1. 02 Feb, 2019 1 commit
  2. 01 Feb, 2019 1 commit
    • Anton Blanchard's avatar
      Fix debuginfo search on Ubuntu · 9d5f9721
      Anton Blanchard authored
      bcc on Ubuntu picks up the glibc binary instead of the debuginfo file
      because find_debug_via_debuglink() doesn't handle symbolic or hard
      links when checking if two paths point to the same file.
      
      Add a helper, same_file() which uses the device and inode to check if
      the two paths do point to the same file.
      Signed-off-by: default avatarAnton Blanchard <anton@ozlabs.org>
      9d5f9721
  3. 30 Jan, 2019 1 commit
  4. 29 Jan, 2019 1 commit
  5. 27 Jan, 2019 1 commit
  6. 24 Jan, 2019 2 commits
  7. 23 Jan, 2019 3 commits
  8. 22 Jan, 2019 3 commits
  9. 21 Jan, 2019 2 commits
    • Xiaozhou Liu's avatar
      print_log2_hist(): check and skip possible paddings (#2155) · 3f7b5966
      Xiaozhou Liu authored
      Address issue 2154.
      
      When a struct S is used as key to a BPF_HISTOGRAM, it is assumed that the second
      member of S holds the slot. But when S is converted to python from bpf C,
      a padding may be inserted as a second member. This breaks print_log2_hist().
      
          root@debian:~/bcc/tools# ./softirqs.py -d
          Tracing soft irq event time... Hit Ctrl-C to end.
          ^C
          Traceback (most recent call last):
            File "./softirqs.py", line 144, in <module>
              dist.print_log2_hist(label, "softirq", section_print_fn=vec_to_name)
            File "/usr/local/lib/python2.7/dist-packages/bcc/table.py", line 326, in print_log2_hist
              vals[slot] = v.value
          TypeError: list indices must be integers, not str
      
      Fix it by skipping the possible padding. Future work would be fixing/working
      around in the library where the padding is introduced.
      3f7b5966
    • yonghong-song's avatar
      Merge pull request #2149 from iovisor/yhs_dev · dc1254ed
      yonghong-song authored
      use kernel libbpf in bcc
      dc1254ed
  10. 18 Jan, 2019 3 commits
  11. 17 Jan, 2019 5 commits
  12. 16 Jan, 2019 5 commits
  13. 15 Jan, 2019 2 commits
    • Joel's avatar
      Bcc build fixes for Android (#2142) · 98fd5030
      Joel authored
      * Mark unused parameters as unused
      
      In Android, we are building libbpf with -Wunused-parameter, mark the
      parameters in bpf_detach_tracepoint to prevent errors.
      
      Change-Id: I2d0011746af80898e55d456b973a95330ce6be71
      Signed-off-by: default avatarJoel Fernandes <joel@joelfernandes.org>
      
      * Avoid void pointer arithmetic
      
      In Android, we build libbpf with -Wpointer-arith, this causes warnings
      as below. Avoid void pointer arithmetic to prevent the warning.
      
      external/bcc/src/cc/perf_reader.c:189:26: error: arithmetic on a pointer
      to void is a GNU extension [-Werror,-Wpointer-arith] memcpy(reader->buf
      + len, base, e->size - len);                               ~~~~~~~~~~~ ^
      
      Change-Id: If06535459473c78799b38119786a91e74a208895
      Signed-off-by: default avatarJoel Fernandes <joel@joelfernandes.org>
      
      * Cast correctly for unsigned long format specifier
      
      In Android, -Wformat gets passed to the compiler causing a warning. Fix
      it by casting.
      
      external/bcc/src/cc/libbpf.c:972:58: error: format specifies type
      'unsigned long' but the argument has type 'uint64_t' (aka 'unsigned lo
      ng long') [-Werror,-Wformat]
      
      Change-Id: I5e70eeff983f20a0b921e81aee7ddbee6d7de2b3
      Signed-off-by: default avatarJoel Fernandes <joel@joelfernandes.org>
      98fd5030
    • vijunag's avatar
      Add build_id support for BPF stackmap · 2ddbc077
      vijunag authored
      A separate build_id stackmap can be created with the help of new macro BPF_STACK_TRACE_BUILDID. The kernel BPF reports stacktrace in the 
      structure bpf_stack_build_id. Changes have been made to BPF modules to
      support resolving symbols mentioned in the above format.
      An example tool is also available in examples/tracing/stack_buildid_example.py. 
      Both python and C++ test cases are added.
      2ddbc077
  14. 14 Jan, 2019 1 commit
  15. 12 Jan, 2019 1 commit
  16. 11 Jan, 2019 8 commits