_nibbles = ix;
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for (ix = 0; ix < no_ops; ix++)
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if (sort_value > op_array[ix].sort_value)
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break;
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for (k = no_ops; k > ix; k--)
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op_array[k] = op_array[k-1];
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strncpy (op_array[ix].opcode, opcode, MAX_OPCODE_LEN);
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op_array[ix].opcode[MAX_OPCODE_LEN] = '\0';
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strncpy (op_array[ix].mnemonic, mnemonic, MAX_MNEMONIC_LEN);
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op_array[ix].mnemonic[MAX_MNEMONIC_LEN] = '\0';
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strncpy (op_array[ix].format, format, MAX_FORMAT_LEN);
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op_array[ix].format[MAX_FORMAT_LEN] = '\0';
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op_array[ix].sort_value = sort_value;
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op_array[ix].no_nibbles = no_nibbles;
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op_array[ix].min_cpu = min_cpu;
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op_array[ix].mode_bits = mode_bits;
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op_array[ix].flags = flags;
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strncpy (op_array[ix].description, description, MAX_DESCRIPTION_LEN);
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op_array[ix].description[MAX_DESCRIPTION_LEN] = '\0';
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no_ops++;
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}
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struct s390_cond_ext_format
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{
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char nibble;
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char extension[4];
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char *description_suffix;
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};
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/* The mnemonic extensions for conditional jumps used to replace
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the '*' tag. */
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#define NUM_COND_EXTENSIONS 20
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const struct s390_cond_ext_format s390_cond_extensions[NUM_COND_EXTENSIONS] =
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{ { '1', "o", "on overflow / if ones"}, /* jump on overflow / if ones */
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{ '2', "h", "on A high"}, /* jump on A high */
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{ '2', "p", "on plus" }, /* jump on plus */
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{ '3', "nle", "on not low or equal" }, /* jump on not low or equal */
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{ '4', "l", "on A low" }, /* jump on A low */
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{ '4', "m", "on minus / if mixed" }, /* jump on minus / if mixed */
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{ '5', "nhe", "on not high or equal" }, /* jump on not high or equal */
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{ '6', "lh", "on low or high" }, /* jump on low or high */
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{ '7', "ne", "on A not equal B" }, /* jump on A not equal B */
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{ '7', "nz", "on not zero / if not zeros" }, /* jump on not zero / if not zeros */
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{ '8', "e", "on A equal B" }, /* jump on A equal B */
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{ '8', "z", "on zero / if zeros" }, /* jump on zero / if zeros */
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{ '9', "nlh", "on not low or high " }, /* jump on not low or high */
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{ 'a', "he", "on high or equal" }, /* jump on high or equal */
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{ 'b', "nl", "on A not low" }, /* jump on A not low */
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{ 'b', "nm", "on not minus / if not mixed" }, /* jump on not minus / if not mixed */
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{ 'c', "le", "on low or equal" }, /* jump on low or equal */
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{ 'd', "nh", "on A not high" }, /* jump on A not high */
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{ 'd', "np", "on not plus" }, /* jump on not plus */
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{ 'e', "no", "on not overflow / if not ones" },/* jump on not overflow / if not ones */
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};
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/* The mnemonic extensions for conditional branches used to replace
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the '$' tag. */
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#define NUM_CRB_EXTENSIONS 12
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const struct s390_cond_ext_format s390_crb_extensions[NUM_CRB_EXTENSIONS] =
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{ { '2', "h", "on A high" }, /* jump on A high */
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{ '2', "nle", "on not low or equal" }, /* jump on not low or equal */
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{ '4', "l", "on A low" }, /* jump on A low */
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{ '4', "nhe", "on not high or equal" }, /* jump on not high or equal */
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{ '6', "ne", "on A not equal B" }, /* jump on A not equal B */
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{ '6', "lh", "on low or high" }, /* jump on low or high */
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{ '8', "e", "on A equal B" }, /* jump on A equal B */
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{ '8', "nlh", "on not low or high" }, /* jump on not low or high */
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{ 'a', "nl", "on A not low" }, /* jump on A not low */
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{ 'a', "he", "on high or equal" }, /* jump on high or equal */
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{ 'c', "nh", "on A not high" }, /* jump on A not high */
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{ 'c', "le", "on low or equal" }, /* jump on low or equal */
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};
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/* As with insertOpcode instructions are added to the sorted opcode
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array. Additionally mnemonics containing the '*<number>' tag are
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expanded to the set of conditional instructions described by
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s390_cond_extensions with the tag replaced by the respective
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mnemonic extensions. */
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static void
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insertExpandedMnemonic (char *opcode, char *mnemonic, char *format,
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int min_cpu, int mode_bits, int flags, char *description)
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{
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char *tag;
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char prefix[MAX_MNEMONIC_LEN + 1];
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char suffix[MAX_MNEMONIC_LEN + 1];
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char number[MAX_MNEMONIC_LEN + 1];
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int mask_start, i = 0, tag_found = 0, reading_number = 0;
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int number_p = 0, suffix_p = 0, prefix_p = 0;
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const struct s390_cond_ext_format *ext_table;
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int ext_table_length;
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if (!(tag = strpbrk (mnemonic, "*$")))
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{
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insertOpcode (opcode, mnemonic, format, min_cpu, mode_bits, flags, description);
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return;
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}
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while (mnemonic[i] != '\0')
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{
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if (mnemonic[i] == *tag)
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{
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if (tag_found)
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goto malformed_mnemonic;
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tag_found = 1;
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reading_number = 1;
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}
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else
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switch (mnemonic[i])
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{
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case '0': case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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if (!tag_found || !reading_number)
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goto malformed_mnemonic;
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number[number_p++] = mnemonic[i];
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break;
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default:
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if (reading_number)
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{
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if (!number_p)
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goto malformed_mnemonic;
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else
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reading_number = 0;
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}
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if (tag_found)
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suffix[suffix_p++] = mnemonic[i];
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else
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prefix[prefix_p++] = mnemonic[i];
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}
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i++;
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}
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prefix[prefix_p] = '\0';
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suffix[suffix_p] = '\0';
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number[number_p] = '\0';
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if (sscanf (number, "%d", &mask_start) != 1)
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goto malformed_mnemonic;
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if (mask_start & 3)
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{
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print_error ("Mnemonic \"%s\": Conditional mask not at nibble boundary\n", mnemonic);
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return;
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}
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mask_start >>= 2;
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switch (*tag)
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{
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case '*':
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ext_table = s390_cond_extensions;
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ext_table_length = NUM_COND_EXTENSIONS;
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break;
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case '$':
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ext_table = s390_crb_extensions;
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ext_table_length = NUM_CRB_EXTENSIONS;
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break;
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default:
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abort (); /* Should be unreachable. */
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}
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for (i = 0; i < ext_table_length; i++)
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{
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char new_mnemonic[MAX_MNEMONIC_LEN + 1];
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char new_description[MAX_DESCRIPTION_LEN + 1];
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opcode[mask_start] = ext_table[i].nibble;
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if (snprintf (new_mnemonic, sizeof (new_mnemonic), "%s%s%s", prefix,
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ext_table[i].extension, suffix) >= sizeof (new_mnemonic))
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{
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print_error ("Mnemonic: \"%s\": Concatenated mnemonic exceeds max. length\n", mnemonic);
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return;
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}
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if (snprintf (new_description, sizeof (new_description), "%s %s", description,
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ext_table[i].description_suffix) >= sizeof (new_description))
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{
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print_error ("Mnemonic \"%s\": Concatenated description exceeds max. length\n", mnemonic);
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return;
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}
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insertOpcode (opcode, new_mnemonic, format, min_cpu, mode_bits, flags, new_description);
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}
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return;
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malformed_mnemonic:
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print_error ("Malformed mnemonic: %s\n", mnemonic);
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}
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static const char file_header[] =
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"/* The opcode table. This file was generated by s390-mkopc.\n\n"
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" The format of the opcode table is:\n\n"
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" NAME OPCODE MASK OPERANDS\n\n"
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" Name is the name of the instruction.\n"
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" OPCODE is the instruction opcode.\n"
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" MASK is the opcode mask; this is used to tell the disassembler\n"
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" which bits in the actual opcode must match OPCODE.\n"
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" OPERANDS is the list of operands.\n\n"
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" The disassembler reads the table in order and prints the first\n"
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" instruction which matches.\n"
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" MODE_BITS - zarch or esa\n"
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" MIN_CPU - number of the min cpu level required\n"
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" FLAGS - instruction flags.\n"
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" DESCRIPTION - description of the instruction. */\n\n"
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"const struct s390_opcode s390_opcodes[] =\n {\n";
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/* `dumpTable': write opcode table. */
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static void
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dumpTable (void)
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{
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char *str;
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int ix;
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/* Write hash table entries (slots). */
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printf ("%s", file_header);
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for (ix = 0; ix < no_ops; ix++)
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{
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printf (" { \"%s\", ", op_array[ix].mnemonic);
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for (str = op_array[ix].opcode; *str != 0; str++)
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if (*str == '?')
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*str = '0';
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printf ("OP%i(0x%sLL), ",
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op_array[ix].no_nibbles*4, op_array[ix].opcode);
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printf ("MASK_%s, INSTR_%s, ",
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op_array[ix].format, op_array[ix].format);
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printf ("%i, ", op_array[ix].mode_bits);
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printf ("%i, ", op_array[ix].min_cpu);
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printf ("%i, ", op_array[ix].flags);
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printf ("\"%s\" }", op_array[ix].description);
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if (ix < no_ops-1)
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printf (",\n");
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else
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printf ("\n");
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}
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printf ("};\n\n");
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printf ("const int s390_num_opcodes =\n");
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printf (" sizeof (s390_opcodes) / sizeof (s390_opcodes[0]);\n\n");
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}
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int
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main (void)
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{
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char currentLine[256];
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createTable ();
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/* Read opcode descriptions from `stdin'. For each mnemonic,
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make an entry into the opcode table. */
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while (fgets (currentLine, sizeof (currentLine), stdin) != NULL)
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{
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char opcode[MAX_OPCODE_LEN + 1];
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char mnemonic[MAX_MNEMONIC_LEN + 1];
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char format[MAX_FORMAT_LEN + 1];
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char description[MAX_DESCRIPTION_LEN + 1];
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char cpu_string[MAX_CPU_LEN + 1];
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char modes_string[MAX_MODES_LEN + 1];
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char flags_string[MAX_FLAGS_LEN + 1];
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int min_cpu;
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int mode_bits;
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int flag_bits;
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int num_matched;
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char *str;
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if (currentLine[0] == '#' || currentLine[0] == '\n')
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continue;
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memset (opcode, '\0', sizeof(opcode));
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num_matched = sscanf (currentLine,
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"%" STRINGIFY (MAX_OPCODE_LEN) "s "
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"%" STRINGIFY (MAX_MNEMONIC_LEN) "s "
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"%" STRINGIFY (MAX_FORMAT_LEN) "s "
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"\"%" STRINGIFY (MAX_DESCRIPTION_LEN) "[^\"]\" "
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"%" STRINGIFY (MAX_CPU_LEN) "s "
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"%" STRINGIFY (MAX_MODES_LEN) "s "
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"%" STRINGIFY (MAX_FLAGS_LEN) "[^\n]",
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opcode, mnemonic, format, description,
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cpu_string, modes_string, flags_string);
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if (num_matched != 6 && num_matched != 7)
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{
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print_error ("Couldn't scan line %s\n", currentLine);
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exit (EXIT_FAILURE);
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}
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if (strcmp (cpu_string, "g5") == 0
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|| strcmp (cpu_string, "arch3") == 0)
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min_cpu = S390_OPCODE_G5;
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else if (strcmp (cpu_string, "g6") == 0)
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min_cpu = S390_OPCODE_G6;
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else if (strcmp (cpu_string, "z900") == 0
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|| strcmp (cpu_string, "arch5") == 0)
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min_cpu = S390_OPCODE_Z900;
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else if (strcmp (cpu_string, "z990") == 0
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|| strcmp (cpu_string, "arch6") == 0)
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min_cpu = S390_OPCODE_Z990;
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else if (strcmp (cpu_string, "z9-109") == 0)
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min_cpu = S390_OPCODE_Z9_109;
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else if (strcmp (cpu_string, "z9-ec") == 0
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|| strcmp (cpu_string, "arch7") == 0)
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min_cpu = S390_OPCODE_Z9_EC;
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else if (strcmp (cpu_string, "z10") == 0
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|| strcmp (cpu_string, "arch8") == 0)
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min_cpu = S390_OPCODE_Z10;
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else if (strcmp (cpu_string, "z196") == 0
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|| strcmp (cpu_string, "arch9") == 0)
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min_cpu = S390_OPCODE_Z196;
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else if (strcmp (cpu_string, "zEC12") == 0
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|| strcmp (cpu_string, "arch10") == 0)
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min_cpu = S390_OPCODE_ZEC12;
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else if (strcmp (cpu_string, "z13") == 0
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|| strcmp (cpu_string, "arch11") == 0)
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min_cpu = S390_OPCODE_Z13;
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else if (strcmp (cpu_string, "z14") == 0
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|| strcmp (cpu_string, "arch12") == 0)
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min_cpu = S390_OPCODE_ARCH12;
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else if (strcmp (cpu_string, "z15") == 0
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|| strcmp (cpu_string, "arch13") == 0)
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min_cpu = S390_OPCODE_ARCH13;
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else if (strcmp (cpu_string, "z16") == 0
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|| strcmp (cpu_string, "arch14") == 0)
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min_cpu = S390_OPCODE_ARCH14;
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else {
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print_error ("Mnemonic \"%s\": Couldn't parse CPU string: %s\n",
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mnemonic, cpu_string);
|
|
goto continue_loop;
|
|
}
|
|
|
|
str = modes_string;
|
|
mode_bits = 0;
|
|
do {
|
|
if (strncmp (str, "esa", 3) == 0
|
|
&& (str[3] == 0 || str[3] == ',')) {
|
|
mode_bits |= 1 << S390_OPCODE_ESA;
|
|
str += 3;
|
|
} else if (strncmp (str, "zarch", 5) == 0
|
|
&& (str[5] == 0 || str[5] == ',')) {
|
|
mode_bits |= 1 << S390_OPCODE_ZARCH;
|
|
str += 5;
|
|
} else {
|
|
print_error ("Mnemonic \"%s\": Couldn't parse modes string: %s\n",
|
|
mnemonic, modes_string);
|
|
goto continue_loop;
|
|
}
|
|
if (*str == ',')
|
|
str++;
|
|
} while (*str != 0);
|
|
|
|
flag_bits = 0;
|
|
|
|
if (num_matched == 7)
|
|
{
|
|
str = flags_string;
|
|
do {
|
|
if (strncmp (str, "optparm", 7) == 0
|
|
&& (str[7] == 0 || str[7] == ',')) {
|
|
flag_bits |= S390_INSTR_FLAG_OPTPARM;
|
|
str += 7;
|
|
} else if (strncmp (str, "optparm2", 8) == 0
|
|
&& (str[8] == 0 || str[8] == ',')) {
|
|
flag_bits |= S390_INSTR_FLAG_OPTPARM2;
|
|
str += 8;
|
|
} else if (strncmp (str, "htm", 3) == 0
|
|
&& (str[3] == 0 || str[3] == ',')) {
|
|
flag_bits |= S390_INSTR_FLAG_HTM;
|
|
str += 3;
|
|
} else if (strncmp (str, "vx", 2) == 0
|
|
&& (str[2] == 0 || str[2] == ',')) {
|
|
flag_bits |= S390_INSTR_FLAG_VX;
|
|
str += 2;
|
|
} else if (strncmp (str, "jump", 7) == 0
|
|
&& (str[4] == 0 || str[4] == ',')) {
|
|
flag_bits |= S390_INSTR_FLAGS_CLASS_JUMP;
|
|
str += 4;
|
|
} else if (strncmp (str, "condjump", 7) == 0
|
|
&& (str[8] == 0 || str[8] == ',')) {
|
|
flag_bits |= S390_INSTR_FLAGS_CLASS_CONDJUMP;
|
|
str += 8;
|
|
} else if (strncmp (str, "jumpsr", 7) == 0
|
|
&& (str[6] == 0 || str[6] == ',')) {
|
|
flag_bits |= S390_INSTR_FLAGS_CLASS_JUMPSR;
|
|
str += 6;
|
|
} else {
|
|
print_error ("Mnemonic \"%s\": Couldn't parse flags string: %s\n",
|
|
mnemonic, flags_string);
|
|
goto continue_loop;
|
|
}
|
|
if (*str == ',')
|
|
str++;
|
|
} while (*str != 0);
|
|
}
|
|
insertExpandedMnemonic (opcode, mnemonic, format, min_cpu, mode_bits, flag_bits, description);
|
|
|
|
continue_loop:
|
|
;
|
|
}
|
|
|
|
dumpTable ();
|
|
return return_code;
|
|
}
|