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/*
* This file is part of libFirm.
* Copyright (C) 2012 University of Karlsruhe.
*/
/**
* @file
* @brief Interface for binary machine code output.
* @author Matthias Braun
* @date 12.03.2007
*/
#ifndef FIRM_BE_BEEMITTER_BINARY_H
#define FIRM_BE_BEEMITTER_BINARY_H
#include <stdint.h>
#include "firm_types.h"
#include "jit.h"
#include "obst.h"
typedef unsigned (*emit_relocation_func) (char *buffer, uint8_t be_kind,
ir_entity *entity, int32_t offset);
typedef struct be_jit_emit_interface_t {
/** create @p size of NOP instructions for alignment */
void (*nops) (char *buffer, unsigned size);
/** dest is an absolute address for RELOC_DEST_ENTITY and a relative
* offset for RELOC_DEST_CODE_FRAGMENT (cast to int64_t in this case) */
emit_relocation_func relocation;
} be_jit_emit_interface_t;
void be_jit_emit_memory(char *buffer, ir_jit_function_t *function,
be_jit_emit_interface_t const *emitter);
void be_jit_emit_as_asm(ir_jit_function_t *function, emit_relocation_func emit);
void be_jit_begin_function(ir_jit_segment_t *segment);
ir_jit_function_t *be_jit_finish_function(void);
unsigned be_begin_fragment(uint8_t p2align, uint8_t max_skip);
void be_finish_fragment(void);
extern struct obstack *code_obst;
/** Append a byte to the current fragment */
static inline void be_emit8(uint8_t const byte)
{
obstack_1grow(code_obst, byte);
}
/** Append a word (16bits) to the current fragment */
static inline void be_emit16(uint16_t const u16)
{
obstack_grow(code_obst, &u16, 2);
}
/** Append a dword (32bits) to the current fragment */
static inline void be_emit32(uint32_t const u32)
{
obstack_grow(code_obst, &u32, 4);
}
void be_emit_reloc_fragment(unsigned len, uint8_t be_kind,
unsigned fragment_num, int32_t offset);
void be_emit_reloc_entity(unsigned len, uint8_t be_kind, ir_entity *entity,
int32_t offset);
#endif
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