Merge "Use specific RSS check under 64-bit Scudo" am: 90a050ec am: a01574e5

#include "MediaUtils.h"

extern "C" size_t __cfi_shadow_size();

extern "C" void __scudo_set_rss_limit(size_t, int) __attribute__((weak));

namespace android {

        maxMem = propVal;

    }

    // If 64-bit Scudo is in use, enforce the hard RSS limit (in MB).

    if (maxMem != SIZE_MAX && sizeof(void *) == 8 &&

        &__scudo_set_rss_limit != 0) {

      __scudo_set_rss_limit(maxMem >> 20, 1);

      ALOGV("Scudo hard RSS limit set to %zu MB", maxMem >> 20);

      return;

    }

    // Increase by the size of the CFI shadow mapping. Most of the shadow is not

    // backed with physical pages, and it is possible for the result to be

    // higher than total physical memory. This is fine for RLIMIT_AS.