Add mmap and munmap to SysCalls

Signed-off-by: Mateusz Hoppe <mateusz.hoppe@intel.com>

opencl/test/unit_test/os_interface/linux/sys_calls_linux_ult.cpp

@@ -40,6 +40,8 @@ constexpr unsigned long int invalidIoctl = static_cast<unsigned long int>(-1);
 int setErrno = 0;
 int fstatFuncRetVal = 0;
 uint32_t preadFuncCalled = 0u;
+uint32_t mmapFuncCalled = 0u;
+uint32_t munmapFuncCalled = 0u;
 
 int close(int fileDescriptor) {
     closeFuncCalled++;
@@ -137,5 +139,15 @@ ssize_t pread(int fd, void *buf, size_t count, off_t offset) {
     return 0;
 }
 
+void *mmap(void *addr, size_t size, int prot, int flags, int fd, off_t off) {
+    mmapFuncCalled++;
+    return 0;
+}
+
+int munmap(void *addr, size_t size) {
+    munmapFuncCalled++;
+    return 0;
+}
+
 } // namespace SysCalls
 } // namespace NEO

shared/source/os_interface/linux/sys_calls.h

@@ -8,6 +8,7 @@
 #pragma once
 #include <iostream>
 #include <poll.h>
+#include <sys/mman.h>
 #include <sys/stat.h>
 
 namespace NEO {
@@ -22,5 +23,7 @@ int readlink(const char *path, char *buf, size_t bufsize);
 int poll(struct pollfd *pollFd, unsigned long int numberOfFds, int timeout);
 int fstat(int fd, struct stat *buf);
 ssize_t pread(int fd, void *buf, size_t count, off_t offset);
+void *mmap(void *addr, size_t size, int prot, int flags, int fd, off_t off);
+int munmap(void *addr, size_t size);
 } // namespace SysCalls
 } // namespace NEO

shared/source/os_interface/linux/sys_calls_linux.cpp

@@ -65,5 +65,12 @@ ssize_t pread(int fd, void *buf, size_t count, off_t offset) {
     return ::pread(fd, buf, count, offset);
 }
 
+void *mmap(void *addr, size_t size, int prot, int flags, int fd, off_t off) {
+    return ::mmap(addr, size, prot, flags, fd, off);
+}
+
+int munmap(void *addr, size_t size) {
+    return ::munmap(addr, size);
+}
 } // namespace SysCalls
 } // namespace NEO