Changeset 0366d09d in mainline for kernel/generic/include/proc/thread.h

Timestamp:

2023-02-07T16:49:43Z (15 months ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

master, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

78acbc72

Parents:

1eaead4

git-author:

Jiří Zárevúcky <zarevucky.jiri@…> (2022-08-14 14:08:42)

git-committer:

Jiří Zárevúcky <zarevucky.jiri@…> (2023-02-07 16:49:43)

Message:

Avoid separate allocation for FPU context

With _Alignas, we can encode alignment in the type itself and
include it directly as a member of thread_t, thus removing
the need for a separate allocation.

The alignment requirement is never more than 16 bytes,
so this adds only minimal extra padding to the structure.

File:

• kernel/generic/include/proc/thread.h (modified) (1 diff)

kernel/generic/include/proc/thread.h

@@ -151 +151 @@
         link_t joiner_link;
 
-        fpu_context_t *saved_fpu_context;
+#ifdef CONFIG_FPU
+        fpu_context_t fpu_context;
+#endif
         bool fpu_context_exists;