X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Fshare%2Fgdb%2Fauto-load%2Flib32%2Flibpthread-2.28.so-gdb.py;fp=i686-linux-gnu-4.7%2Fusr%2Fshare%2Fgdb%2Fauto-load%2Flib32%2Flibpthread-2.28.so-gdb.py;h=71688628ffc49108e012b2a69efbed9873dc3529;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git

diff --git a/i686-linux-gnu-4.7/usr/share/gdb/auto-load/lib32/libpthread-2.28.so-gdb.py b/i686-linux-gnu-4.7/usr/share/gdb/auto-load/lib32/libpthread-2.28.so-gdb.py
new file mode 100644
index 0000000..7168862
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/share/gdb/auto-load/lib32/libpthread-2.28.so-gdb.py
@@ -0,0 +1,638 @@
+# Pretty printers for the NPTL lock types.
+#
+# Copyright (C) 2016-2018 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, see
+# <http://www.gnu.org/licenses/>.
+
+"""This file contains the gdb pretty printers for the following types:
+
+    * pthread_mutex_t
+    * pthread_mutexattr_t
+    * pthread_cond_t
+    * pthread_condattr_t
+    * pthread_rwlock_t
+    * pthread_rwlockattr_t
+
+You can check which printers are registered and enabled by issuing the
+'info pretty-printer' gdb command.  Printers should trigger automatically when
+trying to print a variable of one of the types mentioned above.
+"""
+
+from __future__ import print_function
+
+import gdb
+import gdb.printing
+# GENERATED FILE\n
+# Constant definitions for pretty printers.
+# See gen-py-const.awk for details.\n
+PTHREAD_MUTEX_KIND_MASK = 3
+PTHREAD_MUTEX_NORMAL = 0
+PTHREAD_MUTEX_RECURSIVE = 1
+PTHREAD_MUTEX_ERRORCHECK = 2
+PTHREAD_MUTEX_ADAPTIVE_NP = 3
+PTHREAD_MUTEX_DESTROYED = -1
+PTHREAD_MUTEX_UNLOCKED = 0
+PTHREAD_MUTEX_LOCKED_NO_WAITERS = 1
+PTHREAD_MUTEX_INCONSISTENT = 2147483647
+PTHREAD_MUTEX_NOTRECOVERABLE = 2147483646
+FUTEX_OWNER_DIED = 1073741824
+FUTEX_WAITERS = -2147483648
+FUTEX_TID_MASK = 1073741823
+PTHREAD_MUTEX_ROBUST_NORMAL_NP = 16
+PTHREAD_MUTEX_PRIO_INHERIT_NP = 32
+PTHREAD_MUTEX_PRIO_PROTECT_NP = 64
+PTHREAD_MUTEX_PSHARED_BIT = 128
+PTHREAD_MUTEX_PRIO_CEILING_SHIFT = 19
+PTHREAD_MUTEX_PRIO_CEILING_MASK = -524288
+PTHREAD_MUTEXATTR_PROTOCOL_SHIFT = 28
+PTHREAD_MUTEXATTR_PROTOCOL_MASK = 805306368
+PTHREAD_MUTEXATTR_PRIO_CEILING_MASK = 16773120
+PTHREAD_MUTEXATTR_FLAG_ROBUST = 1073741824
+PTHREAD_MUTEXATTR_FLAG_PSHARED = -2147483648
+PTHREAD_MUTEXATTR_FLAG_BITS = -251662336
+PTHREAD_MUTEX_NO_ELISION_NP = 512
+PTHREAD_PRIO_NONE = 0
+PTHREAD_PRIO_INHERIT = 1
+PTHREAD_PRIO_PROTECT = 2
+PTHREAD_COND_SHARED_MASK = 1
+PTHREAD_COND_CLOCK_MONOTONIC_MASK = 2
+COND_CLOCK_BITS = 1
+PTHREAD_COND_WREFS_SHIFT = 3
+PTHREAD_RWLOCK_PREFER_READER_NP = 0
+PTHREAD_RWLOCK_PREFER_WRITER_NP = 1
+PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP = 2
+PTHREAD_RWLOCK_WRPHASE = 1
+PTHREAD_RWLOCK_WRLOCKED = 2
+PTHREAD_RWLOCK_READER_SHIFT = 3
+PTHREAD_PROCESS_PRIVATE = 0
+PTHREAD_PROCESS_SHARED = 1
+
+
+MUTEX_TYPES = {
+    PTHREAD_MUTEX_NORMAL: ('Type', 'Normal'),
+    PTHREAD_MUTEX_RECURSIVE: ('Type', 'Recursive'),
+    PTHREAD_MUTEX_ERRORCHECK: ('Type', 'Error check'),
+    PTHREAD_MUTEX_ADAPTIVE_NP: ('Type', 'Adaptive')
+}
+
+class MutexPrinter(object):
+    """Pretty printer for pthread_mutex_t."""
+
+    def __init__(self, mutex):
+        """Initialize the printer's internal data structures.
+
+        Args:
+            mutex: A gdb.value representing a pthread_mutex_t.
+        """
+
+        data = mutex['__data']
+        self.lock = data['__lock']
+        self.count = data['__count']
+        self.owner = data['__owner']
+        self.kind = data['__kind']
+        self.values = []
+        self.read_values()
+
+    def to_string(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_mutex_t.
+        """
+
+        return 'pthread_mutex_t'
+
+    def children(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_mutex_t.
+        """
+
+        return self.values
+
+    def read_values(self):
+        """Read the mutex's info and store it in self.values.
+
+        The data contained in self.values will be returned by the Iterator
+        created in self.children.
+        """
+
+        self.read_type()
+        self.read_status()
+        self.read_attributes()
+        self.read_misc_info()
+
+    def read_type(self):
+        """Read the mutex's type."""
+
+        mutex_type = self.kind & PTHREAD_MUTEX_KIND_MASK
+
+        # mutex_type must be casted to int because it's a gdb.Value
+        self.values.append(MUTEX_TYPES[int(mutex_type)])
+
+    def read_status(self):
+        """Read the mutex's status.
+
+        Architectures that support lock elision might not record the mutex owner
+        ID in the __owner field.  In that case, the owner will be reported as
+        "Unknown".
+        """
+
+        if self.kind == PTHREAD_MUTEX_DESTROYED:
+            self.values.append(('Status', 'Destroyed'))
+        elif self.kind & PTHREAD_MUTEX_ROBUST_NORMAL_NP:
+            self.read_status_robust()
+        else:
+            self.read_status_no_robust()
+
+    def read_status_robust(self):
+        """Read the status of a robust mutex.
+
+        In glibc robust mutexes are implemented in a very different way than
+        non-robust ones.  This method reads their locking status,
+        whether it may have waiters, their registered owner (if any),
+        whether the owner is alive or not, and the status of the state
+        they're protecting.
+        """
+
+        if self.lock == PTHREAD_MUTEX_UNLOCKED:
+            self.values.append(('Status', 'Not acquired'))
+        else:
+            if self.lock & FUTEX_WAITERS:
+                self.values.append(('Status',
+                                    'Acquired, possibly with waiters'))
+            else:
+                self.values.append(('Status',
+                                    'Acquired, possibly with no waiters'))
+
+            if self.lock & FUTEX_OWNER_DIED:
+                self.values.append(('Owner ID', '%d (dead)' % self.owner))
+            else:
+                self.values.append(('Owner ID', self.lock & FUTEX_TID_MASK))
+
+        if self.owner == PTHREAD_MUTEX_INCONSISTENT:
+            self.values.append(('State protected by this mutex',
+                                'Inconsistent'))
+        elif self.owner == PTHREAD_MUTEX_NOTRECOVERABLE:
+            self.values.append(('State protected by this mutex',
+                                'Not recoverable'))
+
+    def read_status_no_robust(self):
+        """Read the status of a non-robust mutex.
+
+        Read info on whether the mutex is acquired, if it may have waiters
+        and its owner (if any).
+        """
+
+        lock_value = self.lock
+
+        if self.kind & PTHREAD_MUTEX_PRIO_PROTECT_NP:
+            lock_value &= ~(PTHREAD_MUTEX_PRIO_CEILING_MASK)
+
+        if lock_value == PTHREAD_MUTEX_UNLOCKED:
+            self.values.append(('Status', 'Not acquired'))
+        else:
+            if self.kind & PTHREAD_MUTEX_PRIO_INHERIT_NP:
+                waiters = self.lock & FUTEX_WAITERS
+                owner = self.lock & FUTEX_TID_MASK
+            else:
+                # Mutex protocol is PP or none
+                waiters = (self.lock != PTHREAD_MUTEX_LOCKED_NO_WAITERS)
+                owner = self.owner
+
+            if waiters:
+                self.values.append(('Status',
+                                    'Acquired, possibly with waiters'))
+            else:
+                self.values.append(('Status',
+                                    'Acquired, possibly with no waiters'))
+
+            if self.owner != 0:
+                self.values.append(('Owner ID', owner))
+            else:
+                # Owner isn't recorded, probably because lock elision
+                # is enabled.
+                self.values.append(('Owner ID', 'Unknown'))
+
+    def read_attributes(self):
+        """Read the mutex's attributes."""
+
+        if self.kind != PTHREAD_MUTEX_DESTROYED:
+            if self.kind & PTHREAD_MUTEX_ROBUST_NORMAL_NP:
+                self.values.append(('Robust', 'Yes'))
+            else:
+                self.values.append(('Robust', 'No'))
+
+            # In glibc, robust mutexes always have their pshared flag set to
+            # 'shared' regardless of what the pshared flag of their
+            # mutexattr was.  Therefore a robust mutex will act as shared
+            # even if it was initialized with a 'private' mutexattr.
+            if self.kind & PTHREAD_MUTEX_PSHARED_BIT:
+                self.values.append(('Shared', 'Yes'))
+            else:
+                self.values.append(('Shared', 'No'))
+
+            if self.kind & PTHREAD_MUTEX_PRIO_INHERIT_NP:
+                self.values.append(('Protocol', 'Priority inherit'))
+            elif self.kind & PTHREAD_MUTEX_PRIO_PROTECT_NP:
+                prio_ceiling = ((self.lock & PTHREAD_MUTEX_PRIO_CEILING_MASK)
+                                >> PTHREAD_MUTEX_PRIO_CEILING_SHIFT)
+
+                self.values.append(('Protocol', 'Priority protect'))
+                self.values.append(('Priority ceiling', prio_ceiling))
+            else:
+                # PTHREAD_PRIO_NONE
+                self.values.append(('Protocol', 'None'))
+
+    def read_misc_info(self):
+        """Read miscellaneous info on the mutex.
+
+        For now this reads the number of times a recursive mutex was acquired
+        by the same thread.
+        """
+
+        mutex_type = self.kind & PTHREAD_MUTEX_KIND_MASK
+
+        if mutex_type == PTHREAD_MUTEX_RECURSIVE and self.count > 1:
+            self.values.append(('Times acquired by the owner', self.count))
+
+class MutexAttributesPrinter(object):
+    """Pretty printer for pthread_mutexattr_t.
+
+    In the NPTL this is a type that's always casted to struct pthread_mutexattr
+    which has a single 'mutexkind' field containing the actual attributes.
+    """
+
+    def __init__(self, mutexattr):
+        """Initialize the printer's internal data structures.
+
+        Args:
+            mutexattr: A gdb.value representing a pthread_mutexattr_t.
+        """
+
+        self.values = []
+
+        try:
+            mutexattr_struct = gdb.lookup_type('struct pthread_mutexattr')
+            self.mutexattr = mutexattr.cast(mutexattr_struct)['mutexkind']
+            self.read_values()
+        except gdb.error:
+            # libpthread doesn't have debug symbols, thus we can't find the
+            # real struct type.  Just print the union members.
+            self.values.append(('__size', mutexattr['__size']))
+            self.values.append(('__align', mutexattr['__align']))
+
+    def to_string(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_mutexattr_t.
+        """
+
+        return 'pthread_mutexattr_t'
+
+    def children(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_mutexattr_t.
+        """
+
+        return self.values
+
+    def read_values(self):
+        """Read the mutexattr's info and store it in self.values.
+
+        The data contained in self.values will be returned by the Iterator
+        created in self.children.
+        """
+
+        mutexattr_type = (self.mutexattr
+                          & ~PTHREAD_MUTEXATTR_FLAG_BITS
+                          & ~PTHREAD_MUTEX_NO_ELISION_NP)
+
+        # mutexattr_type must be casted to int because it's a gdb.Value
+        self.values.append(MUTEX_TYPES[int(mutexattr_type)])
+
+        if self.mutexattr & PTHREAD_MUTEXATTR_FLAG_ROBUST:
+            self.values.append(('Robust', 'Yes'))
+        else:
+            self.values.append(('Robust', 'No'))
+
+        if self.mutexattr & PTHREAD_MUTEXATTR_FLAG_PSHARED:
+            self.values.append(('Shared', 'Yes'))
+        else:
+            self.values.append(('Shared', 'No'))
+
+        protocol = ((self.mutexattr & PTHREAD_MUTEXATTR_PROTOCOL_MASK) >>
+                    PTHREAD_MUTEXATTR_PROTOCOL_SHIFT)
+
+        if protocol == PTHREAD_PRIO_NONE:
+            self.values.append(('Protocol', 'None'))
+        elif protocol == PTHREAD_PRIO_INHERIT:
+            self.values.append(('Protocol', 'Priority inherit'))
+        elif protocol == PTHREAD_PRIO_PROTECT:
+            self.values.append(('Protocol', 'Priority protect'))
+
+class ConditionVariablePrinter(object):
+    """Pretty printer for pthread_cond_t."""
+
+    def __init__(self, cond):
+        """Initialize the printer's internal data structures.
+
+        Args:
+            cond: A gdb.value representing a pthread_cond_t.
+        """
+
+        data = cond['__data']
+        self.wrefs = data['__wrefs']
+        self.values = []
+
+        self.read_values()
+
+    def to_string(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_cond_t.
+        """
+
+        return 'pthread_cond_t'
+
+    def children(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_cond_t.
+        """
+
+        return self.values
+
+    def read_values(self):
+        """Read the condvar's info and store it in self.values.
+
+        The data contained in self.values will be returned by the Iterator
+        created in self.children.
+        """
+
+        self.read_status()
+        self.read_attributes()
+
+    def read_status(self):
+        """Read the status of the condvar.
+
+        This method reads whether the condvar is destroyed and how many threads
+        are waiting for it.
+        """
+
+        self.values.append(('Threads known to still execute a wait function',
+                            self.wrefs >> PTHREAD_COND_WREFS_SHIFT))
+
+    def read_attributes(self):
+        """Read the condvar's attributes."""
+
+        if (self.wrefs & PTHREAD_COND_CLOCK_MONOTONIC_MASK) != 0:
+            self.values.append(('Clock ID', 'CLOCK_MONOTONIC'))
+        else:
+            self.values.append(('Clock ID', 'CLOCK_REALTIME'))
+
+        if (self.wrefs & PTHREAD_COND_SHARED_MASK) != 0:
+            self.values.append(('Shared', 'Yes'))
+        else:
+            self.values.append(('Shared', 'No'))
+
+class ConditionVariableAttributesPrinter(object):
+    """Pretty printer for pthread_condattr_t.
+
+    In the NPTL this is a type that's always casted to struct pthread_condattr,
+    which has a single 'value' field containing the actual attributes.
+    """
+
+    def __init__(self, condattr):
+        """Initialize the printer's internal data structures.
+
+        Args:
+            condattr: A gdb.value representing a pthread_condattr_t.
+        """
+
+        self.values = []
+
+        try:
+            condattr_struct = gdb.lookup_type('struct pthread_condattr')
+            self.condattr = condattr.cast(condattr_struct)['value']
+            self.read_values()
+        except gdb.error:
+            # libpthread doesn't have debug symbols, thus we can't find the
+            # real struct type.  Just print the union members.
+            self.values.append(('__size', condattr['__size']))
+            self.values.append(('__align', condattr['__align']))
+
+    def to_string(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_condattr_t.
+        """
+
+        return 'pthread_condattr_t'
+
+    def children(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_condattr_t.
+        """
+
+        return self.values
+
+    def read_values(self):
+        """Read the condattr's info and store it in self.values.
+
+        The data contained in self.values will be returned by the Iterator
+        created in self.children.
+        """
+
+        clock_id = (self.condattr >> 1) & ((1 << COND_CLOCK_BITS) - 1)
+
+        if clock_id != 0:
+            self.values.append(('Clock ID', 'CLOCK_MONOTONIC'))
+        else:
+            self.values.append(('Clock ID', 'CLOCK_REALTIME'))
+
+        if self.condattr & 1:
+            self.values.append(('Shared', 'Yes'))
+        else:
+            self.values.append(('Shared', 'No'))
+
+class RWLockPrinter(object):
+    """Pretty printer for pthread_rwlock_t."""
+
+    def __init__(self, rwlock):
+        """Initialize the printer's internal data structures.
+
+        Args:
+            rwlock: A gdb.value representing a pthread_rwlock_t.
+        """
+
+        data = rwlock['__data']
+        self.readers = data['__readers']
+        self.cur_writer = data['__cur_writer']
+        self.shared = data['__shared']
+        self.flags = data['__flags']
+        self.values = []
+        self.read_values()
+
+    def to_string(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_rwlock_t.
+        """
+
+        return 'pthread_rwlock_t'
+
+    def children(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_rwlock_t.
+        """
+
+        return self.values
+
+    def read_values(self):
+        """Read the rwlock's info and store it in self.values.
+
+        The data contained in self.values will be returned by the Iterator
+        created in self.children.
+        """
+
+        self.read_status()
+        self.read_attributes()
+
+    def read_status(self):
+        """Read the status of the rwlock."""
+
+        if self.readers & PTHREAD_RWLOCK_WRPHASE:
+            if self.readers & PTHREAD_RWLOCK_WRLOCKED:
+                self.values.append(('Status', 'Acquired (Write)'))
+                self.values.append(('Writer ID', self.cur_writer))
+            else:
+                self.values.append(('Status', 'Not acquired'))
+        else:
+            r = self.readers >> PTHREAD_RWLOCK_READER_SHIFT
+            if r > 0:
+                self.values.append(('Status', 'Acquired (Read)'))
+                self.values.append(('Readers', r))
+            else:
+                self.values.append(('Status', 'Not acquired'))
+
+    def read_attributes(self):
+        """Read the attributes of the rwlock."""
+
+        if self.shared:
+            self.values.append(('Shared', 'Yes'))
+        else:
+            self.values.append(('Shared', 'No'))
+
+        if self.flags == PTHREAD_RWLOCK_PREFER_READER_NP:
+            self.values.append(('Prefers', 'Readers'))
+        elif self.flags == PTHREAD_RWLOCK_PREFER_WRITER_NP:
+            self.values.append(('Prefers', 'Writers'))
+        else:
+            self.values.append(('Prefers', 'Writers no recursive readers'))
+
+class RWLockAttributesPrinter(object):
+    """Pretty printer for pthread_rwlockattr_t.
+
+    In the NPTL this is a type that's always casted to
+    struct pthread_rwlockattr, which has two fields ('lockkind' and 'pshared')
+    containing the actual attributes.
+    """
+
+    def __init__(self, rwlockattr):
+        """Initialize the printer's internal data structures.
+
+        Args:
+            rwlockattr: A gdb.value representing a pthread_rwlockattr_t.
+        """
+
+        self.values = []
+
+        try:
+            rwlockattr_struct = gdb.lookup_type('struct pthread_rwlockattr')
+            self.rwlockattr = rwlockattr.cast(rwlockattr_struct)
+            self.read_values()
+        except gdb.error:
+            # libpthread doesn't have debug symbols, thus we can't find the
+            # real struct type.  Just print the union members.
+            self.values.append(('__size', rwlockattr['__size']))
+            self.values.append(('__align', rwlockattr['__align']))
+
+    def to_string(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_rwlockattr_t.
+        """
+
+        return 'pthread_rwlockattr_t'
+
+    def children(self):
+        """gdb API function.
+
+        This is called from gdb when we try to print a pthread_rwlockattr_t.
+        """
+
+        return self.values
+
+    def read_values(self):
+        """Read the rwlockattr's info and store it in self.values.
+
+        The data contained in self.values will be returned by the Iterator
+        created in self.children.
+        """
+
+        rwlock_type = self.rwlockattr['lockkind']
+        shared = self.rwlockattr['pshared']
+
+        if shared == PTHREAD_PROCESS_SHARED:
+            self.values.append(('Shared', 'Yes'))
+        else:
+            # PTHREAD_PROCESS_PRIVATE
+            self.values.append(('Shared', 'No'))
+
+        if rwlock_type == PTHREAD_RWLOCK_PREFER_READER_NP:
+            self.values.append(('Prefers', 'Readers'))
+        elif rwlock_type == PTHREAD_RWLOCK_PREFER_WRITER_NP:
+            self.values.append(('Prefers', 'Writers'))
+        else:
+            self.values.append(('Prefers', 'Writers no recursive readers'))
+
+def register(objfile):
+    """Register the pretty printers within the given objfile."""
+
+    printer = gdb.printing.RegexpCollectionPrettyPrinter('glibc-pthread-locks')
+
+    printer.add_printer('pthread_mutex_t', r'^pthread_mutex_t$',
+                        MutexPrinter)
+    printer.add_printer('pthread_mutexattr_t', r'^pthread_mutexattr_t$',
+                        MutexAttributesPrinter)
+    printer.add_printer('pthread_cond_t', r'^pthread_cond_t$',
+                        ConditionVariablePrinter)
+    printer.add_printer('pthread_condattr_t', r'^pthread_condattr_t$',
+                        ConditionVariableAttributesPrinter)
+    printer.add_printer('pthread_rwlock_t', r'^pthread_rwlock_t$',
+                        RWLockPrinter)
+    printer.add_printer('pthread_rwlockattr_t', r'^pthread_rwlockattr_t$',
+                        RWLockAttributesPrinter)
+
+    if objfile == None:
+        objfile = gdb
+
+    gdb.printing.register_pretty_printer(objfile, printer)
+
+register(gdb.current_objfile())