Changeset 975ecc17 in rtems

Timestamp:

07/05/18 17:13:37 (5 years ago)

Author:

Andrew Turner <andrew@…>

Branches:

5

Children:

a9ce44b

Parents:

f43beb0

git-author:

Andrew Turner <andrew@…> (07/05/18 17:13:37)

git-committer:

Moyano, Gabriel <gabriel.moyano@…> (11/16/21 08:48:22)

Message:

Create a new macro for static DPCPU data.

On arm64 (and possible other architectures) we are unable to use static
DPCPU data in kernel modules. This is because the compiler will generate
PC-relative accesses, however the runtime-linker expects to be able to
relocate these.

In preparation to fix this create two macros depending on if the data is
global or static.

Reviewed by: bz, emaste, markj
Sponsored by: ABT Systems Ltd
Differential Revision: ​https://reviews.freebsd.org/D16140

File:

• cpukit/score/src/kern_tc.c (modified) (1 diff)

cpukit/score/src/kern_tc.c

@@ -2258 +2258 @@
 static uint64_t cpu_tick_frequency;
 
-static DPCPU_DEFINE(uint64_t, tc_cpu_ticks_base);
-static DPCPU_DEFINE(unsigned, tc_cpu_ticks_last);
+DPCPU_DEFINE_STATIC(uint64_t, tc_cpu_ticks_base);
+DPCPU_DEFINE_STATIC(unsigned, tc_cpu_ticks_last);
 
 static uint64_t