Added AVR32 support to uClibc. Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>

4 files changed, 285 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/avr32/sys/elf.h b/libc/sysdeps/linux/avr32/sys/elf.h
new file mode 100644
index 000000000..3dbefae15
--- /dev/null
+++ b/libc/sysdeps/linux/avr32/sys/elf.h
@@ -0,0 +1,26 @@
+/* Copyright (C) 1996, 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.  */
+
+#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+#warning "This header is obsolete; use 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/avr32/sys/procfs.h b/libc/sysdeps/linux/avr32/sys/procfs.h
new file mode 100644
index 000000000..af6dcb0ab
--- /dev/null
+++ b/libc/sysdeps/linux/avr32/sys/procfs.h
@@ -0,0 +1,123 @@
+/* Copyright (C) 1996, 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.  */
+
+#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' 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) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Register set for the floating-point registers.  */
+typedef struct user_fpregs 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/avr32/sys/ucontext.h b/libc/sysdeps/linux/avr32/sys/ucontext.h
new file mode 100644
index 000000000..ba8940cb2
--- /dev/null
+++ b/libc/sysdeps/linux/avr32/sys/ucontext.h
@@ -0,0 +1,90 @@
+/* Copyright (C) 1998, 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.  */
+
+/* Linux/AVR32 ABI compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H        1
+
+#include <features.h>
+#include <signal.h>
+#include <sys/procfs.h>
+#include <bits/sigcontext.h>
+
+typedef int greg_t;
+
+/* Number of general registers.  */
+#define NGREG  16
+
+/* Container for all general registers.  */
+typedef elf_gregset_t gregset_t;
+
+/* 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
+  R8 = 8,
+#define R8     R8
+  R9 = 9,
+#define R9     R9
+  R10 = 10,
+#define R10    R10
+  R11 = 11,
+#define R11    R11
+  R12 = 12,
+#define R12    R12
+  R13 = 13,
+#define R13    R13
+  R14 = 14,
+#define R14    R14
+  R15 = 15
+#define R15    R15
+};
+
+/* Structure to describe FPU registers.  */
+typedef elf_fpregset_t fpregset_t;
+
+/* Context to describe whole processor state.  */
+typedef struct sigcontext mcontext_t;
+
+/* Userlevel context.  */
+typedef struct ucontext
+{
+       unsigned long   uc_flags;
+       struct ucontext *uc_link;
+       stack_t         uc_stack;
+       mcontext_t      uc_mcontext;
+       sigset_t        uc_sigmask;   /* mask last for extensibility */
+} ucontext_t;
+
+#endif /* sys/ucontext.h */
diff --git a/libc/sysdeps/linux/avr32/sys/user.h b/libc/sysdeps/linux/avr32/sys/user.h
new file mode 100644
index 000000000..4fa58480b
--- /dev/null
+++ b/libc/sysdeps/linux/avr32/sys/user.h
@@ -0,0 +1,46 @@
+#ifndef _SYS_USER_H
+#define _SYS_USER_H
+
+struct user_fpregs
+{
+
+};
+
+struct user_regs
+{
+       unsigned long sr;
+       unsigned long pc;
+       unsigned long lr;
+       unsigned long sp;
+       unsigned long r12;
+       unsigned long r11;
+       unsigned long r10;
+       unsigned long r9;
+       unsigned long r8;
+       unsigned long r7;
+       unsigned long r6;
+       unsigned long r5;
+       unsigned long r4;
+       unsigned long r3;
+       unsigned long r2;
+       unsigned long r1;
+       unsigned long r0;
+       unsigned long r12_orig;
+};
+
+struct user
+{
+       struct user_regs        regs;           /* general registers */
+       size_t                  u_tsize;        /* text size (pages) */
+       size_t                  u_dsize;        /* data size (pages) */
+       size_t                  u_ssize;        /* stack size (pages) */
+       unsigned long           start_code;     /* text starting address */
+       unsigned long           start_data;     /* data starting address */
+       unsigned long           start_stack;    /* stack starting address */
+       long int                signal;         /* signal causing core dump */
+       struct user_regs *      u_ar0;          /* help gdb find registers */
+       unsigned long           magic;          /* identifies a core file */
+       char                    u_comm[32];     /* user command name */
+};
+
+#endif /* _SYS_USER_H */