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authorMax Filippov <jcmvbkbc@gmail.com>2018-12-20 06:48:37 +0300
committerMax Filippov <jcmvbkbc@gmail.com>2018-12-21 01:44:38 +0300
commit64711f9a47d4defa90417f5e8db8ed0060bc3275 (patch)
tree78a9fbb468c6b667ea99b57e6563689792b285d3 /crypto/sha512_generic.c
parentaf5395c214c15c18de3decf2229373a8c88c4fde (diff)
downloadlinux-64711f9a47d4defa90417f5e8db8ed0060bc3275.tar.xz
xtensa: implement jump_label support
Use 3-byte 'nop' and 'j' instructions that are always present. Don't let assembler mark a spot right after patchable 'j' instruction as unreachable and later put literals or padding bytes there. Add separate implementations of patch_text for SMP and UP cases, avoiding use of atomics on UP. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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