1. 06 2月, 2019 5 次提交
  2. 02 2月, 2019 1 次提交
  3. 28 1月, 2019 2 次提交
    • F
      selftests: timers: use LDLIBS instead of LDFLAGS · 7d4e591b
      Fathi Boudra 提交于
      posix_timers fails to build due to undefined reference errors:
      
       aarch64-linaro-linux-gcc --sysroot=/build/tmp-rpb-glibc/sysroots/hikey
       -O2 -pipe -g -feliminate-unused-debug-types -O3 -Wl,-no-as-needed -Wall
       -DKTEST  -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -lrt -lpthread
       posix_timers.c
       -o /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/timers/posix_timers
       /tmp/cc1FTZzT.o: In function `check_timer_create':
       /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/timers/posix_timers.c:157:
       undefined reference to `timer_create'
       /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/timers/posix_timers.c:170:
       undefined reference to `timer_settime'
       collect2: error: ld returned 1 exit status
      
      It's GNU Make and linker specific.
      
      The default Makefile rule looks like:
      
      $(CC) $(CFLAGS) $(LDFLAGS) $@ $^ $(LDLIBS)
      
      When linking is done by gcc itself, no issue, but when it needs to be passed
      to proper ld, only LDLIBS follows and then ld cannot know what libs to link
      with.
      
      More detail:
      https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
      
      LDFLAGS
      Extra flags to give to compilers when they are supposed to invoke the linker,
      ‘ld’, such as -L. Libraries (-lfoo) should be added to the LDLIBS variable
      instead.
      
      LDLIBS
      Library flags or names given to compilers when they are supposed to invoke the
      linker, ‘ld’. LOADLIBES is a deprecated (but still supported) alternative to
      LDLIBS. Non-library linker flags, such as -L, should go in the LDFLAGS
      variable.
      
      https://lkml.org/lkml/2010/2/10/362
      
      tools/perf: libraries must come after objects
      
      Link order matters, use LDLIBS instead of LDFLAGS to properly link against
      libpthread.
      Signed-off-by: NDenys Dmytriyenko <denys@ti.com>
      Signed-off-by: NFathi Boudra <fathi.boudra@linaro.org>
      Signed-off-by: NShuah Khan <shuah@kernel.org>
      7d4e591b
    • F
      selftests: net: use LDLIBS instead of LDFLAGS · 870f193d
      Fathi Boudra 提交于
      reuseport_bpf_numa fails to build due to undefined reference errors:
      
       aarch64-linaro-linux-gcc
       --sysroot=/build/tmp-rpb-glibc/sysroots/hikey -Wall
       -Wl,--no-as-needed -O2 -g -I../../../../usr/include/  -Wl,-O1
       -Wl,--hash-style=gnu -Wl,--as-needed -lnuma  reuseport_bpf_numa.c
       -o
       /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/net/reuseport_bpf_numa
       /tmp/ccfUuExT.o: In function `send_from_node':
       /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/net/reuseport_bpf_numa.c:138:
       undefined reference to `numa_run_on_node'
       /tmp/ccfUuExT.o: In function `main':
       /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/net/reuseport_bpf_numa.c:230:
       undefined reference to `numa_available'
       /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/net/reuseport_bpf_numa.c:233:
       undefined reference to `numa_max_node'
      
      It's GNU Make and linker specific.
      
      The default Makefile rule looks like:
      
      $(CC) $(CFLAGS) $(LDFLAGS) $@ $^ $(LDLIBS)
      
      When linking is done by gcc itself, no issue, but when it needs to be passed
      to proper ld, only LDLIBS follows and then ld cannot know what libs to link
      with.
      
      More detail:
      https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
      
      LDFLAGS
      Extra flags to give to compilers when they are supposed to invoke the linker,
      ‘ld’, such as -L. Libraries (-lfoo) should be added to the LDLIBS variable
      instead.
      
      LDLIBS
      Library flags or names given to compilers when they are supposed to invoke the
      linker, ‘ld’. LOADLIBES is a deprecated (but still supported) alternative to
      LDLIBS. Non-library linker flags, such as -L, should go in the LDFLAGS
      variable.
      
      https://lkml.org/lkml/2010/2/10/362
      
      tools/perf: libraries must come after objects
      
      Link order matters, use LDLIBS instead of LDFLAGS to properly link against
      libnuma.
      Signed-off-by: NFathi Boudra <fathi.boudra@linaro.org>
      Signed-off-by: NShuah Khan <shuah@kernel.org>
      870f193d
  4. 26 1月, 2019 5 次提交
  5. 25 1月, 2019 27 次提交
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