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* tracepoint probes: clear session derived_probe_groups pointer in ctor to ↵Frank Ch. Eigler2009-03-082-0/+3
| | | | avoid SEGV
* Check pending_interrupts more frequently during unwindsyms (pass 3) processingFrank Ch. Eigler2009-03-081-0/+3
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* Adapt to linux-next commit changing __alloc_percpu API.Frank Ch. Eigler2009-03-083-22/+10
| | | | | After linux-next commit f2a8205c, it takes two parameters again, so we autoconf for it rather than use KERNEL_VERSION ifdefs.
* Minor changes to labels.exp.Stan Cox2009-03-081-6/+6
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* Fix and add tests for function(".so").statement(N)Stan Cox2009-03-082-6/+86
| | | | | | | | * tapsets.cxx (query_dwarf_func): die_has_pc (dwarf_haspc) does not expect a module_start for shared objects so don't call module_address_to_global for the statement address. * testsuite/systemtap.base/labels.exp: Add tests for executable .statement(N), shared object .label("L") and so .statement(N).
* PR9930: reentrancy debuggingFrank Ch. Eigler2009-03-071-38/+35
| | | | | | | | | If stap is run with "-t -DDEBUG_REENTRANCY", additional warnings will be printed for every reentrancy event, including the probe points of the resident and interloper probes. * tapsets.cxx (common_probe_entryfn_prologue): Add "new_pp" argument, update all callers. Print reentrancy details if needed.
* Add placeholder for new newsFrank Ch. Eigler2009-03-071-0/+2
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* Tweak tracepoint logic to run on tracepoint_synchronize_unregister()-less RHEL5Frank Ch. Eigler2009-03-072-4/+18
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* Merge branch 'tracepoints'Josh Stone2009-03-065-21/+861
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| * Document TRACEPOINTS in stapprobes(5)Josh Stone2009-03-061-0/+36
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| * Ensure tracepoints are synchronized after unregJosh Stone2009-03-061-0/+4
| | | | | | | | | | | | | | | | | | | | The tracepoint API provides tracepoint_synchronize_unregister() as a way to guarantee that all tracepoint handlers are inactive. This is necessary after unregistering to allow the module to safely unload. * tapsets.cxx (tracepoint_derived_probe_group::emit_module_init): Call synchronize after unregistering tracepoints. (tracepoint_derived_probe_group::emit_module_exit): Ditto.
| * Support older tracepoints using DEFINE_TRACEJosh Stone2009-03-061-0/+5
| | | | | | | | | | | | | | | | | | At one point, the tracepoints API didn't have DECLARE_TRACE, and the trace headers all used DEFINE_TRACE. This is what got pulled into RHEL, so we need to support this older usage. The rest of the API stays the same though. * buildrun.cxx (make_tracequery): Redefine DEFINE_TRACE as well.
| * Enable tracepoint target variablesJosh Stone2009-03-061-3/+338
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This uses a similar mechanism as marker probes for storing target variables in locals of the probe body. * tapsets.cxx (tracepoint_arg): Add fields to help $target access. (tracepoint_var_expanding_visitor): Expand code to access target variables - a $target for each tracepoint parameter, as well as the special $$name and $$vars. (tracepoint_derived_probe::tracepoint_derived_probe): Expand targets (resolve_tracepoint_arg_type): Determine if a parameter is a type that we can dereference, and store the underlying type. (tracepoint_derived_probe::build_args): Resolve the types. (tracepoint_derived_probe::emit_probe_context_vars): Emit $target placeholders into the locals of the probe body. (tracepoint_derived_probe_group::emit_module_decls): Initialize $targets from the entry point parameters.
| * Emit code to hook up tracepoint probesJosh Stone2009-03-061-4/+157
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * tapsets.cxx (tracepoint_arg): New (tracepoint_derived_probe): Add declaring header name and arg vector (dwarf_type_name): Build a type string for a given type DIE (tracepoint_derived_probe::build_args): Scan the function DIE for the name and type of formal parameters required by the tracepoint. (tracepoint_derived_probe::tracepoint_derived_probe): Call build_args and determine the relevant header to include. (tracepoint_derived_probe_group::emit_module_decls): For each tracepoint, include its header and declare a probe entry point with the right function signature. (tracepoint_derived_probe_group::emit_module_init): Call the registration for each tracepoint, and handle error unwinding. (tracepoint_derived_probe_group::emit_module_exit): Unregister each.
| * Build skeleton tracepoint probesJosh Stone2009-03-061-4/+79
| | | | | | | | | | | | * tapsets.cxx (tracepoint_derived_probe): Create a skeleton probe (tracepoint_derived_probe_group): Create a skeleton group (tracepoint_query::handle_query_func): build a probe
| * Scan tracequery.ko for tracepointsJosh Stone2009-03-061-1/+79
| | | | | | | | | | | | | | * tapsets.cxx (tracepoint_query): Iterate over the modules, CUs, and functions in tracequery.ko looking for our hijacked tracepoint declarations. (tracepoint_builder::build): Run a tracepoint_query
| * Build tracequery to scan for tracepointsJosh Stone2009-03-064-0/+155
| | | | | | | | | | | | | | | | | | | | * session.h (systemtap_session): add tracepoint_derived_probes * buildrun.cxx (make_tracequery): New - builds a kernel module that hijacks the tracepoint declarations, so we can query debuginfo. * buildrun.h: declare above * tapsets.cxx (tracepoint_builder): New builder for tracepoint probes. For now it just handles the initialization to build the tracequery kernel module.
| * Make iterate_over_functions work with base_querysJosh Stone2009-03-061-14/+17
| | | | | | | | | | | | | | | | | | | | * tapsets.cxx (dwflpp::iterate_over_functions): Change arg from void* to base_query*, and add explicit function-search parameters. (query_cu): update caller (query_dwarf_func): update callback signature (Note: instead of passing around callback functions, it might be nicer to use a virtual method in base_query...)
| * Make session.module_cache init more consistentlyJosh Stone2009-03-041-7/+3
| | | | | | | | | | | | | | | | | | We used to check & init module_cache in a few inconsistent places. Now it is always handled in dwflpp::setup_user/setup_kernel. * tapsets.cxx (dwflpp::setup_user): add module_cache check (dwarf_builder::build): remove module_cache check (dwarf_cast_expanding_visitor::visit_cast_op): ditto
* | Update AUTHORSJosh Stone2009-03-061-0/+2
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* | STAP_PROBE takes no extra arguments.Mark Wielaard2009-03-061-2/+2
| | | | | | | | * includes/sys/sdt.h (STAP_PROBE): Don't add __VA_ARGS__.
* | Create unique named labels.Stan Cox2009-03-061-65/+94
| | | | | | | | | | * includes/sys/sdt.h (STAP_PROBEN_): New macros that take advantage of __COUNTER__
* | PR9871: use @cast in tapsetWenji Huang2009-03-067-348/+269
| | | | | | | | | | | | | | | | Rewrite some functions using type casting to get rid of embedded C code in nfs, scsi, signal, socket, rpc, task and vfs tapset. Signed-off-by: Wenji Huang <wenji.huang@oracle.com>
* | added more content for tapset devddomingo2009-03-061-2/+86
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* | added markers, for publicanization purposesddomingo2009-03-051-4/+5
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* | new intro, tapset dev guideddomingo2009-03-052-0/+92
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* | removes marked range of strings (intro) and replaces with Intro and Tapset ↵ddomingo2009-03-051-4/+21
| | | | | | | | Dev Guide
* | added invisible marker for publicanddomingo2009-03-051-8/+10
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* change to fedora, add README for more infoddomingo2009-03-052-1/+36
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* change to fedoraddomingo2009-03-051-4/+8
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* add other required XMLsddomingo2009-03-054-0/+82
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* add imagesddomingo2009-03-051-0/+3936
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* add Makefileddomingo2009-03-051-0/+15
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* function instead of (sfunction)ddomingo2009-03-051-1/+1
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* added other required filesddomingo2009-03-051-0/+17
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* Fix typo in kernel version check 2.6.21 -> 2.6.11 in inet_sock.Mark Wielaard2009-03-041-2/+2
| | | | | * tapset/inet_sock.stp (inet_get_local_port): Fix kernel version check. (inet_get_ip_source): Likewise.
* stap autoconf test for kernel stack trace supportTim Moore2009-03-045-6/+29
| | | | | | | | | | * buildrun.cxx (compile_pass): Add autoconf line for stack trace test, which defines STAPCONF_KERNEL_STACKTRACE. * runtime/autoconf-save-stack-trace.c: New file. * runtime/stack.c : Use STAPCONF_KERNEL_STACKTRACE instead of tests for kernel configuration and versions. * runtime/stack-i386.c : ditto * runtime/stack-x86_64.c : ditto
* PR9919: Set last_stmt for array (scalar or statistical) assignments.Mark Wielaard2009-03-043-2/+56
| | | | * translate.cxx (visit_arrayindex): Update last_stmt.
* change stap-report to a plain /bin/sh script; support dkpg in addition to rpmFrank Ch. Eigler2009-03-031-24/+19
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* Search for a label instead of an address for .so static probes.Stan Cox2009-03-031-1/+4
| | | | * tapsets.cxx (dwflpp::build): Use .label for .so instead of .statement(N)
* This patch updates the itrace code to support the new utrace interface.Maynard Johnson2009-03-032-29/+118
| | | | | It also adds a private copy of access_process_vm to runtime/itrace.c since that function is not consistently exported by all distros.
* PR9875: Remove sduprobesWenji Huang2009-03-034-166/+31
| | | | | | | | | | | | Impact: cleanup Since sdt.h is in git tree, sduprobes is no longer needed. * Makefile.am: Remove sduprobes. * Makefile.in: Regenerated. * doc/Makefile.in: Ditto. * runtime/sduprobes.c: Removed. Signed-off-by: Wenji Huang <wenji.huang@oracle.com>
* Allow the same static user probe to be used multiple times per line.Stan Cox2009-03-022-15/+50
| | | | | * dtrace (provider): Add STAP_PROBE10. * includes/sys/sdt.h: Likewise. Convert labels to __label__
* added publicanizer for langrefddomingo2009-03-028-0/+4229
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* minor revision, added tagddomingo2009-03-021-2/+2
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* Merge branch 'master' of git+ssh://sources.redhat.com/git/systemtapEugeniy Meshcheryakov2009-02-285-46/+46
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| * Use @cast where possible for examining inet_sock.Mark Wielaard2009-02-271-25/+25
| | | | | | | | | | | | | | * tapset/inet_sock.stp: Remove includes. (inet_get_local_port): No embedded C, use @cast. (inet_get_ip_source): Likewise. (daddr_to_string): New function, still some embedded C used.
| * Remove unnecessary embedded C include.Mark Wielaard2009-02-271-4/+0
| | | | | | | | * tapset/networking.stp: Remove include.
| * Guard _struct_sigaction32_u with ifdef CONFIG_COMPAT.Mark Wielaard2009-02-251-0/+2
| | | | | | | | | | * tapset/aux_syscalls.stp (_struct_sigaction_u): Only needed and compiles when CONFIG_COMPAT defined.
| * PR9896: Fix SystemTap build on Ubuntu Intrepid.Ananth N Mavinakayanahalli2009-02-251-2/+2
| | | | | | | | The gcc on Ubuntu doesn't like fprintf() without format arguments