Messages in this thread | | | Date | Fri, 19 Jun 2020 09:15:57 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH v2 00/10] perf parse-events: enable more flex/bison warnings |
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Em Thu, Jun 18, 2020 at 09:33:46PM -0700, Ian Rogers escreveu: > All C compiler warnings are disabled are disabled by -w. This change > removes the -w from flex and bison targets. To avoid implicit > declarations header files are declared as targets and included. > > Tested with GCC 9.3.0 and clang 9.0.1. > > v2. predicates disabling the warnings on more recent bison and flex > versions (3.5.3 and 2.6.4 respectively). An alternative would be > to disabled a large number of warnings to cover the warnings > generated in older distributions: > flex_flags := -Wno-switch-enum -Wno-switch-default -Wno-unused-function \ > -Wno-redundant-decls -Wno-sign-compare -Wno-unused-parameter \ > -Wno-missing-prototypes -Wno-misleading-indentation > bison_flags := -DYYENABLE_NLS=0 -Wno-unused-parameter -Wno-nested-externs \ > -Wno-implicit-function-declaration -Wno-switch-enum
So, it is failing with older versions of alpine Linux, but then at alpine 3.8 I noticed that the problem is happening only when building with this following set of options, and when building with gcc, building with clang, i.e. adding CC=clang to the following make command line works.
+ make 'ARCH=' 'CROSS_COMPILE=' 'EXTRA_CFLAGS=' 'LIBCLANGLLVM=1' -C /git/linux/tools/perf 'O=/tmp/build/perf' make: Entering directory '/git/linux/tools/perf' BUILD: Doing 'make -j8' parallel build HOSTCC /tmp/build/perf/fixdep.o HOSTLD /tmp/build/perf/fixdep-in.o LINK /tmp/build/perf/fixdep
Auto-detecting system features: ... dwarf: [ OFF ] ... dwarf_getlocations: [ OFF ] ... glibc: [ OFF ] ... gtk2: [ on ] ... libbfd: [ on ] ... libcap: [ on ] ... libelf: [ on ] ... libnuma: [ OFF ] ... numa_num_possible_cpus: [ OFF ] ... libperl: [ on ] ... libpython: [ on ] ... libcrypto: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ OFF ] ... zlib: [ on ] ... lzma: [ on ] ... get_cpuid: [ on ] ... bpf: [ on ] ... libaio: [ on ] ... libzstd: [ on ] ... disassembler-four-args: [ on ]
Makefile.config:409: No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR Makefile.config:414: No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev Makefile.config:485: gelf_getnote() not found on libelf, SDT support disabled Makefile.config:528: DWARF support is off, BPF prologue is disabled Makefile.config:536: No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev Makefile.config:890: No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev Makefile.config:945: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev Makefile.config:971: No alternatives command found, you need to set JDIR= to point to the root of your Java directory Makefile.config:1008: No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0) GEN /tmp/build/perf/common-cmds.h sort: unrecognized option: V BusyBox v1.28.4 (2018-12-31 18:05:13 UTC) multi-call binary. PERF_VERSION = 5.7.g6f01af8176af
Usage: sort [-nrugMcszbdfiokt] [-o FILE] [-k start[.offset][opts][,end[.offset][opts]] [-t CHAR] [FILE]...
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/tmp/build/perf/util/ordered-events.o CC /tmp/build/perf/util/namespaces.o CC /tmp/build/perf/util/comm.o CC /tmp/build/perf/util/thread.o CC /tmp/build/perf/util/thread_map.o CC /tmp/build/perf/util/trace-event-parse.o FLEX /tmp/build/perf/util/parse-events-flex.h BISON /tmp/build/perf/util/pmu-bison.c CC /tmp/build/perf/util/trace-event-read.o CC /tmp/build/perf/util/trace-event-info.o CC /tmp/build/perf/util/trace-event-scripting.o CC /tmp/build/perf/util/trace-event.o CC /tmp/build/perf/util/svghelper.o CC /tmp/build/perf/util/sort.o CC /tmp/build/perf/util/hist.o CC /tmp/build/perf/util/util.o CC /tmp/build/perf/util/cpumap.o CC /tmp/build/perf/util/affinity.o CC /tmp/build/perf/util/cputopo.o CC /tmp/build/perf/util/cgroup.o CC /tmp/build/perf/util/target.o CC /tmp/build/perf/util/rblist.o CC /tmp/build/perf/util/intlist.o CC /tmp/build/perf/util/vdso.o CC /tmp/build/perf/util/counts.o CC /tmp/build/perf/util/stat.o CC /tmp/build/perf/util/stat-shadow.o CC /tmp/build/perf/util/stat-display.o CC /tmp/build/perf/util/perf_api_probe.o CC /tmp/build/perf/util/record.o CC /tmp/build/perf/util/srcline.o CC /tmp/build/perf/util/srccode.o CC /tmp/build/perf/util/synthetic-events.o CC /tmp/build/perf/util/data.o CC /tmp/build/perf/util/tsc.o CC /tmp/build/perf/util/cloexec.o CC /tmp/build/perf/util/call-path.o CC /tmp/build/perf/util/rwsem.o CC /tmp/build/perf/util/thread-stack.o CC /tmp/build/perf/util/spark.o CC /tmp/build/perf/util/auxtrace.o MKDIR /tmp/build/perf/util/intel-pt-decoder/ CC /tmp/build/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.o MKDIR /tmp/build/perf/util/intel-pt-decoder/ GEN /tmp/build/perf/util/intel-pt-decoder/inat-tables.c MKDIR /tmp/build/perf/util/arm-spe-decoder/ CC /tmp/build/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.o MKDIR /tmp/build/perf/util/scripting-engines/ CC /tmp/build/perf/util/scripting-engines/trace-event-perl.o CC /tmp/build/perf/util/intel-pt-decoder/intel-pt-log.o CC /tmp/build/perf/util/intel-pt-decoder/intel-pt-decoder.o MKDIR /tmp/build/perf/util/arm-spe-decoder/ MKDIR /tmp/build/perf/util/scripting-engines/ CC /tmp/build/perf/util/arm-spe-decoder/arm-spe-decoder.o CC /tmp/build/perf/util/scripting-engines/trace-event-python.o LD /tmp/build/perf/util/arm-spe-decoder/perf-in.o CC /tmp/build/perf/util/intel-pt.o CC /tmp/build/perf/util/intel-bts.o CC /tmp/build/perf/util/intel-pt-decoder/intel-pt-insn-decoder.o CC /tmp/build/perf/util/arm-spe.o CC /tmp/build/perf/util/s390-cpumsf.o CC /tmp/build/perf/util/parse-branch-options.o CC /tmp/build/perf/util/dump-insn.o CC /tmp/build/perf/util/parse-regs-options.o CC /tmp/build/perf/util/term.o CC /tmp/build/perf/util/help-unknown-cmd.o CC /tmp/build/perf/util/mem-events.o CC /tmp/build/perf/util/vsprintf.o CC /tmp/build/perf/util/units.o CC /tmp/build/perf/util/time-utils.o BISON /tmp/build/perf/util/expr-bison.c CC /tmp/build/perf/util/branch.o CC /tmp/build/perf/util/mem2node.o CC /tmp/build/perf/util/bpf-loader.o CC /tmp/build/perf/util/bpf_map.o LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o LD /tmp/build/perf/util/scripting-engines/perf-in.o CC /tmp/build/perf/util/symbol-elf.o CC /tmp/build/perf/util/probe-file.o CC /tmp/build/perf/util/probe-event.o CC /tmp/build/perf/util/unwind-libunwind-local.o CC /tmp/build/perf/util/unwind-libunwind.o CC /tmp/build/perf/util/zlib.o CC /tmp/build/perf/util/lzma.o CC /tmp/build/perf/util/zstd.o CC /tmp/build/perf/util/cap.o CC /tmp/build/perf/util/demangle-java.o CC /tmp/build/perf/util/demangle-rust.o CC /tmp/build/perf/util/jitdump.o CC /tmp/build/perf/util/genelf.o CC /tmp/build/perf/util/perf-hooks.o CC /tmp/build/perf/util/bpf-event.o FLEX /tmp/build/perf/util/parse-events-flex.c CC /tmp/build/perf/util/parse-events-bison.o FLEX /tmp/build/perf/util/pmu-flex.c CC /tmp/build/perf/util/pmu-bison.o FLEX /tmp/build/perf/util/expr-flex.c In file included from util/parse-events.y:20:0: /tmp/build/perf/util/parse-events-flex.h:546:0: error: unterminated #else #ifndef YY_READ_BUF_SIZE
/tmp/build/perf/util/parse-events-flex.h:545:0: error: unterminated #ifndef /* Amount of stuff to slurp up with each read. */
In file included from util/parse-events.y:20:0: /tmp/build/perf/util/parse-events-flex.h:1:0: error: unterminated #ifndef #ifndef parse_events_HEADER_H
mv: can't rename '/tmp/build/perf/util/.parse-events-bison.o.tmp': No such file or directory make[4]: *** [/git/linux/tools/build/Makefile.build:96: /tmp/build/perf/util/parse-events-bison.o] Error 1 make[4]: *** Waiting for unfinished jobs.... make[3]: *** [/git/linux/tools/build/Makefile.build:139: util] Error 2 make[2]: *** [Makefile.perf:625: /tmp/build/perf/perf-in.o] Error 2 make[1]: *** [Makefile.perf:231: sub-make] Error 2 make: *** [Makefile:70: all] Error 2 make: Leaving directory '/git/linux/tools/perf'
1 alpine:3.4 : FAIL gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final) 2 alpine:3.5 : FAIL gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final)
CC /tmp/build/perf/util/parse-events-bison.o In file included from util/parse-events.y:20:0: /tmp/build/perf/util/parse-events-flex.h:323:0: error: unterminated #ifndef #ifndef YY_DECL ^ In file included from util/parse-events.y:20:0: /tmp/build/perf/util/parse-events-flex.h:1:0: error: unterminated #ifndef #ifndef parse_events_HEADER_H ^ mv: can't rename '/tmp/build/perf/util/.parse-events-bison.o.tmp': No such file or directory /git/linux/tools/build/Makefile.build:96: recipe for target '/tmp/build/perf/util/parse-events-bison.o' failed make[4]: *** [/tmp/build/perf/util/parse-events-bison.o] Error 1 make[4]: *** Waiting for unfinished jobs.... LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o /git/linux/tools/build/Makefile.build:139: recipe for target 'util' failed
Slightly different:
3 alpine:3.6 : FAIL gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final)
CC /tmp/build/perf/util/perf-hooks.o FLEX /tmp/build/perf/util/parse-events-flex.c CC /tmp/build/perf/util/parse-events-bison.o FLEX /tmp/build/perf/util/pmu-flex.c In file included from util/parse-events.y:20:0: /tmp/build/perf/util/parse-events-flex.h:1:0: error: unterminated #ifndef #ifndef parse_events_HEADER_H mv: can't rename '/tmp/build/perf/util/.parse-events-bison.o.tmp': No such file or directory make[4]: *** [/git/linux/tools/build/Makefile.build:97: /tmp/build/perf/util/parse-events-bison.o] Error 1 make[4]: *** Waiting for unfinished jobs....
4 alpine:3.7 : FAIL gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0)
CC /tmp/build/perf/util/pmu-bison.o In file included from util/parse-events.y:20:0: /tmp/build/perf/util/parse-events-flex.h:546:0: error: unterminated #else #ifndef YY_READ_BUF_SIZE
/tmp/build/perf/util/parse-events-flex.h:545:0: error: unterminated #ifndef /* Amount of stuff to slurp up with each read. */
In file included from util/parse-events.y:20:0: /tmp/build/perf/util/parse-events-flex.h:1:0: error: unterminated #ifndef #ifndef parse_events_HEADER_H
FLEX /tmp/build/perf/util/expr-flex.c mv: can't rename '/tmp/build/perf/util/.parse-events-bison.o.tmp': No such file or directory make[4]: *** [/git/linux/tools/build/Makefile.build:96: /tmp/build/perf/util/parse-events-bison.o] Error 1
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