namespace factor {
enum relocation_type {
- /* arg is a literal table index, holding a pair (symbol/dll) */
+ // arg is a literal table index, holding a pair (symbol/dll)
RT_DLSYM,
- /* a word or quotation's general entry point */
+ // a word or quotation's general entry point
RT_ENTRY_POINT,
- /* a word's PIC entry point */
+ // a word's PIC entry point
RT_ENTRY_POINT_PIC,
- /* a word's tail-call PIC entry point */
+ // a word's tail-call PIC entry point
RT_ENTRY_POINT_PIC_TAIL,
- /* current offset */
+ // current offset
RT_HERE,
- /* current code block */
+ // current code block
RT_THIS,
- /* data heap literal */
+ // data heap literal
RT_LITERAL,
- /* untagged fixnum literal */
+ // untagged fixnum literal
RT_UNTAGGED,
- /* address of megamorphic_cache_hits var */
+ // address of megamorphic_cache_hits var
RT_MEGAMORPHIC_CACHE_HITS,
- /* address of vm object */
+ // address of vm object
RT_VM,
- /* value of vm->cards_offset */
+ // value of vm->cards_offset
RT_CARDS_OFFSET,
- /* value of vm->decks_offset */
+ // value of vm->decks_offset
RT_DECKS_OFFSET,
- /* address of exception_handler -- this exists as a separate relocation
- type since its used in a situation where relocation arguments cannot
- be passed in, and so RT_DLSYM is inappropriate (Windows only) */
- RT_EXCEPTION_HANDLER,
- /* arg is a literal table index, holding a pair (symbol/dll) */
+ RT_UNUSED,
+ // arg is a literal table index, holding a pair (symbol/dll)
RT_DLSYM_TOC,
- /* address of inline_cache_miss function. This is a separate
- relocation to reduce compile time and size for PICs. */
+ // address of inline_cache_miss function. This is a separate
+ // relocation to reduce compile time and size for PICs.
RT_INLINE_CACHE_MISS,
- /* address of safepoint page in code heap */
+ // address of safepoint page in code heap
RT_SAFEPOINT
};
enum relocation_class {
- /* absolute address in a pointer-width location */
+ // absolute address in a pointer-width location
RC_ABSOLUTE_CELL,
- /* absolute address in a 4 byte location */
+ // absolute address in a 4 byte location
RC_ABSOLUTE,
- /* relative address in a 4 byte location */
+ // relative address in a 4 byte location
RC_RELATIVE,
- /* absolute address in a PowerPC LIS/ORI sequence */
+ // absolute address in a PowerPC LIS/ORI sequence
RC_ABSOLUTE_PPC_2_2,
- /* absolute address in a PowerPC LWZ instruction */
+ // absolute address in a PowerPC LWZ instruction
RC_ABSOLUTE_PPC_2,
- /* relative address in a PowerPC LWZ/STW/BC instruction */
+ // relative address in a PowerPC LWZ/STW/BC instruction
RC_RELATIVE_PPC_2_PC,
- /* relative address in a PowerPC B/BL instruction */
+ // relative address in a PowerPC B/BL instruction
RC_RELATIVE_PPC_3_PC,
- /* relative address in an ARM B/BL instruction */
+ // relative address in an ARM B/BL instruction
RC_RELATIVE_ARM_3,
- /* pointer to address in an ARM LDR/STR instruction */
+ // pointer to address in an ARM LDR/STR instruction
RC_INDIRECT_ARM,
- /* pointer to address in an ARM LDR/STR instruction offset by 8 bytes */
+ // pointer to address in an ARM LDR/STR instruction offset by 8 bytes
RC_INDIRECT_ARM_PC,
- /* absolute address in a 2 byte location */
+ // absolute address in a 2 byte location
RC_ABSOLUTE_2,
- /* absolute address in a 1 byte location */
+ // absolute address in a 1 byte location
RC_ABSOLUTE_1,
- /* absolute address in a PowerPC LIS/ORI/SLDI/ORIS/ORI sequence */
+ // absolute address in a PowerPC LIS/ORI/SLDI/ORIS/ORI sequence
RC_ABSOLUTE_PPC_2_2_2_2,
};
static const cell rel_indirect_arm_mask = 0x00000fff;
static const cell rel_relative_arm_3_mask = 0x00ffffff;
-/* code relocation table consists of a table of entries for each fixup */
+// code relocation table consists of a table of entries for each fixup
struct relocation_entry {
uint32_t value;
value = (uint32_t)((rel_type << 28) | (rel_class << 24) | offset);
}
- relocation_type rel_type() {
+ relocation_type type() {
return (relocation_type)((value & 0xf0000000) >> 28);
}
- relocation_class rel_class() {
+ relocation_class klass() {
return (relocation_class)((value & 0x0f000000) >> 24);
}
- cell rel_offset() { return (value & 0x00ffffff); }
+ cell offset() { return (value & 0x00ffffff); }
int number_of_parameters() {
- switch (rel_type()) {
+ switch (type()) {
case RT_VM:
return 1;
case RT_DLSYM:
case RT_MEGAMORPHIC_CACHE_HITS:
case RT_CARDS_OFFSET:
case RT_DECKS_OFFSET:
- case RT_EXCEPTION_HANDLER:
case RT_INLINE_CACHE_MISS:
case RT_SAFEPOINT:
return 0;
default:
- critical_error("Bad rel type in number_of_parameters()", rel_type());
- return -1; /* Can't happen */
+ critical_error("Bad rel type in number_of_parameters()", type());
+ return -1; // Can't happen
}
}
};
instruction_operand(relocation_entry rel, code_block* compiled,
cell index);
- relocation_type rel_type() { return rel.rel_type(); }
-
- cell rel_offset() { return rel.rel_offset(); }
-
fixnum load_value_2_2();
fixnum load_value_2_2_2_2();
fixnum load_value_masked(cell mask, cell bits, cell shift);
fixnum load_value(cell relative_to);
- fixnum load_value();
- code_block* load_code_block(cell relative_to);
code_block* load_code_block();
void store_value_2_2(fixnum value);
void store_value_2_2_2_2(fixnum value);
void store_value_masked(fixnum value, cell mask, cell shift);
void store_value(fixnum value);
- void store_code_block(code_block* compiled);
};
}
projects / factor.git / blobdiff