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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-06-16 11:12:25 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-06-22 12:09:52 -0300 |
| commit | 6d97330d7acc47898b3a2bf4c8588d4bd7114269 (patch) | |
| tree | f4a810ada7ed9cd26e6b9d7ac0b273b423112594 /time/Makefile | |
| parent | b769b0a2cbe469a42641e52f52484e18575b7f67 (diff) | |
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linux: Only use 64-bit syscall if required for clock_nanosleep
For !__ASSUME_TIME64_SYSCALLS there is no need to issue a 64-bit syscall
if the provided timeout fits in a 32-bit one. The 64-bit usage should
be rare since the timeout is a relative one.
Checked on i686-linux-gnu on a 4.15 kernel and on a 5.11 kernel
(with and without --enable-kernel=5.1) and on x86_64-linux-gnu.
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'time/Makefile')
| -rw-r--r-- | time/Makefile | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/time/Makefile b/time/Makefile index c84bd5d3ec..0bea84966c 100644 --- a/time/Makefile +++ b/time/Makefile @@ -86,6 +86,15 @@ $(objpfx)tst-strftime2.out: $(gen-locales) $(objpfx)tst-strftime3.out: $(gen-locales) endif +ifeq (yes,$(build-shared)) +librt = $(common-objpfx)rt/librt.so +else +librt = $(common-objpfx)rt/librt.a +endif + +$(objpfx)tst-clock_nanosleep: $(librt) +$(objpfx)tst-clock_nanosleep-time64: $(librt) + tz-cflags = -DTZDIR='"$(zonedir)"' \ -DTZDEFAULT='"$(localtime-file)"' \ -DTZDEFRULES='"$(posixrules-file)"' |