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History

Rich Felker 0ff18be208 fix incorrect __hwcap seen in dynamic-linked __set_thread_area the bug fixed in commit `b82cd6c78d` was mostly masked on arm because __hwcap was zero at the point of the call from the dynamic linker to __set_thread_area, causing the access to libc.auxv to be skipped and kuser_helper versions of TLS access and atomics to be used instead of the armv6 or v7 versions. however, on kernels with kuser_helper removed for hardening it would crash. since __set_thread_area potentially uses __hwcap, it must be initialized before the function is called. move the AT_HWCAP lookup from stage 3 to stage 2b.	2020-01-15 16:15:49 -05:00
..
dlstart.c	define and use internal macros for hidden visibility, weak refs	2018-09-05 14:05:14 -04:00
dynlink.c	fix incorrect __hwcap seen in dynamic-linked __set_thread_area	2020-01-15 16:15:49 -05:00

Rich Felker 0ff18be208 fix incorrect __hwcap seen in dynamic-linked __set_thread_area

the bug fixed in commit b82cd6c78d was
mostly masked on arm because __hwcap was zero at the point of the call
from the dynamic linker to __set_thread_area, causing the access to
libc.auxv to be skipped and kuser_helper versions of TLS access and
atomics to be used instead of the armv6 or v7 versions. however, on
kernels with kuser_helper removed for hardening it would crash.

since __set_thread_area potentially uses __hwcap, it must be
initialized before the function is called. move the AT_HWCAP lookup
from stage 3 to stage 2b.

2020-01-15 16:15:49 -05:00

dlstart.c define and use internal macros for hidden visibility, weak refs 2018-09-05 14:05:14 -04:00

dynlink.c fix incorrect __hwcap seen in dynamic-linked __set_thread_area 2020-01-15 16:15:49 -05:00