void xstormy16_cgen_cpu_close (CGEN_CPU_DESC cd) { unsigned int i; const CGEN_INSN *insns; if (cd->macro_insn_table.init_entries) { insns = cd->macro_insn_table.init_entries; for (i = 0; i < cd->macro_insn_table.num_init_entries; ++i, ++insns) if (CGEN_INSN_RX ((insns))) regfree (CGEN_INSN_RX (insns)); } if (cd->insn_table.init_entries) { insns = cd->insn_table.init_entries; for (i = 0; i < cd->insn_table.num_init_entries; ++i, ++insns) if (CGEN_INSN_RX (insns)) regfree (CGEN_INSN_RX (insns)); } if (cd->macro_insn_table.init_entries) free ((CGEN_INSN *) cd->macro_insn_table.init_entries); if (cd->insn_table.init_entries) free ((CGEN_INSN *) cd->insn_table.init_entries); if (cd->hw_table.entries) free ((CGEN_HW_ENTRY *) cd->hw_table.entries); if (cd->operand_table.entries) free ((CGEN_HW_ENTRY *) cd->operand_table.entries); free (cd); }
const CGEN_INSN * xstormy16_cgen_assemble_insn (CGEN_CPU_DESC cd, const char *str, CGEN_FIELDS *fields, CGEN_INSN_BYTES_PTR buf, char **errmsg) { const char *start; CGEN_INSN_LIST *ilist; const char *parse_errmsg = NULL; const char *insert_errmsg = NULL; int recognized_mnemonic = 0; /* Skip leading white space. */ while (ISSPACE (* str)) ++ str; /* The instructions are stored in hashed lists. Get the first in the list. */ ilist = CGEN_ASM_LOOKUP_INSN (cd, str); /* Keep looking until we find a match. */ start = str; for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) { const CGEN_INSN *insn = ilist->insn; recognized_mnemonic = 1; #ifdef CGEN_VALIDATE_INSN_SUPPORTED /* Not usually needed as unsupported opcodes shouldn't be in the hash lists. */ /* Is this insn supported by the selected cpu? */ if (! xstormy16_cgen_insn_supported (cd, insn)) continue; #endif /* If the RELAXED attribute is set, this is an insn that shouldn't be chosen immediately. Instead, it is used during assembler/linker relaxation if possible. */ if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0) continue; str = start; /* Skip this insn if str doesn't look right lexically. */ if (CGEN_INSN_RX (insn) != NULL && regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH) continue; /* Allow parse/insert handlers to obtain length of insn. */ CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); if (parse_errmsg != NULL) continue; /* ??? 0 is passed for `pc'. */ insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, (bfd_vma) 0); if (insert_errmsg != NULL) continue; /* It is up to the caller to actually output the insn and any queued relocs. */ return insn; } { static char errbuf[150]; const char *tmp_errmsg; #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS #define be_verbose 1 #else #define be_verbose 0 #endif if (be_verbose) { /* If requesting verbose error messages, use insert_errmsg. Failing that, use parse_errmsg. */ tmp_errmsg = (insert_errmsg ? insert_errmsg : parse_errmsg ? parse_errmsg : recognized_mnemonic ? _("unrecognized form of instruction") : _("unrecognized instruction")); if (strlen (start) > 50) /* xgettext:c-format */ sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); else /* xgettext:c-format */ sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); } else { if (strlen (start) > 50) /* xgettext:c-format */ sprintf (errbuf, _("bad instruction `%.50s...'"), start); else /* xgettext:c-format */ sprintf (errbuf, _("bad instruction `%.50s'"), start); } *errmsg = errbuf; return NULL; } }
char * xstormy16_cgen_build_insn_regex (CGEN_INSN *insn) { CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn); const char *mnem = CGEN_INSN_MNEMONIC (insn); char rxbuf[CGEN_MAX_RX_ELEMENTS]; char *rx = rxbuf; const CGEN_SYNTAX_CHAR_TYPE *syn; int reg_err; syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc)); /* Mnemonics come first in the syntax string. */ if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) return _("missing mnemonic in syntax string"); ++syn; /* Generate a case sensitive regular expression that emulates case insensitive matching in the "C" locale. We cannot generate a case insensitive regular expression because in Turkish locales, 'i' and 'I' are not equal modulo case conversion. */ /* Copy the literal mnemonic out of the insn. */ for (; *mnem; mnem++) { char c = *mnem; if (ISALPHA (c)) { *rx++ = '['; *rx++ = TOLOWER (c); *rx++ = TOUPPER (c); *rx++ = ']'; } else *rx++ = c; } /* Copy any remaining literals from the syntax string into the rx. */ for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn) { if (CGEN_SYNTAX_CHAR_P (* syn)) { char c = CGEN_SYNTAX_CHAR (* syn); switch (c) { /* Escape any regex metacharacters in the syntax. */ case '.': case '[': case '\\': case '*': case '^': case '$': #ifdef CGEN_ESCAPE_EXTENDED_REGEX case '?': case '{': case '}': case '(': case ')': case '*': case '|': case '+': case ']': #endif *rx++ = '\\'; *rx++ = c; break; default: if (ISALPHA (c)) { *rx++ = '['; *rx++ = TOLOWER (c); *rx++ = TOUPPER (c); *rx++ = ']'; } else *rx++ = c; break; } } else { /* Replace non-syntax fields with globs. */ *rx++ = '.'; *rx++ = '*'; } } /* Trailing whitespace ok. */ * rx++ = '['; * rx++ = ' '; * rx++ = '\t'; * rx++ = ']'; * rx++ = '*'; /* But anchor it after that. */ * rx++ = '$'; * rx = '\0'; CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t)); reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB); if (reg_err == 0) return NULL; else { static char msg[80]; regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80); regfree ((regex_t *) CGEN_INSN_RX (insn)); free (CGEN_INSN_RX (insn)); (CGEN_INSN_RX (insn)) = NULL; return msg; } }