linux-kernel - perf: arm64: libunwind patch

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Message-ID: <deb0d490-e2ad-40d5-f804-c51a91edc4d5@gmail.com>
Date:   Tue, 17 Mar 2020 18:29:05 -0400
From:   ferar achkar <ferarachkar@...il.com>
To:     peterz@...radead.org
Cc:     mingo@...hat.com, acme@...nel.org, linux-kernel@...r.kernel.org
Subject: perf: arm64: libunwind patch

hi,
please find attached a compile error fix.
regards,

ferar

------------------

ferar@...barian:~/renegade_rk3328/perf_core$ make -j4 ARCH=arm64 ....

....

Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' 
differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
diff -u tools/arch/arm64/include/uapi/asm/kvm.h 
arch/arm64/include/uapi/asm/kvm.h
Warning: Kernel ABI header at 
'tools/include/uapi/asm-generic/mman-common.h' differs from latest 
version at 'include/uapi/asm-generic/mman-common.h'
diff -u tools/include/uapi/asm-generic/mman-common.h 
include/uapi/asm-generic/mman-common.h

Auto-detecting system features:
...                         dwarf: [ on  ]
...            dwarf_getlocations: [ on  ]
...                         glibc: [ on  ]
...                          gtk2: [ OFF ]
...                      libaudit: [ on  ]
...                        libbfd: [ on  ]
...                        libcap: [ on  ]
...                        libelf: [ on  ]
...                       libnuma: [ OFF ]
...        numa_num_possible_cpus: [ OFF ]
...                       libperl: [ OFF ]
...                     libpython: [ OFF ]
...                     libcrypto: [ on  ]
...                     libunwind: [ on  ]
...            libdw-dwarf-unwind: [ on  ]
...                          zlib: [ on  ]
...                          lzma: [ on  ]
...                     get_cpuid: [ OFF ]
...                           bpf: [ on  ]
...                        libaio: [ on  ]
...                       libzstd: [ OFF ]
...        disassembler-four-args: [ on  ]

Makefile.config:497: No sys/sdt.h found, no SDT events are defined, 
please install systemtap-sdt-devel or systemtap-sdt-dev

....

   CC       util/dwarf-regs.o
   CC       util/unwind-libunwind-local.o
   CC       util/unwind-libunwind.o
   CC       util/libunwind/arm64.o
util/libunwind/arm64.c:20:40: error: no previous prototype for 
‘libunwind__arm64_reg_id’ [-Werror=missing-prototypes]
  #define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arm64_reg_id(regnum)
                                         ^
util/libunwind/../../arch/arm64/util/unwind-libunwind.c:11:5: note: in 
expansion of macro ‘LIBUNWIND__ARCH_REG_ID’
  int LIBUNWIND__ARCH_REG_ID(int regnum)
      ^~~~~~~~~~~~~~~~~~~~~~
   CC       util/zlib.o
   CC       util/lzma.o
util/libunwind/arm64.c:20:40: error: redundant redeclaration of 
‘libunwind__arm64_reg_id’ [-Werror=redundant-decls]
  #define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arm64_reg_id(regnum)
                                         ^
/home/ferar/renegade_rk3328/linux-5.4.0-rc1/tools/perf/util/unwind.h:49:5: 
note: in expansion of macro ‘LIBUNWIND__ARCH_REG_ID’
  int LIBUNWIND__ARCH_REG_ID(int regnum);
      ^~~~~~~~~~~~~~~~~~~~~~
util/libunwind/arm64.c:20:40: note: previous definition of 
‘libunwind__arm64_reg_id’ was here
  #define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arm64_reg_id(regnum)
                                         ^
util/libunwind/../../arch/arm64/util/unwind-libunwind.c:11:5: note: in 
expansion of macro ‘LIBUNWIND__ARCH_REG_ID’
  int LIBUNWIND__ARCH_REG_ID(int regnum)
      ^~~~~~~~~~~~~~~~~~~~~~
   CC       util/cap.o
   CC       util/demangle-java.o
   CC       util/demangle-rust.o
....

----------------------------------------------------------------------

View attachment "0001-Fix-Arm64-libunwind-trivial-compile-error.patch" of type "text/x-patch" (1143 bytes)