diff options
author | Florian Weimer <fweimer@redhat.com> | 2021-02-23 14:59:34 +0100 |
---|---|---|
committer | Florian Weimer <fweimer@redhat.com> | 2021-02-23 14:59:34 +0100 |
commit | 5a664d7ae8e42d641a7b4b436987ff67ab483b08 (patch) | |
tree | d2530831e3613ab86b5f536341304ac8cc98f452 /sysdeps/unix/sysv/linux/s390/elision-conf.h | |
parent | 597d0267b5c4a925f0175837ec09df9f77e0a250 (diff) | |
download | glibc-5a664d7ae8e42d641a7b4b436987ff67ab483b08.tar.gz glibc-5a664d7ae8e42d641a7b4b436987ff67ab483b08.tar.xz glibc-5a664d7ae8e42d641a7b4b436987ff67ab483b08.zip |
nptl: Move elision implementations into libc
The elision interfaces are closely aligned between the targets that implement them, so declare them in the generic <lowlevellock.h> file. Empty .c stubs are provided, so that fewer makefile updates under sysdeps are needed. Also simplify initialization via __libc_early_init. The symbols __lll_clocklock_elision, __lll_lock_elision, __lll_trylock_elision, __lll_unlock_elision, __pthread_force_elision move into libc. For the time being, non-hidden references are used from libpthread to access them, but once that part of libpthread is moved into libc, hidden symbols will be used again. (Hidden references seem desirable to reduce the likelihood of transactions aborts.)
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/elision-conf.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/s390/elision-conf.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/elision-conf.h b/sysdeps/unix/sysv/linux/s390/elision-conf.h index 846c5ff297..cb8a784ad0 100644 --- a/sysdeps/unix/sysv/linux/s390/elision-conf.h +++ b/sysdeps/unix/sysv/linux/s390/elision-conf.h @@ -21,6 +21,9 @@ #include <pthread.h> #include <time.h> +#define ENABLE_ELISION_SUPPORT 1 +#define ELISION_UNLOCK_NEEDS_ADAPT_COUNT 1 + /* Should make sure there is no false sharing on this. */ struct elision_config @@ -34,9 +37,4 @@ struct elision_config extern struct elision_config __elision_aconf attribute_hidden; -extern int __pthread_force_elision attribute_hidden; - -/* Tell the test suite to test elision for this architecture. */ -#define HAVE_ELISION 1 - #endif |