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author | Paul Pluzhnikov <ppluzhnikov@google.com> | 2014-03-24 10:58:26 -0700 |
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committer | Paul Pluzhnikov <ppluzhnikov@google.com> | 2014-03-24 10:58:26 -0700 |
commit | a42faf59d6d9f82e5293a9ebcc26d9c9e562b12b (patch) | |
tree | a124669e62343e6b318af03c82a86a807773c334 /time | |
parent | 509361270b4b889e991400a70eb87d45304c01cd (diff) | |
download | glibc-a42faf59d6d9f82e5293a9ebcc26d9c9e562b12b.tar.gz glibc-a42faf59d6d9f82e5293a9ebcc26d9c9e562b12b.tar.xz glibc-a42faf59d6d9f82e5293a9ebcc26d9c9e562b12b.zip |
Fix BZ #16634.
An application that erroneously tries to repeatedly dlopen("a.out", ...) may hit assertion failure: Inconsistency detected by ld.so: dl-tls.c: 474: _dl_allocate_tls_init: Assertion `listp != ((void *)0)' failed! dlopen() actually fails with "./a.out: cannot dynamically load executable", but it does so after incrementing dl_tls_max_dtv_idx. Once we run out of TLS_SLOTINFO_SURPLUS (62), we exit with above assertion failure. 2014-03-24 Paul Pluzhnikov <ppluzhnikov@google.com> [BZ #16634] * elf/dl-load.c (open_verify): Add mode parameter. Error early when ET_EXEC and mode does not have __RTLD_OPENEXEC. (open_path): Change from boolean 'secure' to complete flag 'mode' (_dl_map_object): Adjust. * elf/Makefile (tests): Add tst-dlopen-aout. * elf/tst-dlopen-aout.c: New test.
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