korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-28 13:34:38 +08:00
Code Issues Packages Projects Releases Wiki Activity
2be732c02a
linux/tools/perf
History
Arnaldo Carvalho de Melo 2be732c02a perf symbols: Add BSS symbols when reading from /proc/kallsyms 
We were not considering 'B' and 'b' (BSS, uninitialized data objects,
that gets set to zero at program start), do it so that we can resolve
more symbols in tools doing resolution of data operands, like 'perf c2c'.

When using vmlinux, i.e. an ELF symbol table, those were already
considered, as the decision was about STT_FUNC or STT_OBJECT, and the
later covers BSS symbols.

  # grep -i ' b ' /proc/kallsyms  | head -20 | tail -5
  ffffffffa789d030 b execute_command
  ffffffffa789d038 b initcall_command_line
  ffffffffa789d040 b static_command_line
  ffffffffa789d048 B ROOT_DEV
  ffffffffa789d050 b once.73786
  #
  # readelf -s /lib/modules/`uname -r`/build/vmlinux | grep ROOT_DEV
  79219: ffffffff8289d048     4 OBJECT  GLOBAL DEFAULT   58 ROOT_DEV
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-z960xobig39ca1pmp5brl2fr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-06 12:52:09 -03:00
..
arch perf annotate: Move objdump_path to struct annotation_options 2018-06-04 10:28:53 -03:00
bench perf bench numa: Fix typo in options 2018-05-07 12:17:56 -03:00
Documentation perf stat: Display user and system time 2018-06-06 12:52:04 -03:00
examples/bpf perf bpf: Add probe() helper to reduce kprobes boilerplate 2018-05-15 14:31:24 -03:00
include/bpf perf bpf: Add probe() helper to reduce kprobes boilerplate 2018-05-15 14:31:24 -03:00
jvmti perf jvmti: Generate correct debug information for inlined code 2017-12-18 11:54:08 -03:00
pmu-events perf vendor events intel: Remove duplicated entry for westmereep-dp in mapfile.csv 2018-05-07 15:23:45 -03:00
python perf python: Make twatch.py work with both python2 and python3 2018-02-19 12:28:08 -03:00
scripts perf script powerpc: Python script for hypervisor call statistics 2018-06-06 12:52:06 -03:00
tests perf test record+probe_libc_inet_pton: Ask 'nm' for dynamic symbols 2018-06-06 12:52:06 -03:00
trace perf trace beauty prctl: Default header_dir to cwd to work without parms 2018-06-01 16:13:06 -03:00
ui perf hists: Check if a hist_entry has callchains before using them 2018-06-06 12:52:03 -03:00
util perf symbols: Add BSS symbols when reading from /proc/kallsyms 2018-06-06 12:52:09 -03:00
.gitignore perf tools: Add trace/beauty/generated/ into .gitignore 2018-02-05 13:58:02 -03:00
Build perf trace: Remove audit-libs dependency if syscall tables are present 2018-01-23 09:51:38 -03:00
builtin-annotate.c perf annotate: Move objdump_path to struct annotation_options 2018-06-04 10:28:53 -03:00
builtin-bench.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
builtin-buildid-cache.c perf buildid-cache: Warn --purge-all failures 2018-05-15 10:32:16 -03:00
builtin-buildid-list.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-c2c.c perf srcline: Make hist_entry srcline helper consistent with map's 2018-06-04 10:28:53 -03:00
builtin-config.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-data.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
builtin-diff.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-evlist.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-ftrace.c perf ftrace: Append an EOL when write tracing files 2018-02-19 09:49:12 -03:00
builtin-help.c perf tools: Rename HAVE_SYSCALL_TABLE to HAVE_SYSCALL_TABLE_SUPPORT 2018-04-12 10:33:31 -03:00
builtin-inject.c perf thread: Make thread__find_map() return the map 2018-04-26 13:47:08 -03:00
builtin-kallsyms.c perf machine: Ditch find_kernel_function variants 2018-04-30 12:20:54 -03:00
builtin-kmem.c perf machine: Ditch find_kernel_function variants 2018-04-30 12:20:54 -03:00
builtin-kvm.c perf tools: Ditch the symbol_conf.nr_events global 2018-06-04 10:28:52 -03:00
builtin-list.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-lock.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-mem.c perf mem: Allow all record/report options 2018-04-18 15:35:48 -03:00
builtin-probe.c perf tools: No need to check if the argument to __get() function is NULL 2018-06-04 10:28:50 -03:00
builtin-record.c perf record: Synthesize features before events in pipe mode 2018-03-16 13:56:50 -03:00
builtin-report.c perf report: No need to have report_callchain_help as a global 2018-06-04 10:28:54 -03:00
builtin-sched.c perf sched: Use sched->show_callchain where appropriate 2018-06-05 10:09:54 -03:00
builtin-script.c perf script: Check if evsel has callchains before trying to use it 2018-06-05 10:09:54 -03:00
builtin-stat.c perf stat: Display user and system time 2018-06-06 12:52:04 -03:00
builtin-timechart.c perf thread: Make thread__find_symbol() return the symbol searched 2018-04-26 13:47:09 -03:00
builtin-top.c perf annotate: Move objdump_path to struct annotation_options 2018-06-04 10:28:53 -03:00
builtin-trace.c perf evsel: Add has_callchain() helper to make code more compact/clear 2018-06-05 10:09:54 -03:00
builtin-version.c perf version: Print status for syscall_table 2018-04-12 10:33:34 -03:00
builtin.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
check-headers.sh perf check-headers.sh: Add support to check 2 independent files 2018-04-26 09:30:26 -03:00
command-list.txt perf tools: Missing c2c command in command-list 2017-03-13 10:59:31 -03:00
CREDITS
design.txt
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile.config perf bpf: Add 'examples' directories 2018-05-15 14:31:23 -03:00
Makefile.perf perf bpf: Fixup include and examples install messages 2018-05-19 06:42:50 -03:00
MANIFEST perf tools: Get all of tools/{arch,include}/ in the MANIFEST 2017-09-25 10:39:43 -03:00
perf-archive.sh License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf-completion.sh perf tools: Auto-complete for events with ':' 2017-12-27 12:16:00 -03:00
perf-read-vdso.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf-sys.h Drop a bunch of metag references 2018-02-23 14:29:59 +00:00
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 tools: Remove dead quote.[ch] code 2018-06-04 10:28:50 -03:00
perf.h perf tools: Add 'perf -vv' as an alias to 'perf version --build-options' 2018-04-02 13:50:35 -03:00