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-rw-r--r--opcodes/cgen-asm.in110
1 files changed, 71 insertions, 39 deletions
diff --git a/opcodes/cgen-asm.in b/opcodes/cgen-asm.in
index 936c635..4ae36d0 100644
--- a/opcodes/cgen-asm.in
+++ b/opcodes/cgen-asm.in
@@ -58,7 +58,7 @@ static const char * parse_insn_normal
It then compiles the regex and stores it in the opcode, for
later use by @arch@_cgen_assemble_insn
- Returns NULL for success, an error message for failure. */
+ Returns NULL for success, an error message for failure. */
char *
@arch@_cgen_build_insn_regex (insn)
@@ -74,67 +74,98 @@ char *
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";
+ /* Mnemonics come first in the syntax string. */
+ if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
+ return _("missing mnemonic in syntax string");
++syn;
- /* copy the literal mnemonic out of the insn */
- memset (rx, 0, CGEN_MAX_RX_ELEMENTS);
- mnem_len = strlen(mnem);
- memcpy (rx, mnem, mnem_len);
- rx += mnem_len;
+ /* 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 - 9); ++syn, ++rx)
+ /* 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 tmp = CGEN_SYNTAX_CHAR (* syn);
- switch (tmp)
- {
- /* escape any regex metacharacters in the syntax */
- case '.': case '[': case '\\':
- case '*': case '^': case '$':
+ char c = CGEN_SYNTAX_CHAR (* syn);
+
+ switch (c)
+ {
+ /* Escape any regex metacharacters in the syntax. */
+ case '.': case '[': case '\\':
+ case '*': case '^': case '$':
#ifdef CGEN_ESCAPE_EXTENDED_REGEX
- case '?': case '{': case '}':
- case '(': case ')': case '*':
- case '|': case '+': case ']':
+ 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;
+ }
- * rx++ = '\\';
- break;
- }
- /* insert syntax char into rx */
- * rx = tmp;
+ /* Insert syntax char into rx. */
+ *rx++ = c;
}
else
{
- /* replace non-syntax fields with globs */
- * rx = '.';
- * ++rx = '*';
+ /* Replace non-syntax fields with globs. */
+ *rx++ = '.';
+ *rx++ = '*';
}
}
- /* trailing whitespace ok */
+ /* Trailing whitespace ok. */
* rx++ = '[';
* rx++ = ' ';
* rx++ = '\t';
* rx++ = ']';
* rx++ = '*';
- /* but anchor it after that */
+ /* 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|REG_ICASE);
+ 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));
@@ -155,8 +186,7 @@ char *
but that can be handled there. Not handling backtracking here may get
expensive in the case of the m68k. Deal with later.
- Returns NULL for success, an error message for failure.
-*/
+ Returns NULL for success, an error message for failure. */
static const char *
parse_insn_normal (cd, insn, strp, fields)
@@ -230,6 +260,7 @@ parse_insn_normal (cd, insn, strp, fields)
{
/* Syntax char didn't match. Can't be this insn. */
static char msg [80];
+
/* xgettext:c-format */
sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
CGEN_SYNTAX_CHAR(*syn), *str);
@@ -239,6 +270,7 @@ parse_insn_normal (cd, insn, strp, fields)
{
/* Ran out of input. */
static char msg [80];
+
/* xgettext:c-format */
sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
CGEN_SYNTAX_CHAR(*syn));
@@ -321,7 +353,6 @@ const CGEN_INSN *
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))
{
@@ -329,12 +360,12 @@ const CGEN_INSN *
recognized_mnemonic = 1;
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
- /* not usually needed as unsupported opcodes shouldn't be in the hash lists */
+ /* Not usually needed as unsupported opcodes
+ shouldn't be in the hash lists. */
/* Is this insn supported by the selected cpu? */
if (! @arch@_cgen_insn_supported (cd, insn))
continue;
#endif
-
/* If the RELAX attribute is set, this is an insn that shouldn't be
chosen immediately. Instead, it is used during assembler/linker
relaxation if possible. */
@@ -343,7 +374,7 @@ const CGEN_INSN *
str = start;
- /* skip this insn if str doesn't look right lexically */
+ /* 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;
@@ -355,7 +386,7 @@ const CGEN_INSN *
if (parse_errmsg != NULL)
continue;
- /* ??? 0 is passed for `pc' */
+ /* ??? 0 is passed for `pc'. */
insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
(bfd_vma) 0);
if (insert_errmsg != NULL)
@@ -372,10 +403,11 @@ const CGEN_INSN *
const char *tmp_errmsg;
/* If requesting verbose error messages, use insert_errmsg.
- Failing that, use parse_errmsg */
+ Failing that, use parse_errmsg. */
tmp_errmsg = (insert_errmsg ? insert_errmsg :
parse_errmsg ? parse_errmsg :
- recognized_mnemonic ? _("unrecognized form of instruction") :
+ recognized_mnemonic ?
+ _("unrecognized form of instruction") :
_("unrecognized instruction"));
if (strlen (start) > 50)
generated by cgit v1.1 at 2024-12-02 10:56:46 +0000