89 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			C
		
	
	
			
		
		
	
	
			89 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			C
		
	
	
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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	/* 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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	/* current code block */
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	RT_THIS,
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	/* immediate literal */
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	RT_IMMEDIATE,
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	/* address of stack_chain var */
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	RT_STACK_CHAIN
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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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/* code relocation table consists of a table of entries for each fixup */
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typedef u32 F_REL;
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#define REL_TYPE(r)   (((r) & 0xf0000000) >> 28)
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#define REL_CLASS(r)  (((r) & 0x0f000000) >> 24)
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#define REL_OFFSET(r)  ((r) & 0x00ffffff)
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void flush_icache_for(F_CODE_BLOCK *compiled);
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typedef void (*RELOCATION_ITERATOR)(F_REL rel, CELL index, F_CODE_BLOCK *compiled);
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void iterate_relocations(F_CODE_BLOCK *compiled, RELOCATION_ITERATOR iter);
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void store_address_in_code_block(CELL class, CELL offset, F_FIXNUM absolute_value);
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void relocate_code_block(F_CODE_BLOCK *compiled);
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void update_literal_references(F_CODE_BLOCK *compiled);
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void copy_literal_references(F_CODE_BLOCK *compiled);
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void update_word_references(F_CODE_BLOCK *compiled);
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void mark_code_block(F_CODE_BLOCK *compiled);
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void mark_active_blocks(F_CONTEXT *stacks);
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void mark_object_code_block(CELL scan);
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void relocate_code_block(F_CODE_BLOCK *relocating);
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CELL compiled_code_format(void);
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INLINE bool stack_traces_p(void)
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{
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	return userenv[STACK_TRACES_ENV] != F;
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}
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F_CODE_BLOCK *add_code_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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	CELL relocation,
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	CELL literals);
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