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This feature is specifically for the C++ compiler to offload calling
thread_local object destructors on thread program exit, to glibc.
This is to overcome the possible complication of destructors of
thread_local objects getting called after the DSO in which they're
defined is unloaded by the dynamic linker. The DSO is marked as
'unloadable' if it has a constructed thread_local object and marked as
'unloadable' again when all the constructed thread_local objects
defined in it are destroyed.
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There hasn't been a use for lll_unlock_wake_cb since it was
removed globally in 2007-05-29. This patch removes the
function from hppa's lowlevellock.[ch] implementation.
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ARM now supports loading unmarked objects from
the dynamic loader cache. Unmarked objects can
be used with the hard-float or soft-float ABI.
We must support loading unmarked objects during
the transition period from a binutils that does
not mark objects to one that does mark them with
the correct ELF flags.
Signed-off-by: Carlos O'Donell <carlos@redhat.com>
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That convention requires the instruction immediately preceding SYSCALL
to initialize $v0 with the syscall number. Then if a restart triggers,
$v0 will have been clobbered by the syscall interrupted, and needs to be
reinititalized. The kernel will decrement the PC by 4 before switching
back to the user mode so that $v0 has been reloaded before SYSCALL is
executed again. This implies the place $v0 is loaded from must be
preserved across a syscall, e.g. an immediate, static register, stack
slot, etc.
The restriction was lifted with Linux 2.6.36 kernel release and no
special requirements are placed around the SYSCALL instruction anymore,
however we still support older kernel binaries.
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* sysdeps/mips/memmove.c: Remove.
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This uses the same ldd-rewrite.sed hook as other platforms, with
the minor tweak that tilegx uses /lib (64-bit) and /lib32 (32-bit).
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* sysdeps/mips/memcpy.S: Change prefetch hint, reorder partial
loads and stores, set and use MAX_PREFETCH_SIZE.
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[BZ# 14985]
* sysdeps/unix/sysv/linux/sparc/bits/epoll.h (EPOLL_NONBLOCK):
Remove.
* sysdeps/unix/sysv/linux/bits/epoll.h (EPOLL_NONBLOCK):
Likewise.
* sysdeps/unix/sysv/linux/x86/bits/epoll.h (EPOLL_NONBLOCK):
Likewise.
ChangeLog.mips:
[BZ# 14985]
* sysdeps/unix/sysv/linux/mips/bits/epoll.h (EPOLL_NONBLOCK):
* Remove.
ChangeLog.hppa:
[BZ# 14985]
* sysdeps/unix/sysv/linux/hppa/sys/epoll.h (EPOLL_NONBLOCK):
Remove.
ChangeLog.alpha:
[BZ# 14985]
* sysdeps/unix/sysv/linux/alpha/bits/epoll.h (EPOLL_NONBLOCK):
Remove.
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Previously, we would see a bad frame in the gdb backtrace output, e.g.:
(gdb) bt
#0 foo () at foo.c:5
#1 0x000000aaaab68ee8 in start_thread () from /lib/libpthread.so.0
#2 0x000000aaaad01c88 in clone () from /lib/libc.so.6
#3 0x0000000000000000 in ?? ()
With this change the bogus frame #3 is gone and we have the
same output as x86 does for the same program.
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In bdd7898a58bd76ac3b411a4931ff3f9e77eabe6a we added self-definitions
of __isnan and friends in order to indicate specialized architecture
support, and avoid redefinitions within various generic math_private.h.
There is no generic math_private.h that concerns ldbl-128, and while
we provide __isnanl in the alpha math_private.h there's no need to
protect the function against redefinition.
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In bdd7898a58bd76ac3b411a4931ff3f9e77eabe6a we added self-definitions
of __isnan and friends in order to indicate specialized architecture
support, and avoid redefinitions within various generic math_private.h.
There is no generic math_private.h that concerns ldbl-128, and while
we provide __isnanl in the alpha math_private.h there's no need to
protect the function against redefinition.
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