glibc/nptl/Versions
Carlos O'Donell 2827ab990a libc: Extend __libc_freeres framework (Bug 23329).
The __libc_freeres framework does not extend to non-libc.so objects.
This causes problems in general for valgrind and mtrace detecting
unfreed objects in both libdl.so and libpthread.so.  This change is
a pre-requisite to properly moving the malloc hooks out of malloc
since such a move now requires precise accounting of all allocated
data before destructors are run.

This commit adds a proper hook in libc.so.6 for both libdl.so and
for libpthread.so, this ensures that shm-directory.c which uses
freeit () to free memory is called properly.  We also remove the
nptl_freeres hook and fall back to using weak-ref-and-check idiom
for a loaded libpthread.so, thus making this process similar for
all DSOs.

Lastly we follow best practice and use explicit free calls for
both libdl.so and libpthread.so instead of the generic hook process
which has undefined order.

Tested on x86_64 with no regressions.

Signed-off-by: DJ Delorie <dj@redhat.com>
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
2018-06-29 22:39:06 -04:00

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libc {
GLIBC_2.0 {
pthread_attr_destroy; pthread_attr_init;
pthread_attr_getdetachstate; pthread_attr_setdetachstate;
pthread_attr_getinheritsched; pthread_attr_setinheritsched;
pthread_attr_getschedparam; pthread_attr_setschedparam;
pthread_attr_getschedpolicy; pthread_attr_setschedpolicy;
pthread_attr_getscope; pthread_attr_setscope;
pthread_condattr_destroy; pthread_condattr_init;
pthread_cond_broadcast; pthread_cond_destroy;
pthread_cond_init; pthread_cond_signal; pthread_cond_wait;
pthread_cond_timedwait;
pthread_equal; pthread_exit;
pthread_getschedparam; pthread_setschedparam;
pthread_mutex_destroy; pthread_mutex_init;
pthread_mutex_lock; pthread_mutex_unlock;
pthread_self;
pthread_setcancelstate; pthread_setcanceltype;
}
GLIBC_2.1 {
pthread_attr_init;
}
GLIBC_2.3.2 {
__register_atfork;
# Changed pthread_cond_t.
pthread_cond_init; pthread_cond_destroy;
pthread_cond_wait; pthread_cond_signal;
pthread_cond_broadcast; pthread_cond_timedwait;
}
GLIBC_PRIVATE {
__libc_alloca_cutoff;
# Internal libc interface to libpthread
__libc_dl_error_tsd;
__libc_vfork;
__libc_pthread_init;
__libc_current_sigrtmin_private; __libc_current_sigrtmax_private;
__libc_allocate_rtsig_private;
}
}
libpthread {
GLIBC_2.0 {
pthread_create; pthread_join; pthread_self; pthread_equal;
pthread_exit; pthread_detach;
pthread_getschedparam; pthread_setschedparam;
pthread_attr_init; pthread_attr_destroy;
pthread_attr_getdetachstate; pthread_attr_setdetachstate;
pthread_attr_getschedparam; pthread_attr_setschedparam;
pthread_attr_getschedpolicy; pthread_attr_setschedpolicy;
pthread_attr_getinheritsched; pthread_attr_setinheritsched;
pthread_attr_getscope; pthread_attr_setscope;
pthread_mutex_init; pthread_mutex_destroy;
pthread_mutex_lock; pthread_mutex_trylock; pthread_mutex_unlock;
pthread_mutexattr_init; pthread_mutexattr_destroy;
pthread_cond_init; pthread_cond_destroy;
pthread_cond_wait; pthread_cond_timedwait;
pthread_cond_signal; pthread_cond_broadcast;
pthread_condattr_destroy; pthread_condattr_init;
pthread_cancel; pthread_testcancel;
pthread_setcancelstate; pthread_setcanceltype;
pthread_sigmask; pthread_kill;
pthread_key_create; pthread_key_delete;
pthread_getspecific; pthread_setspecific;
pthread_once;
pthread_atfork;
flockfile; funlockfile; ftrylockfile;
# Non-standard POSIX1.x functions.
pthread_mutexattr_getkind_np; pthread_mutexattr_setkind_np;
# Protected names for functions used in other shared objects.
__pthread_mutex_init; __pthread_mutex_destroy;
__pthread_mutex_lock; __pthread_mutex_trylock; __pthread_mutex_unlock;
__pthread_mutexattr_init; __pthread_mutexattr_destroy;
__pthread_mutexattr_settype;
__pthread_key_create; __pthread_getspecific; __pthread_setspecific;
__pthread_once; __pthread_atfork;
_IO_flockfile; _IO_ftrylockfile; _IO_funlockfile;
# Semaphores.
sem_destroy; sem_getvalue; sem_init; sem_post; sem_trywait; sem_wait;
# Special fork handling.
fork; __fork; vfork;
# Cancellation points.
close; __close; fcntl; __fcntl; read; __read; write; __write; accept;
connect; __connect; recv; recvfrom; recvmsg; send; __send; sendmsg; sendto;
fsync; lseek; __lseek; msync; nanosleep; open; __open; pause; tcdrain;
system; wait; __wait; waitpid;
# Hidden entry point (through macros).
_pthread_cleanup_push; _pthread_cleanup_pop;
_pthread_cleanup_push_defer; _pthread_cleanup_pop_restore;
pthread_kill_other_threads_np;
# The error functions.
__errno_location; __h_errno_location;
# Functions which previously have been overwritten.
sigwait; sigaction; __sigaction; _exit; _Exit; longjmp; siglongjmp;
raise;
}
GLIBC_2.1 {
pthread_create;
pthread_attr_init;
pthread_attr_getguardsize; pthread_attr_setguardsize;
pthread_attr_getstackaddr; pthread_attr_setstackaddr;
pthread_attr_getstacksize; pthread_attr_setstacksize;
pthread_mutexattr_gettype; pthread_mutexattr_settype;
pthread_rwlock_init; pthread_rwlock_destroy;
pthread_rwlock_rdlock; pthread_rwlock_wrlock; pthread_rwlock_unlock;
pthread_rwlock_tryrdlock; pthread_rwlock_trywrlock;
pthread_rwlockattr_init; pthread_rwlockattr_destroy;
pthread_rwlockattr_getpshared; pthread_rwlockattr_setpshared;
pthread_rwlockattr_getkind_np; pthread_rwlockattr_setkind_np;
pthread_getconcurrency; pthread_setconcurrency;
# Semaphores.
sem_destroy; sem_getvalue; sem_init; sem_post; sem_trywait; sem_wait;
__libc_current_sigrtmin; __libc_current_sigrtmax;
__libc_allocate_rtsig;
}
GLIBC_2.1.1 {
sem_close; sem_open; sem_unlink;
}
GLIBC_2.1.2 {
__vfork;
}
GLIBC_2.2 {
pthread_mutexattr_getpshared; pthread_mutexattr_setpshared;
pthread_condattr_getpshared; pthread_condattr_setpshared;
# New functions from IEEE Std. 1003.1-2001.
pthread_mutex_timedlock;
pthread_rwlock_timedrdlock; pthread_rwlock_timedwrlock;
pthread_attr_getstack; pthread_attr_setstack;
pthread_spin_destroy; pthread_spin_init; pthread_spin_lock;
pthread_spin_trylock; pthread_spin_unlock;
pthread_barrier_init; pthread_barrier_destroy; pthread_barrier_wait;
pthread_barrierattr_destroy; pthread_barrierattr_init;
pthread_barrierattr_setpshared;
sem_timedwait;
pthread_yield;
pthread_getcpuclockid;
# Cancellation points.
lseek64; open64; __open64; pread; pread64; __pread64; pwrite; pwrite64;
__pwrite64;
# Names used internally.
__pthread_rwlock_init; __pthread_rwlock_destroy;
__pthread_rwlock_rdlock; __pthread_rwlock_tryrdlock;
__pthread_rwlock_wrlock; __pthread_rwlock_trywrlock;
__pthread_rwlock_unlock;
__res_state;
}
GLIBC_2.2.3 {
# Extensions.
pthread_getattr_np;
}
GLIBC_2.2.6 {
# Cancellation wrapper
__nanosleep;
}
GLIBC_2.3.2 {
# Changed pthread_cond_t.
pthread_cond_init; pthread_cond_destroy;
pthread_cond_wait; pthread_cond_timedwait;
pthread_cond_signal; pthread_cond_broadcast;
}
GLIBC_2.3.3 {
# 1003.1-2001 function accidentally left out in 2.2.
pthread_barrierattr_getpshared;
# Unix CS option.
pthread_condattr_getclock; pthread_condattr_setclock;
# Proposed API extensions.
pthread_tryjoin_np; pthread_timedjoin_np;
# New cancellation cleanup handling.
__pthread_register_cancel; __pthread_unregister_cancel;
__pthread_register_cancel_defer; __pthread_unregister_cancel_restore;
__pthread_unwind_next;
__pthread_cleanup_routine;
# affinity interfaces without size parameter
pthread_getaffinity_np; pthread_setaffinity_np;
pthread_attr_getaffinity_np; pthread_attr_setaffinity_np;
}
GLIBC_2.3.4 {
# New affinity interfaces.
pthread_getaffinity_np; pthread_setaffinity_np;
pthread_attr_getaffinity_np; pthread_attr_setaffinity_np;
pthread_setschedprio;
}
GLIBC_2.4 {
pthread_mutexattr_getrobust_np; pthread_mutexattr_setrobust_np;
pthread_mutex_consistent_np;
pthread_mutexattr_getprotocol; pthread_mutexattr_setprotocol;
pthread_mutexattr_getprioceiling; pthread_mutexattr_setprioceiling;
pthread_mutex_getprioceiling; pthread_mutex_setprioceiling;
};
GLIBC_2.11 {
pthread_sigqueue;
};
GLIBC_2.12 {
pthread_mutex_consistent; pthread_mutexattr_getrobust;
pthread_mutexattr_setrobust;
pthread_setname_np; pthread_getname_np;
};
GLIBC_2.18 {
pthread_getattr_default_np;
pthread_setattr_default_np;
}
GLIBC_2.20 {
}
GLIBC_2.22 {
}
GLIBC_PRIVATE {
__pthread_initialize_minimal;
__pthread_clock_gettime; __pthread_clock_settime;
__pthread_unwind; __pthread_get_minstack;
__pthread_barrier_init; __pthread_barrier_wait;
__shm_directory;
__libpthread_freeres;
}
}