systemtap-steved/includes/sys, branch master

Add kprobe user probe semaphore handling.

2010-03-26T21:14:32+00:00

Adds stap_kprobe_process_found and stap_kprobe_mmap_found handlers
and then the task_finder uses those to set the semaphore values.
The probe adds user_path and user_lib which are used by the
task_finder to decide what object to sniff.

* sdt.h (STAP_SEMAPHORE): Also define for kprobes.
* tapsets.cxx (dwarf_derived_probe): Add user_path and user_lib.
(dwarf_derived_probe::join_group): Enable task finder for kprobes.
(dwarf_derived_probe::dwarf_derived_probe): Set user_path and
user_lib.
(dwarf_derived_probe_group::emit_module_decls): Emit
stap_kprobe_mmap_found, sdt_sem_offset, sdt_sem_address, pathname,
and finder declarations.  Emit stap_kprobe_process_found and
stap_kprobe_mmap_found.
(dwarf_derived_probe_group::emit_module_init): Setup task finder.
(sdt_query::convert_location): Remove TOK_LIBRARY token.
(dwarf_builder::build): Set user_path and user_lib.
(kprobe_derived_probe): Add path and library.
(kprobe_builder::build): Get process and library params

PR11427: port sdt.h to sparc

2010-03-24T16:07:39+00:00

* includes/sys/sdt.h (STAP_NOP): Add __sparc__ to list of "nop" users.

PR11364 sdt.h volatile for args isn't needed with gcc 4.5 or rh 4.4.3-10+

2010-03-17T14:41:02+00:00

Be pessimistic about the gcc version as debuginfo has an undependable case (RH572260).

2010-03-10T21:52:37+00:00

* sdt.h (GNUC_VERSION): Check against gcc 4.5.0

sdt.h: rename volatile-control macro to STAP_SDT_VOLATILE. Document in NEWS.

2010-03-10T16:18:11+00:00

Include __GNUC_RH_RELEASE__ in the volatile check.

2010-03-09T22:40:04+00:00

sdt.h (GNUC_VERSION) Include __GNUC_RH_RELEASE__.  Check for at least gcc 4.4.4

Check the gcc version using polynomial representation.

2010-03-09T19:57:41+00:00

* sdt.h (GNUC_VERSION): New.

Only use volatile for sdt.h arguments when needed.

2010-03-09T15:50:14+00:00

sdt.h (VOLATILE_ARG): gcc 4.4.3 support for inline asm
argument debug info means volatile is not needed.

Purge sdt utrace support.

2010-01-04T21:20:44+00:00

* sdt.h (UTRACE_SDT): Remove.
* tapset-utrace.cxx (utrace_derived_probe): Remove has_library and library.
(utrace_derived_probe_group::emit_probe_decl):  Remove mmap_callback,
sdt_sem_offset, and sdt_sem_address.
(utrace_derived_probe_group::emit_module_decls):  Remove sdt_sem_offset and
sdt_sem_address support.
* tapsets.cxx (sdt_var_expanding_visitor):  Remove utrace_probe.
(sdt_query::handle_query_module)  Remove utrace_type.
(sdt_query::convert_probe):  Likewise.
* postgres.exp: Remove utrace testing.
* sdt.exp:  Likewise.
* sdt_misc.exp:  Likewise.

Handle .probes section big endian 32 bit case.

2009-12-09T15:57:36+00:00

sdt.h (STAP_PROBE_ADDR): Add 32 bit big endian case.
 (STAP_PROBE_DATA_): Use .balign
tapsets.cxx (sdt_query::get_next_probe): Stop if there is no probe name.