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* Change staprun to exec stapio. Add "-d" option to staprun.Martin Hunt2008-04-213-9/+14
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* PR6410: unwinder-less architecture toleranceFrank Ch. Eigler2008-04-152-0/+7
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* PR6405: unwinder build compatibility with RHEL5Frank Ch. Eigler2008-04-152-4/+21
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* Change stap to get kernel symbols from debuginfo andMartin Hunt2008-04-092-4/+25
| | | | compile them into the module.
* Add new define STP_USE_DWARF_UNWINDER which is set based on which archsMartin Hunt2008-03-312-5/+8
| | | | work with the unwinder.
* Remove misleading error message.Martin Hunt2008-03-312-1/+4
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* Support for kernels built with CONFIG_FRAME_POINTERMartin Hunt2008-03-303-2/+10
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* kretprobe trampoline fixesMartin Hunt2008-03-281-0/+2
| | | | | Recognize when a kretprobe trampoline was hit and continue with inexact stack dump. Also some testsuite changes.
* control.c (_stp_ctl_write_dbug): Insert missing break.Martin Hunt2008-03-252-0/+4
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* 32-bit fixesMartin Hunt2008-03-253-6/+11
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* rebased unwind_branch on top of current masterFrank Ch. Eigler2008-03-256-627/+437
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* 2008-02-27 Martin Hunt <hunt@redhat.com>hunt2008-02-276-393/+358
| | | | | | | | | | | | | | | | | | | | | | | | | | | * sym.h (_stp_module): Add text_size, lock, and unwind data pointer. * sym.c (_stp_find_module_by_addr): New function. (_stp_kallsyms_lookup): Call _stp_find_module_by_addr(). (_stp_get_unwind_info): New. * runtime.h: Move debug macros to debug.h. Include it. * debug.h: New file. * map.c: Update debug calls. * map-gen.c: Update debug calls. * pmap-gen.c: Update debug calls. * mempool.c: New file. * symbols.c: Use rwlocks. Use new dbug macros. Handle unwind info if present. * transport.c: Include mempool.c. Update dbug and kbug calls to new macros. * transport_msgs.h (_stp_command_name): Add struct containing message names for debugging. * control.c, procfs.c: Use new dbug macros. Use new mempool functions.
* 2008-01-28 Martin Hunt <hunt@redhat.com>hunt2008-01-284-8/+12
| | | | * control.c, procfs.c, symbols.c: Use DEFINE_SPINLOCK
* PR4037 and fixes to better synchronize staprun and stapio.hunt2008-01-156-84/+191
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* Add support for memory allocation tracking.hunt2008-01-157-33/+40
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* 2007-11-09 Masami Hiramatsu <mhiramat@redhat.com>hiramatu2007-11-092-0/+12
| | | | | | | | | | | | | | | | PR3858 * print.c: Add -DRELAY_HOST=<hostname> and -DRELAY_GUEST=<hostname> options support. (_stp_print_flush): Disable irqs if -DRELAY_* option is specified. * print_old.c: Export stp_print_flush to other modules if the -DRELAY_HOST option is specified. * print_new.c: Ditto. * transport.c (_stp_transport_init): Reduce relay buffer size to 64KB*2 if -DRELAY_GUEST is specified. * systemtap.printf/sharedbuf.exp: New test for buffer sharing option. * systemtap.printf/sharedbuf.stp: Ditto. * systemtap.printf/hello.stp: Ditto. * systemtap.printf/hello2.stp: Ditto.
* 2007-11-09 Martin Hunt <hunt@redhat.com>hunt2007-11-095-7/+25
| | | | | | | | | 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.
* 2007-11-01 Martin Hunt <hunt@redhat.com>hunt2007-11-015-33/+54
| | | | | | * procfs.c, control.c, transport.c: Recognize when stapio is detached and disable delayed work. Enable when attached. Cleanup code to destroy workqueue on exit.
* 2007-10-12 Martin Hunt <hunt@redhat.com>hunt2007-10-124-104/+472
| | | | | | | | | | * transport.c (_stp_ask_for_symbols): Don't ask for transport_info yet. Need to wait until symbols are received. (_stp_work_queue): Rename _stp_ready_q to _stp_ctl_ready_q. * procfs.c: Create a ".symbols" channel and use it for STP_MODULE and STP_SYMBOLS. Rename "cmd" channel to ".cmd". * control.c: Ditto.
* 2007-09-21 Martin Hunt <hunt@redhat.com>hunt2007-09-212-1/+5
| | | | | From Alan Brunelle * control.c (_stp_ctl_read_cmd): Cast count to an int before printing.
* 2007-09-20 Martin Hunt <hunt@redhat.com>hunt2007-09-203-5/+9
| | | | | * transport.h: Increase default buffer size. * control.c (_stp_ctl_read_cmd): Check buffer size.
* 2007-09-10 Martin Hunt <hunt@redhat.com>hunt2007-09-103-40/+22
| | | | | | | * procfs.c (_stp_register_ctl_channel): Call _stp_mkdir_proc_module(). (_stp_unregister_ctl_channel): Call _stp_rmdir_proc_module(). * transport.c: Include ../procfs.c runtime procfs functions.
* *** empty log message ***hunt2007-08-191-0/+7
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* 2007-08-17 Martin Hunt <hunt@redhat.com>hunt2007-08-173-1/+8
| | | | | | | | PR3857 From Masami Hiramatsu * utt.c (utt_subbuf_start_callback): Use overwrite flag. * control.c (_stp_ctl_open_cmd): Set overwrite_flag off. (_stp_ctl_close_cmd): Set overwrite flag on.
* 2007-08-14 David Smith <dsmith@redhat.com>dsmith2007-08-148-57/+186
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* 2007-07-26 Martin Hunt <hunt@redhat.com>hunt2007-07-262-1/+13
| | | | | | Spotted by Ming Chang. * procfs.c (_stp_register_ctl_channel): Fix iterator when removing proc entries when an error occurs.
* 2007-07-09 Martin Hunt <hunt@redhat.com>hunt2007-07-092-3/+19
| | | | | | * symbols.c (_stp_ins_module): Check for overflow of modules array. (_stp_do_module): If _stp_ins_module() fails, return an error.
* 2007-07-02 Martin Hunt <hunt@redhat.com>hunt2007-07-022-2/+80
| | | | | | * symbols.c (_stp_do_symbols): Set "data" pointer for kernel to _etext. (_stp_sort): New. sort function from the kernel. (_stp_load_module_symbols): Use _stp_sort().
* 2007-06-21 Martin Hunt <hunt@redhat.com>hunt2007-06-213-0/+12
| | | | | * control.c (_stp_ctl_write_cmd): Add support for STP_BULK. * transport_msgs.h (enum): Add STP_BULK.
* Fix mode in procfs cmd file.hunt2007-06-182-2/+2
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* 2007-06-18 Martin Hunt <hunt@redhat.com>hunt2007-06-182-1/+5
| | | | * control.c (_stp_register_ctl_channel): Fix mode of cmd file.
* * control.c: Explicit type cast for picky compilers.wcohen2007-05-162-1/+5
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* *** empty log message ***hunt2007-05-161-1/+1
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* 2007-05-15 Martin Hunt <hunt@redhat.com>hunt2007-05-162-7/+16
| | | | | | * control.c: Change default buffer number and size. (_stp_ctl_write): Add debug statements. Check size of message to avoid overwriting buffer.
* 2007-04-27 Martin Hunt <hunt@redhat.com>hunt2007-04-272-1/+1
| | | | * utt.h (struct utt_trace): Remove sequence.
* 2007-04-27 Martin Hunt <hunt@redhat.com>hunt2007-04-272-8/+11
| | | | | | | * utt.c (utt_trace_cleanup): Remove free of utt->sequence. (utt_dropped_open): PR 4415. Use STAPCONF_INODE_PRIVATE to detect correct inode struct. (utt_trace_setup): Do not allocate utt->sequence.
* 2007-04-02 Martin Hunt <hunt@redhat.com>hunt2007-04-024-20/+49
| | | | | | | | | | | | | | | * transport_msgs.h (struct _stp_msg_trans): Deleted. Transport parameters are now read from procfs. * transport.c (_stp_ask_for_symbols): STP_TRANSPORT message is empty. * procfs.c (_stp_ctl_open_cmd): New. Set _stp_ pid. (_stp_ctl_close_cmd): New. Unset _stp_pid. (_stp_proc_fops_cmd): Add pointers to above funcs. (_stp_ctl_read_bufsize): New. (_stp_register_ctl_channel): Create a proc read entry "bufsize" containing transport buffer sizes.
* 2007-03-28 Martin Hunt <hunt@redhat.com>hunt2007-03-283-0/+23
| | | | | | * control.c (_stp_ctl_open_cmd): Set _stp_pid. (stp_ctl_close_cmd): Clear _stp_pid. * transport.h: Declare _stp_pid;
* 2007-03-26 Frank Ch. Eigler <fche@elastic.org>fche2007-03-262-0/+5
| | | | * transport.c: Add #include <linux/namei.h> for lookup_one_len.
* 2007-03-26 Martin Hunt <hunt@redhat.com>hunt2007-03-269-63/+220
| | | | | | | | * 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.
* 2007-03-21 Martin Hunt <hunt@redhat.com>hunt2007-03-212-1/+9
| | | | | | | | | | | * sym.h: Declare _stp_module_relocate. * sym.c (_stp_module_relocate): Add comments, reformat, add a way for "last" cached values to be cleared when modules are removed. (_stp_symbol_print): Simplify and remove static buffer. (_stp_symbol_snprint): Ditto. * symbols.c (_stp_del_module): Add a call to _stp_module_relocate to clear its cache.
* 2007-03-20 Frank Ch. Eigler <fche@elastic.org>fche2007-03-212-0/+6
| | | | | | | | | | | | | | | | | | | | | | PR 4224. * tapsets.cxx (add_probe_point): Make kernel implicitly relocated relative to the _stext symbol. (dwarf_derived_probe ctor, emit_module_decls): Cooperate. (lookup_symbol_address): New function. (dwarf_builder::build): Call it thrice. (in_kprobes_function): Simplify. * session.h (systemtap_session): Rename cached symbol addresses. * translate.cxx, elaborate.cxx: Corresponding tweaks. 2007-03-20 Frank Ch. Eigler <fche@elastic.org> PR 4224. * sym.c (_stp_module_relocate): Support kernel relocations. 2007-03-20 Frank Ch. Eigler <fche@elastic.org> * symbols.c (_stp_do_symbols): Add cautionary blurb for important setup of _stp_modules[0]->text.
* 2007-03-20 Martin Hunt <hunt@redhat.com>hunt2007-03-202-6/+12
| | | | | * symbols.c (_stp_alloc_module): Fix up error cleanup when malloc fails.
* 2007-03-18 Martin Hunt <hunt@redhat.com>hunt2007-03-181-6/+5
| | | | | * stack.c, string.c, sym.c, transport/symbols.c: Fix some signed vs unsigned comparison warnings.
* 2007-03-14 Martin Hunt <hunt@redhat.com>hunt2007-03-1410-543/+915
| | | | | | | | | | | | | | | | * 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.
* 2007-03-12 Frank Ch. Eigler <fche@elastic.org>fche2007-03-122-18/+13
| | | | | | | | | | * librelay.c (init_stp): Use /proc/MODULE rather than /proc/systemtap/MODULE. 2007-03-12 Frank Ch. Eigler <fche@elastic.org> * procfs.c (_stp_register_procfs): Use /proc/MODULE rather than /proc/systemtap/MODULE.
* 2007-03-12 Frank Ch. Eigler <fche@redhat.com>fche2007-03-123-17/+39
| | | | | | | | | | | | | PR 4179. Based on patch from Vasily Averin <vvs@sw.ru>: * time.c (_stp_init_time): Recover from partial failures. 2007-03-12 Frank Ch. Eigler <fche@redhat.com> PR 4179. Based on patch from Vasily Averin <vvs@sw.ru>: * procfs.c (_stp_register_procfs): Recover from partial failures. * transport.c (_stp_transport_open): Ditto.
* 2007-01-30 Martin Hunt <hunt@redhat.com>hunt2007-01-302-8/+12
| | | | * symbols.c: Comment out many debug lines.
* 2007-01-29 Martin Hunt <hunt@redhat.com>hunt2007-01-294-7/+15
| | | | | | * procfs.c: Count allocated IO memory. * symbols.c: Use _stp_kmalloc() and _stp_kzalloc(). * transport.c: Count allocated IO memory.
* 2007-01-09 Martin Hunt <hunt@redhat.com>hunt2007-01-092-4/+10
| | | | | | * symbols.c (_stp_del_module): Fix so memory allocated for module 0 (kernel) is freed. (_stp_free_modules): No need to lock module list.
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