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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-06-15 16:59:50 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-06-22 12:09:52 -0300 |
| commit | 91cf411ad3ef10bd18ec053854fcb919be4f6789 (patch) | |
| tree | 9d3f802bd16bda2cee81aa61509384890b9f596f /misc/Makefile | |
| parent | ecf2661281c71a9752c7238ab93bc12b16cfff23 (diff) | |
| download | glibc-91cf411ad3ef10bd18ec053854fcb919be4f6789.zip glibc-91cf411ad3ef10bd18ec053854fcb919be4f6789.tar.gz glibc-91cf411ad3ef10bd18ec053854fcb919be4f6789.tar.bz2 | |
linux: Only use 64-bit syscall if required for pselect
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. This also avoids the need
to use supports_time64() (which breaks the usage case of live migration
like CRIU or similar).
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 'misc/Makefile')
| -rw-r--r-- | misc/Makefile | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/misc/Makefile b/misc/Makefile index f34ab09..fa40bf0 100644 --- a/misc/Makefile +++ b/misc/Makefile @@ -148,6 +148,12 @@ CFLAGS-brk.op = $(no-stack-protector) include ../Rules +ifeq (yes,$(build-shared)) +librt = $(common-objpfx)rt/librt.so +else +librt = $(common-objpfx)rt/librt.a +endif + $(objpfx)libg.a: $(dep-dummy-lib); $(make-dummy-lib) $(objpfx)tst-tsearch: $(libm) @@ -162,3 +168,6 @@ tst-allocate_once-ENV = MALLOC_TRACE=$(objpfx)tst-allocate_once.mtrace $(objpfx)tst-allocate_once-mem.out: $(objpfx)tst-allocate_once.out $(common-objpfx)malloc/mtrace $(objpfx)tst-allocate_once.mtrace > $@; \ $(evaluate-test) + +$(objpfx)tst-pselect: $(librt) +$(objpfx)tst-pselect-time64: $(librt) |