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Differential D44389

libc: INTERPOS_SYS macro for interposed syscalls
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Authored by brooks on Mar 15 2024, 10:49 PM.

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rG7dd9070e4425: libc: INTERPOS_SYS macro for interposed syscalls

Summary

This macro makes uses the __sys_<foo>_t typedefs from libsys.h to
greatly simplify calling functions in the interposing table.

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rG FreeBSD src repository

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Event Timeline

brooks created this revision.Mar 15 2024, 10:49 PM

Herald added a subscriber: imp. · View Herald TranscriptMar 15 2024, 10:49 PM

brooks requested review of this revision.Mar 15 2024, 10:49 PM

Harbormaster completed remote builds in B56642: Diff 135812.Mar 15 2024, 10:49 PM

brooks added a parent revision: D44388: lib{c,rt}: use libsys.h for __sys_* declerations.Mar 15 2024, 10:49 PM

kib added inline comments.Mar 16 2024, 2:41 AM

lib/libc/include/libc_private.h
256
257	Did you considered adding vararg args to the INTERPOS_SYS() so that it provides complete syntax for the call, instead of requiring (args) after as independent tokens?

Make INTERPOS_SYS varargs

Harbormaster completed remote builds in B56684: Diff 135915.Mar 18 2024, 7:40 PM

space in (type *)

Harbormaster completed remote builds in B56685: Diff 135916.Mar 18 2024, 7:41 PM

Technically the var args change requires C23/C++20 for __VA_OPT__, but all the compiler we care about support it regardless of compilation mode (gcc 8+ and clang 12+).

kib accepted this revision.Mar 18 2024, 7:54 PM

This revision is now accepted and ready to land.Mar 18 2024, 7:54 PM

Closed by commit rG7dd9070e4425: libc: INTERPOS_SYS macro for interposed syscalls (authored by brooks). · Explain WhyTue, Apr 16, 4:50 PM

This revision was automatically updated to reflect the committed changes.

brooks added a commit: rG7dd9070e4425: libc: INTERPOS_SYS macro for interposed syscalls.

Revision Contents
Changeset List

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include/

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sys/

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clock_nanosleep.c

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Diff 137114

lib/libc/gen/sleep.c

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lib/libc/gen/usleep.c

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lib/libc/include/libc_private.h

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lib/libc/sys/accept.c

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lib/libc/sys/accept4.c

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lib/libc/sys/aio_suspend.c

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lib/libc/sys/clock_nanosleep.c

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lib/libc/sys/close.c

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lib/libc/sys/connect.c

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lib/libc/sys/creat.c

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lib/libc/sys/fcntl.c

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lib/libc/sys/fdatasync.c

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lib/libc/sys/fork.c

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lib/libc/sys/fsync.c

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lib/libc/sys/kevent.c

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lib/libc/sys/lockf.c

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lib/libc/sys/msync.c

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lib/libc/sys/nanosleep.c

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lib/libc/sys/open.c

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lib/libc/sys/openat.c

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lib/libc/sys/pdfork.c

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lib/libc/sys/poll.c

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lib/libc/sys/ppoll.c

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lib/libc/sys/pselect.c

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lib/libc/sys/read.c

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lib/libc/sys/readv.c

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lib/libc/sys/recv.c

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lib/libc/sys/recvfrom.c

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lib/libc/sys/recvmsg.c

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lib/libc/sys/select.c

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lib/libc/sys/send.c

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lib/libc/sys/sendmsg.c

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lib/libc/sys/sendto.c

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lib/libc/sys/setcontext.c

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lib/libc/sys/sigaction.c

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lib/libc/sys/sigprocmask.c

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lib/libc/sys/sigsuspend.c

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lib/libc/sys/sigtimedwait.c

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lib/libc/sys/sigwait.c

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lib/libc/sys/sigwaitinfo.c

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lib/libc/sys/swapcontext.c

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lib/libc/sys/wait.c

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lib/libc/sys/wait3.c

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lib/libc/sys/wait4.c

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lib/libc/sys/wait6.c

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lib/libc/sys/waitid.c

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lib/libc/sys/waitpid.c

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lib/libc/sys/write.c

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lib/libc/sys/writev.c

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