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Thanks! On 22/07/2025 11:07, Alan Maguire wrote: > This series adds TCP provider support, where the probes are > implemented via underlying fbt and sdt probes. > > Due to the use of the sock/inet_sock_set_state tracepoint, intended > for ~5.15 kernels and later. Tried replacing this with > > fbt::tcp_set_state:entry > > but this misses a few state transitions, so stuck with using > the tracepoint. > > All tests under test/unittest/tcp pass unmodified on an upstream > (6.15) kernel and 5.15 UEK7U3 kernel. The updated remote address > retrieval patch helps ensure tests can all be run. > > It implements all documented TCP provider probes: > > accept-established, accept-refused, connnect-request, > connect-established, connect-refused, receive, send, > state-change > > Note that to function correctly this series depends on the > cg-related patches: > > parser: add dt_node_is_tstring() > cg: validate tstring alloc/free > cg: optimize ternary expressions for strings > tstring: fix leaks > > Changes since v4: > > - updated patch 1 to rename dt_cg_get_member() to > dt_cg_tramp_get_member() and have it make use of > dt_cg_ctf_offsetof() (Kris, patch 1) > - remove tslot update patch since it is handled elsewhere > (Kris) > - added R-Bs from Kris > > Changes since v3: > > - fix patch 2 to really use/describe 6 tstring slots (patch 2) > > Changes since v2: > > - document tslots change properly, add test (Eugene, patch 2, 3) > - move more generic type definitions to net.d > - retain depends_on provider tcp in tcp.d (Kris, patch 5) > - use depends_on library ip.d to ensure loading order (patch 5) > - revert tcp flags to uint8_t (Kris, patch 5) > - improve comments in tcp.d (Kris, Eugene, patch 5) > - fix up handling of ip:::send for older kernels to avoid null > dereferences (Eugene, patch 5) > - fix up provider arguments to match spec (Eugene, patch 5) > > Changes since RFC: > > - fixed issues with test failures on UEK7 due to missing > SYN_RCV state change > - moved get_member() to dt_cg.c (patch 1) > > Alan Maguire (6): > cg: refactor get_member() to use dt_cg_ctf_offsetof > test/operators: extend ternary tests to cover inet_ntoa*()s > providers: move network-generic definitions to net.d > tcp: new provider > dlibs: sync ip.d, net.d and tcp.d > unittest/tcp: update test.x > > dlibs/aarch64/5.11/ip.d | 27 +- > dlibs/aarch64/5.11/net.d | 31 +- > dlibs/aarch64/5.11/tcp.d | 67 +++-- > dlibs/aarch64/5.12/ip.d | 27 +- > dlibs/aarch64/5.12/net.d | 31 +- > dlibs/aarch64/5.12/tcp.d | 67 +++-- > dlibs/aarch64/5.14/ip.d | 27 +- > dlibs/aarch64/5.14/net.d | 31 +- > dlibs/aarch64/5.14/tcp.d | 67 +++-- > dlibs/aarch64/5.16/ip.d | 27 +- > dlibs/aarch64/5.16/net.d | 31 +- > dlibs/aarch64/5.16/tcp.d | 67 +++-- > dlibs/aarch64/5.2/ip.d | 27 +- > dlibs/aarch64/5.2/net.d | 31 +- > dlibs/aarch64/5.2/tcp.d | 67 +++-- > dlibs/aarch64/5.6/ip.d | 27 +- > dlibs/aarch64/5.6/net.d | 31 +- > dlibs/aarch64/5.6/tcp.d | 67 +++-- > dlibs/aarch64/6.1/ip.d | 27 +- > dlibs/aarch64/6.1/net.d | 31 +- > dlibs/aarch64/6.1/tcp.d | 67 +++-- > dlibs/aarch64/6.10/ip.d | 27 +- > dlibs/aarch64/6.10/net.d | 31 +- > dlibs/aarch64/6.10/tcp.d | 67 +++-- > dlibs/x86_64/5.11/ip.d | 27 +- > dlibs/x86_64/5.11/net.d | 31 +- > dlibs/x86_64/5.11/tcp.d | 67 +++-- > dlibs/x86_64/5.12/ip.d | 27 +- > dlibs/x86_64/5.12/net.d | 31 +- > dlibs/x86_64/5.12/tcp.d | 67 +++-- > dlibs/x86_64/5.14/ip.d | 27 +- > dlibs/x86_64/5.14/net.d | 31 +- > dlibs/x86_64/5.14/tcp.d | 67 +++-- > dlibs/x86_64/5.16/ip.d | 27 +- > dlibs/x86_64/5.16/net.d | 31 +- > dlibs/x86_64/5.16/tcp.d | 67 +++-- > dlibs/x86_64/5.2/ip.d | 27 +- > dlibs/x86_64/5.2/net.d | 31 +- > dlibs/x86_64/5.2/tcp.d | 67 +++-- > dlibs/x86_64/5.6/ip.d | 27 +- > dlibs/x86_64/5.6/net.d | 31 +- > dlibs/x86_64/5.6/tcp.d | 67 +++-- > dlibs/x86_64/6.1/ip.d | 27 +- > dlibs/x86_64/6.1/net.d | 31 +- > dlibs/x86_64/6.1/tcp.d | 67 +++-- > dlibs/x86_64/6.10/ip.d | 27 +- > dlibs/x86_64/6.10/net.d | 31 +- > dlibs/x86_64/6.10/tcp.d | 67 +++-- > libdtrace/Build | 2 + > libdtrace/dt_cg.c | 57 +++- > libdtrace/dt_cg.h | 4 +- > libdtrace/dt_prov_io.c | 84 +++--- > libdtrace/dt_prov_ip.c | 45 +-- > libdtrace/dt_prov_proc.c | 4 +- > libdtrace/dt_prov_sched.c | 2 +- > libdtrace/dt_prov_tcp.c | 413 ++++++++++++++++++++++++++ > libdtrace/dt_prov_uprobe.c | 4 +- > libdtrace/dt_provider.c | 1 + > libdtrace/dt_provider.h | 1 + > libdtrace/ip.d | 27 +- > libdtrace/net.d | 31 +- > libdtrace/tcp.d | 67 +++-- > test/unittest/operators/tst.ternary.d | 20 +- > test/unittest/operators/tst.ternary.r | 2 + > test/unittest/tcp/test.x | 8 +- > 65 files changed, 1731 insertions(+), 1041 deletions(-) > create mode 100644 libdtrace/dt_prov_tcp.c >