compiled newlib, need to hook up the system calls

sysroot/usr/include/sys/stat.h

@@ -0,0 +1,50 @@
+#ifndef _SYS_STAT_H
+#define _SYS_STAT_H
+
+#include <stdint.h>
+
+// Basic POSIX types for i686 execution
+typedef uint32_t dev_t;
+typedef uint32_t ino_t;
+typedef uint32_t mode_t;
+typedef uint32_t nlink_t;
+typedef uint32_t uid_t;
+typedef uint32_t gid_t;
+typedef int32_t  off_t;
+typedef int32_t  time_t;
+
+// The stat layout expected by standard C files
+struct stat {
+    dev_t     st_dev;     /* ID of device containing file */
+    ino_t     st_ino;     /* Inode number */
+    mode_t    st_mode;    /* File type and mode flags */
+    nlink_t   st_nlink;   /* Number of hard links */
+    uid_t     st_uid;     /* User ID of owner */
+    gid_t     st_gid;     /* Group ID of owner */
+    dev_t     st_rdev;    /* Device ID (if special file) */
+    off_t     st_size;    /* Total size, in bytes */
+    time_t    st_atime;   /* Time of last access */
+    time_t    st_mtime;   /* Time of last modification */
+    time_t    st_ctime;   /* Time of last status change */
+};
+
+// Traditional POSIX file permission/type bitmasks
+#define S_IFMT   0170000  /* Bitmask for the file type bit fields */
+#define S_IFSOCK 0140000  /* Socket */
+#define S_IFLNK  0120000  /* Symbolic link */
+#define S_IFREG  0100000  /* Regular file */
+#define S_IFBLK  0060000  /* Block device */
+#define S_IFDIR  0040000  /* Directory */
+#define S_IFCHR  0020000  /* Character device */
+#define S_IFIFO  0010000  /* FIFO */
+
+#define S_IRUSR  00400  /* Owner has read permission */
+#define S_IWUSR  00200  /* Owner has write permission */
+#define S_IXUSR  00100  /* Owner has execute permission */
+#define S_IRWXU  00700  /* Owner has read, write, and execute permission */
+
+// Helper check macros commonly used in PDCLib
+#define S_ISREG(m)  (((m) & S_IFMT) == S_IFREG)
+#define S_ISDIR(m)  (((m) & S_IFMT) == S_IFDIR)
+
+#endif /* _SYS_STAT_H */

sysroot/usr/include/sys/time.h

@@ -0,0 +1,21 @@
+#ifndef _SYS_TIME_H
+#define _SYS_TIME_H
+
+#include <sys/types.h>
+
+// Represents an exact elapsed time signature
+struct timeval {
+    time_t      tv_sec;     /* Seconds since Unix Epoch */
+    int32_t     tv_usec;    /* Microseconds component */
+};
+
+// Represents traditional timezone offsets (largely obsolete but required)
+struct timezone {
+    int tz_minuteswest;     /* Minutes west of Greenwich */
+    int tz_dsttime;         /* Type of DST correction */
+};
+
+/* Prototype for time fetching system operation */
+int gettimeofday(struct timeval *restrict tv, void *restrict tz);
+
+#endif /* _SYS_TIME_H */

sysroot/usr/include/sys/times.h

@@ -0,0 +1,17 @@
+#ifndef _SYS_TIMES_H
+#define _SYS_TIMES_H
+
+#include <sys/types.h>
+
+/* Structure describing CPU time used by a process and its children */
+struct tms {
+    clock_t tms_utime;  /* User CPU time */
+    clock_t tms_stime;  /* System CPU time */
+    clock_t tms_cutime; /* User CPU time of dead children */
+    clock_t tms_cstime; /* System CPU time of dead children */
+};
+
+/* Function prototype for timing system call */
+clock_t times(struct tms *buffer);
+
+#endif /* _SYS_TIMES_H */

sysroot/usr/include/sys/types.h

@@ -0,0 +1,29 @@
+#ifndef _SYS_TYPES_H
+#define _SYS_TYPES_H
+
+#include <stdint.h>
+
+// Standard signed and unsigned size primitives
+typedef int32_t  ssize_t;
+typedef uint32_t size_t;
+
+// Process and Thread IDs
+typedef int32_t  pid_t;
+typedef int32_t  id_t;
+
+// File system block and reference markers
+typedef int32_t  blkcnt_t;
+typedef int32_t  blksize_t;
+typedef uint32_t dev_t;
+typedef uint32_t gid_t;
+typedef uint32_t ino_t;
+typedef uint32_t mode_t;
+typedef uint32_t nlink_t;
+typedef int32_t  off_t;
+typedef uint32_t uid_t;
+
+// Clock and Timing fields
+typedef int32_t  time_t;
+typedef int32_t  clock_t;
+
+#endif /* _SYS_TYPES_H */