tests/sys_cachectl_test.cpp

/*
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#include <gtest/gtest.h>

#if __has_include(<sys/cachectl.h>)
#include <sys/cachectl.h>
#endif

TEST(sys_cachectl, __riscv_flush_icache) {
#if defined(__riscv) && __has_include(<sys/cachectl.h>)
  // As of Linux 6.4, the address range is ignored (so nullptr is fine),
  // and the flags you actually want are 0 ("all threads"),
  // but we test the unusual flag just to make sure it works.
  ASSERT_EQ(0, __riscv_flush_icache(nullptr, nullptr, SYS_RISCV_FLUSH_ICACHE_LOCAL));
#else
  GTEST_SKIP() << "__riscv_flush_icache requires riscv64";
#endif
}