ravi/dmr_c/src/lib.h

#ifndef DMR_LIB_H
#define DMR_LIB_H

/* This file is derived from lib.h in sparse */

#include <stddef.h>
#include <stdlib.h>
#include <time.h>
#include <setjmp.h>

/*
* Basic helper routine descriptions for 'sparse'.
*
* Copyright (C) 2003 Transmeta Corp.
*               2003 Linus Torvalds
*               2004 Christopher Li
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/*
* This version is part of the dmr_c project.
* Copyright (C) 2017 Dibyendu Majumdar
*/

// Build options
#define NEW_SSA 0
#define SINGLE_STORE_SHORTCUT 1


#include <allocate.h>
#include <ptrlist.h>

#ifdef __cplusplus
extern "C" {
#endif

#define DO_STRINGIFY(x) #x
#define STRINGIFY(x) DO_STRINGIFY(x)

#ifndef ARRAY_SIZE
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#endif

#define MAX_STRING 8191

extern unsigned int dmrC_hexval(unsigned int c);

struct position {
	unsigned int type : 6, 
		stream : 14, 
		newline : 1, 
		whitespace : 1,
		pos : 10;
	unsigned int line : 31, 
		noexpand : 1;
};

struct ident;
struct token;
struct symbol;
struct statement;
struct expression;
struct basic_block;
struct entrypoint;
struct instruction;
struct multijmp;
struct pseudo;
struct string;
typedef struct pseudo *pseudo_t;

struct target_t;
struct global_symbols_t;
struct tokenizer_state_t;
struct linearizer_state_t;

struct warning {
	const char *name;
	int *flag;
};

enum standard {
	STANDARD_C89,
	STANDARD_C94,
	STANDARD_C99,
	STANDARD_C11,
	STANDARD_GNU11,
	STANDARD_GNU89,
	STANDARD_GNU99,
};

enum {
	WARNING_OFF,
	WARNING_ON,
	WARNING_FORCE_OFF
};

struct symbol_list;
struct statement_list;
struct expression_list;
struct basic_block_list;
struct instruction_list;
struct multijmp_list;
struct pseudo_list;
struct phi_map;

DECLARE_PTR_LIST(string_list, char);

#define   ERROR_CURR_PHASE        (1 << 0)
#define   ERROR_PREV_PHASE        (1 << 1)

struct dmr_C {
	struct target_t *target;
	struct global_symbols_t *S;
	struct tokenizer_state_t *T;
	struct parse_state_t *P;
	struct linearizer_state_t *L;

    void *User_data;

	// memory allocators
	struct allocator ptrlist_allocator;
	struct allocator token_allocator;
	struct allocator protected_token_allocator;
	struct allocator byte_allocator;
	struct allocator string_allocator;
	struct allocator ident_allocator;
	struct allocator scope_allocator;
	struct allocator expression_allocator;
	struct allocator statement_allocator;

	int max_warnings;
	int show_info;
	int errors;
	int die_if_error;
	int once;
	int preprocess_only;
	int codegen;
	int has_error;

	jmp_buf jmpbuf;

	const char *gcc_base_dir;
	const char *multiarch_dir;

	int verbose, optimize, optimize_size, preprocessing;

	enum standard standard;
	struct token *pre_buffer_begin;
	struct token *pre_buffer_end;

	int Waddress; // TODO
	int Waddress_space;
	int Wbitwise;
	int Wcast_to_as;
	int Wcast_truncate;
	int Wcontext;
	int Wdecl;
	int Wdeclarationafterstatement;
	int Wdefault_bitfield_sign;
	int Wdesignated_init;
	int Wdo_while;
	int Wenum_mismatch;
	int Wsparse_error;
	int Winit_cstring;
	int Wmemcpy_max_count; // TODO
	int Wnon_pointer_null;
	int Wold_initializer;
	int Wone_bit_signed_bitfield;
	int Woverride_init; //TODO
	int Woverride_init_all; //TODO
	int Woverride_init_whole_range; //TODO
	int Wparen_string;
	int Wptr_subtraction_blows;
	int Wreturn_void;
	int Wshadow;
	int Wsizeof_bool;
	int Wtautological_compare;
	int Wtransparent_union;
	int Wtypesign;
	int Wundef;
	int Wuninitialized;
	int Wunknown_attribute;
	int Wvla;
	struct warning warnings[32];
	struct warning debugs[2];
	struct warning dumps[1];

#define CMDLINE_INCLUDE 20
	int cmdline_include_nr;
	char *cmdline_include[CMDLINE_INCLUDE];

	int dump_macro_defs; // TODO

	int dbg_entry;
	int dbg_dead;
	int fmem_report;	// TODO
	int fdump_linearize;	// TODO
	unsigned long long fmemcpy_max_count;

	int arch_m64;
	int arch_msize_long;
	int arch_big_endian;	// TODO
	/* TODO is this the right place? */
	struct scope *block_scope, *function_scope, *file_scope, *global_scope;
	struct scope *builtin_scope;

	/* Current parsing/evaluation function */
	struct symbol *current_fn;

	char modifier_string_buffer[100];
	char typename_array[200];

	struct ident_list *macros;	// only needed for -dD
	int false_nesting;
	int counter_macro;		// __COUNTER__ expansion

#define INCLUDEPATHS 300
	const char *includepath[INCLUDEPATHS + 1];

	const char **quote_includepath;
	const char **angle_includepath;
	const char **isys_includepath;
	const char **sys_includepath;
	const char **dirafter_includepath;

	char date_buffer[12]; /* __DATE__: 3 + ' ' + 2 + ' ' + 4 + '\0' */
	char preprocessor_buffer[MAX_STRING];
	char preprocessor_mergebuffer[512];
	char preprocessor_tokenseqbuffer[256];
	time_t t;
	char fullname[1024];

	char output_file_name[1024];
};

/*
* Creates a new instance of dmr_C. Due to the way the parser and compiler works
* at present it is recommended that each dmr_C instance be used to process one set
* of inputs only. Destroy the dmr_C instance after use. This way all resources will
* be released.
*/
extern struct dmr_C *new_dmr_C();
extern void destroy_dmr_C(struct dmr_C *C);

/*
* Appends the provided formatted string to the "pre buffer" that is processed by
* dmrC_sparse_initialize(). The input is tokenized immediately and added to the "pre buffer"
* token stream.
*/
extern void dmrC_add_pre_buffer(struct dmr_C *, const char *fmt, ...) FORMAT_ATTR(2);

/*
* Declares a bunch of gcc built-ins into a "pre buffer" which is processed in
* dmrC_sparse_initialize(). The dmrC_add_pre_buffer() function is used to add input into the
* pre buffer.
*/
extern void dmrC_declare_builtin_functions(struct dmr_C *C);
extern void dmrC_create_builtin_stream(struct dmr_C *C);
extern void dmrC_dump_macro_definitions(struct dmr_C *C);
extern struct symbol_list * dmrC_sparse_initialize(struct dmr_C *C, int argc, char **argv, struct string_list **filelist);
extern struct symbol_list * dmrC_sparse_keep_tokens(struct dmr_C *C, char *filename);
extern struct symbol_list * dmrC_sparse(struct dmr_C *C, char *filename);
extern struct symbol_list * dmrC__sparse(struct dmr_C *C, char *filename);
extern struct symbol_list * dmrC_sparse_buffer(struct dmr_C *C, const char *name, char *buffer, int keep_tokens);

struct token *dmrC_skip_to_token(struct token *, int);
struct token *dmrC_expect_token(struct dmr_C *C, struct token *token, int op, const char *where);

extern void dmrC_die(struct dmr_C *, const char *, ...) FORMAT_ATTR(2) NORETURN_ATTR;
extern void dmrC_info(struct dmr_C *, struct position, const char *, ...)
    FORMAT_ATTR(3);
extern void dmrC_warning(struct dmr_C *, struct position, const char *, ...)
    FORMAT_ATTR(3);
extern void dmrC_sparse_error(struct dmr_C *, struct position, const char *, ...)
    FORMAT_ATTR(3);
extern void dmrC_error_die(struct dmr_C *, struct position, const char *, ...)
    FORMAT_ATTR(3) NORETURN_ATTR;
extern void dmrC_expression_error(struct dmr_C *, struct expression *, const char *,
			     ...) FORMAT_ATTR(3);

#ifdef __cplusplus
}
#endif


#endif