ppsspp: fix riscv64-musl

srcpkgs/ppsspp/patches/riscv-musl.patch

@@ -0,0 +1,23 @@
+--- a/Common/RiscVEmitter.cpp	2024-02-04 14:08:02.000000000 +0100
++++ -	2024-02-16 16:49:35.344381020 +0100
+@@ -20,6 +20,7 @@
+ #include <cstring>
+ #if PPSSPP_ARCH(RISCV64) && PPSSPP_PLATFORM(LINUX)
+ #include <sys/cachectl.h>
++#include <sys/syscall.h>
+ #endif
+ #include "Common/BitScan.h"
+ #include "Common/CPUDetect.h"
+@@ -1139,8 +1140,12 @@
+ void RiscVEmitter::FlushIcacheSection(const u8 *start, const u8 *end) {
+ #if PPSSPP_ARCH(RISCV64)
+ #if PPSSPP_PLATFORM(LINUX)
++#ifdef __GLIBC__
+ 	__riscv_flush_icache((char *)start, (char *)end, 0);
+ #else
++	syscall(__NR_riscv_flush_icache, (char*)start, (char*)end, 0UL);
++#endif 
++#else
+ 	// TODO: This might only correspond to a local hart icache clear, which is no good.
+ 	__builtin___clear_cache((char *)start, (char *)end);
+ #endif