74 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
			
		
		
	
	
			74 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
typedef enum {
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	/* arg is a primitive number */
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	RT_PRIMITIVE,
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	/* arg is a literal table index, holding an array pair (symbol/dll) */
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	RT_DLSYM,
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	/* an indirect literal from the word's literal table */
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	RT_LITERAL,
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	/* a pointer to a compiled word reference */
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	RT_DISPATCH,
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	/* a compiled word reference */
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	RT_XT,
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	/* current offset */
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	RT_HERE,
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	/* a local label */
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	RT_LABEL
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} F_RELTYPE;
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typedef enum {
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	/* absolute address in a 64-bit location */
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	RC_ABSOLUTE_CELL,
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	/* absolute address in a 32-bit location */
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	RC_ABSOLUTE,
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	/* relative address in a 32-bit location */
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	RC_RELATIVE,
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	/* relative address in a PowerPC LIS/ORI sequence */
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	RC_ABSOLUTE_PPC_2_2,
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	/* relative address in a PowerPC LWZ/STW/BC instruction */
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	RC_RELATIVE_PPC_2,
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	/* relative address in a PowerPC B/BL instruction */
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	RC_RELATIVE_PPC_3,
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	/* relative address in an ARM B/BL instruction */
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	RC_RELATIVE_ARM_3,
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	/* pointer to address in an ARM LDR/STR instruction */
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	RC_INDIRECT_ARM,
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	/* pointer to address in an ARM LDR/STR instruction offset by 8 bytes */
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	RC_INDIRECT_ARM_PC
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} F_RELCLASS;
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#define REL_RELATIVE_PPC_2_MASK 0xfffc
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#define REL_RELATIVE_PPC_3_MASK 0x3fffffc
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#define REL_INDIRECT_ARM_MASK 0xfff
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#define REL_RELATIVE_ARM_3_MASK 0xffffff
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/* the rel type is built like a cell to avoid endian-specific code in
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the compiler */
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#define REL_TYPE(r) ((r)->type & 0x000000ff)
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#define REL_CLASS(r) (((r)->type & 0x0000ff00) >> 8)
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#define REL_ARGUMENT(r) (((r)->type & 0xffff0000) >> 16)
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/* code relocation consists of a table of entries for each fixup */
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typedef struct {
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	unsigned int type;
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	unsigned int offset;
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} F_REL;
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void relocate_code_block(F_COMPILED *relocating, CELL code_start,
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	CELL reloc_start, CELL literals_start);
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void default_word_code(F_WORD *word, bool relocate);
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void set_word_code(F_WORD *word, F_COMPILED *compiled);
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F_COMPILED *add_compiled_block(
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	CELL type,
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	F_ARRAY *code,
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	F_ARRAY *labels,
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	F_ARRAY *rel,
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	F_ARRAY *literals);
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CELL compiled_code_format(void);
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bool stack_traces_p(void);
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DECLARE_PRIMITIVE(modify_code_heap);
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