d54388e1ce
print_array: enhance printing of unfetchable object addresses
...
When umoven_func invocation fails to fetch data, it prints the faulty
address. If this happens to a subsequent umoven_func invocation,
the printed address may be undistinguishable from a valid data printed
by print_func, e.g. when the data is printed in a numeric form like
[0x1, 0x2, 0x3, 0xdefaced].
Fix this source of confusion by moving the printing of the faulty
address from umoven_func to print_array itself. This change renames
umoven_func to tfetch_mem_func and changes its semantics, so that
- tfetch_mem_func never prints anything;
- tfetch_mem_func returns true if the fetch succeeded,
and false otherwise.
* defs.h (print_array): Replace umoven_func argument with
tfetch_mem_func.
* util.c (print_array): Replace umoven_func argument with
tfetch_mem_func, document expected tfetch_mem_func return value
semantics. When tfetch_mem_func returns false, print either addr
or "... /* addr */" depending on the context (inside the array or not).
* bpf.c (print_ebpf_prog, print_bpf_prog_info,
BEGIN_BPF_CMD_DECODER(BPF_PROG_QUERY)): Replace umoven_or_printaddr
argument of print_array with tfetch_mem.
* bpf_filter.c (print_bpf_fprog): Likewise.
* btrfs.c (btrfs_print_logical_ino_container,
btrfs_print_ino_path_container, btrfs_print_qgroup_inherit,
btrfs_ioctl): Likewise.
* dm.c (dm_decode_dm_target_deps): Likewise.
* epoll.c (epoll_wait_common): Likewise.
* file_ioctl.c (file_ioctl): Likewise.
* ipc_sem.c (tprint_sembuf_array): Likewise.
* kexec.c (print_kexec_segments): Likewise.
* mem.c (SYS_FUNC(subpage_prot)): Likewise.
* net.c (print_getsockopt): Likewise.
* netlink.c (decode_nlmsgerr_attr_cookie): Likewise.
* netlink_netlink_diag.c (decode_netlink_diag_groups): Likewise.
* netlink_packet_diag.c (decode_packet_diag_mclist): Likewise.
* netlink_unix_diag.c (decode_unix_diag_inode): Likewise.
* nlattr.c (decode_nla_meminfo): Likewise.
* numa.c (print_nodemask, SYS_FUNC(move_pages),
* perf_ioctl.c (perf_ioctl_query_bpf): Likewise.
* poll.c (decode_poll_entering): Likewise.
* printsiginfo.c (print_siginfo_array): Likewise.
* rtnl_tc.c (decode_tca_stab_data): Likewise.
* sock.c (decode_ifconf): Likewise.
* uid.c (print_groups): Likewise.
* io.c (SYS_FUNC(io_submit), SYS_FUNC(io_getevents)): Replace
umoven_or_printaddr argument of print_array with tfetch_mem.
(tprint_iov_upto): Replace umoven_or_printaddr_ignore_syserror
with tfetch_mem_ignore_syserror.
* v4l2.c (print_v4l2_format_fmt): Replace umoven_or_printaddr argument
of print_array with tfetch_mem.
(print_v4l2_ext_controls): Replace umoven_or_printaddr_ignore_syserror
with tfetch_mem_ignore_syserror.
* mmsghdr.c (fetch_struct_mmsghdr_or_printaddr): Rename
to fetch_struct_mmsghdr_for_print, do not print address, return bool.
(decode_mmsgvec): Replace fetch_struct_mmsghdr_or_printaddr
with fetch_struct_mmsghdr_for_print.
* tests/aio.c (main): Update expected output.
* tests/bpf.c (print_BPF_PROG_QUERY_attr5): Likewise.
* tests/ioctl_perf-success.c (main): Likewise.
* tests/ioctl_v4l2.c (main): Update expected output.
* tests/kexec_load.c (main): Likewise.
* tests/mmsg_name.c (test_mmsg_name): Update expected output.
* tests/move_pages.c (print_page_array, print_node_array): Likewise.
* tests/poll.c (print_pollfd_array_entering): Likewise.
* tests/preadv-pwritev.c (main): Likewise.
* tests/preadv2-pwritev2.c (dumpio): Likewise.
* tests/process_vm_readv_writev.c (print_iov): Likewise.
* tests/pwritev.c (print_iovec): Likewise.
* tests/readv.c (main): Likewise.
* tests/seccomp-filter-v.c
* tests/semop.c (main): Likewise.
* tests/set_mempolicy.c (print_nodes): Likewise.
* tests/setgroups.c (main): Likewise.
* tests/test_nlattr.h (print_nlattr) Likewise.
Co-Authored-by: Eugene Syromyatnikov <evgsyr@gmail.com>
2018-05-29 09:58:10 +00:00
Eugene Syromyatnikov
d89a9e4e1d
poll.c: remove special INFTIM handling
...
On Linux, poll syscall interprets any negative timeout value as an
infinite timeout, so no need to handle BSD-specific INFTIM.
* poll.c (SYS_FUNC(poll)): Remove INFTIM handling.
2018-03-15 14:24:22 +00:00
daaf8ab7fe
Update copyright headers
...
Headers updated automatically using maint/update_copyright_years.sh
script.
2018-02-13 22:00:00 +00:00
Eugene Syromyatnikov
0b803f8edd
Use xappendstr instead of xsnprintf where suitable
...
Replace occurrences of
outptr += xsnprintf(outptr, sizeof(outstr) - (outptr - outstr), ...)
with much more sleek
outptr = xappendstr(outstr, outptr, ...)
* desc.c (decode_select): Replace xsnprintf with xappendstr.
* open.c (sprint_open_modes): Likewise.
* poll.c (decode_poll_exiting): Likewise.
* signal.c (sprintsigmask_n): Likewise.
* xlat.c (sprintflags): Likewise.
2018-01-11 15:54:33 +00:00
abe89bf315
poll.c: use xs*printf instead of sprintf
...
* poll.c: Include "xstring.h".
(decode_poll_exiting): Replace sprintf with xsnprintf and xsprintf.
2018-01-07 00:05:42 +00:00
Eugene Syromyatnikov
9d095c7860
Add copyright headers
2017-05-22 17:33:51 +00:00
e9c702f9ad
Introduce NSIG_BYTES
...
* nsig.h (NSIG_BYTES): New macro.
* desc.c: Use it in comments instead of NSIG.
* epoll.c: Likewise.
* poll.c: Likewise.
* signalfd.c: Likewise.
* signal.c: Likewise.
(sprintsigmask_n, print_sigset_addr_len_limit): Use it instead of NSIG.
* linux/alpha/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/arm/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/crisv10/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/ia64/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/m68k/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/microblaze/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/mips/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/powerpc/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/s390/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/sparc/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/tile/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/x86_64/arch_sigreturn.c (arch_sigreturn): Likewise.
* tests/pselect6.c (main): Likewise.
2016-12-27 23:32:44 +00:00
89636759d7
Automatically replace PRI_kr[dux] with PRI_kl[dux]
...
Remove temporary macros created for transition from long
to kernel_ulong_t.
Automatically replace PRI_kr[dux] with PRI_kl[dux] using
$ git grep -l 'PRI_kr[dux]' | xargs sed -ri 's/PRI_kr([dux])/PRI_kl\1/g'
* defs.h (PRI_krd, PRI_kru, PRI_krx): Remove. All users updated.
2016-12-26 10:43:34 +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
1d5bb61c49
Print kernel_ureg_t and kernel_scno_t using dedicated format strings
...
Prepare for the change of kernel_ureg_t and kernel_scno_t from
unsigned long to kernel_ulong_t.
* defs.h (PRI_krd, PRI_kru, PRI_krx): New temporary macros.
All users updated.
2016-12-26 10:43:04 +00:00
1c3c1ae44e
poll: change address argument type from long to kernel_ureg_t
...
* poll.c (decode_poll_exiting): Change tracee address argument type
from long to kernel_ureg_t.
2016-12-25 11:32:44 +00:00
b89258dcdd
poll: change counter type from unsigned long to unsigned int
...
* poll.c (decode_poll_exiting): Change the type of printed and
max_printed counters from unsigned long to unsigned int.
2016-12-23 19:26:58 +00:00
30d13975a4
poll: change tracee address type from unsigned long to kernel_ureg_t
...
* poll.c (decode_poll_entering, decode_poll_exiting): Change the type
all tracee address variables from unsigned long to kernel_ureg_t.
2016-12-23 19:26:58 +00:00
f0ba3723f5
Replace "(unsigned long) -1L" with -1UL
...
* defs.h (dumpiov): Replace "(unsigned long) -1L" with -1UL.
* io.c (print_iovec, tprint_iov): Likewise.
* msghdr.c (SYS_FUNC(sendmsg)): Likewise.
* syscall.c (dumpio): Likewise.
* poll.c (decode_poll_exiting): Replace "(unsigned int) -1" with -1U.
2016-12-18 14:09:51 +00:00
952d89ba5a
Fix printing of invalid struct pollfd.events
...
* poll.c (print_pollfd): Explicitly cast struct pollfd.events
to unsigned short to avoid potential sign-extension bug when printing
invalid struct pollfd.events.
2016-05-16 22:41:19 +00:00
6274ecc752
Prepare for transition from sprintflags64 to sprintflags
...
* fcntl.c (print_fcntl): Cast 3rd argument of sprintflags
to unsigned long.
* membarrier.c (SYS_FUNC(membarrier)): Likewise.
* prctl.c (SYS_FUNC(prctl)): Likewise.
* poll.c (decode_poll_exiting): Cast 3rd argument of sprintflags
to unsigned short.
2016-05-15 14:23:06 +00:00
fd2d6a7f52
poll.c: use print_array function
...
* poll.c (print_pollfd): Change for use as print_array callback.
(decode_poll_entering): Use print_array.
* tests/poll.c: Update.
* tests/poll.test: Update.
2016-05-07 23:37:53 +00:00
9f612ffc49
Fix abbreviated output of poll and ppoll decoders
...
* poll.c (decode_poll_entering, decode_poll_exiting): Fix corner cases
of abbreviated output.
* tests/ppoll-v.expected: Update.
* tests/ppoll.expected: Update.
* tests/ppoll.test: Update.
2016-02-16 01:35:36 +00:00
8ef9809b63
Print unfetchable address in poll and ppoll decoders
...
* poll.c (decode_poll_entering): Replace umove call with
umove_or_printaddr.
(decode_poll_exiting): Print unfetchable address when umove call fails.
2016-02-16 01:35:36 +00:00
2950de3631
Convert another parser of struct timespec to new mpers infrastructure
...
* print_time.c (sprint_timespec): New mpers printer.
* defs.h (TIMESPEC_TEXT_BUFSIZE): Update.
(sprint_timespec): Remove.
* time.c (sprint_timespec): Remove.
* net.c (sys_recvmmsg): Update callers.
* poll.c (decode_poll_exiting): Likewise.
2015-09-19 04:04:49 +03:00
3b9d315e8c
decode_poll_exiting: reserve more space in output buffer
...
* poll.c (decode_poll_exiting): Reserve more space in output buffer.
2015-08-01 08:37:46 +00:00
d9fb450748
Cleanup poll/ppoll decoders
...
* poll.c (decode_poll): Split into print_pollfd, decode_poll_entering,
and decode_poll_exiting.
(sys_poll, sys_ppoll): Update callers.
* tests/ppoll.c: New file.
* tests/ppoll.expected: Likewise.
* tests/ppoll-v.expected: Likewise.
* tests/ppoll.test: New test.
* tests/Makefile.am (check_PROGRAMS): Add ppoll.
(TESTS): Add ppoll.test.
(EXTRA_DIST): Add ppoll.expected and ppoll-v.expected.
* tests/.gitignore: Add ppoll.
2015-07-30 22:03:07 +00:00
c18b002fe9
poll: print timeout argument as int
...
* poll.c (sys_poll): Explicitly cast timeout argument to int.
2015-07-30 22:03:07 +00:00
811bda6225
stream.c: move poll and ppoll parsers to a separate file
...
* poll.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* stream.c (decode_poll, sys_poll, sys_ppoll): Move to poll.c.
2015-07-30 22:03:07 +00:00
