| Commit message (Collapse) | Author | Age | Files | Lines |
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* staplog.c (get_rchan): Separated original relayfs code and current
relayfs code.
(get_rchan_buf): Ditto.
(output_cpu_logs): Ditto.
(get_rchan_addr): Handles original relayfs code detection.
(setup_global_data): Looks for '_stp_relay_data' structure instead of
'_stp_utt' structure.
(open_output_file): Improved error message.
* runtime/transport/relay_v2.c: Rearranged struct _stp_relay_data_type to
make things a bit easier for staplog.c.
* runtime/transport/relayfs.c: Ditto
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* runtime/transport/transport.h: Added prototype for
_stp_transport_get_state().
* runtime/transport/relay_v2.c (_stp_transport_get_state): New function.
* runtime/transport/relayfs.c (_stp_transport_get_state): Ditto.
* runtime/transport/ring_buffer.c (_stp_transport_data_fs_init): Sets
state.
(_stp_transport_data_fs_start): Ditto.
(_stp_transport_data_fs_stop): Ditto.
(_stp_transport_get_state): Returns state.
* runtime/print_new.c (stp_print_flush): Checks transport state before
trying to flush.
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* runtime/transport/relay_v2.c (_stp_transport_data_fs_overwrite): Renamed
from stp_relay_set_overwrite().
* runtime/transport/relayfs.c (stp_relay_set_overwrite): Ditto.
* runtime/transport/ring_buffer.c (_stp_transport_data_fs_overwrite): New
place holder function.
* runtime/transport/transport.c (_stp_detach): Calls
_stp_transport_data_fs_overwrite().
(_stp_attach): Calls _stp_transport_data_fs_overwrite().
* runtime/transport/transport.h: Added prototype for
_stp_transport_data_fs_overwrite().
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* runtime/transport/control.c (_stp_ctl_write_dbug): Added support for
more messages.
* runtime/transport/relay_v2.c (_stp_transport_data_fs_start): New
function.
(_stp_transport_data_fs_stop): Ditto.
(_stp_transport_data_fs_close): Moved some functionality into
_stp_transport_data_fs_stop() and calls _stp_transport_data_fs_stop()
also.
(_stp_transport_data_fs_init): Moved some functionality into
_stp_transport_data_fs_start() and calls _stp_transport_data_fs_start()
also.
* runtime/transport/relayfs.c (_stp_transport_data_fs_start): New
function.
(_stp_transport_data_fs_stop): Ditto.
(_stp_transport_data_fs_close): Moved some functionality into
_stp_transport_data_fs_stop() and calls _stp_transport_data_fs_stop()
also.
(_stp_transport_data_fs_init): Moved some functionality into
_stp_transport_data_fs_start() and calls _stp_transport_data_fs_start()
also.
* runtime/transport/ring_buffer.c (_stp_transport_data_fs_start): New
empty function.
(_stp_transport_data_fs_stop): Ditto.
* runtime/transport/transport.h: Added _stp_transport_data_fs_start() and
_stp_transport_data_fs_stop() prototypes.
* runtime/transport/transport.c (_stp_cleanup_and_exit): Calls
_stp_transport_data_fs_stop().
(_stp_transport_close): Calls _stp_transport_fs_close() earlier.
(_stp_transport_init): Calls _stp_transport_data_fs_start().
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* runtime/print.c: Only use print_new.c.
* runtime/print_new.c (stp_print_flush): Add STP_TRANSPORT_VERSION 1 support.
* runtime/transport/transport.c: Removed inclusion of procfs.c.
* runtime/transport/procfs.c (_stp_proc_read): Adapt to new interface.
(_stp_proc_write): Ditto.
* runtime/transport/relayfs.c: Ditto.
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2009-02-24 David Smith <dsmith@redhat.com>
* print.h: New file.
* print.c: Includes new print.h file.
* print_new.c (stp_print_flush): Commented out some code that
needs replacing.
* sym.c: Includes sym.h.
* transport/debugfs.c: Includes transport.h.
* transport/relayfs.c: Updated _stp_get_root_dir() call.
* transport/transport.c: Ifdef'ed out most setup.
* transport/transport.h: Ifdef'ed out all but basics.
* transport/utt.c (utt_create_tree): Updated _stp_get_root_dir()
call.
* transport/utt.h: Commented out 'rchan' in struct utt_trace.
(utt_reserve): Ifdef'ed out guts.
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2009-02-12 David Smith <dsmith@redhat.com>
* transport.c (_stp_lock_transport_dir): Renamed from
_stp_lock_debugfs(), since on older kernels this actually uses
procfs.
(_stp_unlock_transport_dir): Renamed from _stp_unlock_debugfs(),
since on older kernels this actually uses procfs.
(_stp_lock_transport_dir): Changed
_stp_lock_debugfs()/_stp_unlock_debugfs() to
_stp_lock_transport_dir()/_stp_unlock_transport_dir().
* transport.h: Ditto. Also added _stp_transport_init()
prototype.
* utt.c (utt_remove_root): Changed
_stp_lock_debugfs()/_stp_unlock_debugfs() to
_stp_lock_transport_dir()/_stp_unlock_transport_dir().
* relayfs.c (_stp_remove_relay_root): Ditto.
2009-02-12 David Smith <dsmith@redhat.com>
* procfs.c (_stp_rmdir_proc_module): Changed
_stp_lock_debugfs()/_stp_unlock_debugfs() to
_stp_lock_transport_dir()/_stp_unlock_transport_dir().
(_stp_mkdir_proc_module): Ditto.
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This change just inserts 'static' on runtime, tapset, and generated C
functions and globals, so the compiler can do a better job of
optimizing.
My tests with small scripts show ~10% reduction in compile time and ~20%
reduction in module size. Larger scripts may show less benefit, but I
expect purely positive results.
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PR 5281
* transport.c (_stp_detach, _stp_attach): Call utt_set_overwrite()
instead of setting a flag directly.
* utt.c (utt_set_overwrite): New. Set overwrite mode.
* relayfs.c (utt_set_overwrite): New. Set overwrite mode.
* utt.h: Remove global utt_overwrite_flag.
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Merge from setuid-branch. Changes also by Martin Hunt
<hunt@redhat.com>.
* control.c (_stp_ctl_write): Make sure we don't overflow.
(_stp_ctl_open_cmd): Do not allow multiple opens of the control
file.
(_stp_ctl_write_cmd): Once STP_START is received, ignore
everything except STP_EXIT. Create another state variable
"initialized". Don't respond to STP_SYMBOLS or STP_MODULES unless
initialized is 0. Also check that current pid is the same as the
pid that did insmod.
(_stp_register_ctl_channel): Bug fix - sets owner/group after
checking for NULL.
* procfs.c (_stp_ctl_write): Make sure we don't overflow.
(_stp_ctl_open_cmd): Do not allow multiple opens of the control
file.
(_stp_ctl_write_cmd): Once STP_START is received, ignore
everything except STP_EXIT. Create another state variable
"initialized". Don't respond to STP_SYMBOLS or STP_MODULES unless
initialized is 0. Also check that current pid is the same as the
pid that did insmod.
(_stp_register_ctl_channel): Set ownership of cmd file and percpu
files for bulkmode.
* relayfs.c (utt_trace_setup): Set ownership of percpu files.
Improved error handling.
(utt_trace_remove): Improved error checking.
* utt.c (utt_remove_tree): Improved error checking.
(utt_trace_cleanup): Ditto.
(utt_create_buf_file_callback): Set file ownership.
(utt_create_global_buf_file_callback): Set file ownership.
* transport.h: Delcare _stp_uid, _stp_gid, and _stp_init_pid.
* transport.c (_stp_transport_init): Set _stp_uid, _stp_gid, and
_stp_init_pid.
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* symbols.c (_stp_do_module): If a module has no symbols, just
return NULL instead of an errorcode.
* control.c, procfs.c, relayfs.c, transport.c, utt.c, utt.h:
Revert back to using systemtap/modulename instead of systemtap_pid.
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* transport_msgs.h: ifdef old messages as such.
Add support for new transport.
* relayfs.c: Simplify and add new interface to look
like utt.
* utt.[ch]: New files. Similar to the proposed utt interface.
These setup and teardown relayfs on debugfs.
* control.c: New file. Implements a simple control channel.
A small subset of procfs.c.
* procfs.c: This is now only used for old kernels lacking newer
relayfs. Change STP_RELAYFS to STP_BULKMODE. Use new
messages from transport_msgs.h. Don't support
RELAYFS_CHANNEL_VERSION >= 4. CHanges all control channel functions
to new names. Use pids instead of module names in /proc names.
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