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This lets us use an unreleased formatting variant that merges all use
statements into a single block.
Change-Id: I0ff9fb960171c9af3dbd3a841e35e17a4965a246
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We're using an unstable branch over releases, as biannual package
updates are too infrequent for tools with short release cycles. We're
specifically using nixos-unstable, as this has more thorough testing
than nixpkgs-unstable does (at the cost of lagging behind, slightly).
Change-Id: Iaa5101f40148d2d85e8258cf73576bf7f531d4c1
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Change-Id: I693b9b9c5b9aff8c96b1b81f1ff7b7f2b92eabcb
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bpftrace takes a single argument to -c, and then simply does a naive
split_string(cmd, ' ') on that. This unfortunately makes it impossible
to pass arguments containing spaces to subprocesses.
Change-Id: Ib18a19f858b5acd87e54e00927173ccd4fe6ee49
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Package managers and build systems love running install phases
under fakeroot, which generates a lot of spurious syscalls for us.
This shim takes care of that without patching build systems.
The included Arch Linux PKGBUILD provides it as a replacement package
for fakeroot itself. It does not attempt to fully comply with packaging
guidelines, nor does it need to, since it isn't intended to be
upstreamable anyway.
Reviewed-by: V <v@unfathomable.blue>
Change-Id: Ie9bf87d066f9bb2de7624d705b1e4527cca14d9a
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This program spawns a child in a new cgroup (using systemd-run) under
bpftrace and counts syscall invocations for each (syscall, comm) pair.
It outputs a TSV of (syscall, comm, count) tuples to STDERR.
This makes it easy to assess which system calls a build process uses,
segmented by a useful approximation of the invoking programs.
Change-Id: I9ab7a34fda82245d3fa22b47840de16d1decf719
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This contains the source to Ripple's website, as it was published on
2020-10-07.
Change-Id: I4c871be79d8841b277d23ea741c8728ec5da8cc8
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