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Minecraft.Client/Orbis/user_malloc_for_tls.cpp

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+/* SCE CONFIDENTIAL
+ PlayStation(R)4 Programmer Tool Runtime Library Release 01.600.051
+ * Copyright (C) 2013 Sony Computer Entertainment Inc.
+ * All Rights Reserved.
+ */
+extern "C"
+{
+
+#include <stdlib.h>
+#include <mspace.h>
+#include <kernel.h>
+
+#define HEAP_SIZE (4 * 1024 * 1024)
+
+static SceLibcMspace s_mspace;
+static off_t s_memStart;
+static size_t s_memLength = 4 * 1024 * 1024;
+static size_t s_memAlign = 2 * 1024 * 1024;
+
+int user_malloc_init_for_tls(void);
+int user_malloc_fini_for_tls(void);
+void *user_malloc_for_tls(size_t size);
+void user_free_for_tls(void *ptr);
+int user_posix_memalign_for_tls(void **ptr, size_t boundary, size_t size);
+
+//E Replace _malloc_init_for_tls function.
+//J _malloc_init_for_tls 関数と置き換わる
+int user_malloc_init_for_tls(void)
+{
+	int res;
+	void *addr;
+	
+	//E Allocate direct memory
+	//J ダイレクトメモリを割り当てる
+	res = sceKernelAllocateDirectMemory(0, SCE_KERNEL_MAIN_DMEM_SIZE, s_memLength, s_memAlign, SCE_KERNEL_WB_ONION, &s_memStart);
+	if (res < 0) {
+		//E Error handling
+		//J エラー処理
+		return 1;
+	}
+
+	addr = NULL;
+	//E Map direct memory to the process address space
+	//J ダイレクトメモリをプロセスアドレス空間にマップする
+	res = sceKernelMapDirectMemory(&addr, HEAP_SIZE, SCE_KERNEL_PROT_CPU_READ | SCE_KERNEL_PROT_CPU_WRITE, 0, s_memStart, s_memAlign);
+	if (res < 0) {
+		//E Error handling
+		//J エラー処理
+		return 1;
+	}
+
+	//E Generate mspace
+	//J mspace を生成する
+	s_mspace = sceLibcMspaceCreate("User Malloc For TLS", addr, HEAP_SIZE, 0);
+	if (s_mspace == NULL) {
+		//E Error handling
+		//J エラー処理
+		return 1;
+	}
+
+	return 0;
+}
+
+//E Replace _malloc_fini_for_tls function.
+//J _malloc_fini_for_tls 関数と置き換わる
+int user_malloc_fini_for_tls(void)
+{
+	int res;
+
+	if (s_mspace != NULL) {
+		//E Free mspace
+		//J mspace を解放する
+		res = sceLibcMspaceDestroy(s_mspace);
+		if (res != 0) {
+			//E Error handling
+			//J エラー処理
+			return 1;
+		}
+	}
+
+	//E Release direct memory
+	//J ダイレクトメモリを解放する
+	res = sceKernelReleaseDirectMemory(s_memStart, s_memLength);
+	if (res < 0) {
+		//E Error handling
+		//J エラー処理
+		return 1;
+	}
+
+	return 0;
+}
+
+//E Replace _malloc_for_tls function.
+//J _malloc_for_tls 関数と置き換わる
+void *user_malloc_for_tls(size_t size)
+{
+	return sceLibcMspaceMalloc(s_mspace, size);
+}
+
+//E Replace _free_for_tls function.
+//J _free_for_tls 関数と置き換わる
+void user_free_for_tls(void *ptr)
+{
+	sceLibcMspaceFree(s_mspace, ptr);
+}
+
+//E Replace _posix_memalign_for_tls function.
+//J _posix_memalign_for_tls 関数と置き換わる
+int user_posix_memalign_for_tls(void **ptr, size_t boundary, size_t size)
+{
+	return sceLibcMspacePosixMemalign(s_mspace, ptr, boundary, size);
+}
+
+} // extern "c"