[Minios-devel,v2,5/5] plat/linuxu: Add fstat and open host system calls

[gabrielmocanu <gabi.mocanu98@xxxxxxxxx>]

From: Robert Hrusecky <roberth@xxxxxxxxxxxxx>

Add system call number for arm_32 and x86_64 for the fstat system call
Implement system call wrapper function for open and fstat
Add MAP_PRIVATE constant for use with mmap

Signed-off-by: Robert Hrusecky <roberth@xxxxxxxxxxxxx>
Signed-off-by: Omar Jamil <omarj2898@xxxxxxxxx>
Signed-off-by: Sachin Beldona <sachinbeldona@xxxxxxxxxx>
Signed-off-by: Gabriel Mocanu <gabi.mocanu98@xxxxxxxxx>
---
 plat/linuxu/include/linuxu/mode.h           |  8 +++++
 plat/linuxu/include/linuxu/stat.h           | 39 +++++++++++++++++++++
 plat/linuxu/include/linuxu/syscall-arm_32.h |  1 +
 plat/linuxu/include/linuxu/syscall-x86_64.h |  1 +
 plat/linuxu/include/linuxu/syscall.h        | 20 +++++++++++
 5 files changed, 69 insertions(+)
 create mode 100644 plat/linuxu/include/linuxu/mode.h
 create mode 100644 plat/linuxu/include/linuxu/stat.h

diff --git a/plat/linuxu/include/linuxu/mode.h 
b/plat/linuxu/include/linuxu/mode.h
new file mode 100644
index 0000000..ac2f40e
--- /dev/null
+++ b/plat/linuxu/include/linuxu/mode.h
@@ -0,0 +1,8 @@
+#ifndef __LINUXU_MODE_H__
+#define __LINUXU_MODE_H__
+
+#define K_O_RDONLY 0x0000
+
+typedef unsigned k_mode_t;
+
+#endif /* __LINUXU_MODE_H__ */
diff --git a/plat/linuxu/include/linuxu/stat.h 
b/plat/linuxu/include/linuxu/stat.h
new file mode 100644
index 0000000..d500b0a
--- /dev/null
+++ b/plat/linuxu/include/linuxu/stat.h
@@ -0,0 +1,39 @@
+#ifndef __LINUXU_STAT_H__
+#define __LINUXU_STAT_H__
+
+#include <linuxu/time.h>
+#include <linuxu/mode.h>
+
+typedef __u64 k_dev_t;
+typedef __u64 k_ino_t;
+typedef __u32 k_nlink_t;
+typedef unsigned k_uid_t;
+typedef unsigned k_gid_t;
+typedef unsigned k_id_t;
+typedef __off k_off_t;
+typedef long k_blksize_t;
+typedef __s64 k_blkcnt_t;
+
+
+struct k_stat {
+  
+  k_dev_t st_dev;
+  k_ino_t st_ino;
+  k_nlink_t st_nlink;
+
+  k_mode_t st_mode;
+  k_uid_t st_uit;
+  k_gid_t st_gid;
+  unsigned int __pad0;
+  k_dev_t st_rdev;
+  k_off_t st_size;
+  k_blksize_t st_blksize;
+  k_blkcnt_t st_blocks;
+
+  struct k_timespec st_atim;
+  struct k_timespec st_mtim;
+  struct k_timespec st_ctim;
+
+};
+
+#endif /* __LINUXU_STAT_H__ */
diff --git a/plat/linuxu/include/linuxu/syscall-arm_32.h 
b/plat/linuxu/include/linuxu/syscall-arm_32.h
index ef9323b..5d1b1e2 100644
--- a/plat/linuxu/include/linuxu/syscall-arm_32.h
+++ b/plat/linuxu/include/linuxu/syscall-arm_32.h
@@ -46,6 +46,7 @@
 #define __SC_MUNMAP    91
 #define __SC_EXIT       1
 #define __SC_IOCTL     54
+#define __SC_FSTAT    108
 #define __SC_RT_SIGPROCMASK   126
 #define __SC_ARCH_PRCTL       172
 #define __SC_RT_SIGACTION     174
diff --git a/plat/linuxu/include/linuxu/syscall-x86_64.h 
b/plat/linuxu/include/linuxu/syscall-x86_64.h
index 553f0ba..0dd280e 100644
--- a/plat/linuxu/include/linuxu/syscall-x86_64.h
+++ b/plat/linuxu/include/linuxu/syscall-x86_64.h
@@ -42,6 +42,7 @@
 #define __SC_WRITE   1
 #define __SC_OPEN    2
 #define __SC_CLOSE   3
+#define __SC_FSTAT   5
 #define __SC_MMAP    9
 #define __SC_MUNMAP 11
 #define __SC_RT_SIGACTION   13
diff --git a/plat/linuxu/include/linuxu/syscall.h 
b/plat/linuxu/include/linuxu/syscall.h
index 0dca7c5..1b590b1 100644
--- a/plat/linuxu/include/linuxu/syscall.h
+++ b/plat/linuxu/include/linuxu/syscall.h
@@ -39,6 +39,7 @@
 #include <linuxu/time.h>
 #include <sys/types.h>
 #include <linuxu/signal.h>
+#include <linuxu/stat.h>
 
 #if defined __X86_64__
 #include <linuxu/syscall-x86_64.h>
@@ -48,6 +49,13 @@
 #error "Unsupported architecture"
 #endif
 
+
+static inline int sys_open(const char *pathname, int flags, mode_t mode)
+{
+       return (int)syscall3(__SC_OPEN, (long)pathname, (long)flags,
+                            (long)mode);
+}
+
 static inline ssize_t sys_read(int fd, const char *buf, size_t len)
 {
        return (ssize_t) syscall3(__SC_READ,
@@ -64,6 +72,17 @@ static inline ssize_t sys_write(int fd, const char *buf, 
size_t len)
                                  (long) (len));
 }
 
+static inline ssize_t sys_close(int fd)
+{
+  return (ssize_t) syscall1(__SC_CLOSE,
+          (long) (fd));
+}
+
+static inline int sys_fstat(int fd, struct k_stat *statbuf)
+{
+       return (int)syscall2(__SC_FSTAT, (long)(fd), (long)(statbuf));
+}
+
 static inline int sys_exit(int status)
 {
        return (int) syscall1(__SC_EXIT,
@@ -81,6 +100,7 @@ static inline int sys_clock_gettime(k_clockid_t clk_id, 
struct k_timespec *tp)
  * Please note that on failure sys_mmap() is returning -errno
  */
 #define MAP_SHARED    (0x01)
+#define MAP_PRIVATE   (0x02)
 #define MAP_ANONYMOUS (0x20)
 #define PROT_NONE     (0x0)
 #define PROT_READ     (0x1)
-- 
2.17.1