diff options
author | Florian Weimer <fweimer@redhat.com> | 2021-12-09 09:49:32 +0100 |
---|---|---|
committer | Florian Weimer <fweimer@redhat.com> | 2021-12-09 09:49:32 +0100 |
commit | c901c3e764d7c7079f006b4e21e877d5036eb4f5 (patch) | |
tree | ed5a2defd04179a354f4581b0b94b50b6634751e /sysdeps/unix/sysv/linux/arm/be | |
parent | e3e589829d16af9f7e73c7b70f74f3c5d5003e45 (diff) | |
download | glibc-c901c3e764d7c7079f006b4e21e877d5036eb4f5.tar.gz glibc-c901c3e764d7c7079f006b4e21e877d5036eb4f5.tar.xz glibc-c901c3e764d7c7079f006b4e21e877d5036eb4f5.zip |
nptl: Add public rseq symbols and <sys/rseq.h>
The relationship between the thread pointer and the rseq area is made explicit. The constant offset can be used by JIT compilers to optimize rseq access (e.g., for really fast sched_getcpu). Extensibility is provided through __rseq_size and __rseq_flags. (In the future, the kernel could request a different rseq size via the auxiliary vector.) Co-Authored-By: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/arm/be')
-rw-r--r-- | sysdeps/unix/sysv/linux/arm/be/ld.abilist | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/be/ld.abilist b/sysdeps/unix/sysv/linux/arm/be/ld.abilist index cc8825c3bc..3859433b21 100644 --- a/sysdeps/unix/sysv/linux/arm/be/ld.abilist +++ b/sysdeps/unix/sysv/linux/arm/be/ld.abilist @@ -1,3 +1,6 @@ +GLIBC_2.35 __rseq_flags D 0x4 +GLIBC_2.35 __rseq_offset D 0x4 +GLIBC_2.35 __rseq_size D 0x4 GLIBC_2.4 __libc_stack_end D 0x4 GLIBC_2.4 __stack_chk_guard D 0x4 GLIBC_2.4 __tls_get_addr F |