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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 /Documentation/features
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>
Diffstat (limited to 'Documentation/features')
-rw-r--r--Documentation/features/core/jump-labels/arch-support.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/features/core/jump-labels/arch-support.txt b/Documentation/features/core/jump-labels/arch-support.txt
index 27cbd63abfd2..60111395f932 100644
--- a/Documentation/features/core/jump-labels/arch-support.txt
+++ b/Documentation/features/core/jump-labels/arch-support.txt
@@ -29,5 +29,5 @@
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
- | xtensa: | TODO |
+ | xtensa: | ok |
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