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SubjectRe: [PATCH 01/13] perf/core: Add perf_arch_regs and mask to perf_regs structure
Hi Madhavan,

[auto build test ERROR on tip/perf/core]
[also build test ERROR on v4.8-rc3 next-20160825]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url: https://github.com/0day-ci/linux/commits/Madhavan-Srinivasan/perf-core-Add-perf_arch_regs-and-mask-to-perf_regs-structure/20160829-050443
config: sparc64-allyesconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sparc64

All errors (new ones prefixed by >>):

>> kernel/events/core.c:5356:27: error: redefinition of 'perf_get_arch_regs_mask'
u64 __attribute__((weak)) perf_get_arch_regs_mask()
^
In file included from include/linux/perf_event.h:54:0,
from include/linux/trace_events.h:9,
from include/trace/syscall.h:6,
from include/linux/syscalls.h:81,
from kernel/events/core.c:34:
include/linux/perf_regs.h:52:5: note: previous definition of 'perf_get_arch_regs_mask' was here
u64 perf_get_arch_regs_mask(void)
^
>> kernel/events/core.c:5361:46: error: redefinition of 'perf_get_arch_reg'
struct perf_arch_regs *__attribute__((weak)) perf_get_arch_reg()
^
In file included from include/linux/perf_event.h:54:0,
from include/linux/trace_events.h:9,
from include/trace/syscall.h:6,
from include/linux/syscalls.h:81,
from kernel/events/core.c:34:
include/linux/perf_regs.h:57:24: note: previous definition of 'perf_get_arch_reg' was here
struct perf_arch_regs *perf_get_arch_reg(void)
^
>> kernel/events/core.c:5366:27: error: redefinition of 'perf_arch_reg_value'
u64 __attribute__((weak)) perf_arch_reg_value(struct perf_arch_regs *regs,
^
In file included from include/linux/perf_event.h:54:0,
from include/linux/trace_events.h:9,
from include/trace/syscall.h:6,
from include/linux/syscalls.h:81,
from kernel/events/core.c:34:
include/linux/perf_regs.h:62:5: note: previous definition of 'perf_arch_reg_value' was here
u64 perf_arch_reg_value(struct perf_arch_regs *regs, int idx)
^

vim +/perf_get_arch_regs_mask +5356 kernel/events/core.c

5350 {
5351 perf_guest_cbs = NULL;
5352 return 0;
5353 }
5354 EXPORT_SYMBOL_GPL(perf_unregister_guest_info_callbacks);
5355
> 5356 u64 __attribute__((weak)) perf_get_arch_regs_mask()
5357 {
5358 return 0;
5359 }
5360
> 5361 struct perf_arch_regs *__attribute__((weak)) perf_get_arch_reg()
5362 {
5363 return 0;
5364 }
5365
> 5366 u64 __attribute__((weak)) perf_arch_reg_value(struct perf_arch_regs *regs,
5367 int idx)
5368 {
5369 return 0;

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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