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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-17 17:53:56 +08:00
linux-next/tools/perf
Wang Nan edd695b032 perf clang: Compile BPF script using builtin clang support
After this patch, perf utilizes builtin clang support to build BPF
script, no longer depend on external clang, but fallbacking to it
if for some reason the builtin compiling framework fails.

Test:

  $ type clang
  -bash: type: clang: not found
  $ cat ~/.perfconfig
  $ echo '#define LINUX_VERSION_CODE 0x040700' > ./test.c
  $ cat ./tools/perf/tests/bpf-script-example.c >> ./test.c
  $ ./perf record -v --dry-run -e ./test.c 2>&1 | grep builtin
  bpf: successfull builtin compilation
  $

Can't pass cflags so unable to include kernel headers now. Will be fixed
by following commits.

Committer notes:

Make sure '-v' comes before the '-e ./test.c' in the command line otherwise the
'verbose' variable will not be set when the bpf event is parsed and thus the
pr_debug indicating a 'successfull builtin compilation' will not be output, as
the debug level (1) will be less than what 'verbose' has at that point (0).

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Joe Stringer <joe@ovn.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/20161126070354.141764-16-wangnan0@huawei.com
[ Spell check/reflow successfull pr_debug string ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-12-05 15:51:45 -03:00
..
arch perf annotate: AArch64 support 2016-12-01 13:03:19 -03:00
bench perf bench futex: Sanitize numeric parameters 2016-10-25 09:50:53 -03:00
Documentation perf report: Add option to specify time window of interest 2016-12-01 13:03:10 -03:00
jvmti perf kvmti: Remove unused Makefile file 2016-11-14 12:42:56 -03:00
pmu-events perf vendor events: Support couple more POWER8 PVRs in mapfile 2016-10-17 13:39:47 -03:00
python perf python: Add tracepoint example 2016-07-12 16:23:35 -03:00
scripts perf/core improvements and fixes: 2016-08-04 11:02:38 +02:00
tests perf clang: Support compile IR to BPF object and add testcase 2016-12-05 15:51:44 -03:00
trace perf trace beauty mmap: Add missing MADV_FREE 2016-09-19 11:25:07 -03:00
ui perf annotate: Show invalid jump offset in error message 2016-11-25 15:56:34 -03:00
util perf clang: Compile BPF script using builtin clang support 2016-12-05 15:51:45 -03:00
.gitignore perf tools: Add arch/*/include/generated/ to .gitignore 2016-05-30 12:41:46 -03:00
Build perf c2c: Add c2c command 2016-10-19 13:18:31 -03:00
builtin-annotate.c perf annotate: Add branch stack / basic block 2016-09-08 13:44:03 -03:00
builtin-bench.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-buildid-cache.c tools: Introduce str_error_r() 2016-07-12 15:19:47 -03:00
builtin-buildid-list.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-c2c.c perf c2c: Support cascading options 2016-11-23 10:44:06 -03:00
builtin-config.c perf config: Mark where are config items from (user or system) 2016-11-14 13:10:37 -03:00
builtin-data.c perf data ctf: Add '--all' option for 'perf data convert' 2016-06-28 10:54:57 -03:00
builtin-diff.c perf hists: Add support for header span 2016-08-23 15:37:33 -03:00
builtin-evlist.c perf evlist: Rename for_each() macros to for_each_entry() 2016-06-23 11:26:15 -03:00
builtin-help.c tools: Introduce str_error_r() 2016-07-12 15:19:47 -03:00
builtin-inject.c perf symbols: Remove symbol_filter_t machinery 2016-09-05 11:14:50 -03:00
builtin-kmem.c perf kmem: Add option to specify time window of interest 2016-12-01 13:03:02 -03:00
builtin-kvm.c perf kvm: Use NSEC_PER_USEC 2016-08-23 15:37:33 -03:00
builtin-list.c perf list: Support long jevents descriptions 2016-10-03 21:35:47 -03:00
builtin-lock.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-mem.c perf tools mem: Fix -t store option for record command 2016-08-12 14:39:48 -03:00
builtin-probe.c perf probe: Ignore vmlinux Build-id when offline vmlinux given 2016-09-01 12:42:22 -03:00
builtin-record.c perf tools: Introduce perf hooks 2016-11-29 12:13:27 -03:00
builtin-report.c perf report: Add option to specify time window of interest 2016-12-01 13:03:10 -03:00
builtin-sched.c perf sched timehist: Add option to specify time window of interest 2016-12-01 13:02:52 -03:00
builtin-script.c perf script: Add option to specify time window of interest 2016-12-01 13:02:45 -03:00
builtin-stat.c perf tools: Add PMU configuration to tools 2016-09-22 13:07:36 -03:00
builtin-timechart.c perf timechart: Use NSEC_PER_U?SEC 2016-08-23 15:37:33 -03:00
builtin-top.c perf annotate: Start supporting cross arch annotation 2016-11-17 17:12:50 -03:00
builtin-trace.c perf trace: Update tid/pid filtering option to leverage symbol_conf 2016-11-25 16:04:22 -03:00
builtin-version.c perf tools: Move cmd_version() to builtin-version.c 2015-12-09 13:42:03 -03:00
builtin.h perf c2c: Add c2c command 2016-10-19 13:18:31 -03:00
command-list.txt perf tools: Do not show trace command if it's not compiled in 2016-01-08 12:46:17 -03:00
CREDITS
design.txt
Makefile perf build tests: Do parallell builds with 'build-test' 2016-02-04 15:57:00 -03:00
Makefile.config perf clang: Update test case to use real BPF script 2016-12-05 15:51:44 -03:00
Makefile.perf perf build: Add clang and llvm compile and linking support 2016-12-05 15:51:43 -03:00
MANIFEST tools lib: Add for_each_clear_bit macro 2016-10-24 11:07:33 -03:00
perf-archive.sh
perf-completion.sh perf tools: Avoid confusion with preloaded bash function for perf bash completion 2015-03-19 13:53:27 -03:00
perf-read-vdso.c
perf-sys.h perf powerpc: Fix build-test failure 2016-09-08 13:44:07 -03:00
perf-with-kcore.sh perf tools: Fix perf-with-kcore handling of arguments containing spaces 2015-08-06 16:48:27 -03:00
perf.c perf c2c: Add c2c command 2016-10-19 13:18:31 -03:00
perf.h tools: Introduce tools/include/linux/time64.h for *SEC_PER_*SEC macros 2016-08-23 15:37:33 -03:00