Re: [PATCH] perf callchain: Support riscv cross-platform

From: kernel test robot
Date: Fri Nov 24 2023 - 06:48:57 EST


Hi Paran,

kernel test robot noticed the following build errors:

[auto build test ERROR on perf-tools-next/perf-tools-next]
[also build test ERROR on tip/perf/core perf-tools/perf-tools linus/master acme/perf/core v6.7-rc2 next-20231124]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Paran-Lee/perf-callchain-Support-riscv-cross-platform/20231123-000232
base: https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git perf-tools-next
patch link: https://lore.kernel.org/r/20231122155548.2449-1-p4ranlee%40gmail.com
patch subject: [PATCH] perf callchain: Support riscv cross-platform
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231124/202311241453.S2nsKqhx-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311241453.S2nsKqhx-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

Makefile.config:1176: libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev
PERF_VERSION = 6.6.rc1.g1f4d296e5f76
util/unwind-libunwind.c: In function 'unwind__prepare_access':
>> util/unwind-libunwind.c:43:17: error: label 'out_register' used but not defined
43 | goto out_register;
| ^~~~
>> util/unwind-libunwind.c:28:13: error: unused variable 'err' [-Werror=unused-variable]
28 | int err;
| ^~~
>> util/unwind-libunwind.c:25:38: error: variable 'ops' set but not used [-Werror=unused-but-set-variable]
25 | struct unwind_libunwind_ops *ops = local_unwind_libunwind_ops;
| ^~~
util/unwind-libunwind.c: At top level:
>> util/unwind-libunwind.c:58:11: error: expected identifier or '(' before 'else'
58 | } else if (!strcmp(arch, "riscv64") || !strcmp(arch, "riscv")) {
| ^~~~
>> util/unwind-libunwind.c:63:9: error: expected identifier or '(' before 'if'
63 | if (!ops) {
| ^~
>> util/unwind-libunwind.c:67:13: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
67 | out_register:
| ^
>> util/unwind-libunwind.c:70:9: error: data definition has no type or storage class [-Werror]
70 | err = maps__unwind_libunwind_ops(maps)->prepare_access(maps);
| ^~~
>> util/unwind-libunwind.c:70:9: error: type defaults to 'int' in declaration of 'err' [-Werror=implicit-int]
>> util/unwind-libunwind.c:70:42: error: 'maps' undeclared here (not in a function)
70 | err = maps__unwind_libunwind_ops(maps)->prepare_access(maps);
| ^~~~
util/unwind-libunwind.c:71:9: error: expected identifier or '(' before 'if'
71 | if (initialized)
| ^~
>> util/unwind-libunwind.c:73:9: error: expected identifier or '(' before 'return'
73 | return err;
| ^~~~~~
>> util/unwind-libunwind.c:74:1: error: expected identifier or '(' before '}' token
74 | }
| ^
util/unwind-libunwind.c: In function 'unwind__flush_access':
>> util/unwind-libunwind.c:76:40: error: declaration of 'maps' shadows previous non-variable [-Werror=shadow]
76 | void unwind__flush_access(struct maps *maps)
| ~~~~~~~~~~~~~^~~~
util/unwind-libunwind.c: In function 'unwind__finish_access':
util/unwind-libunwind.c:84:41: error: declaration of 'maps' shadows previous non-variable [-Werror=shadow]
84 | void unwind__finish_access(struct maps *maps)
| ~~~~~~~~~~~~~^~~~
util/unwind-libunwind.c: In function 'unwind__prepare_access':
>> util/unwind-libunwind.c:58:9: error: control reaches end of non-void function [-Werror=return-type]
58 | } else if (!strcmp(arch, "riscv64") || !strcmp(arch, "riscv")) {
| ^
util/unwind-libunwind.c: At top level:
>> util/unwind-libunwind.c:16:13: error: 'unwind__register_ops' defined but not used [-Werror=unused-function]
16 | static void unwind__register_ops(struct maps *maps, struct unwind_libunwind_ops *ops)
| ^~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[7]: *** [tools/build/Makefile.build:105: tools/perf/util/unwind-libunwind.o] Error 1
make[7]: *** Waiting for unfinished jobs....
make[6]: *** [tools/build/Makefile.build:158: util] Error 2
make[5]: *** [Makefile.perf:669: tools/perf/perf-in.o] Error 2
make[5]: *** Waiting for unfinished jobs....
make[4]: *** [Makefile.perf:242: sub-make] Error 2
make[3]: *** [Makefile:70: all] Error 2
--
>> diff: tools/arch/riscv/include/uapi/asm/kvm.h: No such file or directory
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
diff -u tools/include/uapi/linux/mount.h include/uapi/linux/mount.h
diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
diff -u tools/arch/x86/include/uapi/asm/prctl.h arch/x86/include/uapi/asm/prctl.h
diff -u tools/arch/arm64/include/uapi/asm/perf_regs.h arch/arm64/include/uapi/asm/perf_regs.h
diff -u tools/arch/s390/include/uapi/asm/kvm.h arch/s390/include/uapi/asm/kvm.h
diff -u tools/arch/riscv/include/uapi/asm/kvm.h arch/riscv/include/uapi/asm/kvm.h
diff -u tools/arch/riscv/include/uapi/asm/unistd.h arch/riscv/include/uapi/asm/unistd.h

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