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Match and link __va_arg and ptmf

This commit is contained in:
Phillip Stephens 2022-10-10 02:30:25 -07:00
parent 27a6cfe95f
commit adaa52fede
8 changed files with 116 additions and 15 deletions
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4
asm/MetroidPrime/CControlMapper.s
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@ -2083,9 +2083,9 @@ lbl_8000D734:
/* 8000D74C 0000A6AC 38 84 E0 50 */ addi r4, r4, "__dt__Q24rstl21reserved_vector<b,65>Fv"@l
/* 8000D750 0000A6B0 38 A5 78 F8 */ addi r5, r5, lbl_804578F8@l
/* 8000D754 0000A6B4 48 37 BF 39 */ bl __register_global_object
/* 8000D758 0000A6B8 3C 60 80 3E */ lis r3, lbl_803D8598@ha
/* 8000D758 0000A6B8 3C 60 80 3E */ lis r3, __ptmf_null@ha
/* 8000D75C 0000A6BC 83 BF 00 68 */ lwz r29, 0x68(r31)
/* 8000D760 0000A6C0 38 63 85 98 */ addi r3, r3, lbl_803D8598@l
/* 8000D760 0000A6C0 38 63 85 98 */ addi r3, r3, __ptmf_null@l
/* 8000D764 0000A6C4 3B 9F 01 08 */ addi r28, r31, 0x108
/* 8000D768 0000A6C8 80 03 00 04 */ lwz r0, 4(r3)
/* 8000D76C 0000A6CC 93 A1 01 20 */ stw r29, 0x120(r1)

4
asm/MetroidPrime/Enemies/CAi.s
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@ -2347,8 +2347,8 @@ GetStateFunc__10CAiFuncMapCFPCc:
/* 800A3218 000A0178 38 61 00 1C */ addi r3, r1, 0x1c
/* 800A321C 000A017C 93 A1 00 44 */ stw r29, 0x44(r1)
/* 800A3220 000A0180 80 04 00 04 */ lwz r0, 4(r4)
/* 800A3224 000A0184 3C 80 80 3E */ lis r4, lbl_803D8598@ha
/* 800A3228 000A0188 84 C4 85 98 */ lwzu r6, lbl_803D8598@l(r4)
/* 800A3224 000A0184 3C 80 80 3E */ lis r4, __ptmf_null@ha
/* 800A3228 000A0188 84 C4 85 98 */ lwzu r6, __ptmf_null@l(r4)
/* 800A322C 000A018C 89 2D A2 C4 */ lbz r9, lbl_805A8E84@sda21(r13)
/* 800A3230 000A0190 54 00 20 36 */ slwi r0, r0, 4
/* 800A3234 000A0194 81 1F 00 0C */ lwz r8, 0xc(r31)

9
asm/MetroidPrime/Enemies/CStateMachine.s
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@ -188,9 +188,9 @@ lbl_8007F840:
/* 8007F858 0007C7B8 80 1C 00 2C */ lwz r0, 0x2c(r28)
/* 8007F85C 0007C7BC 2C 00 00 00 */ cmpwi r0, 0
/* 8007F860 0007C7C0 41 82 03 0C */ beq lbl_8007FB6C
/* 8007F864 0007C7C4 3C 60 80 3E */ lis r3, lbl_803D8598@ha
/* 8007F864 0007C7C4 3C 60 80 3E */ lis r3, __ptmf_null@ha
/* 8007F868 0007C7C8 C3 E2 89 80 */ lfs f31, lbl_805AA6A0@sda21(r2)
/* 8007F86C 0007C7CC 3A 23 85 98 */ addi r17, r3, lbl_803D8598@l
/* 8007F86C 0007C7CC 3A 23 85 98 */ addi r17, r3, __ptmf_null@l
/* 8007F870 0007C7D0 3A 00 00 00 */ li r16, 0
/* 8007F874 0007C7D4 48 00 00 B4 */ b lbl_8007F928
lbl_8007F878:
@ -303,9 +303,9 @@ lbl_8007F9C0:
/* 8007F9F8 0007C958 7C 00 00 34 */ cntlzw r0, r0
/* 8007F9FC 0007C95C 54 14 D9 7E */ srwi r20, r0, 5
/* 8007FA00 0007C960 40 80 00 D8 */ bge lbl_8007FAD8
/* 8007FA04 0007C964 3C 80 80 3E */ lis r4, lbl_803D8598@ha
/* 8007FA04 0007C964 3C 80 80 3E */ lis r4, __ptmf_null@ha
/* 8007FA08 0007C968 38 60 00 00 */ li r3, 0
/* 8007FA0C 0007C96C 38 C4 85 98 */ addi r6, r4, lbl_803D8598@l
/* 8007FA0C 0007C96C 38 C4 85 98 */ addi r6, r4, __ptmf_null@l
/* 8007FA10 0007C970 80 1E 00 14 */ lwz r0, 0x14(r30)
/* 8007FA14 0007C974 80 FE 00 18 */ lwz r7, 0x18(r30)
/* 8007FA18 0007C978 80 A6 00 00 */ lwz r5, 0(r6)
@ -862,4 +862,3 @@ lbl_803CD628:
# ROM: 0x3CA628
.asciz "??(??)"
.balign 4

4
asm/Runtime/ptmf.s
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@ -3,8 +3,8 @@
.section .rodata
.balign 8
.global lbl_803D8598
lbl_803D8598:
.global __ptmf_null
__ptmf_null:
.skip 16
.section .text, "ax"

4
configure.py
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@ -842,11 +842,11 @@ LIBS = [
"cflags": "$cflags_runtime",
"objects": [
["Runtime/__mem", True],
"Runtime/__va_arg",
["Runtime/__va_arg", True],
["Runtime/global_destructor_chain", True],
["Runtime/CPlusLibPPC", True],
"Runtime/NMWException",
"Runtime/ptmf",
["Runtime/ptmf", True],
"Runtime/runtime",
["Runtime/__init_cpp_exceptions", True],
"Runtime/Gecko_ExceptionPPC",

4
obj_files.mk
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@ -717,11 +717,11 @@ VI_FILES :=\
MSL_PPCEABI_BARE_H :=\
$(BUILD_DIR)/src/Runtime/__mem.o\
$(BUILD_DIR)/asm/Runtime/__va_arg.o\
$(BUILD_DIR)/src/Runtime/__va_arg.o\
$(BUILD_DIR)/src/Runtime/global_destructor_chain.o\
$(BUILD_DIR)/src/Runtime/CPlusLibPPC.o\
$(BUILD_DIR)/asm/Runtime/NMWException.o\
$(BUILD_DIR)/asm/Runtime/ptmf.o\
$(BUILD_DIR)/src/Runtime/ptmf.o\
$(BUILD_DIR)/asm/Runtime/runtime.o\
$(BUILD_DIR)/src/Runtime/__init_cpp_exceptions.o\
$(BUILD_DIR)/asm/Runtime/Gecko_ExceptionPPC.o\

57
src/Runtime/__va_arg.c Normal file
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@ -0,0 +1,57 @@
typedef struct {
char gpr;
char fpr;
char reserved[2];
char* input_arg_area;
char* reg_save_area;
} va_list[1];
typedef enum {
ARGPOINTER,
WORD,
DOUBLEWORD,
REAL,
} _va_arg_type;
#define ALIGN(addr, amount) (((unsigned int)(addr) + ((amount)-1)) & ~((amount)-1))
void* __va_arg(va_list ap, _va_arg_type type) {
char* addr;
char* curGprPtr = &(ap->gpr);
int curGpr = ap->gpr;
int max = 8;
int size = 4;
int inc = 1;
int even = 0;
int fprOffset = 0;
int regSize = 4;
if (type == 3) {
curGprPtr = &(ap->fpr);
curGpr = ap->fpr;
size = 8;
fprOffset = 8 * 4;
regSize = 8;
}
if (type == 2) {
size = 8;
max = max - 1;
if (curGpr & 1)
even = 1;
inc = 2;
}
if (curGpr < max) {
curGpr += even;
addr = ap->reg_save_area + fprOffset + (curGpr * regSize);
*curGprPtr = curGpr + inc;
} else {
*curGprPtr = 8;
addr = ap->input_arg_area;
addr = (char*)ALIGN(addr, size);
ap->input_arg_area = addr + size;
}
if (type == ARGPOINTER)
addr = *((char**)addr);
return addr;
}

45
src/Runtime/ptmf.c Normal file
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@ -0,0 +1,45 @@
typedef struct PTMF {
long this_delta; // delta to this pointer
long vtbl_offset; // offset in vtable (-1: not a virtual function)
union {
void* func_addr; // nonvirtual function address
long ventry_offset; // offset of virtual function entry in vtable
} func_data;
} PTMF;
const PTMF __ptmf_null = { 0, 0, 0 };
/* clang-format off*/
asm void __ptmf_test(register PTMF* ptmf) {
nofralloc
lwz r5, PTMF.this_delta(ptmf)
lwz r6, PTMF.vtbl_offset(ptmf)
lwz r7, PTMF.func_data(ptmf)
li r3, 1
cmpwi cr0, r5, 0
cmpwi cr6, r6, 0
cmpwi cr7, r7, 0
bnelr cr0
bnelr cr6
bnelr cr7
li r3, 0
blr
}
asm void __ptmf_scall(...) {
nofralloc
lwz r0, PTMF.this_delta(r12)
lwz r11, PTMF.vtbl_offset(r12)
lwz r12, PTMF.func_data(r12)
add r3, r3, r0
cmpwi r11, 0
blt @1
lwzx r12, r3, r12
lwzx r12, r12, r11
@1
mtctr r12
bctr
}
/* clang-format - on*/