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| author | Ingo Molnar <mingo@kernel.org> | 2017-08-10 17:07:02 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-10 17:07:02 +0200 |
| commit | 82119cbe8e1e32cc2a941393e59816e731681310 (patch) | |
| tree | 66284cba95a22a17e0a8401d1af59cc3feb75e8b /tools/lib/bpf | |
| parent | kprobes/x86: Do not jump-optimize kprobes on irq entry code (diff) | |
| parent | perf trace beautify ioctl: Beautify perf ioctl's 'cmd' arg (diff) | |
| download | linux-82119cbe8e1e32cc2a941393e59816e731681310.tar.xz linux-82119cbe8e1e32cc2a941393e59816e731681310.zip | |
Merge tag 'perf-core-for-mingo-4.14-20170801' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements from Arnaldo Carvalho de Melo:
User visible changes:
- Beautifiers for the 'cmd' arg of several ioctl types, including:
sound, DRM, KVM, vhost virtio and perf_events.
This was done by using scripts that extract the information from
the UAPI headers, generating string tables that are then used in
the 'perf trace' syscall argument ioctl beautifier.
More work needed to further use it, for instance, to use the
_IOC_DIR value where it is used sanely to suppress the third
argument, to set formatters for non-pointer values and ultimately
for using eBPF + pahole-like code to collect + beautify structs in
the third arg.
Using the current scheme of having tools/ copies of kernel headers
we'll make sure tooling stays working when changes are made to the
kernel ABI headers and will be notified when they get changed,
reducing the time for 'perf trace' to support new ABIs and allowing
the tools/perf/ codebase to have the definitions it needs to
build in dozens of distros/versions, as routinely tested using
containers for, at this time, 47 environments. (Arnaldo Carvalho de Melo)
Infrastructure changes:
- Clarify header version warning message (Ingo Molnar)
- Sync kernel ABI headers with tooling headers (Ingo Molnar, Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/lib/bpf')
| -rw-r--r-- | tools/lib/bpf/Makefile | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile index 1f5300e56b44..e87b5903f4bb 100644 --- a/tools/lib/bpf/Makefile +++ b/tools/lib/bpf/Makefile @@ -156,10 +156,10 @@ all_cmd: $(CMD_TARGETS) $(BPF_IN): force elfdep bpfdep @(test -f ../../../include/uapi/linux/bpf.h -a -f ../../../include/uapi/linux/bpf.h && ( \ (diff -B ../../include/uapi/linux/bpf.h ../../../include/uapi/linux/bpf.h >/dev/null) || \ - echo "Warning: tools/include/uapi/linux/bpf.h differs from kernel" >&2 )) || true + echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h'" >&2 )) || true @(test -f ../../../include/uapi/linux/bpf_common.h -a -f ../../../include/uapi/linux/bpf_common.h && ( \ (diff -B ../../include/uapi/linux/bpf_common.h ../../../include/uapi/linux/bpf_common.h >/dev/null) || \ - echo "Warning: tools/include/uapi/linux/bpf_common.h differs from kernel" >&2 )) || true + echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf_common.h' differs from latest version at 'include/uapi/linux/bpf_common.h'" >&2 )) || true $(Q)$(MAKE) $(build)=libbpf $(OUTPUT)libbpf.so: $(BPF_IN) |