72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
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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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/* 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, CELL words_start, CELL words_end);
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void finalize_code_block(F_COMPILED *relocating, CELL code_start,
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CELL reloc_start, CELL literals_start, CELL words_start, CELL words_end);
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XT 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 *words,
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F_ARRAY *literals);
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CELL compiled_code_format(void);
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DECLARE_PRIMITIVE(add_compiled_block);
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DECLARE_PRIMITIVE(finalize_compile);
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