systemtap-steved/runtime, branch master Unnamed repository; edit this file to name it for gitweb. Fixed uninitialized variable error in task_finder.c. 2010-04-13T16:35:37+00:00 David Smith dsmith@redhat.com 2010-04-13T16:35:37+00:00 7f7ef35a9e24055b96621f2b0f7c6405d4ae94fd * runtime/task_finder.c (__stp_call_mmap_callbacks_with_addr): Avoided uninitialized variable error. 
* runtime/task_finder.c (__stp_call_mmap_callbacks_with_addr): Avoided
  uninitialized variable error.
runtime: switch to deferred STP_EXIT signalling 2010-04-10T01:12:56+00:00 Frank Ch. Eigler fche@elastic.org 2010-04-10T01:12:56+00:00 bf17a5d2c707e8cd031d2a1dba2709b50452ba0c The former code allowed stapio to have two concurrent commands sent toward the runtime at the same time: one from the main loop and another one from the signal handling thread. This is suspected to have caused occasional lockups. This new code switches to a deferred signal handling model, where the signal handling thread merely increments a counter, and the main loop monitors that count. Unfortunately, this currently involves switching the main loop's blocking /.ctl read into a nonblocking poll. * runtime/staprun/mainloop.c (pending_interrupts): New variable. (signal_thread): Increment it. (stp_main_loop): Check it. 
The former code allowed stapio to have two concurrent commands sent
toward the runtime at the same time: one from the main loop and
another one from the signal handling thread.  This is suspected to
have caused occasional lockups.  This new code switches to a deferred
signal handling model, where the signal handling thread merely
increments a counter, and the main loop monitors that count.
Unfortunately, this currently involves switching the main loop's
blocking /.ctl read into a nonblocking poll.

* runtime/staprun/mainloop.c (pending_interrupts): New variable.
  (signal_thread): Increment it.
  (stp_main_loop): Check it.
runtime: more diagnostics for build-id checking 2010-04-08T21:17:46+00:00 Frank Ch. Eigler fche@elastic.org 2010-04-07T20:59:34+00:00 17b91441800b590c5ef4a0c213c2bbcd8deef696 * runtime/sym.c: Store individual rc's for build-id comparisons. 
* runtime/sym.c: Store individual rc's for build-id comparisons.
Fixed BZ 557165 by adding better error handling. 2010-04-05T15:55:57+00:00 David Smith dsmith@redhat.com 2010-04-05T15:55:57+00:00 e997043d5bc97969ccf26b171c23f2a5bbddfbd1 * runtime/staprun/mainloop.c (stp_main_loop): When a read error happens, quit instead of retrying (which can end up in an infinite loop). 
* runtime/staprun/mainloop.c (stp_main_loop): When a read error happens,
  quit instead of retrying (which can end up in an infinite loop).
Add kernel-writing functions for guru only 2010-04-01T22:21:05+00:00 Josh Stone jistone@redhat.com 2010-04-01T22:18:01+00:00 b70cb5c663255b46ece13e6758a5cb3e58d9a95c * runtime/loc2c-runtime.h (store_deref_string): New. * tapset/conversions-guru.stp (set_kernel_*): New guru functions. 
* runtime/loc2c-runtime.h (store_deref_string): New.
* tapset/conversions-guru.stp (set_kernel_*): New guru functions.
Sprinkle static to prevent unnecessary inclusion 2010-03-19T01:59:57+00:00 Josh Stone jistone@redhat.com 2010-03-19T01:59:57+00:00 4434d3386943bf32dc7873eafb7c7e6239a3c2a3 * runtime/stack.c (_stp_stack_print_tsk): Static. (_stp_stack_snprint_tsk): Static. * runtime/task_finder.c (__stp_utrace_task_finder_ops): Static. 
* runtime/stack.c (_stp_stack_print_tsk): Static.
  (_stp_stack_snprint_tsk): Static.
* runtime/task_finder.c (__stp_utrace_task_finder_ops): Static.
Create one perf structure to rule them all 2010-03-19T01:54:18+00:00 Josh Stone jistone@redhat.com 2010-03-19T01:54:18+00:00 34fe8ec416abfb4355fcb1a9a015de7c9dfc9380 * perf.h (stap_perf_probe): Define one structure for all our needs. * perf.c (_stp_perf_init): Use the new struct, return errors directly. (_stp_perf_exit): Use the new struct. * tapset-perfmon.cxx (perf_derived_probe_group::emit_module_decls): Use the stap_perf_probe definition from perf.h now. (perf_derived_probe_group::emit_module_init): Adapt. (perf_derived_probe_group::emit_module_exit): Adapt. 
* perf.h (stap_perf_probe): Define one structure for all our needs.
* perf.c (_stp_perf_init): Use the new struct, return errors directly.
  (_stp_perf_exit): Use the new struct.
* tapset-perfmon.cxx (perf_derived_probe_group::emit_module_decls): Use
  the stap_perf_probe definition from perf.h now.
  (perf_derived_probe_group::emit_module_init): Adapt.
  (perf_derived_probe_group::emit_module_exit): Adapt.
Remove <asm/segment.h> inclusion to fix ppc build. 2010-03-18T15:37:51+00:00 David Smith dsmith@redhat.com 2010-03-18T15:37:51+00:00 8496536f6ede3308e0d1cc6f1219e76ca262f1c0 * runtime/sym.c: Removed <asm/segment.h> include. That file doesn't exist on ppc, and it appears to be empty everywhere else. 
* runtime/sym.c: Removed <asm/segment.h> include.  That file doesn't exist
  on ppc, and it appears to be empty everywhere else.
PR909: filter out offline cpus from perfctr registration loop 2010-03-18T03:08:26+00:00 Frank Ch. Eigler fche@elastic.org 2010-03-18T03:08:26+00:00 654979ee0fc8d47bfd1680bc9e4c42ab2da78846 * runtime/perf.c (_stp_perf_init): If cpu_is_offline(), don't. 
* runtime/perf.c (_stp_perf_init): If cpu_is_offline(), don't.
Preserve perf initialization errors 2010-03-18T02:09:40+00:00 Josh Stone jistone@redhat.com 2010-03-18T02:06:56+00:00 5e0ae7b6e3fe6e739b03c3ab4ef675113e38350f * runtime/perf.c (_stp_perf_init): Pass through ERR_PTRs, and create our own -ENOMEM for allocation failures. * tapset-perfmon.cxx (perf_derived_probe_group::emit_module_init): Check IS_ERR for registration status. 
* runtime/perf.c (_stp_perf_init): Pass through ERR_PTRs, and create our
  own -ENOMEM for allocation failures.
* tapset-perfmon.cxx (perf_derived_probe_group::emit_module_init): Check
  IS_ERR for registration status.