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Conflicts:
ChangeLog
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References to unique symbols from copy relocations can only come
from executables which cannot be unloaded anyway. Optimize the
code to set the unload flag a bit.
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The hash value can be zero, so we need a different test for empty
slots. And unify the way we prevent a DSO from being unloaded.
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The prototype for _dl_higher_prime_number was missing. While at it,
the function is now marked with internal_function.
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It is not necessary/useful anymore to have the content separate
from dl-lookup.c.
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Some symbols have to be identified process-wide by their name. This is
particularly important for some C++ features (e.g., class local static data
and static variables in inline functions). This cannot completely be
implemented with ELF functionality so far. The STB_GNU_UNIQUE binding
helps by ensuring the dynamic linker will always use the same definition for
all symbols with the same name and this binding.
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Mostly tests around not-exported IFUNC functions, IFUNC in statically
linked binaries and PIEs, etc.
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The dl-lookup.c changes are needed for prelink (support in prelink
checked into SVN, tested for both i?86 and x86-64), dl-irel.h just
something I discovered by code inspection.
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Conflicts:
ChangeLog
sysdeps/unix/sysv/linux/i386/sysconf.c
sysdeps/x86_64/cacheinfo.c
version.h
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Little typo could cause additional characters to be printed.
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Add support for the IRELAIVE relocation and IFUNC in static executables.
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Add a text program, built to run on the host, to check all newly
built DSOs for executable stacks and fail if the stack information
is missing or indicates executable stacks.
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* elf/dl-runtime.c (_dl_fixup): Use DL_FIXUP_VALUE_ADDR to access
result of lookup to make call to implement STT_GNU_IFUNC.
(_dl_profile_fixup): Likewise.
Patch by H.J. Lu <hjl.tools@gmail.com>.
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warning.
* elf/sprof.c: Likewise.
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from definition.
* sysdeps/x86_64/dl-machine.h (elf_machine_rela): Don't define
label if it is not used.
* elf/dl-profile.c (_dl_start_profile): Define real-type variant
of gmon_hist_hdr and gmon_hdr structures and use them.
* elf/dl-load.c (open_verify): Add temporary variable to avoid
warning.
* nscd/nscd_helper.c (get_mapping): Avoid casts to avoid warnings.
* sunrpc/clnt_raw.c (clntraw_private_s): Use union in definition
to avoid cast.
* inet/rexec.c (rexec_af): Make sa2 a union to avoid warnings.
* inet/rcmd.c (rcmd_af): Make from a union of the various needed types
to avoid warnings.
(iruserok_af): Use ss_family instead of casts.
* gmon/gmon.c (write_hist): Define real-type variant of
gmon_hist_hdr structure and use it.
(write_gmon): Likewise for gmon_hdr.
* sysdeps/unix/sysv/linux/readv.c: Avoid declaration of replacement
function if we are not going to define it.
* sysdeps/unix/sysv/linux/writev.c: Likewise.
* inet/inet6_option.c (optin_alloc): Add temporary variable to
avoid warning.
* libio/strfile.h (struct _IO_streambuf): Use correct type and
name of VTable element.
* libio/iovsprintf.c: Avoid casts to avoid warnings.
* libio/iovsscanf.c: Likewise.
* libio/vasprintf.c: Likewise.
* libio/vsnprintf.c: Likewise.
* stdio-common/isoc99_vsscanf.c: Likewise.
* stdlib/strfmon_l.c: Likewise.
* debug/vasprintf_chk.c: Likewise.
* debug/vsnprintf_chk.c: Likewise.
* debug/vsprintf_chk.c: Likewise.
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2009-04-19 Ulrich Drepper <drepper@redhat.com>
[BZ #10069]
* elf/dl-open.c (dl_open_worker): We cannot guarantee that we can load
an object that uses static TLS if the TLS modid is higher than the
reserve we always allocate. At least for multi-threaded code.
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* elf/rtld.c (dl_main): Really call _dl_sysdep_start_cleanup after all
calls to _dl_relocate_object.
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are dlopened in statically linked program even for __LM_ID_CALLER.
2009-04-16 Jakub Jelinek <jakub@redhat.com>
* elf/dl-open.c (_dl_open): Bump GL(dl_nns) to 1 if no libraries
are dlopened in statically linked program even for __LM_ID_CALLER.
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* elf/elf.h: Add various missing ARM constants, to match binutils.
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* elf/elf.h (R_SPARC_GLOB_JMP): New macro.
(R_SPARC_GOTDATA_HIX22, R_SPARC_GOTDATA_LOX10): New macros.
(R_SPARC_GOTDATA_OP_HIX22, R_SPARC_GOTDATA_OP_LOX10): Likewise.
(R_SPARC_GOTDATA_OP, R_SPARC_H34): Likewise.
(R_SPARC_SIZE32, R_SPARC_SIZE64): Likewise.
(R_SPARC_GNU_VTINHERIT, R_SPARC_GNU_VTENTRY, R_SPARC_REV32): Likewise.
(R_SPARC_NUM): Update.
From Dave Miller <davem@davemloft.net>.
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those which are used.
* elf/dl-addr.c: Likewise.
* elf/dl-caller.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-iteratephdr.c: Likewise.
* elf/dl-libc.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-support.c: Likewise.
* elf/dl-sym.c: Likewise.
* elf/rtld.c: Likewise.
* sysdeps/generic/ldsodefs.h: Likewise.
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