common: host_memory: Implement for Android.
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@ -11,6 +11,10 @@
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#elif defined(__linux__) || defined(__FreeBSD__) // ^^^ Windows ^^^ vvv Linux vvv
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#elif defined(__linux__) || defined(__FreeBSD__) // ^^^ Windows ^^^ vvv Linux vvv
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#ifdef ANDROID
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#include <android/sharedmem.h>
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#endif
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#ifndef _GNU_SOURCE
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#endif
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@ -366,17 +370,20 @@ public:
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}
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}
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// Backing memory initialization
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// Backing memory initialization
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#if defined(__FreeBSD__) && __FreeBSD__ < 13
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#ifdef ANDROID
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fd = ASharedMemory_create("HostMemory", backing_size);
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#elif defined(__FreeBSD__) && __FreeBSD__ < 13
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// XXX Drop after FreeBSD 12.* reaches EOL on 2024-06-30
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// XXX Drop after FreeBSD 12.* reaches EOL on 2024-06-30
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fd = shm_open(SHM_ANON, O_RDWR, 0600);
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fd = shm_open(SHM_ANON, O_RDWR, 0600);
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#else
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#else
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fd = memfd_create("HostMemory", 0);
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fd = memfd_create("HostMemory", 0);
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#endif
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#endif
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if (fd == -1) {
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if (fd < 0) {
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LOG_CRITICAL(HW_Memory, "memfd_create failed: {}", strerror(errno));
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LOG_CRITICAL(HW_Memory, "memfd_create failed: {}", strerror(errno));
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throw std::bad_alloc{};
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throw std::bad_alloc{};
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}
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}
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#ifndef ANDROID
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// Defined to extend the file with zeros
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// Defined to extend the file with zeros
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int ret = ftruncate(fd, backing_size);
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int ret = ftruncate(fd, backing_size);
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if (ret != 0) {
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if (ret != 0) {
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@ -384,6 +391,7 @@ public:
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strerror(errno));
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strerror(errno));
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throw std::bad_alloc{};
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throw std::bad_alloc{};
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}
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}
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#endif
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backing_base = static_cast<u8*>(
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backing_base = static_cast<u8*>(
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mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));
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mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));
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