From 7779a34215ce04fb38dc3a587484a4e921760510 Mon Sep 17 00:00:00 2001
From: Noah McQueen <nzmcqueen1996@gmail.com>
Date: Thu, 12 Oct 2023 14:47:18 -0600
Subject: [PATCH] Some Runtime.PPCEABI.H files

---
 configure.py                          |  4 +--
 include/Runtime.PPCEABI.H/__va_arg.h  |  4 +--
 src/Runtime.PPCEABI.H/CPlusLibPPC.cp  | 26 +++++++++++++++++
 src/Runtime.PPCEABI.H/GCN_mem_alloc.c | 33 +++++++++++++++++++++
 src/Runtime.PPCEABI.H/__va_arg.c      | 42 +++++++++++++++++++++++++++
 5 files changed, 105 insertions(+), 4 deletions(-)
 create mode 100644 src/Runtime.PPCEABI.H/CPlusLibPPC.cp
 create mode 100644 src/Runtime.PPCEABI.H/GCN_mem_alloc.c
 create mode 100644 src/Runtime.PPCEABI.H/__va_arg.c

diff --git a/configure.py b/configure.py
index 1f6dedf35..1be2bb7a4 100644
--- a/configure.py
+++ b/configure.py
@@ -1066,9 +1066,9 @@ config.libs = [
         "host": False,
         "objects": [
             Object(NonMatching, "Runtime.PPCEABI.H/__mem.c"),
-            Object(NonMatching, "Runtime.PPCEABI.H/__va_arg.c"),
+            Object(Matching,    "Runtime.PPCEABI.H/__va_arg.c"),
             Object(Matching,    "Runtime.PPCEABI.H/global_destructor_chain.c"),
-            Object(NonMatching, "Runtime.PPCEABI.H/CPlusLibPPC.cp"),
+            Object(Matching,    "Runtime.PPCEABI.H/CPlusLibPPC.cp"),
             Object(NonMatching, "Runtime.PPCEABI.H/NMWException.cp"),
             Object(NonMatching, "Runtime.PPCEABI.H/ptmf.c"),
             Object(NonMatching, "Runtime.PPCEABI.H/runtime.c"),
diff --git a/include/Runtime.PPCEABI.H/__va_arg.h b/include/Runtime.PPCEABI.H/__va_arg.h
index 64378bddb..872e91496 100644
--- a/include/Runtime.PPCEABI.H/__va_arg.h
+++ b/include/Runtime.PPCEABI.H/__va_arg.h
@@ -28,9 +28,9 @@ void* __va_arg(_va_list_struct*, int);
 // __builtin_va_info: initialize the __va_list_struct
 // _var_arg_typeof: convert type to integer for __va_arg
 #define __va_start(list, fmt) __builtin_va_info(&list)
-#define __va_arg(list, type) (*((type*)__va_arg(ap, _var_arg_typeof(type))))
+// #define __va_arg(list, type) (*((type*)__va_arg(ap, _var_arg_typeof(type))))
 #define va_start __va_start
-#define va_arg __va_arg
+// #define va_arg __va_arg
 #define va_end __va_end
 #define va_list __va_list
 #define __va_end(list) ((void)0)
diff --git a/src/Runtime.PPCEABI.H/CPlusLibPPC.cp b/src/Runtime.PPCEABI.H/CPlusLibPPC.cp
new file mode 100644
index 000000000..ef34c1f89
--- /dev/null
+++ b/src/Runtime.PPCEABI.H/CPlusLibPPC.cp
@@ -0,0 +1,26 @@
+#include "dolphin/types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void* __copy(char*, char*, size_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+void* __copy(char* dest, char* src, size_t size) {
+    char* p;
+
+    if (dest && size) {
+        p = dest;
+        do {
+            *p = *src;
+            ++p;
+            ++src;
+            --size;
+        } while (size);
+    }
+    return dest;
+}
\ No newline at end of file
diff --git a/src/Runtime.PPCEABI.H/GCN_mem_alloc.c b/src/Runtime.PPCEABI.H/GCN_mem_alloc.c
new file mode 100644
index 000000000..f9f4d65f7
--- /dev/null
+++ b/src/Runtime.PPCEABI.H/GCN_mem_alloc.c
@@ -0,0 +1,33 @@
+#include "Runtime.PPCEABI.H/GCN_mem_alloc.h"
+#include "dolphin/os/OS.h"
+
+
+inline static void InitDefaultHeap() {
+    void* arenaLo;
+    void* arenaHi;
+
+    /* NONMATCH: OSReport strings should be two separate rodata entries with padding */
+    OSReport("GCN_Mem_Alloc.c : InitDefaultHeap. No Heap Available\n");
+    OSReport("Metrowerks CW runtime library initializing default heap\n");
+
+    arenaLo = OSGetArenaLo();
+    arenaHi = OSGetArenaHi();
+
+    arenaLo = OSInitAlloc(arenaLo, arenaHi, 1);
+    OSSetArenaLo(arenaLo);
+
+    arenaLo = (void*)OSRoundUp32B(arenaLo);
+    arenaHi = (void*)OSRoundDown32B(arenaHi);
+
+    OSSetCurrentHeap(OSCreateHeap(arenaLo, arenaHi));
+    OSSetArenaLo(arenaLo = arenaHi);
+}
+
+void __sys_free(void* ptr) {
+    if (__OSCurrHeap == -1) {
+        InitDefaultHeap();
+    }
+
+    OSFreeToHeap(__OSCurrHeap, ptr);
+    return;
+}
\ No newline at end of file
diff --git a/src/Runtime.PPCEABI.H/__va_arg.c b/src/Runtime.PPCEABI.H/__va_arg.c
new file mode 100644
index 000000000..ca2514940
--- /dev/null
+++ b/src/Runtime.PPCEABI.H/__va_arg.c
@@ -0,0 +1,42 @@
+#include "Runtime.PPCEABI.H/__va_arg.h"
+
+void* __va_arg(va_list v_list, int type) {
+	char* addr;
+	char* reg      = &(v_list->gpr);
+	s32 g_reg      = v_list->gpr;
+	s32 maxsize    = 8;
+	s32 size       = 4;
+	s32 increment  = 1;
+	s32 even       = 0;
+	s32 fpr_offset = 0;
+	s32 regsize    = 4;
+
+	if (type == 3) {
+		reg        = &(v_list->fpr);
+		g_reg      = v_list->fpr;
+		size       = 8;
+		fpr_offset = 32;
+		regsize    = 8;
+	}
+	if (type == 2) {
+		size = 8;
+		maxsize--;
+		if (g_reg & 1)
+			even = 1;
+		increment = 2;
+	}
+	if (g_reg < maxsize) {
+		g_reg += even;
+		addr = v_list->reg_save_area + fpr_offset + (g_reg * regsize);
+		*reg = g_reg + increment;
+	} else {
+		*reg                    = 8;
+		addr                    = v_list->input_arg_area;
+		addr                    = (char*)(((u32)(addr) + ((size)-1)) & ~((size)-1));
+		v_list->input_arg_area = addr + size;
+	}
+	if (type == 0)
+		addr = *((char**)addr);
+
+	return addr;
+}
\ No newline at end of file