Carlos O'Donell 2ec0e7eade Revert Intel CET changes to __jmp_buf_tag (Bug 22743) ... In commit cba595c350 and commit f81ddabffd, ABI compatibility with applications was broken by increasing the size of the on-stack allocated __pthread_unwind_buf_t beyond the oringal size. Applications only have the origianl space available for __pthread_unwind_register, and __pthread_unwind_next to use, any increase in the size of __pthread_unwind_buf_t causes these functions to write beyond the original structure into other on-stack variables leading to segmentation faults in common applications like vlc. The only workaround is to version those functions which operate on the old sized objects, but this must happen in glibc 2.28. Thank you to Andrew Senkevich, H.J. Lu, and Aurelien Jarno, for submitting reports and tracking the issue down. The commit reverts the above mentioned commits and testing on x86_64 shows that the ABI compatibility is restored. A tst-cleanup1 regression test linked with an older glibc now passes when run with the newly built glibc. Previously a tst-cleanup1 linked with an older glibc would segfault when run with an affected glibc build. Tested on x86_64 with no regressions. Signed-off-by: Carlos O'Donell <carlos@redhat.com>		2018-01-25 23:43:46 -08:00
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types	Revert Intel CET changes to __jmp_buf_tag (Bug 22743)	2018-01-25 23:43:46 -08:00
_G_config.h	Deprecate external use of libio.h and _G_config.h.	2017-12-24 09:03:28 -08:00
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