On Thu, Nov 4, 2021 at 10:38 AM Arnaldo Carvalho de Melo
<[email protected]> wrote:
>
>
> Hi Song,
>
cc Quentin as well, might be related to recent Makefiles revamp for
users of libbpf. But in bpf-next perf builds perfectly fine, so not
sure.
> I just did a merge with upstream and I'm getting this:
>
> LINK /tmp/build/perf/plugins/plugin_scsi.so
> INSTALL trace_plugins
>
> Auto-detecting system features:
> ... libbfd: [ on ]
> ... disassembler-four-args: [ on ]
> ... zlib: [ on ]
> ... libcap: [ on ]
> ... clang-bpf-co-re: [ on ]
>
>
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//libbpf//include/bpf
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/
> INSTALL /tmp/build/perf/util/bpf_skel/.tmp//libbpf//include/bpf/hashmap.h
> INSTALL /tmp/build/perf/util/bpf_skel/.tmp//libbpf//include/bpf/nlattr.h
> GEN /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/bpf_helper_defs.h
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf_probes.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/xsk.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/bpf.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/nlattr.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/btf.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf_errno.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/hashmap.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/str_error.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/netlink.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/btf_dump.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/bpf_prog_linfo.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/ringbuf.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/strset.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/linker.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/gen_loader.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/relo_core.o
> LD /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf-in.o
> LINK /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/libbpf.a
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/main.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/common.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/gen.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/json_writer.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/xlated_dumper.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf_dumper.o
> CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/disasm.o
> gen.c:15:10: fatal error: bpf/bpf.h: No such file or directory
> 15 | #include <bpf/bpf.h>
> | ^~~~~~~~~~~
> compilation terminated.
> make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/gen.o] Error 1
> make[3]: *** Waiting for unfinished jobs....
> xlated_dumper.c:10:10: fatal error: bpf/libbpf.h: No such file or directory
> 10 | #include <bpf/libbpf.h>
> | ^~~~~~~~~~~~~~
> compilation terminated.
> btf.c:15:10: fatal error: bpf/bpf.h: No such file or directory
> 15 | #include <bpf/bpf.h>
> | ^~~~~~~~~~~
> compilation terminated.
> make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/xlated_dumper.o] Error 1
> make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf.o] Error 1
> main.c:12:10: fatal error: bpf/bpf.h: No such file or directory
> 12 | #include <bpf/bpf.h>
> | ^~~~~~~~~~~
> compilation terminated.
> make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/main.o] Error 1
> btf_dumper.c:12:10: fatal error: bpf/btf.h: No such file or directory
> 12 | #include <bpf/btf.h>
> | ^~~~~~~~~~~
> compilation terminated.
> make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf_dumper.o] Error 1
> common.c:24:10: fatal error: bpf/bpf.h: No such file or directory
> 24 | #include <bpf/bpf.h>
> | ^~~~~~~~~~~
> compilation terminated.
> make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/common.o] Error 1
> make[2]: *** [Makefile.perf:1048: /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/bpftool] Error 2
> make[1]: *** [Makefile.perf:240: sub-make] Error 2
> make: *** [Makefile:113: install-bin] Error 2
> make: Leaving directory '/var/home/acme/git/perf/tools/perf'
>
> Performance counter stats for 'make -k BUILD_BPF_SKEL=1 CORESIGHT=1 PYTHON=python3 O=/tmp/build/perf -C tools/perf install-bin':
>
> 6,965.78 msec task-clock:u # 1.492 CPUs utilized
> 6,937.93 msec cpu-clock:u # 1.486 CPUs utilized
>
> 4.669198336 seconds time elapsed
>
> 4.015978000 seconds user
> 3.202660000 seconds sys
>
>
> 70: Event expansion for cgroups : Ok
> 88: perf all metricgroups test : FAILED!
> ⬢[acme@toolbox perf]$ find tools/ -name bpf.h
> tools/include/uapi/linux/bpf.h
> tools/lib/bpf/bpf.h
> tools/perf/include/bpf/bpf.h
> ⬢[acme@toolbox perf]$ find tools/ -name libbpf.h
> tools/lib/bpf/libbpf.h
> ⬢[acme@toolbox perf]$ find tools/perf/ -name gen.c
> ⬢[acme@toolbox perf]$
>
> Before the merge, with pristine sources I wasn't getting this,
> investigating now.
>
> ⬢[acme@toolbox perf]$ git show HEAD
> commit e1498f18537a1639963370a4635c6fb99e7d672b (HEAD -> perf/core)
> Merge: 32f7aa2731b24ad8 abfecb39092029c4
> Author: Arnaldo Carvalho de Melo <[email protected]>
> Date: Thu Nov 4 14:32:11 2021 -0300
>
> Merge remote-tracking branch 'torvalds/master' into perf/core
>
> To pick up some tools/perf/ patches that went via tip/perf/core, such
> as:
>
> tools/perf: Add mem_hops field in perf_mem_data_src structure
>
> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
>
> ⬢[acme@toolbox perf]$
>
> ⬢[acme@toolbox perf]$ git log --oneline -10 torvalds/master
> abfecb39092029c4 (torvalds/master) Merge tag 'tty-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
> 95faf6ba654dd334 Merge tag 'driver-core-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
> 5c904c66ed4e86c3 Merge tag 'char-misc-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
> 5cd4dc44b8a0f656 Merge tag 'staging-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
> 048ff8629e117d84 Merge tag 'usb-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
> 7ddb58cb0ecae8e8 Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
> ce840177930f591a Merge tag 'defconfig-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> d461e96cd22b5aeb Merge tag 'drivers-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> ae45d84fc36d01dc Merge tag 'dt-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> 2219b0ceefe835b9 Merge tag 'soc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> ⬢[acme@toolbox perf]$
>
> - Arnaldo
Em Thu, Nov 04, 2021 at 10:47:12AM -0700, Andrii Nakryiko escreveu:
> On Thu, Nov 4, 2021 at 10:38 AM Arnaldo Carvalho de Melo
> <[email protected]> wrote:
> >
> >
> > Hi Song,
> >
>
> cc Quentin as well, might be related to recent Makefiles revamp for
> users of libbpf. But in bpf-next perf builds perfectly fine, so not
> sure.
This did the trick:
⬢[acme@toolbox perf]$ git show
commit 504afe6757ec646539ca3b4aa0431820e8c92b45 (HEAD -> perf/core)
Author: Arnaldo Carvalho de Melo <[email protected]>
Date: Thu Nov 4 14:58:56 2021 -0300
Revert "bpftool: Remove Makefile dep. on $(LIBBPF) for $(LIBBPF_INTERNAL_HDRS)"
This reverts commit 8b6c46241c774c83998092a4eafe40f054568881.
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index c0c30e56988f2cbe..c5ad996ee95d4e87 100644
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -39,14 +39,14 @@ ifeq ($(BPFTOOL_VERSION),)
BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion)
endif
-$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT) $(LIBBPF_HDRS_DIR):
+$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT):
$(QUIET_MKDIR)mkdir -p $@
$(LIBBPF): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_OUTPUT)
$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) \
DESTDIR=$(LIBBPF_DESTDIR) prefix= $(LIBBPF) install_headers
-$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_HDRS_DIR)
+$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h $(LIBBPF)
$(call QUIET_INSTALL, $@)
$(Q)install -m 644 -t $(LIBBPF_HDRS_DIR) $<
⬢[acme@toolbox perf]$
> > I just did a merge with upstream and I'm getting this:
> >
> > LINK /tmp/build/perf/plugins/plugin_scsi.so
> > INSTALL trace_plugins
> >
> > Auto-detecting system features:
> > ... libbfd: [ on ]
> > ... disassembler-four-args: [ on ]
> > ... zlib: [ on ]
> > ... libcap: [ on ]
> > ... clang-bpf-co-re: [ on ]
> >
> >
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//libbpf//include/bpf
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/
> > INSTALL /tmp/build/perf/util/bpf_skel/.tmp//libbpf//include/bpf/hashmap.h
> > INSTALL /tmp/build/perf/util/bpf_skel/.tmp//libbpf//include/bpf/nlattr.h
> > GEN /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/bpf_helper_defs.h
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf_probes.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/xsk.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/bpf.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/nlattr.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/btf.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf_errno.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/hashmap.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/str_error.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/netlink.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/btf_dump.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/bpf_prog_linfo.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/ringbuf.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/strset.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/linker.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/gen_loader.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/relo_core.o
> > LD /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf-in.o
> > LINK /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/libbpf.a
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/main.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/common.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/gen.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/json_writer.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/xlated_dumper.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf_dumper.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/disasm.o
> > gen.c:15:10: fatal error: bpf/bpf.h: No such file or directory
> > 15 | #include <bpf/bpf.h>
> > | ^~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/gen.o] Error 1
> > make[3]: *** Waiting for unfinished jobs....
> > xlated_dumper.c:10:10: fatal error: bpf/libbpf.h: No such file or directory
> > 10 | #include <bpf/libbpf.h>
> > | ^~~~~~~~~~~~~~
> > compilation terminated.
> > btf.c:15:10: fatal error: bpf/bpf.h: No such file or directory
> > 15 | #include <bpf/bpf.h>
> > | ^~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/xlated_dumper.o] Error 1
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf.o] Error 1
> > main.c:12:10: fatal error: bpf/bpf.h: No such file or directory
> > 12 | #include <bpf/bpf.h>
> > | ^~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/main.o] Error 1
> > btf_dumper.c:12:10: fatal error: bpf/btf.h: No such file or directory
> > 12 | #include <bpf/btf.h>
> > | ^~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf_dumper.o] Error 1
> > common.c:24:10: fatal error: bpf/bpf.h: No such file or directory
> > 24 | #include <bpf/bpf.h>
> > | ^~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/common.o] Error 1
> > make[2]: *** [Makefile.perf:1048: /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/bpftool] Error 2
> > make[1]: *** [Makefile.perf:240: sub-make] Error 2
> > make: *** [Makefile:113: install-bin] Error 2
> > make: Leaving directory '/var/home/acme/git/perf/tools/perf'
> >
> > Performance counter stats for 'make -k BUILD_BPF_SKEL=1 CORESIGHT=1 PYTHON=python3 O=/tmp/build/perf -C tools/perf install-bin':
> >
> > 6,965.78 msec task-clock:u # 1.492 CPUs utilized
> > 6,937.93 msec cpu-clock:u # 1.486 CPUs utilized
> >
> > 4.669198336 seconds time elapsed
> >
> > 4.015978000 seconds user
> > 3.202660000 seconds sys
> >
> >
> > 70: Event expansion for cgroups : Ok
> > 88: perf all metricgroups test : FAILED!
> > ⬢[acme@toolbox perf]$ find tools/ -name bpf.h
> > tools/include/uapi/linux/bpf.h
> > tools/lib/bpf/bpf.h
> > tools/perf/include/bpf/bpf.h
> > ⬢[acme@toolbox perf]$ find tools/ -name libbpf.h
> > tools/lib/bpf/libbpf.h
> > ⬢[acme@toolbox perf]$ find tools/perf/ -name gen.c
> > ⬢[acme@toolbox perf]$
> >
> > Before the merge, with pristine sources I wasn't getting this,
> > investigating now.
> >
> > ⬢[acme@toolbox perf]$ git show HEAD
> > commit e1498f18537a1639963370a4635c6fb99e7d672b (HEAD -> perf/core)
> > Merge: 32f7aa2731b24ad8 abfecb39092029c4
> > Author: Arnaldo Carvalho de Melo <[email protected]>
> > Date: Thu Nov 4 14:32:11 2021 -0300
> >
> > Merge remote-tracking branch 'torvalds/master' into perf/core
> >
> > To pick up some tools/perf/ patches that went via tip/perf/core, such
> > as:
> >
> > tools/perf: Add mem_hops field in perf_mem_data_src structure
> >
> > Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
> >
> > ⬢[acme@toolbox perf]$
> >
> > ⬢[acme@toolbox perf]$ git log --oneline -10 torvalds/master
> > abfecb39092029c4 (torvalds/master) Merge tag 'tty-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
> > 95faf6ba654dd334 Merge tag 'driver-core-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
> > 5c904c66ed4e86c3 Merge tag 'char-misc-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
> > 5cd4dc44b8a0f656 Merge tag 'staging-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
> > 048ff8629e117d84 Merge tag 'usb-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
> > 7ddb58cb0ecae8e8 Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
> > ce840177930f591a Merge tag 'defconfig-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> > d461e96cd22b5aeb Merge tag 'drivers-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> > ae45d84fc36d01dc Merge tag 'dt-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> > 2219b0ceefe835b9 Merge tag 'soc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> > ⬢[acme@toolbox perf]$
> >
> > - Arnaldo
--
- Arnaldo
Em Thu, Nov 04, 2021 at 10:47:12AM -0700, Andrii Nakryiko escreveu:
> On Thu, Nov 4, 2021 at 10:38 AM Arnaldo Carvalho de Melo <[email protected]> wrote:
> cc Quentin as well, might be related to recent Makefiles revamp for
> users of libbpf. But in bpf-next perf builds perfectly fine, so not
> sure.
You have to use:
make BUILD_BPF_SKEL=1 O=/tmp/build/perf -C tools/perf install-bin
Song, I think its time we make BUILD_BPF_SKEL=1 the default, wdyt?
- Arnaldo
> > I just did a merge with upstream and I'm getting this:
> >
> > LINK /tmp/build/perf/plugins/plugin_scsi.so
> > INSTALL trace_plugins
> >
> > Auto-detecting system features:
> > ... libbfd: [ on ]
> > ... disassembler-four-args: [ on ]
> > ... zlib: [ on ]
> > ... libcap: [ on ]
> > ... clang-bpf-co-re: [ on ]
> >
> >
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//libbpf//include/bpf
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/
> > INSTALL /tmp/build/perf/util/bpf_skel/.tmp//libbpf//include/bpf/hashmap.h
> > INSTALL /tmp/build/perf/util/bpf_skel/.tmp//libbpf//include/bpf/nlattr.h
> > GEN /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/bpf_helper_defs.h
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf_probes.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/xsk.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/bpf.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/nlattr.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/btf.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf_errno.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/hashmap.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/str_error.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/netlink.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/btf_dump.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/bpf_prog_linfo.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/ringbuf.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/strset.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/linker.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/gen_loader.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/relo_core.o
> > LD /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf-in.o
> > LINK /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/libbpf.a
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/main.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/common.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/gen.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/json_writer.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/xlated_dumper.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf_dumper.o
> > CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/disasm.o
> > gen.c:15:10: fatal error: bpf/bpf.h: No such file or directory
> > 15 | #include <bpf/bpf.h>
> > | ^~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/gen.o] Error 1
> > make[3]: *** Waiting for unfinished jobs....
> > xlated_dumper.c:10:10: fatal error: bpf/libbpf.h: No such file or directory
> > 10 | #include <bpf/libbpf.h>
> > | ^~~~~~~~~~~~~~
> > compilation terminated.
> > btf.c:15:10: fatal error: bpf/bpf.h: No such file or directory
> > 15 | #include <bpf/bpf.h>
> > | ^~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/xlated_dumper.o] Error 1
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf.o] Error 1
> > main.c:12:10: fatal error: bpf/bpf.h: No such file or directory
> > 12 | #include <bpf/bpf.h>
> > | ^~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/main.o] Error 1
> > btf_dumper.c:12:10: fatal error: bpf/btf.h: No such file or directory
> > 12 | #include <bpf/btf.h>
> > | ^~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf_dumper.o] Error 1
> > common.c:24:10: fatal error: bpf/bpf.h: No such file or directory
> > 24 | #include <bpf/bpf.h>
> > | ^~~~~~~~~~~
> > compilation terminated.
> > make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/common.o] Error 1
> > make[2]: *** [Makefile.perf:1048: /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/bpftool] Error 2
> > make[1]: *** [Makefile.perf:240: sub-make] Error 2
> > make: *** [Makefile:113: install-bin] Error 2
> > make: Leaving directory '/var/home/acme/git/perf/tools/perf'
> >
> > Performance counter stats for 'make -k BUILD_BPF_SKEL=1 CORESIGHT=1 PYTHON=python3 O=/tmp/build/perf -C tools/perf install-bin':
> >
> > 6,965.78 msec task-clock:u # 1.492 CPUs utilized
> > 6,937.93 msec cpu-clock:u # 1.486 CPUs utilized
> >
> > 4.669198336 seconds time elapsed
> >
> > 4.015978000 seconds user
> > 3.202660000 seconds sys
> >
> >
> > 70: Event expansion for cgroups : Ok
> > 88: perf all metricgroups test : FAILED!
> > ⬢[acme@toolbox perf]$ find tools/ -name bpf.h
> > tools/include/uapi/linux/bpf.h
> > tools/lib/bpf/bpf.h
> > tools/perf/include/bpf/bpf.h
> > ⬢[acme@toolbox perf]$ find tools/ -name libbpf.h
> > tools/lib/bpf/libbpf.h
> > ⬢[acme@toolbox perf]$ find tools/perf/ -name gen.c
> > ⬢[acme@toolbox perf]$
> >
> > Before the merge, with pristine sources I wasn't getting this,
> > investigating now.
> >
> > ⬢[acme@toolbox perf]$ git show HEAD
> > commit e1498f18537a1639963370a4635c6fb99e7d672b (HEAD -> perf/core)
> > Merge: 32f7aa2731b24ad8 abfecb39092029c4
> > Author: Arnaldo Carvalho de Melo <[email protected]>
> > Date: Thu Nov 4 14:32:11 2021 -0300
> >
> > Merge remote-tracking branch 'torvalds/master' into perf/core
> >
> > To pick up some tools/perf/ patches that went via tip/perf/core, such
> > as:
> >
> > tools/perf: Add mem_hops field in perf_mem_data_src structure
> >
> > Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
> >
> > ⬢[acme@toolbox perf]$
> >
> > ⬢[acme@toolbox perf]$ git log --oneline -10 torvalds/master
> > abfecb39092029c4 (torvalds/master) Merge tag 'tty-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
> > 95faf6ba654dd334 Merge tag 'driver-core-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
> > 5c904c66ed4e86c3 Merge tag 'char-misc-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
> > 5cd4dc44b8a0f656 Merge tag 'staging-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
> > 048ff8629e117d84 Merge tag 'usb-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
> > 7ddb58cb0ecae8e8 Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
> > ce840177930f591a Merge tag 'defconfig-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> > d461e96cd22b5aeb Merge tag 'drivers-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> > ae45d84fc36d01dc Merge tag 'dt-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> > 2219b0ceefe835b9 Merge tag 'soc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> > ⬢[acme@toolbox perf]$
> >
> > - Arnaldo
--
- Arnaldo
2021-11-04 15:09 UTC-0300 ~ Arnaldo Carvalho de Melo <[email protected]>
> Em Thu, Nov 04, 2021 at 10:47:12AM -0700, Andrii Nakryiko escreveu:
>> On Thu, Nov 4, 2021 at 10:38 AM Arnaldo Carvalho de Melo
>> <[email protected]> wrote:
>>>
>>>
>>> Hi Song,
>>>
>>
>> cc Quentin as well, might be related to recent Makefiles revamp for
>> users of libbpf. But in bpf-next perf builds perfectly fine, so not
>> sure.
>
> This did the trick:
>
> ⬢[acme@toolbox perf]$ git show
> commit 504afe6757ec646539ca3b4aa0431820e8c92b45 (HEAD -> perf/core)
> Author: Arnaldo Carvalho de Melo <[email protected]>
> Date: Thu Nov 4 14:58:56 2021 -0300
>
> Revert "bpftool: Remove Makefile dep. on $(LIBBPF) for $(LIBBPF_INTERNAL_HDRS)"
>
> This reverts commit 8b6c46241c774c83998092a4eafe40f054568881.
>
> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
>
> diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
> index c0c30e56988f2cbe..c5ad996ee95d4e87 100644
> --- a/tools/bpf/bpftool/Makefile
> +++ b/tools/bpf/bpftool/Makefile
> @@ -39,14 +39,14 @@ ifeq ($(BPFTOOL_VERSION),)
> BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion)
> endif
>
> -$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT) $(LIBBPF_HDRS_DIR):
> +$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT):
> $(QUIET_MKDIR)mkdir -p $@
>
> $(LIBBPF): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_OUTPUT)
> $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) \
> DESTDIR=$(LIBBPF_DESTDIR) prefix= $(LIBBPF) install_headers
>
> -$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_HDRS_DIR)
> +$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h $(LIBBPF)
> $(call QUIET_INSTALL, $@)
> $(Q)install -m 644 -t $(LIBBPF_HDRS_DIR) $<
Interesting. I needed that patch because otherwise I'd get errors when
compiling bpftool after the switch to libbpf's hashmap implementation.
For the current breakage, it could be a matter of how we pass variables
when descending into bpftool/ from perf's Makefile.perf. I'll try to
look at this in details, and to experiment tonight, if I can. (Thanks
Andrii for the CC!)
Thanks,
Quentin
Em Thu, Nov 04, 2021 at 06:15:57PM +0000, Quentin Monnet escreveu:
> 2021-11-04 15:09 UTC-0300 ~ Arnaldo Carvalho de Melo <[email protected]>
> > Em Thu, Nov 04, 2021 at 10:47:12AM -0700, Andrii Nakryiko escreveu:
> >> On Thu, Nov 4, 2021 at 10:38 AM Arnaldo Carvalho de Melo
> >> <[email protected]> wrote:
> >>>
> >>>
> >>> Hi Song,
> >>>
> >>
> >> cc Quentin as well, might be related to recent Makefiles revamp for
> >> users of libbpf. But in bpf-next perf builds perfectly fine, so not
> >> sure.
> >
> > This did the trick:
> >
> > ⬢[acme@toolbox perf]$ git show
> > commit 504afe6757ec646539ca3b4aa0431820e8c92b45 (HEAD -> perf/core)
> > Author: Arnaldo Carvalho de Melo <[email protected]>
> > Date: Thu Nov 4 14:58:56 2021 -0300
> >
> > Revert "bpftool: Remove Makefile dep. on $(LIBBPF) for $(LIBBPF_INTERNAL_HDRS)"
> >
> > This reverts commit 8b6c46241c774c83998092a4eafe40f054568881.
> >
> > Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
> >
> > diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
> > index c0c30e56988f2cbe..c5ad996ee95d4e87 100644
> > --- a/tools/bpf/bpftool/Makefile
> > +++ b/tools/bpf/bpftool/Makefile
> > @@ -39,14 +39,14 @@ ifeq ($(BPFTOOL_VERSION),)
> > BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion)
> > endif
> >
> > -$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT) $(LIBBPF_HDRS_DIR):
> > +$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT):
> > $(QUIET_MKDIR)mkdir -p $@
> >
> > $(LIBBPF): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_OUTPUT)
> > $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) \
> > DESTDIR=$(LIBBPF_DESTDIR) prefix= $(LIBBPF) install_headers
> >
> > -$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_HDRS_DIR)
> > +$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h $(LIBBPF)
> > $(call QUIET_INSTALL, $@)
> > $(Q)install -m 644 -t $(LIBBPF_HDRS_DIR) $<
>
>
> Interesting. I needed that patch because otherwise I'd get errors when
> compiling bpftool after the switch to libbpf's hashmap implementation.
> For the current breakage, it could be a matter of how we pass variables
> when descending into bpftool/ from perf's Makefile.perf. I'll try to
> look at this in details, and to experiment tonight, if I can. (Thanks
> Andrii for the CC!)
yeah, if we pass the location for those headers from the perf side, it
should work.
Extra info: if libbpf-devel is installed, it "builds", well, built
before the merge, as the one available for fedora 34 is:
libbpf-devel-2:0.4.0-1.fc34.x86_64
after installing it, on the merged tree, with the above revert, I get:
CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/disasm.o
btf.c: In function ‘dump_btf_type’:
btf.c:328:47: warning: implicit declaration of function ‘btf__type_cnt’ [-Wimplicit-function-declaration]
328 | if (v->type < btf__type_cnt(btf)) {
| ^~~~~~~~~~~~~
btf.c:328:45: warning: comparison of integer expressions of different signedness: ‘__u32’ {aka ‘unsigned int’} and ‘int’ [-Wsign-compare]
328 | if (v->type < btf__type_cnt(btf)) {
| ^
btf.c: In function ‘do_dump’:
btf.c:591:23: warning: implicit declaration of function ‘btf__load_from_kernel_by_id_split’ [-Wimplicit-function-declaration]
591 | btf = btf__load_from_kernel_by_id_split(btf_id, base_btf);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
btf.c:591:21: warning: assignment to ‘struct btf *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
591 | btf = btf__load_from_kernel_by_id_split(btf_id, base_btf);
| ^
btf_dumper.c: In function ‘dump_prog_id_as_func_ptr’:
btf_dumper.c:69:20: warning: implicit declaration of function ‘btf__load_from_kernel_by_id’ [-Wimplicit-function-declaration]
69 | prog_btf = btf__load_from_kernel_by_id(info->btf_id);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
btf_dumper.c:69:18: warning: assignment to ‘struct btf *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
69 | prog_btf = btf__load_from_kernel_by_id(info->btf_id);
| ^
LINK /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/bpftool
If I revert the above revert I get a more catastrophic breakage:
CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/disasm.o
btf.c: In function ‘dump_btf_type’:
btf.c:328:47: warning: implicit declaration of function ‘btf__type_cnt’ [-Wimplicit-function-declaration]
328 | if (v->type < btf__type_cnt(btf)) {
| ^~~~~~~~~~~~~
btf.c:328:45: warning: comparison of integer expressions of different signedness: ‘__u32’ {aka ‘unsigned int’} and ‘int’ [-Wsign-compare]
328 | if (v->type < btf__type_cnt(btf)) {
| ^
btf.c: In function ‘do_dump’:
btf.c:591:23: warning: implicit declaration of function ‘btf__load_from_kernel_by_id_split’ [-Wimplicit-function-declaration]
591 | btf = btf__load_from_kernel_by_id_split(btf_id, base_btf);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
btf.c:591:21: warning: assignment to ‘struct btf *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
591 | btf = btf__load_from_kernel_by_id_split(btf_id, base_btf);
| ^
btf_dumper.c: In function ‘dump_prog_id_as_func_ptr’:
btf_dumper.c:69:20: warning: implicit declaration of function ‘btf__load_from_kernel_by_id’ [-Wimplicit-function-declaration]
69 | prog_btf = btf__load_from_kernel_by_id(info->btf_id);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
btf_dumper.c:69:18: warning: assignment to ‘struct btf *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
69 | prog_btf = btf__load_from_kernel_by_id(info->btf_id);
| ^
gen.c: In function ‘codegen_datasecs’:
gen.c:214:17: warning: implicit declaration of function ‘btf__type_cnt’ [-Wimplicit-function-declaration]
214 | int n = btf__type_cnt(btf);
| ^~~~~~~~~~~~~
In file included from /usr/include/bpf/bpf.h:31,
from gen.c:15:
gen.c: In function ‘gen_trace’:
gen.c:489:29: error: variable ‘opts’ has initializer but incomplete type
489 | DECLARE_LIBBPF_OPTS(gen_loader_opts, opts);
| ^~~~~~~~~~~~~~~
gen.c:489:9: error: invalid application of ‘sizeof’ to incomplete type ‘struct gen_loader_opts’
489 | DECLARE_LIBBPF_OPTS(gen_loader_opts, opts);
| ^~~~~~~~~~~~~~~~~~~
gen.c:489:9: error: ‘struct gen_loader_opts’ has no member named ‘sz’
489 | DECLARE_LIBBPF_OPTS(gen_loader_opts, opts);
| ^~~~~~~~~~~~~~~~~~~
gen.c:489:9: error: invalid application of ‘sizeof’ to incomplete type ‘struct gen_loader_opts’
489 | DECLARE_LIBBPF_OPTS(gen_loader_opts, opts);
| ^~~~~~~~~~~~~~~~~~~
gen.c:489:9: warning: excess elements in struct initializer
489 | DECLARE_LIBBPF_OPTS(gen_loader_opts, opts);
| ^~~~~~~~~~~~~~~~~~~
gen.c:489:9: note: (near initialization for ‘(anonymous)’)
In file included from /usr/include/bpf/bpf.h:31,
from gen.c:15:
gen.c:489:9: error: invalid use of undefined type ‘struct gen_loader_opts’
489 | DECLARE_LIBBPF_OPTS(gen_loader_opts, opts);
| ^~~~~~~~~~~~~~~~~~~
gen.c:489:46: error: storage size of ‘opts’ isn’t known
489 | DECLARE_LIBBPF_OPTS(gen_loader_opts, opts);
| ^~~~
gen.c:494:15: warning: implicit declaration of function ‘bpf_object__gen_loader’; did you mean ‘bpf_object__unload’? [-Wimplicit-function-declaration]
494 | err = bpf_object__gen_loader(obj, &opts);
| ^~~~~~~~~~~~~~~~~~~~~~
| bpf_object__unload
gen.c:556:29: warning: implicit declaration of function ‘bpf_map__initial_value’; did you mean ‘bpf_map__set_initial_value’? [-Wimplicit-function-declaration]
556 | mmap_data = bpf_map__initial_value(map, &mmap_size);
| ^~~~~~~~~~~~~~~~~~~~~~
| bpf_map__set_initial_value
gen.c:556:27: warning: assignment to ‘const void *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
556 | mmap_data = bpf_map__initial_value(map, &mmap_size);
| ^
make[3]: *** [Makefile:213: /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/gen.o] Error 1
make[2]: *** [Makefile.perf:1048: /tmp/build/perf/util/bpf_skel/.tmp/bootstrap/bpftool] Error 2
make[1]: *** [Makefile.perf:240: sub-make] Error 2
make: *** [Makefile:113: install-bin] Error 2
make: Leaving directory '/var/home/acme/git/perf/tools/perf'
Performance counter stats for 'make -k BUILD_BPF_SKEL=1 CORESIGHT=1 PYTHON=python3 O=/tmp/build/perf -C tools/perf install-bin':
7,103.73 msec task-clock:u # 1.476 CPUs utilized
7,074.44 msec cpu-clock:u # 1.469 CPUs utilized
4.814384825 seconds time elapsed
3.917534000 seconds user
3.433976000 seconds sys
70: Event expansion for cgroups : Ok
88: perf all metricgroups test : FAILED!
⬢[acme@toolbox perf]$
Kinda expected, as its an old libbpf version, the one in fedora 34. I'll
remove it, and try to fix it on the perf side, i.e. telling where to
find bpf/bpf.h, bpf/libbpf.h.
- Arnaldo
Em Thu, Nov 04, 2021 at 05:15:20PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Thu, Nov 04, 2021 at 06:15:57PM +0000, Quentin Monnet escreveu:
> > 2021-11-04 15:09 UTC-0300 ~ Arnaldo Carvalho de Melo <[email protected]>
> > > Em Thu, Nov 04, 2021 at 10:47:12AM -0700, Andrii Nakryiko escreveu:
> > >> On Thu, Nov 4, 2021 at 10:38 AM Arnaldo Carvalho de Melo <[email protected]> wrote:
> > >> cc Quentin as well, might be related to recent Makefiles revamp for
> > >> users of libbpf. But in bpf-next perf builds perfectly fine, so not
> > >> sure.
> > > This did the trick:
> > > ⬢[acme@toolbox perf]$ git show
> > > commit 504afe6757ec646539ca3b4aa0431820e8c92b45 (HEAD -> perf/core)
> > > Author: Arnaldo Carvalho de Melo <[email protected]>
> > > Date: Thu Nov 4 14:58:56 2021 -0300
> > > Revert "bpftool: Remove Makefile dep. on $(LIBBPF) for $(LIBBPF_INTERNAL_HDRS)"
> > > This reverts commit 8b6c46241c774c83998092a4eafe40f054568881.
> > > Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
> > > diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
> > > index c0c30e56988f2cbe..c5ad996ee95d4e87 100644
> > > --- a/tools/bpf/bpftool/Makefile
> > > +++ b/tools/bpf/bpftool/Makefile
> > > @@ -39,14 +39,14 @@ ifeq ($(BPFTOOL_VERSION),)
> > > BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion)
> > > endif
> > > -$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT) $(LIBBPF_HDRS_DIR):
> > > +$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT):
> > > $(QUIET_MKDIR)mkdir -p $@
> > > $(LIBBPF): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_OUTPUT)
> > > $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) \
> > > DESTDIR=$(LIBBPF_DESTDIR) prefix= $(LIBBPF) install_headers
> > > -$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_HDRS_DIR)
> > > +$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h $(LIBBPF)
> > > $(call QUIET_INSTALL, $@)
> > > $(Q)install -m 644 -t $(LIBBPF_HDRS_DIR) $<
> > Interesting. I needed that patch because otherwise I'd get errors when
> > compiling bpftool after the switch to libbpf's hashmap implementation.
> > For the current breakage, it could be a matter of how we pass variables
> > when descending into bpftool/ from perf's Makefile.perf. I'll try to
> > look at this in details, and to experiment tonight, if I can. (Thanks
> > Andrii for the CC!)
> yeah, if we pass the location for those headers from the perf side, it
> should work.
But it isn't obvious how perf should communicate to bpftool where to
find bpf/bpf.h for the bootstrap make target, which seems something
bpftool should know.
Anyway, I'm calling it a day, will get back to this tomorrow, if you
don't beat me to it.
- Arnaldo
2021-11-04 17:45 UTC-0300 ~ Arnaldo Carvalho de Melo <[email protected]>
> Em Thu, Nov 04, 2021 at 05:15:20PM -0300, Arnaldo Carvalho de Melo escreveu:
>> Em Thu, Nov 04, 2021 at 06:15:57PM +0000, Quentin Monnet escreveu:
>>> 2021-11-04 15:09 UTC-0300 ~ Arnaldo Carvalho de Melo <[email protected]>
>>>> Em Thu, Nov 04, 2021 at 10:47:12AM -0700, Andrii Nakryiko escreveu:
>>>>> On Thu, Nov 4, 2021 at 10:38 AM Arnaldo Carvalho de Melo <[email protected]> wrote:
>>>>> cc Quentin as well, might be related to recent Makefiles revamp for
>>>>> users of libbpf. But in bpf-next perf builds perfectly fine, so not
>>>>> sure.
>
>>>> This did the trick:
>
>>>> ⬢[acme@toolbox perf]$ git show
>>>> commit 504afe6757ec646539ca3b4aa0431820e8c92b45 (HEAD -> perf/core)
>>>> Author: Arnaldo Carvalho de Melo <[email protected]>
>>>> Date: Thu Nov 4 14:58:56 2021 -0300
>
>>>> Revert "bpftool: Remove Makefile dep. on $(LIBBPF) for $(LIBBPF_INTERNAL_HDRS)"
>
>>>> This reverts commit 8b6c46241c774c83998092a4eafe40f054568881.
>
>>>> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
>
>>>> diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
>>>> index c0c30e56988f2cbe..c5ad996ee95d4e87 100644
>>>> --- a/tools/bpf/bpftool/Makefile
>>>> +++ b/tools/bpf/bpftool/Makefile
>>>> @@ -39,14 +39,14 @@ ifeq ($(BPFTOOL_VERSION),)
>>>> BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion)
>>>> endif
>
>>>> -$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT) $(LIBBPF_HDRS_DIR):
>>>> +$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT):
>>>> $(QUIET_MKDIR)mkdir -p $@
>
>>>> $(LIBBPF): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_OUTPUT)
>>>> $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) \
>>>> DESTDIR=$(LIBBPF_DESTDIR) prefix= $(LIBBPF) install_headers
>
>>>> -$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_HDRS_DIR)
>>>> +$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h $(LIBBPF)
>>>> $(call QUIET_INSTALL, $@)
>>>> $(Q)install -m 644 -t $(LIBBPF_HDRS_DIR) $<
>
>>> Interesting. I needed that patch because otherwise I'd get errors when
>>> compiling bpftool after the switch to libbpf's hashmap implementation.
>>> For the current breakage, it could be a matter of how we pass variables
>>> when descending into bpftool/ from perf's Makefile.perf. I'll try to
>>> look at this in details, and to experiment tonight, if I can. (Thanks
>>> Andrii for the CC!)
>
>> yeah, if we pass the location for those headers from the perf side, it
>> should work.
>
> But it isn't obvious how perf should communicate to bpftool where to
> find bpf/bpf.h for the bootstrap make target, which seems something
> bpftool should know.
>
> Anyway, I'm calling it a day, will get back to this tomorrow, if you
> don't beat me to it.
Found it. The issue is on bpftool's side.
Background context: I've recently changed the way that bpftool (and
other tools) include libbpf's headers: now they "install" the API
headers locally, instead of including them directly from libbpf's source
directory. Looks like I forgot perf's Makefile in the process by the
way, I've sent a patch to address this (but this is not the cause of the
breakage).
For bpftool, we need to build two versions of libbpf, the bootstrap
version (for bootstrap bpftool) and the "regular" one. But I made the
Makefile export the API headers from libbpf only once, for the "regular"
build, and not for the bootstrap build. For bpftool it doesn't matter,
because the bootstrap bpftool build always occurs after libbpf has been
built and its headers have been exported.
For other tools relying on bootstrap bpftool only, like perf, this means
that the libbpf headers are not installed. For some time, the build was
still working, because the regular build for libbpf (with its export of
the headers) was passed as a dependency to another step required by the
bootstrap bpftool, such that the headers were (involuntarily) installed
for bootstrap bpftool. This was changed in commit 8b6c46241c77, the one
that you proposed to revert. That commit removes the dependency on the
"regular" libbpf build for the bootstrap bpftool. It's cleaner, but it
breaks the build for tools that just need boostrap bpftool.
Anyway. I just sent a fix, in which I propose to also install libbpf's
headers for the bootstrap build.
Quentin