We keep having bug reports that when users build perf on their own,
but they don't install some needed libraries such as libelf,
libbfd/libibery.
The perf can build, but it is missing important functionality. And
users may complain that perf has issue or bug.
This patch-set support to print the status of compiled-in libraries.
Once users think perf missing some functionality, it should be very
easy for them to check the libraries status.
For example:
$ ./perf version --build-options
or
./perf --version --build-options
or
./perf -v --build-options
or
./perf -vv
perf version 4.13.rc5.g6727c5
dwarf: [ on ] # HAVE_DWARF_SUPPORT
dwarf_getlocations: [ on ] # HAVE_DWARF_GETLOCATIONS_SUPPORT
glibc: [ on ] # HAVE_GLIBC_SUPPORT
gtk2: [ on ] # HAVE_GTK2_SUPPORT
libaudit: [ OFF ] # HAVE_LIBAUDIT_SUPPORT
libbfd: [ on ] # HAVE_LIBBFD_SUPPORT
libelf: [ on ] # HAVE_LIBELF_SUPPORT
libnuma: [ on ] # HAVE_LIBNUMA_SUPPORT
numa_num_possible_cpus: [ on ] # HAVE_LIBNUMA_SUPPORT
libperl: [ on ] # HAVE_LIBPERL_SUPPORT
libpython: [ on ] # HAVE_LIBPYTHON_SUPPORT
libslang: [ on ] # HAVE_SLANG_SUPPORT
libcrypto: [ on ] # HAVE_LIBCRYPTO_SUPPORT
libunwind: [ on ] # HAVE_LIBUNWIND_SUPPORT
libdw-dwarf-unwind: [ on ] # HAVE_DWARF_SUPPORT
zlib: [ on ] # HAVE_ZLIB_SUPPORT
lzma: [ on ] # HAVE_LZMA_SUPPORT
get_cpuid: [ on ] # HAVE_AUXTRACE_SUPPORT
bpf: [ on ] # HAVE_LIBBPF_SUPPORT
v4:
---
1. Also print the macro name. That would make it easier
to grep around in the source looking for where code
related a particular features is located.
2. Update since HAVE_DWARF_GETLOCATIONS is renamed to
HAVE_DWARF_GETLOCATIONS_SUPPORT
Patch impacted:
---------------
perf config: Rename to HAVE_DWARF_GETLOCATIONS_SUPPORT
perf version: Print the compiled-in status of libraries
others not changed
Jin Yao (5):
perf config: Add some new -DHAVE_XXX to CFLAGS
perf config: Rename to HAVE_DWARF_GETLOCATIONS_SUPPORT
perf version: Print the compiled-in status of libraries
perf: Support perf -vv
perf Documentation: Create perf-version.txt
Jiri Olsa (1):
tools include: Add config.h header file
tools/include/tools/config.h | 34 +++++++++++++
tools/perf/Documentation/perf-version.txt | 24 +++++++++
tools/perf/Makefile.config | 8 ++-
tools/perf/builtin-version.c | 82 ++++++++++++++++++++++++++++++-
tools/perf/perf.c | 6 +++
tools/perf/perf.h | 1 +
tools/perf/util/dwarf-aux.c | 2 +-
7 files changed, 154 insertions(+), 3 deletions(-)
create mode 100644 tools/include/tools/config.h
create mode 100644 tools/perf/Documentation/perf-version.txt
--
2.7.4
