Age | Commit message (Collapse) | Author |
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tschwinge/Roger_Whittaker
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tschwinge/Roger_Whittaker
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refs/top-bases/tschwinge/Roger_Whittaker
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tschwinge/Roger_Whittaker
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* sysdeps/mach/hurd/msync.c (msync): Fix syntax.
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tschwinge/Roger_Whittaker
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tschwinge/Roger_Whittaker
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* sysdeps/mach/hurd/msync.c: New file.
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tschwinge/Roger_Whittaker
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refs/top-bases/tschwinge/Roger_Whittaker
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tschwinge/Roger_Whittaker
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refs/top-bases/tschwinge/Roger_Whittaker
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Exec needs that mach_setup_thread does *not* set up TLS since it works on
another task, so we have to split this into mach_setup_tls.
* mach/mach.h (__mach_setup_tls, mach_setup_tls): Add prototypes.
* mach/setup-thread.c (__mach_setup_thread): Move TLS setup to...
(__mach_setup_tls): ... new function.
(mach_setup_tls): New alias.
* hurd/hurdsig.c (_hurdsig_init): Call __mach_setup_tls after
__mach_setup_thread.
* sysdeps/mach/hurd/profil.c (update_waiter): Likewise.
* sysdeps/mach/hurd/setitimer.c (setitimer_locked): Likewise.
* mach/Versions [libc] (mach_setup_tls): Add symbol.
* sysdeps/mach/hurd/i386/libc.abilist (mach_setup_tls): Likewise.
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* sysdeps/mach/hurd/i386/init-first.c (init1): Move ELF hdr and TLS
initialization...
(init): ... before initializing libpthread.
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ld.so symbols to be overriden by libc need to be extern to really get
overriden.
* sysdeps/mach/hurd/not-errno.h: New file.
* sysdeps/mach/hurd/i386/localplt.data: Update accordingly.
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ld.so symbols to be overriden by libc need to be extern to really get
overriden.
* sysdeps/mach/hurd/dl-unistd.h (__access, __brk, __lseek, __read,
__sbrk): Do not set attribute_hidden.
* sysdeps/mach/hurd/i386/ld.abilist: Update accordingly.
* sysdeps/mach/hurd/i386/localplt.data: Update accordingly.
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ld.so symbols to be overriden by libc need to be extern to really get
overriden.
More fixes are needed to avoid the hidden attribute.
* sysdeps/mach/hurd/Versions (libc): Make __access and
__access_noerrno external so they can override the ld symbols.
(ld): Make __access, __read, __sbrk, __strtoul_internal, __write,
__writev, __open64, __access_noerrno extern so they can be overrided.
* sysdeps/mach/hurd/i386/libc.abilist: Update accordingly.
* sysdeps/mach/hurd/i386/ld.abilist: Update accordingly.
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* scripts/check-execstack.awk: Consider `xfail' variable containing a
list
of libraries whose stack executability is expected.
* elf/Makefile ($(objpfx)check-execstack.out): Pass
$(check-execstack-xfail) to check-execstack.awk through `xfail'
variable.
* sysdeps/mach/hurd/i386/Makefile (check-execstack-xfail): Set to ld.so
libc.so libpthread.so.
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* sysdeps/mach/include/mach-shortcuts-hidden.h [!_ISOMAC]: Do not
declare libc hidden prototypes.
* sysdeps/mach/include/mach/mach_traps.h [!_ISOMAC]: Likewise.
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* sysdeps/mach/hurd/pipe2.c: New file, copy from pipe.c. Evolve it to
implement __pipe2.
* sysdeps/mach/hurd/pipe.c (__pipe): Reimplement using __pipe2.
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* sysdeps/mach/hurd/socketpair.c (__socketpair): Handle SOCK_CLOEXEC
and SOCK_NONBLOCK.
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* sysdeps/mach/hurd/socket.c (__socket): Handle SOCK_CLOEXEC and
SOCK_NONBLOCK.
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* sysdeps/mach/hurd/i386/tls.h (_hurd_tls_init): Set multiple_threads
to 1.
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The implementation falls back to renameat if renameat2 is not available
in the kernel (or in the kernel headers) and the flags argument is zero.
Without kernel support, a non-zero argument returns EINVAL, not ENOSYS.
This mirrors what the kernel does for invalid renameat2 flags.
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Different than Linux, hurd does not need the OFD locks fix from
06ab719d30b (since OFD locks are current Linux specific). This in
turn allows hurd to not provide a fcntl compat symbol.
Checked on a i686-gnu with check-abi.
* sysdeps/mach/hurd/i386/libc.abilist [GLIBC_2.28] (fcntl): Remove
symbol.
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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>
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