linux/kernel/trace
Jakub Kicinski 36e5e391a2 bpf-next-for-netdev
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2023-03-06

We've added 85 non-merge commits during the last 13 day(s) which contain
a total of 131 files changed, 7102 insertions(+), 1792 deletions(-).

The main changes are:

1) Add skb and XDP typed dynptrs which allow BPF programs for more
   ergonomic and less brittle iteration through data and variable-sized
   accesses, from Joanne Koong.

2) Bigger batch of BPF verifier improvements to prepare for upcoming BPF
   open-coded iterators allowing for less restrictive looping capabilities,
   from Andrii Nakryiko.

3) Rework RCU enforcement in the verifier, add kptr_rcu and enforce BPF
   programs to NULL-check before passing such pointers into kfunc,
   from Alexei Starovoitov.

4) Add support for kptrs in percpu hashmaps, percpu LRU hashmaps and in
   local storage maps, from Kumar Kartikeya Dwivedi.

5) Add BPF verifier support for ST instructions in convert_ctx_access()
   which will help new -mcpu=v4 clang flag to start emitting them,
   from Eduard Zingerman.

6) Make uprobe attachment Android APK aware by supporting attachment
   to functions inside ELF objects contained in APKs via function names,
   from Daniel Müller.

7) Add a new flag BPF_F_TIMER_ABS flag for bpf_timer_start() helper
   to start the timer with absolute expiration value instead of relative
   one, from Tero Kristo.

8) Add a new kfunc bpf_cgroup_from_id() to look up cgroups via id,
   from Tejun Heo.

9) Extend libbpf to support users manually attaching kprobes/uprobes
   in the legacy/perf/link mode, from Menglong Dong.

10) Implement workarounds in the mips BPF JIT for DADDI/R4000,
   from Jiaxun Yang.

11) Enable mixing bpf2bpf and tailcalls for the loongarch BPF JIT,
    from Hengqi Chen.

12) Extend BPF instruction set doc with describing the encoding of BPF
    instructions in terms of how bytes are stored under big/little endian,
    from Jose E. Marchesi.

13) Follow-up to enable kfunc support for riscv BPF JIT, from Pu Lehui.

14) Fix bpf_xdp_query() backwards compatibility on old kernels,
    from Yonghong Song.

15) Fix BPF selftest cross compilation with CLANG_CROSS_FLAGS,
    from Florent Revest.

16) Improve bpf_cpumask_ma to only allocate one bpf_mem_cache,
    from Hou Tao.

17) Fix BPF verifier's check_subprogs to not unnecessarily mark
    a subprogram with has_tail_call, from Ilya Leoshkevich.

18) Fix arm syscall regs spec in libbpf's bpf_tracing.h, from Puranjay Mohan.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (85 commits)
  selftests/bpf: Add test for legacy/perf kprobe/uprobe attach mode
  selftests/bpf: Split test_attach_probe into multi subtests
  libbpf: Add support to set kprobe/uprobe attach mode
  tools/resolve_btfids: Add /libsubcmd to .gitignore
  bpf: add support for fixed-size memory pointer returns for kfuncs
  bpf: generalize dynptr_get_spi to be usable for iters
  bpf: mark PTR_TO_MEM as non-null register type
  bpf: move kfunc_call_arg_meta higher in the file
  bpf: ensure that r0 is marked scratched after any function call
  bpf: fix visit_insn()'s detection of BPF_FUNC_timer_set_callback helper
  bpf: clean up visit_insn()'s instruction processing
  selftests/bpf: adjust log_fixup's buffer size for proper truncation
  bpf: honor env->test_state_freq flag in is_state_visited()
  selftests/bpf: enhance align selftest's expected log matching
  bpf: improve regsafe() checks for PTR_TO_{MEM,BUF,TP_BUFFER}
  bpf: improve stack slot state printing
  selftests/bpf: Disassembler tests for verifier.c:convert_ctx_access()
  selftests/bpf: test if pointer type is tracked for BPF_ST_MEM
  bpf: allow ctx writes using BPF_ST_MEM instruction
  bpf: Use separate RCU callbacks for freeing selem
  ...
====================

Link: https://lore.kernel.org/r/20230307004346.27578-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-06 20:36:39 -08:00
..
rv rv: remove redundant initialization of pointer ptr 2023-01-25 10:31:02 -05:00
blktrace.c trace/blktrace: fix memory leak with using debugfs_lookup() 2023-02-06 09:29:30 -07:00
bpf_trace.c bpf: Make bpf_get_current_[ancestor_]cgroup_id() available for all program types 2023-03-02 22:37:07 -08:00
bpf_trace.h
error_report-traces.c
fgraph.c arm64 fixes for 5.19-rc1: 2022-06-03 14:05:34 -07:00
fprobe.c tracing/fprobe: Fix to check whether fprobe is registered correctly 2022-11-04 08:50:07 +09:00
ftrace_internal.h
ftrace.c Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
Kconfig tracing updates for 6.3: 2023-02-23 10:20:49 -08:00
kprobe_event_gen_test.c tracing: Always use canonical ftrace path 2023-02-18 14:34:09 -05:00
Makefile rv: Add Runtime Verification (RV) interface 2022-07-30 14:01:28 -04:00
pid_list.c tracing: Cleanup double word in comment 2022-04-26 17:58:50 -04:00
pid_list.h
power-traces.c
preemptirq_delay_test.c
rethook.c rethook: fix a potential memleak in rethook_alloc() 2022-11-18 10:15:34 +09:00
ring_buffer_benchmark.c ring_buffer: Remove unused "event" parameter 2022-11-23 19:08:30 -05:00
ring_buffer.c tracing updates for 6.3: 2023-02-23 10:20:49 -08:00
rpm-traces.c
synth_event_gen_test.c tracing: Always use canonical ftrace path 2023-02-18 14:34:09 -05:00
trace_benchmark.c tracing: Add numeric delta time to the trace event benchmark 2022-09-26 13:01:09 -04:00
trace_benchmark.h tracing: Add numeric delta time to the trace event benchmark 2022-09-26 13:01:09 -04:00
trace_boot.c tracing: Initialize integer variable to prevent garbage return value 2022-05-26 21:13:00 -04:00
trace_branch.c
trace_clock.c
trace_dynevent.c tracing: Free buffers when a used dynamic event is removed 2022-11-23 19:07:12 -05:00
trace_dynevent.h
trace_entries.h
trace_eprobe.c kernel/trace: extract common part in process_fetch_insn 2023-02-24 10:04:13 +09:00
trace_event_perf.c tracing/perf: Use strndup_user instead of kzalloc/strncpy_from_user 2022-11-23 19:08:31 -05:00
trace_events_filter_test.h
trace_events_filter.c tracing: Add a way to filter function addresses to function names 2023-01-25 10:31:11 -05:00
trace_events_hist.c tracing/histogram: Fix stacktrace key 2023-02-16 13:48:15 -05:00
trace_events_inject.c tracing: Support __rel_loc relative dynamic data location attribute 2021-12-06 15:37:21 -05:00
trace_events_synth.c probes cleanup updates for v6.3: 2023-02-25 13:06:28 -08:00
trace_events_trigger.c tracing: Do not synchronize freeing of trigger filter on boot up 2022-12-14 08:50:56 -05:00
trace_events_user.c Tracing updates for 6.2: 2022-12-15 18:01:16 -08:00
trace_events.c tracing updates for 6.3: 2023-02-23 10:20:49 -08:00
trace_export.c tracing: Fix TASK_COMM_LEN in trace event format file 2023-02-12 10:23:39 -05:00
trace_functions_graph.c
trace_functions.c
trace_hwlat.c trace/hwlat: make use of the helper function kthread_run_on_cpu() 2022-01-15 16:30:24 +02:00
trace_irqsoff.c
trace_kdb.c
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c kernel/trace: extract common part in process_fetch_insn 2023-02-24 10:04:13 +09:00
trace_mmiotrace.c
trace_nop.c
trace_osnoise.c tracing/osnoise: No need for schedule_hrtimeout range 2023-02-07 12:34:11 -05:00
trace_output.c tracing: Make sure trace_printk() can output as soon as it can be used 2023-01-24 11:27:29 -05:00
trace_output.h
trace_preemptirq.c cpuidle: tracing, preempt: Squash _rcuidle tracing 2023-01-31 15:01:46 +01:00
trace_printk.c
trace_probe_kernel.h kernel/trace: Provide default impelentations defined in trace_probe_tmpl.h 2023-02-24 09:44:27 +09:00
trace_probe_tmpl.h kernel/trace: extract common part in process_fetch_insn 2023-02-24 10:04:13 +09:00
trace_probe.c kernel/trace: Introduce trace_probe_print_args and use it in *probes 2023-02-24 09:44:15 +09:00
trace_probe.h kernel/trace: Introduce trace_probe_print_args and use it in *probes 2023-02-24 09:44:15 +09:00
trace_recursion_record.c tracing: Use trace_create_file() to simplify creation of tracefs entries 2022-05-26 21:12:52 -04:00
trace_sched_switch.c sched/tracing: Append prev_state to tp args instead 2022-05-12 00:37:11 +02:00
trace_sched_wakeup.c sched/tracing: Append prev_state to tp args instead 2022-05-12 00:37:11 +02:00
trace_selftest_dynamic.c
trace_selftest.c x86/ftrace: Make it call depth tracking aware 2022-10-17 16:41:19 +02:00
trace_seq.c tracing: Acquire buffer from temparary trace sequence 2023-02-07 12:42:54 -05:00
trace_stack.c
trace_stat.c
trace_stat.h
trace_synth.h tracing: Allow synthetic events to pass around stacktraces 2023-01-25 10:31:24 -05:00
trace_syscalls.c tracing: Remove unused __bad_type_size() method 2022-11-17 20:21:06 -05:00
trace_uprobe.c kernel/trace: extract common part in process_fetch_insn 2023-02-24 10:04:13 +09:00
trace.c probes updates for 6.3: 2023-02-23 13:03:08 -08:00
trace.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha 2023-02-25 12:49:29 -08:00
tracing_map.c tracing: Remove unused variable 'dups' 2022-10-03 12:20:31 -04:00
tracing_map.h