--- /dev/null
+/* Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002 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>
+
+
+/* Type for a general-purpose register. */
+#ifndef ELF_GREG_T
+#define ELF_GREG_T
+typedef unsigned long elf_greg_t;
+#endif
+
+/* This is exactly the same as `struct pt_regs' in the kernel. */
+struct elf_gregset
+{
+ elf_greg_t gpr[32]; /* General purpose registers. */
+
+ elf_greg_t pc; /* program counter */
+ elf_greg_t psw; /* program status word */
+ elf_greg_t ear; /* Exception address register */
+ elf_greg_t esr; /* Excep[tion Status Register */
+ elf_greg_t fsr; /* FPU Status register */
+
+ elf_greg_t kernel_mode; /* 1 if in `kernel mode', 0 if user mode */
+ elf_greg_t single_step; /* 1 if in single step mode */
+};
+
+#ifndef ELF_NGREG
+#define ELF_NGREG (sizeof (struct elf_gregset) / sizeof(elf_greg_t))
+#endif
+
+#ifndef ELF_GREGSET_T
+#define ELF_GREGSET_T
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+#endif
+
+/* Register set for the floating-point registers. */
+#ifndef ELF_FPREGSET_T
+#define ELF_FPREGSET_T
+typedef elf_greg_t elf_fpregset_t;
+#endif
+
+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.
+ * Fields present but not used are marked with "XXX".
+ */
+struct elf_prstatus
+{
+ struct elf_siginfo pr_info; /* Info associated with signal */
+ short pr_cursig; /* Current signal */
+ unsigned long pr_sigpend; /* Set of pending signals */
+ unsigned long pr_sighold; /* Set of held signals */
+ __kernel_pid_t pr_pid;
+ __kernel_pid_t pr_ppid;
+ __kernel_pid_t pr_pgrp;
+ __kernel_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 co-processor 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 pr_flag; /* flags */
+ __kernel_uid_t pr_uid;
+ __kernel_gid_t pr_gid;
+ __kernel_pid_t 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 __kernel_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;
+
+
+#endif /* sys/procfs.h */
--- /dev/null
+/*
+ * sysdeps/microblaze/pt-machine.h -- microblaze-specific pthread definitions
+ *
+ * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au>
+ * Copyright (C) 2002 NEC Electronics Corporation
+ * Copyright (C) 2002 Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License. See the file COPYING.LIB in the main
+ * directory of this archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#ifndef _PT_MACHINE_H
+#define _PT_MACHINE_H 1
+
+#include <features.h>
+
+#ifndef PT_EI
+# define PT_EI extern inline
+#endif
+
+extern long int testandset (int *spinlock);
+extern int __compare_and_swap (long *ptr, long old, long new);
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME __stack_pointer
+register char *__stack_pointer __asm__ ("r1");
+
+#define HAS_COMPARE_AND_SWAP
+#define HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS
+#define IMPLEMENT_TAS_WITH_CAS
+
+/* Atomically: If *PTR == OLD, set *PTR to NEW and return true,
+ otherwise do nothing and return false. */
+PT_EI int __compare_and_swap (long *ptr, long old, long new)
+{
+ unsigned long psw;
+
+ /* disable interrupts */
+ /* This is ugly ugly ugly! */
+ __asm__ __volatile__ ("mfs %0, rmsr;"
+ "andi r3, %0, ~2;"
+ "mts rmsr, r3;"
+ : "=&r" (psw)
+ :
+ : "r3");
+
+ if (likely (*ptr == old))
+ {
+ *ptr = new;
+ __asm__ __volatile__ ("mts rmsr, %0;" :: "r" (psw)); /* re-enable */
+ return 1;
+ }
+ else
+ {
+ __asm__ __volatile__ ("mts rmsr, %0;" :: "r" (psw)); /* re-enable */
+ return 0;
+ }
+}
+
+/* like above's __compare_and_swap() but it first syncs the memory
+ (This is also the difference between both functions in e.g.
+ ../powerpc/pt-machine.h)
+ Doing this additional sync fixes a hang of __pthread_alt_unlock()
+ (Falk Brettschneider <fbrettschneider@baumeroptronic.de>) */
+PT_EI int
+__compare_and_swap_with_release_semantics (long *p,
+ long oldval, long newval)
+{
+ __asm__ __volatile__ ("" : : : "memory"); /*MEMORY_BARRIER ();*/
+ return __compare_and_swap (p, oldval, newval);
+}
+
+
+#ifndef IMPLEMENT_TAS_WITH_CAS
+/* Spinlock implementation; required. */
+PT_EI long int testandset (int *spinlock)
+{
+ unsigned psw;
+
+ /* disable interrupts */
+ __asm__ __volatile__ ("mfs %0, rmsr;"
+ "andi r3, %0, ~2;"
+ "mts rmsr, r3;"
+ : "=&r" (psw)
+ :
+ : "r3");
+
+ if (*spinlock)
+ {
+ /* Enable ints */
+ __asm__ __volatile__ ("mts rmsr, %0;" :: "r" (psw));
+ return 1;
+ } else {
+ *spinlock=1;
+ /* Enable ints */
+ __asm__ __volatile__ ("mts rmsr, %0;" :: "r" (psw));
+ return 0;
+ }
+}
+
+#endif
+#endif /* pt-machine.h */
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