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164 lines
6.5 KiB
C
164 lines
6.5 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 1996-2020 The NASM Authors - All Rights Reserved
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* See the file AUTHORS included with the NASM distribution for
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* the specific copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following
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* conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ----------------------------------------------------------------------- */
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/*
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* Error reporting functions for the assembler
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*/
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#ifndef NASM_ERROR_H
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#define NASM_ERROR_H 1
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#include "compiler.h"
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/*
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* File pointer for error messages
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*/
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extern FILE *error_file; /* Error file descriptor */
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/*
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* Typedef for the severity field
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*/
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typedef uint32_t errflags;
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/*
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* An error reporting function should look like this.
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*/
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void printf_func(2, 3) nasm_error(errflags severity, const char *fmt, ...);
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void printf_func(1, 2) nasm_listmsg(const char *fmt, ...);
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void printf_func(2, 3) nasm_listmsgf(errflags flags, const char *fmt, ...);
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void printf_func(1, 2) nasm_debug(const char *fmt, ...);
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void printf_func(2, 3) nasm_debugf(errflags flags, const char *fmt, ...);
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void printf_func(1, 2) nasm_info(const char *fmt, ...);
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void printf_func(2, 3) nasm_infof(errflags flags, const char *fmt, ...);
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void printf_func(2, 3) nasm_warn(errflags flags, const char *fmt, ...);
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void printf_func(1, 2) nasm_nonfatal(const char *fmt, ...);
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void printf_func(2, 3) nasm_nonfatalf(errflags flags, const char *fmt, ...);
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fatal_func printf_func(1, 2) nasm_fatal(const char *fmt, ...);
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fatal_func printf_func(2, 3) nasm_fatalf(errflags flags, const char *fmt, ...);
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fatal_func printf_func(1, 2) nasm_critical(const char *fmt, ...);
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fatal_func printf_func(2, 3) nasm_criticalf(errflags flags, const char *fmt, ...);
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fatal_func printf_func(1, 2) nasm_panic(const char *fmt, ...);
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fatal_func printf_func(2, 3) nasm_panicf(errflags flags, const char *fmt, ...);
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fatal_func nasm_panic_from_macro(const char *file, int line);
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#define panic() nasm_panic_from_macro(__FILE__, __LINE__);
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void nasm_verror(errflags severity, const char *fmt, va_list ap);
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fatal_func nasm_verror_critical(errflags severity, const char *fmt, va_list ap);
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/*
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* These are the error severity codes which get passed as the first
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* argument to an efunc.
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*/
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#define ERR_LISTMSG 0x00000000 /* for the listing file only */
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#define ERR_DEBUG 0x00000001 /* debugging message */
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#define ERR_INFO 0x00000002 /* information for the list file */
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#define ERR_WARNING 0x00000003 /* warn only: no further action */
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#define ERR_NONFATAL 0x00000004 /* terminate assembly after phase */
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#define ERR_FATAL 0x00000005 /* instantly fatal: exit with error */
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#define ERR_CRITICAL 0x00000006 /* fatal, but minimize code before exit */
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#define ERR_PANIC 0x00000007 /* internal error: panic instantly
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* and dump core for reference */
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#define ERR_MASK 0x00000007 /* mask off the above codes */
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#define ERR_UNDEAD 0x00000008 /* skip if we already have errors */
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#define ERR_NOFILE 0x00000010 /* don't give source file name/line */
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#define ERR_HERE 0x00000020 /* point to a specific source location */
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#define ERR_USAGE 0x00000040 /* print a usage message */
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#define ERR_PASS1 0x00000080 /* message on pass_first */
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#define ERR_PASS2 0x00000100 /* ignore unless on pass_final */
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#define ERR_NO_SEVERITY 0x00000200 /* suppress printing severity */
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#define ERR_PP_PRECOND 0x00000400 /* for preprocessor use */
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#define ERR_PP_LISTMACRO 0x00000800 /* from preproc->error_list_macros() */
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#define ERR_HOLD 0x00001000 /* this error/warning can be held */
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/*
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* These codes define specific types of suppressible warning.
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* They are assumed to occupy the most significant bits of the
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* severity code.
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*/
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#define WARN_SHR 16 /* how far to shift right */
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#define WARN_IDX(x) (((errflags)(x)) >> WARN_SHR)
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#define WARN_MASK ((~(errflags)0) << WARN_SHR)
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/* This is a bitmask */
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#define WARN_ST_ENABLED 1 /* Warning is currently enabled */
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#define WARN_ST_ERROR 2 /* Treat this warning as an error */
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/* Possible initial state for warnings */
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#define WARN_INIT_OFF 0
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#define WARN_INIT_ON WARN_ST_ENABLED
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#define WARN_INIT_ERR (WARN_ST_ENABLED|WARN_ST_ERROR)
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/* Process a warning option or directive */
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bool set_warning_status(const char *value);
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/* Warning stack management */
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void push_warnings(void);
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void pop_warnings(void);
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void init_warnings(void);
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void reset_warnings(void);
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/*
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* Tentative error hold for warnings/errors indicated with ERR_HOLD.
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*
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* This is a stack; the "hold" argument *must*
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* match the value returned from nasm_error_hold_push().
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* If "issue" is true the errors are committed (or promoted to the next
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* higher stack level), if false then they are discarded.
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*
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* Errors stronger than ERR_NONFATAL cannot be held.
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*/
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struct nasm_errhold;
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typedef struct nasm_errhold *errhold;
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errhold nasm_error_hold_push(void);
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void nasm_error_hold_pop(errhold hold, bool issue);
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/* Should be included from within error.h only */
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#include "warnings.h"
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/* By defining MAX_DEBUG, we can compile out messages entirely */
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#ifndef MAX_DEBUG
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# define MAX_DEBUG (~0U)
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#endif
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/* Debug level checks */
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static inline bool debug_level(unsigned int level)
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{
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extern unsigned int debug_nasm;
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if (is_constant(level) && level > MAX_DEBUG)
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return false;
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return unlikely(level <= debug_nasm);
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}
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#endif /* NASM_ERROR_H */
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