| commit | 04c6a8073d1c9d73c4a88b536aeb803b12fbffdc | |
| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | |
| Fri, 22 Jan 2021 16:57:32 +0000 (22 16:57 +0000) | ||
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | |
| Mon, 25 Jan 2021 16:15:54 +0000 (25 16:15 +0000) | ||
| tree | d6c6297e8d53931ddc878b3608f1e825e7232255 | treesnapshot (tar.gz zip) |
| parent | ad47748992fadb6f1663f5a76eef3c24992a1815 | commitdiff |
aarch64: Fix the list of tested IFUNC variants [BZ #26818]
Some IFUNC variants are not compatible with BTI and MTE so don't
set them as usable for testing and benchmarking on a BTI or MTE
enabled system.
As far as IFUNC selectors are concerned a system is BTI enabled if
the cpu supports it and glibc was built with BTI branch protection.
Most IFUNC variants are BTI compatible, but thunderx2 memcpy and
memmove use a jump table with indirect jump, without a BTI j.
Fixes bug 26818.
Some IFUNC variants are not compatible with BTI and MTE so don't
set them as usable for testing and benchmarking on a BTI or MTE
enabled system.
As far as IFUNC selectors are concerned a system is BTI enabled if
the cpu supports it and glibc was built with BTI branch protection.
Most IFUNC variants are BTI compatible, but thunderx2 memcpy and
memmove use a jump table with indirect jump, without a BTI j.
Fixes bug 26818.
| sysdeps/aarch64/multiarch/ifunc-impl-list.c | diffblobblamehistory | |
| sysdeps/aarch64/multiarch/init-arch.h | diffblobblamehistory |