libretro, enable drc usage on WiiU

diff --git a/Makefile.libretro b/Makefile.libretro
index 9effd3c..aa20d45 100644 (file)
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -281,12 +281,9 @@ else ifeq ($(platform), wiiu)
        CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
        CXX = $(DEVKITPPC)/bin/powerpc-eabi-g++$(EXE_EXT)
        AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
-       CFLAGS += -DGEKKO -DWIIU -DHW_RVL -mwup -mcpu=750 -meabi -mhard-float -D__ppc__ -DMSB_FIRST
+       CFLAGS += -DGEKKO -DWIIU -DHW_RVL -DHW_WUP -mwup -mcpu=750 -meabi -mhard-float -D__ppc__ -DMSB_FIRST
        STATIC_LINKING = 1
        NO_MMAP = 1
-       # Wii U has memory mapped in a way not suitable for DRC
-       use_sh2drc = 0
-       use_svpdrc = 0
 
 # Nintendo Switch (libtransistor)
 else ifeq ($(platform), switch)

diff --git a/platform/libretro/libretro.c b/platform/libretro/libretro.c
index ea640c2..4a12c68 100644 (file)
--- a/platform/libretro/libretro.c
+++ b/platform/libretro/libretro.c
@@ -572,8 +572,12 @@ void plat_munmap(void *ptr, size_t size)
 void *plat_mem_get_for_drc(size_t size)
 {
    void *mem = NULL;
-#ifdef VITA
+#if defined VITA
    sceKernelGetMemBlockBase(sceBlock, &mem);
+#elif defined HW_WUP
+   // For WiiU, a slice of RWX memory left from the exploit is used, see:
+   // https://github.com/embercold/pcsx_rearmed/commit/af0453223
+   mem = (void *)(0x01000000 - size);
 #endif
    return mem;
 }