[Xen-users] Question from website: Xen 4.3 Build With Performance Counter

[Russ Pavlicek <russell.pavlicek@xxxxxxxxxxxxxx>]

This question is on our XenProject.org website Q&A section from user
"binaryhuang".  Anyone have insight?

-----


I use the source of Xen 4.3. By following the official guide, I can
start xen and use it. But if I want to use the xenperf(one of the
xen-tools). The output is "Error getting number of perf counters: 38
(Function not implemented)". I google it and someone says xen should
build with performance counter. So I execute: perfc=y perfc_arrays=y
make dist. And then make install. But the following error arise.

/home/binary/workspace/xen-4.3.0/xen/common/symbols-dummy.o -o
/home/binary/workspace/xen-4.3.0/xen/.xen-syms.0
prelink.o：在函数‘do_multicall’中：
/home/binary/workspace/xen-4.3.0/xen/common/multicall.c:102：对‘per_cpu__perfcounters’未定义的引用
/home/binary/workspace/xen-4.3.0/xen/common/multicall.c:102.text+0x151aa):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`per_cpu__perfcounters'
/home/binary/workspace/xen-4.3.0/xen/common/multicall.c:96：对‘per_cpu__perfcounters’未定义的引用
/home/binary/workspace/xen-4.3.0/xen/common/multicall.c:96.text+0x15228):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`per_cpu__perfcounters'
prelink.o：在函数‘alloc_heap_pages’中：
/home/binary/workspace/xen-4.3.0/xen/common/page_alloc.c:723：对‘per_cpu__perfcounters’未定义的引用
/home/binary/workspace/xen-4.3.0/xen/common/page_alloc.c:723.text+0x15c3c):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`per_cpu__perfcounters'
prelink.o：在函数‘csched_vcpu_remove’中：
/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:897：对‘per_cpu__perfcounters’未定义的引用
/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:897.text+0x18e63):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`per_cpu__perfcounters'
prelink.o：在函数‘csched_vcpu_sleep’中：
/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:918：对‘per_cpu__perfcounters’未定义的引用
/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:918.text+0x18ff3):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`per_cpu__perfcounters'
prelink.o:/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:866:
more undefined references to `per_cpu__perfcounters' follow
prelink.o：在函数‘csched_alloc_vdata’中：
/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:866.text+0x1910a):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`per_cpu__perfcounters'
prelink.o：在函数‘csched_acct’中：
/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:1215.text+0x19a90):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`per_cpu__perfcounters'
/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:1349.text+0x19c56):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`per_cpu__perfcounters'
/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:1332.text+0x19d22):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`per_cpu__perfcounters'
/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:1325.text+0x19e93):
relocation truncated to fit: R_X86_64_PC32 against undefined symbol
`per_cpu__perfcounters'
/home/binary/workspace/xen-4.3.0/xen/common/sched_credit.c:1204.text+0x19f1c):
additional relocation overflows omitted from the output
prelink.o：在函数‘do_sysctl’中：
/home/binary/workspace/xen-4.3.0/xen/common/sysctl.c:118：对‘perfc_control’未定义的引用
prelink.o：在函数‘compat_multicall’中：
/home/binary/workspace/xen-4.3.0/xen/common/compat/../multicall.c:102：对‘per_cpu__perfcounters’未定义的引用
/home/binary/workspace/xen-4.3.0/xen/common/compat/../multicall.c:96：对‘per_cpu__perfcounters’未定义的引用
prelink.o：在函数‘apic_timer_interrupt’中：
/home/binary/workspace/xen-4.3.0/xen/arch/x86/apic.c:1303：对‘per_cpu__perfcounters’未定义的引用
prelink.o：在函数‘map_domain_page’中：
/home/binary/workspace/xen-4.3.0/xen/arch/x86/domain_page.c:82：对‘per_cpu__perfcounters’未定义的引用
prelink.o：在函数‘search_pre_exception_table’中：
/home/binary/workspace/xen-4.3.0/xen/arch/x86/extable.c:96：对‘per_cpu__perfcounters’未定义的引用
prelink.o:/home/binary/workspace/xen-4.3.0/xen/arch/x86/irq.c:813:
more undefined references to `per_cpu__perfcounters' follow
prelink.o.data.rel+0x28)：对‘perfc_printall’未定义的引用
prelink.o.data.rel+0x48)：对‘perfc_reset’未定义的引用
ld: /home/binary/workspace/xen-4.3.0/xen/.xen-syms.0: hidden symbol
`perfc_control' isn't defined
ld: 最终连接失败: 错误的值
make[3]: *** [/home/binary/workspace/xen-4.3.0/xen/xen-syms] 错误 1
make[3]:正在离开目录 `/home/binary/workspace/xen-4.3.0/xen/arch/x86'
make[2]: *** [/home/binary/workspace/xen-4.3.0/xen/xen] 错误 2
make[2]:正在离开目录 `/home/binary/workspace/xen-4.3.0/xen'
make[1]: *** [install] 错误 2
make[1]:正在离开目录 `/home/binary/workspace/xen-4.3.0/xen'
make: *** [install-xen] 错误 2


Anyone have a solution to fix it??

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