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@@ -523,7 +523,8 @@ MAX_RELEASE_CHECK_RATE default: 4095 unless not HAVE_MMAP
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/* Customizations { */
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-#define HAVE_MMAP 0
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+#define HAVE_MMAP 1
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+#define MSPACES 1
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#define LACKS_ERRNO_H
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#define LACKS_FCNTL_H
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#define LACKS_SCHED_H
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@@ -536,7 +537,7 @@ MAX_RELEASE_CHECK_RATE default: 4095 unless not HAVE_MMAP
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#define USE_DL_PREFIX 1
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#define USE_LOCKS 1
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#define USE_SPIN_LOCKS 1
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-
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+#define HAVE_MREMAP 0
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#define malloc_getpagesize ((size_t)4096U)
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#include <stddef.h>
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@@ -545,7 +546,22 @@ MAX_RELEASE_CHECK_RATE default: 4095 unless not HAVE_MMAP
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#define EINVAL 22
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extern __thread int errno;
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-
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+#if defined(__linux__)
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+#define O_RDWR 2
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+#define PROT_READ 1
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+#define PROT_WRITE 2
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+#elif defined(__redox__)
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+#define O_RDWR 196608
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+#define PROT_READ 4
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+#define PROT_WRITE 2
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+#endif /*defined(__redox__)*/
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+
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+#define MAP_PRIVATE 2
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+typedef long off_t;
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+
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+int open(const char *pathname, int flags);
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+void *mmap(void *addr, size_t len, int prot, int flags, int fildes, off_t off);
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+int munmap(void *addr, size_t len);
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void abort(void);
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void *memcpy(void *dest, const void *src, size_t n);
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void *memset(void *s, int c, size_t n);
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