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/* ----------------------------------------------------------------------- *
*
* Copyright 1996-2018 The NASM Authors - All Rights Reserved
* See the file AUTHORS included with the NASM distribution for
* the specific copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ----------------------------------------------------------------------- */
/*
* error.c - error message handling routines for the assembler
*/
#include "compiler.h"
#include <stdlib.h>
#include "nasmlib.h"
#include "error.h"
/* Global error handling function */
vefunc nasm_verror;
/* Common function body */
#define nasm_do_error(s) \
va_list ap; \
va_start(ap, fmt); \
nasm_verror((s), fmt, ap); \
va_end(ap);
void nasm_error(errflags severity, const char *fmt, ...)
{
nasm_do_error(severity);
}
#define nasm_err_helpers(_type, _name, _sev) \
_type nasm_ ## _name ## f (errflags flags, const char *fmt, ...) \
{ \
nasm_do_error((_sev)|flags); \
if (_sev >= ERR_FATAL) \
abort(); \
} \
_type nasm_ ## _name (const char *fmt, ...) \
{ \
nasm_do_error(_sev); \
if (_sev >= ERR_FATAL) \
abort(); \
}
nasm_err_helpers(void, debug, ERR_DEBUG)
nasm_err_helpers(void, note, ERR_NOTE)
nasm_err_helpers(void, warn, ERR_WARNING)
nasm_err_helpers(void, nonfatal, ERR_NONFATAL)
nasm_err_helpers(fatal_func, fatal, ERR_FATAL)
nasm_err_helpers(fatal_func, panic, ERR_PANIC)
fatal_func nasm_panic_from_macro(const char *file, int line)
{
nasm_panic("internal error at %s:%d\n", file, line);
}
fatal_func nasm_assert_failed(const char *file, int line, const char *msg)
{
nasm_panic("assertion %s failed at %s:%d", msg, file, line);
}
/*
* This is called when processing a -w or -W option, or a warning directive.
* Returns on if if the action was successful.
*
* Special pseudo-warnings:
*
*!other [on] any warning not specifially mentioned above
*! specifies any warning not included in any specific warning class.
*
*!all [all] all possible warnings
*! is an alias for \e{all} suppressible warning classes.
*! Thus, \c{-w+all} enables all available warnings, and \c{-w-all}
*! disables warnings entirely (since NASM 2.13).
*/
bool set_warning_status(const char *value)
{
enum warn_action { WID_OFF, WID_ON, WID_RESET };
enum warn_action action;
const char *name;
bool ok = false;
uint8_t mask;
int i;
value = nasm_skip_spaces(value);
switch (*value) {
case '-':
action = WID_OFF;
value++;
break;
case '+':
action = WID_ON;
value++;
break;
case '*':
action = WID_RESET;
value++;
break;
case 'N':
case 'n':
if (!nasm_strnicmp(value, "no-", 3)) {
action = WID_OFF;
value += 3;
break;
} else if (!nasm_stricmp(value, "none")) {
action = WID_OFF;
value = NULL;
break;
}
/* else fall through */
default:
action = WID_ON;
break;
}
mask = WARN_ST_ENABLED;
if (value && !nasm_strnicmp(value, "error", 5)) {
switch (value[5]) {
case '=':
mask = WARN_ST_ERROR;
value += 6;
break;
case '\0':
mask = WARN_ST_ERROR;
value = NULL;
break;
default:
/* Just an accidental prefix? */
break;
}
}
name = value ? value : "<none>";
if (value && !nasm_stricmp(value, "all"))
value = NULL;
/* This is inefficient, but it shouldn't matter... */
for (i = 1; i < WARN_IDX_ALL; i++) {
if (!value || !nasm_stricmp(value, warning_name[i])) {
ok = true; /* At least one action taken */
switch (action) {
case WID_OFF:
warning_state[i] &= ~mask;
break;
case WID_ON:
warning_state[i] |= mask;
break;
case WID_RESET:
warning_state[i] &= ~mask;
warning_state[i] |= warning_state_init[i] & mask;
break;
}
}
}
if (!ok) {
/*!
*!unknown-warning [off] unknown warning in -W/-w or warning directive
*! warns about a \c{-w} or \c{-W} option or a \c{[WARNING]} directive
*! that contains an unknown warning name or is otherwise not possible to process.
*/
nasm_warnf(WARN_UNKNOWN_WARNING, "unknown warning name: %s", name);
}
return ok;
}
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