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author | H.J. Lu <hjl.tools@gmail.com> | 2015-11-07 06:32:30 -0800 |
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committer | H.J. Lu <hjl.tools@gmail.com> | 2015-11-07 06:32:30 -0800 |
commit | f3d18efb8a720121066dc3401e822043beb98cde (patch) | |
tree | 793c9689cfaebbae954d1561332a737e28653c17 /sysdeps/unix/sysv/linux | |
parent | d699ab25d32768aaad899f9ff1e668be62c448d2 (diff) | |
download | glibc-f3d18efb8a720121066dc3401e822043beb98cde.zip glibc-f3d18efb8a720121066dc3401e822043beb98cde.tar.gz glibc-f3d18efb8a720121066dc3401e822043beb98cde.tar.bz2 |
Keep only ELF_RTYPE_CLASS_{PLT|COPY} bits for prelink
prelink runs ld.so with the environment variable LD_TRACE_PRELINKING
set to dump the relocation type class from _dl_debug_bindings. prelink
has the following relocation type classes:
#define RTYPE_CLASS_VALID 8
#define RTYPE_CLASS_PLT (8|1)
#define RTYPE_CLASS_COPY (8|2)
#define RTYPE_CLASS_TLS (8|4)
where ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA has a conflict with
RTYPE_CLASS_TLS.
Since prelink only uses ELF_RTYPE_CLASS_PLT and ELF_RTYPE_CLASS_COPY
bits, we should clear the other bits when the DL_DEBUG_PRELINK bit is
set.
[BZ #19178]
* elf/dl-lookup.c (RTYPE_CLASS_VALID): New.
(RTYPE_CLASS_PLT): Likewise.
(RTYPE_CLASS_COPY): Likewise.
(RTYPE_CLASS_TLS): Likewise.
(_dl_debug_bindings): Use RTYPE_CLASS_TLS and RTYPE_CLASS_VALID
to set relocation type class for DL_DEBUG_PRELINK. Keep only
ELF_RTYPE_CLASS_PLT and ELF_RTYPE_CLASS_COPY bits for
DL_DEBUG_PRELINK.
Diffstat (limited to 'sysdeps/unix/sysv/linux')
0 files changed, 0 insertions, 0 deletions