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author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-09-30 21:13:27 -0700 |
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committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-10-03 14:13:49 -0700 |
commit | 653c12c7d880340462bd963752619a7a61bcb4e3 (patch) | |
tree | 67c128963342987f4023beba5f752f20c59c8863 /sysdeps/x86/configure | |
parent | 10c779f44ab3e9525f2d2a3c9a0aa9dedea5f1ec (diff) | |
download | glibc-653c12c7d880340462bd963752619a7a61bcb4e3.zip glibc-653c12c7d880340462bd963752619a7a61bcb4e3.tar.gz glibc-653c12c7d880340462bd963752619a7a61bcb4e3.tar.bz2 |
x86: Cleanup pthread_spin_{try}lock.S
Save a jmp on the lock path coming from an initial failure in
pthread_spin_lock.S. This costs 4-bytes of code but since the
function still fits in the same number of 16-byte blocks (default
function alignment) it does not have affect on the total binary size
of libc.so (unchanged after this commit).
pthread_spin_trylock was using a CAS when a simple xchg works which
is often more expensive.
Full check passes on x86-64.
Diffstat (limited to 'sysdeps/x86/configure')
0 files changed, 0 insertions, 0 deletions