import user.h from the kernel as it is no longer exported by the kernel

diff --git a/libc/sysdeps/linux/bfin/sys/user.h b/libc/sysdeps/linux/bfin/sys/user.h
new file mode 100644 (file)
index 0000000..558abd6
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/user.h
@@ -0,0 +1,57 @@
+#ifndef _SYS_USER_H
+#define _SYS_USER_H
+
+struct user_bfinfp_struct {
+};
+
+/* This is the old layout of "struct pt_regs" as of Linux 1.x, and
+   is still the layout used by user (the new pt_regs doesn't have
+   all registers). */
+struct user_regs_struct {
+       long r0, r1, r2, r3, r4, r5, r6, r7;
+       long p0, p1, p2, p3, p4, p5, usp, fp;
+       long i0, i1, i2, i3;
+       long l0, l1, l2, l3;
+       long b0, b1, b2, b3;
+       long m0, m1, m2, m3;
+       long a0w, a1w;
+       long a0x, a1x;
+       unsigned long rets;
+       unsigned long astat;
+       unsigned long pc;
+       unsigned long orig_p0;
+};
+
+/* When the kernel dumps core, it starts by dumping the user struct -
+   this will be used by gdb to figure out where the data and stack segments
+   are within the file, and what virtual addresses to use. */
+
+struct user {
+/* We start with the registers, to mimic the way that "memory" is returned
+   from the ptrace(3,...) function.  */
+
+       struct user_regs_struct regs;   /* Where the registers are actually stored */
+
+/* The rest of this junk is to help gdb figure out what goes where */
+       unsigned long int u_tsize;      /* Text segment size (pages). */
+       unsigned long int u_dsize;      /* Data segment size (pages). */
+       unsigned long int u_ssize;      /* Stack segment size (pages). */
+       unsigned long start_code;       /* Starting virtual address of text. */
+       unsigned long start_stack;      /* Starting virtual address of stack area.
+                                          This is actually the bottom of the stack,
+                                          the top of the stack is always found in the
+                                          esp register.  */
+       long int signal;        /* Signal that caused the core dump. */
+       int reserved;           /* No longer used */
+       unsigned long u_ar0;
+       /* Used by gdb to help find the values for */
+       /* the registers. */
+       unsigned long magic;    /* To uniquely identify a core file */
+       char u_comm[32];        /* User command that was responsible */
+};
+#define NBPG PAGE_SIZE
+#define UPAGES 1
+#define HOST_TEXT_START_ADDR (u.start_code)
+#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
+
+#endif