9 Commits

Author SHA1 Message Date
55d126a8d7 Use tprints instead of tprintf in a few more places
* bpf.c (bpf_obj_manage, bpf_prog_attach_detach): Replace tprintf
with tprints for printing strings without format specifiers.
* dm.c (dm_decode_dm_target_spec): Likewise.
* mq.c (SYS_FUNC(mq_timedreceive)): Likewise.
* perf.c (print_perf_event_attr): Likewise.
* syscall.c (trace_syscall_exiting): Likewise.
2017-02-17 23:19:58 +00:00
5b2e59a413 bpf: update BPF_PROG_ATTACH decoding
Implement decoding of BPF_F_ALLOW_OVERRIDE flag of BPF_PROG_ATTACH
command introduced by linux kernel commit v4.10-rc7-174-g7f67763.

* configure.ac: Check for union bpf_attr.attach_flags
instead of union bpf_attr.attach_type.
* xlat/bpf_attach_flags.in: New file.
* bpf.c: Include "xlat/bpf_attach_flags.h".
(bpf_prog_attach_detach): Rename print_attach_bpf_fd argument
to print_attach.  Add attach_flags field to the structure,
print it in case of BPF_PROG_ATTACH.
* tests/bpf.c: Check for HAVE_UNION_BPF_ATTR_ATTACH_FLAGS
instead of HAVE_UNION_BPF_ATTR_ATTACH_TYPE.
(prog_cgroup): Initialize attach_flags field.
(main): Update expected output.
2017-02-17 00:05:00 +00:00
3c356c40e4 bpf: move common code to a separate function
* bpf.c (bpf_prog_attach_detach): New function.
(bpf_prog_attach, bpf_prog_detach): Use it.
2017-01-29 23:54:54 +00:00
Quentin Monnet
0a8dd6a68c Update bpf syscall decoding
Implement decoding of BPF_OBJ_PIN, BPF_OBJ_GET, BPF_PROG_ATTACH,
and BPF_PROG_DETACH commands.

* bpf.c: Include "xlat/bpf_attach_type.h".
(bpf_obj_manage, bpf_prog_attach, bpf_prog_detach): New functions.
(SYS_FUNC(bpf)): Use them.
* configure.ac: Check for union bpf_attr.bpf_fd and union
bpf_attr.attach_type.
* xlat/bpf_attach_type.in: New file.
* xlat/bpf_commands.in: Update list of BPF_* command constants.
* xlat/bpf_map_types.in: Update list of BPF_MAP_TYPE_* constants.
* xlat/bpf_prog_types.in: Update list of BPF_PROG_TYPE_* constants.
* tests/bpf.c [HAVE_UNION_BPF_ATTR_BPF_FD] (obj_manage): New function.
[HAVE_UNION_BPF_ATTR_ATTACH_TYPE] (prog_cgroup): Likewise.
(main): Use them.
2017-01-29 21:54:43 +00:00
7fa3d78319 Automatically replace kernel_(scno|ureg)_t with kernel_ulong_t
Remove temporary types created for transition from long
to kernel_ulong_t.

Automatically replace kernel_scno_t and kernel_ureg_t with
kernel_ulong_t using
$ git grep -El 'kernel_(scno|ureg)_t' |
  xargs sed -ri 's/kernel_(scno|ureg)_t/kernel_ulong_t/g'

* kernel_types.h (kernel_scno_t, kernel_ureg_t): Remove.
All users updated.
2016-12-26 10:43:34 +00:00
a940d1a60f printstr: rename to printstrn, add printstr as a thin wrapper
As about half of all printstr uses cases are invocations with the last
argument set to -1, create a dedicated function for this use case.

* defs.h (printstr): Rename to printstrn.  All callers updated.
(printstr): New static inline function.  All callers updated.
2016-12-25 11:32:45 +00:00
c96d9f17b1 bpf: change address argument type from long to kernel_ureg_t
* bpf.c (bpf_map_create, bpf_map_update_elem, bpf_map_delete_elem,
bpf_map_io, bpf_prog_load, SYS_FUNC(bpf)): Change address argument
type from long to kernel_ureg_t.
2016-12-25 11:32:44 +00:00
18d921da6d Fix decoding of BPF_MAP_UPDATE_ELEM flags
* bpf.c (bpf_map_update_elem): Print attr.flags using printxval64.
2016-05-16 21:47:09 +00:00
ddb53dd142 Implement bpf syscall decoding
* bpf.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* configure.ac (AC_CHECK_HEADERS): Add linux/bpf.h.
* linux/dummy.h (sys_bpf): Remove.
* pathtrace.c (pathtrace_match): Add SEN_bpf.
* xlat/bpf_commands.in: New file.
* xlat/bpf_map_types.in: New file.
* xlat/bpf_map_update_elem_flags.in: New file.
* xlat/bpf_prog_types.in: New file.
* tests/bpf.c: New file.
* tests/bpf.test: New test.
* tests/Makefile.am (check_PROGRAMS): Add bpf.
(TESTS): Add bpf.test.
* tests/.gitignore: Add bpf.
2015-07-27 15:27:43 +00:00