Add support for the Analog Devices Blackfin mmuless processor

5 files changed, 485 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/bfin/sys/elf.h b/libc/sysdeps/linux/bfin/sys/elf.h
new file mode 100644
index 000000000..d959cdca1
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/elf.h
@@ -0,0 +1,26 @@
+/* Copyright (C) 1998, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_ELF_H
+#define _SYS_ELF_H	1
+
+#warning "This header is obsolete; use <sys/procfs.h> instead."
+
+#include <sys/procfs.h>
+
+#endif	/* _SYS_ELF_H */
diff --git a/libc/sysdeps/linux/bfin/sys/io.h b/libc/sysdeps/linux/bfin/sys/io.h
new file mode 100644
index 000000000..68639902c
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/io.h
@@ -0,0 +1,48 @@
+/* Copyright (C) 1996, 1998, 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_IO_H
+
+#define	_SYS_IO_H	1
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* If TURN_ON is TRUE, request for permission to do direct i/o on the
+   port numbers in the range [FROM,FROM+NUM-1].  Otherwise, turn I/O
+   permission off for that range.  This call requires root privileges.  */
+extern int ioperm (unsigned long int __from, unsigned long int __num,
+		   int __turn_on) __THROW;
+
+/* Set the I/O privilege level to LEVEL.  If LEVEL is nonzero,
+   permission to access any I/O port is granted.  This call requires
+   root privileges. */
+extern int iopl (int __level) __THROW;
+
+/* The functions that actually perform reads and writes.  */
+extern unsigned char inb (unsigned long int port) __THROW;
+extern unsigned short int inw (unsigned long int port) __THROW;
+extern unsigned long int inl (unsigned long int port) __THROW;
+
+extern void outb (unsigned char value, unsigned long int port) __THROW;
+extern void outw (unsigned short value, unsigned long int port) __THROW;
+extern void outl (unsigned long value, unsigned long int port) __THROW;
+
+__END_DECLS
+
+#endif /* _SYS_IO_H */
diff --git a/libc/sysdeps/linux/bfin/sys/procfs.h b/libc/sysdeps/linux/bfin/sys/procfs.h
new file mode 100644
index 000000000..a656d86b2
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/procfs.h
@@ -0,0 +1,125 @@
+/* Copyright (C) 1996, 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_PROCFS_H
+#define _SYS_PROCFS_H	1
+
+/* This is somewhat modelled after the file of the same name on SVR4
+   systems.  It provides a definition of the core file format for ELF
+   used on Linux.  It doesn't have anything to do with the /proc file
+   system, even though Linux has one.
+
+   Anyway, the whole purpose of this file is for GDB and GDB only.
+   Don't read too much into it.  Don't use it for anything other than
+   GDB unless you know what you are doing.  */
+
+#include <features.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/user.h>
+
+__BEGIN_DECLS
+
+/* Type for a general-purpose register.  */
+typedef unsigned long elf_greg_t;
+
+/* And the whole bunch of them.  We could have used `struct
+   user_regs_struct' directly in the typedef, but tradition says that
+   the register set is an array, which does have some peculiar
+   semantics, so leave it that way.  */
+#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Register set for the floating-point registers.  */
+typedef struct user_bfinfp_struct elf_fpregset_t;
+
+/* Signal info.  */
+struct elf_siginfo
+  {
+    int si_signo;			/* Signal number.  */
+    int si_code;			/* Extra code.  */
+    int si_errno;			/* Errno.  */
+  };
+
+
+/* Definitions to generate Intel SVR4-like core files.  These mostly
+   have the same names as the SVR4 types with "elf_" tacked on the
+   front to prevent clashes with Linux definitions, and the typedef
+   forms have been avoided.  This is mostly like the SVR4 structure,
+   but more Linuxy, with things that Linux does not support and which
+   GDB doesn't really use excluded.  */
+
+struct elf_prstatus
+  {
+    struct elf_siginfo pr_info;		/* Info associated with signal.  */
+    short int pr_cursig;		/* Current signal.  */
+    unsigned long int pr_sigpend;	/* Set of pending signals.  */
+    unsigned long int pr_sighold;	/* Set of held signals.  */
+    __pid_t pr_pid;
+    __pid_t pr_ppid;
+    __pid_t pr_pgrp;
+    __pid_t pr_sid;
+    struct timeval pr_utime;		/* User time.  */
+    struct timeval pr_stime;		/* System time.  */
+    struct timeval pr_cutime;		/* Cumulative user time.  */
+    struct timeval pr_cstime;		/* Cumulative system time.  */
+    elf_gregset_t pr_reg;		/* GP registers.  */
+    int pr_fpvalid;			/* True if math copro being used.  */
+  };
+
+
+#define ELF_PRARGSZ     (80)    /* Number of chars for args.  */
+
+struct elf_prpsinfo
+  {
+    char pr_state;			/* Numeric process state.  */
+    char pr_sname;			/* Char for pr_state.  */
+    char pr_zomb;			/* Zombie.  */
+    char pr_nice;			/* Nice val.  */
+    unsigned long int pr_flag;		/* Flags.  */
+    unsigned short int pr_uid;
+    unsigned short int pr_gid;
+    int pr_pid, pr_ppid, pr_pgrp, pr_sid;
+    /* Lots missing */
+    char pr_fname[16];			/* Filename of executable.  */
+    char pr_psargs[ELF_PRARGSZ];	/* Initial part of arg list.  */
+  };
+
+
+/* The rest of this file provides the types for emulation of the
+   Solaris <proc_service.h> interfaces that should be implemented by
+   users of libthread_db.  */
+
+/* Addresses.  */
+typedef void *psaddr_t;
+
+/* Register sets.  Linux has different names.  */
+typedef elf_gregset_t prgregset_t;
+typedef elf_fpregset_t prfpregset_t;
+
+/* We don't have any differences between processes and threads,
+   therefore have only one PID type.  */
+typedef __pid_t lwpid_t;
+
+/* Process status and info.  In the end we do provide typedefs for them.  */
+typedef struct elf_prstatus prstatus_t;
+typedef struct elf_prpsinfo prpsinfo_t;
+
+__END_DECLS
+
+#endif	/* sys/procfs.h */
diff --git a/libc/sysdeps/linux/bfin/sys/reg.h b/libc/sysdeps/linux/bfin/sys/reg.h
new file mode 100644
index 000000000..4ce6e15aa
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/reg.h
@@ -0,0 +1,133 @@
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_REG_H
+#define _SYS_REG_H	1
+
+/* Index into an array of 4 byte integers returned from ptrace for
+   location of the users' stored general purpose registers. */
+
+enum
+{
+  PT_IPEND = 0,
+#define PT_IPEND PT_IPEND
+  PT_SYSCFG = 4,
+#define PT_SYSCFG PT_SYSCFG
+  PT_SR = 8,
+#define PT_SR PT_SR
+  PT_RETE = 12,
+#define PT_RETE PT_RETE
+  PT_RETN = 16,
+#define PT_RETN PT_RETN
+  PT_RETX = 20,
+#define PT_RETX PT_RETX
+  PT_PC = 24,
+#define PT_PC PT_PC
+  PT_RETS = 28,
+#define PT_RETS PT_RETS
+  PT_ASTAT = 32,
+#define PT_ASTAT PT_ASTAT
+  PT_LB1 = 40,
+#define PT_LB1 PT_LB1
+  PT_LB0 = 44,
+#define PT_LB0 PT_LB0
+  PT_LT1 = 48,
+#define PT_LT1 PT_LT1
+  PT_LT0 = 52,
+#define PT_LT0 PT_LT0
+  PT_LC1 = 56,
+#define PT_LC1 PT_LC1
+  PT_LC0 = 60,
+#define PT_LC0 PT_LC0
+  PT_A1W = 64,
+#define PT_A1W PT_A1W
+  PT_A1X = 68,
+#define PT_A1X PT_A1X
+  PT_A0W = 72,
+#define PT_A0W PT_A0W
+  PT_A0X = 76,
+#define PT_A0X PT_A0X
+  PT_B3 = 80,
+#define PT_B# PT_B3
+  PT_B2 = 84,
+#define PT_B2 PT_B2
+  PT_B1 = 88,
+#define PT_B1 PT_B1
+  PT_B0 = 92,
+#define PT_B0 PT_B0
+  PT_L3 = 96,
+#define PT_L3 PT_L3
+  PT_L2 = 100,
+#define PT_L2 PT_L2
+  PT_L1 = 104,
+#define PT_L1 PT_L1
+  PT_L0 = 108,
+#define PT_L0 PT_L0
+  PT_M3 = 112,
+#define PT_M3 PT_M3
+  PT_M2 = 116,
+#define PT_M2 PT_M2
+  PT_M1 = 120,
+#define PT_M1 PT_M1
+  PT_M0 = 124,
+#define PT_M0 PT_M0
+  PT_I3 = 128,
+#define PT_I3 PT_I3
+  PT_I2 = 132,
+#define PT_I2 PT_I2
+  PT_I1 = 136,
+#define PT_I1 PT_I1
+  PT_I0 = 140,
+#define PT_I0 PT_I0
+  PT_USP = 144,
+#define PT_USP PT_USP
+  PT_FP = 148,
+#define PT_FP PT_FP
+  PT_P5 = 152,
+#define PT_P5 PT_P5
+  PT_P4 = 156,
+#define PT_P4 PT_P4
+  PT_P3 = 160,
+#define PT_P3 PT_P3
+  PT_P2 = 164,
+#define PT_P2 PT_P2
+  PT_P1 = 168,
+#define PT_P1 PT_P1
+  PT_P0 = 172,
+#define PT_P0 PT_P0
+  PT_R7 = 176,
+#define PT_R7 PT_R7
+  PT_R6 = 180,
+#define PT_R6 PT_R6
+  PT_R5 = 184,
+#define PT_R5 PT_R5
+  PT_R4 = 188,
+#define PT_R4 PT_R4
+  PT_R3 = 192,
+#define PT_R3 PT_R3
+  PT_R2 = 196,
+#define PT_R2 PT_R2
+  PT_R1 = 200,
+#define PT_R1 PT_R1
+  PT_R0 = 204,
+#define PT_R0 PT_R0
+  PT_ORIG_R0 = 208,
+#define PT_ORIG_R0 PT_ORIG_R0
+};
+
+#endif	/* _SYS_REG_H */
diff --git a/libc/sysdeps/linux/bfin/sys/ucontext.h b/libc/sysdeps/linux/bfin/sys/ucontext.h
new file mode 100644
index 000000000..ac469daac
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/ucontext.h
@@ -0,0 +1,153 @@
+/* Copyright (C) 1997, 1999, 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* System V/blackfin ABI compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+#include <signal.h>
+
+/* Type for general register.  */
+typedef int greg_t;
+
+/* Number of general registers.  */
+#define NGREG	47
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[NGREG];
+
+/* Number of each register is the `gregset_t' array.  */
+enum
+{
+  R0 = 0,
+#define R0	R0
+  R1 = 1,
+#define R1	R1
+  R2 = 2,
+#define R2	R2
+  R3 = 3,
+#define R3	R3
+  R4 = 4,
+#define R4	R4
+  R5 = 5,
+#define R5	R5
+  R6 = 6,
+#define R6	R6
+  R7 = 7,
+#define R7	R7
+  P0 = 8,
+#define P0	P0
+  P1 = 9,
+#define P1	P1
+  P2 = 10,
+#define P2	P2
+  P3 = 11,
+#define P3	P3
+  P4 = 12,
+#define P4	P4
+  P5 = 13,
+#define P5	P5
+  USP = 14,
+#define USP	USP
+  A0W = 15,
+#define A0W	A0W
+  A1W = 16,
+#define A1W	A1W
+  A0X = 17,
+#define A0X	A0X
+  A1X = 18,
+#define A1X	A1X
+  ASTAT = 19,
+#define ASTAT	ASTAT
+  RETS = 20,
+#define RETS	RETS
+  PC= 21,
+#define PC	PC
+  RETX = 22,
+#define RETX	RETX
+  FP = 23,
+#define FP	FP
+  I0 = 24,
+#define I0	I0
+  I1 = 25,
+#define I1	I1
+  I2 = 26,
+#define I2	I2
+  I3 = 27,
+#define I3	I3
+  M0 = 28,
+#define M0	M0
+  M1 = 29,
+#define M1	M1
+  M2 = 30,
+#define M2	M2
+  M3 = 31,
+#define M3	M3
+  L0 = 32,
+#define L0	L0
+  L1 = 33,
+#define L1	L1
+  L2 = 34,
+#define L2	L2
+  L3 = 35,
+#define L3	L3
+  B_0 = 36,
+#define B_0	B_0
+  B1 = 37,
+#define B1	B1
+  B2 = 38,
+#define B2	B2
+  B3 = 39,
+#define B3	B3
+  LC0 = 40,
+#define LC0	LC0
+  LC1 = 41,
+#define LC1	LC1
+  LT0 = 42,
+#define LT0	LT0
+  LT1 = 43,
+#define LT1	LT1
+  LB0 = 44,
+#define LB0	LB0
+  LB1 = 45,
+#define LB1	LB1
+  SEQSTAT = 46
+#define	SEQSTAT	SEQSTAT
+};
+
+/* Context to describe whole processor state.  */
+typedef struct
+{
+  int version;
+  gregset_t gregs;
+} mcontext_t;
+
+
+/* Userlevel context.  */
+typedef struct ucontext
+{
+  unsigned long int uc_flags;
+  struct ucontext *uc_link;
+  stack_t uc_stack;
+  mcontext_t uc_mcontext;
+  __sigset_t uc_sigmask;
+} ucontext_t;
+
+#endif /* sys/ucontext.h */