mprotect_test.cpp

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#define XBYAK_NO_OP_NAMES
#include "xbyak/xbyak.h"
#include <string.h>
#include <vector>
 
struct Code : Xbyak::CodeGenerator {
    Code(int x)
    {
        mov(eax, x);
        ret();
    }
};
 
int main()
    try
{
#ifdef XBYAK_USE_MMAP_ALLOCATOR
    puts("use Allocator with mmap");
#else
    puts("use Allocator with posix_memalign");
#endif
    const int N = 70000;
    std::vector<Code*> v(N);
    for (int i = 0; i < N; i++) {
        v[i] = new Code(i);
    }
    long long sum = 0;
    for (int i = 0; i < N; i++) {
        sum += v[i]->getCode<int (*)()>()();
    }
    for (int i = 0; i < N; i++) {
        delete v[i];
    }
    printf("sum=%lld\n", sum);
} catch (std::exception& e) {
    printf("ERR %s\n", e.what());
}