summaryrefslogtreecommitdiffstats
path: root/tapsets.cxx
Commit message (Collapse)AuthorAgeFilesLines
* Use a wider cache for simple function lookupsJosh Stone2010-03-301-1/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When we have many individual function lookups, like the nearly 1000 with syscall.*, each one will iterate every CU in the module (M) and then do a cache lookup in N entries. That's a thousand MlogN lookups. We can instead keep the functions in a module-wide map, and then the complexity is just a thousand logMN lookups. Before: $ ./run-stap -l 'syscall.**' --vp 01 >/dev/null Pass 2: analyzed script: 793 probe(s), 11 function(s), 20 embed(s), 0 global(s) using 245872virt/147304res/78272shr kb, in 1390usr/60sys/1448real ms. After: $ ./run-stap -l 'syscall.**' --vp 01 >/dev/null Pass 2: analyzed script: 793 probe(s), 11 function(s), 20 embed(s), 0 global(s) using 246228virt/147616res/78276shr kb, in 720usr/60sys/782real ms. * dwflpp.cxx (dwflpp::iterate_single_function): Do a simple function lookup based on a module-wide cache. (dwflpp::mod_function_caching_callback): Helper for above. * tapsets.cxx (dwarf_query::query_module_functions): Query a single function from the module-wide cache. (dwarf_query::query_module_dwarf): Use above for simple cases.
* Remove unused code from iterate_over_functionsJosh Stone2010-03-301-2/+1
| | | | | | * dwflpp.cxx (dwflpp::iterate_over_functions): No caller is using has_statement_num anymore (since 6b517475), so kill it. * tapsets.cxx (query_cu): Let the default call rule the day.
* Add kprobe user probe semaphore handling.Stan Cox2010-03-261-20/+193
| | | | | | | | | | | | | | | | | | | | | | 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
* Print probepoint addresses in hexJosh Stone2010-03-251-28/+30
| | | | | | | | | | * staptree.h (literal_number): Add a bool "print_hex". * staptree.cxx (literal_number::print): Switch to hex if needed. * tapsets.cxx (dwarf_derived_probe::dwarf_derived_probe): Write the statement number component with a hex literal_number. (sdt_query::convert_location): Ditto (kprobe_derived_probe::kprobe_derived_probe): Ditto. (hwbkpt_derived_probe::hwbkpt_derived_probe): Ditto for data addr.
* PR11346: Move the skip-badvars logic into const-foldingJosh Stone2010-03-181-28/+11
| | | | | | | | | | | | | | | The const_folder is where we prune constant expressions, like conditionals based on a @defined($foo), so we want to give this a chance to work before skip-badvars comes in and throws a warning. As an added bonus, this makes skip-badvars more generic, so it will work even for non-dwarf $target variables. * elaborate.cxx (const_folder::visit_target_symbol): Enact skip-badvars. * tapsets.cxx (dwarf_var_expanding_visitor::visit_target_symbol): Don't worry about badvars here anymore. Save the error now, clean up later. * testsuite/semok/badvar_undefined.stp: Test that @defined with skip-badvars doesn't throw any warnings.
* Move the perf CONFIG checkJosh Stone2010-03-171-3/+1
| | | | | | | IMO, it's better to contain the CONFIG check inside the perf code. * tapsets.cxx (register_standard_tapsets): Always call perf register. * tapset-perfmon.cxx (register_tapset_perf): Do the CONFIG check here.
* Start of perf tapset parsingWill Cohen2010-03-171-0/+6
|
* Remove the old performance monitoring code.Will Cohen2010-03-171-2/+0
|
* PR10831: Remember derived "aliases" in the probe chainJosh Stone2010-03-161-63/+60
| | | | | | | | | | | | | SDT and label probes are not really final probe types themselves, but rather they get translated into some other final type. This patch preserves this relationship as if SDT and label probes were dynamically generated aliases. * elaborate.cxx (probe::create_alias): New, fake an alias_derived_probe. * tapsets.cxx (query_label): Append the label name as an alias. (sdt_query::handle_query_module): Let convert_location do the alias. (sdt_query::convert_location): Translate the location using an alias. * main.cxx (printscript): Elaborate the derivation debug dump.
* Add startswith/endswith helpersJosh Stone2010-03-111-10/+7
| | | | | Inspired by the Python equivalents, these new utility functions just make it a little cleaner to match at the beginning or end of a string.
* PR11352: Assign tokens to all SDT-synthesized elementsJosh Stone2010-03-061-11/+14
| | | | | | | * tapsets.cxx (sdt_query::convert_probe): Fix a few missing tokens. (sdt_var_expanding_visitor::visit_target_symbol): Ditto. * translate.cxx (c_unparser::record_actions): Add a defensive check, which perhaps someday can be an assertion instead.
* PR11346: Make @defined() independent of --skip-badvarsJosh Stone2010-03-041-3/+3
| | | | | * tapsets.cxx (dwarf_var_expanding_visitor::visit_target_symbol): Don't squash target_symbol errors in the operand of @defined().
* PR11246 cont'd: Add options for cache controlJosh Stone2010-03-021-2/+2
| | | | | | | | | | | | | | | | --disable-cache : turn off all caching --clean-cache : clean up stale entries and then quit --poison-cache : force regeneration of items that would have hit the cache These are undocumented for now, until we decide whether they are generally useful. * main.cxx (main): Parse the new options. * session.h (systemtap_session): Add poison_cache; document the others. * clean.cxx (clean_cache): No longer static. (get_stapconf_from_cache, get_script_from_cache): Respect poison. * tapsets.cxx (tracepoint_builder::get_tracequery_module): Ditto. (dwarf_cast_expanding_visitor::filter_special_modules): Ditto.
* Squash elision warnings on synthetic functionsJosh Stone2010-02-261-0/+3
| | | | | | | | | | | | | | * staptree.h (functiondecl): Add a synthetic flag. * elaborate.cxx (semantic_pass_opt1): Don't warn about synthetic funcs. * tapsets.cxx (dwarf_var_expanding_visitor::visit_target_symbol): Mark the new function as synthetic. (dwarf_cast_expanding_visitor::visit_cast_op): Ditto. (tracepoint_var_expanding_visitor::visit_target_symbol_arg): Ditto. * tapset-perfmon.cxx (perfmon_var_expanding_visitor::visit_target_symbol): Ditto. * tapset-procfs.cxx (procfs_var_expanding_visitor::visit_target_symbol): Ditto. * testsuite/semok/thirtyeight.stp: New check with -W and @defined.
* Expand the comment around @defined pass-throughJosh Stone2010-02-251-4/+6
|
* Expand @defined to support more casesJosh Stone2010-02-251-1/+6
| | | | | | | | * tapsets.cxx (var_expanding_visitor::visit_defined_op): If no error was raised or replacement made on a target_symbol, then its @defined state is still indeterminate. Some later pass (like @cast) might handle it. * elaborate.cxx (const_folder::visit_defined_op): Squash any escapees. * testsuite/semok/thirtysix.stp: Add more variants.
* PR11326: Make an early check for saved-return-$var validityJosh Stone2010-02-251-26/+43
| | | | | | | | | | We now check validity *before* the entry-probe is generated, so invalid $vars have a chance to be properly optimized without error. * tapsets.cxx (dwarf_var_expanding_visitor::visit_target_symbol_saved_return): Attempt variable expansion immediately, and skip out on failure. * testsuite/semok/thirtysix.stp: unblock the previously broken part.
* PR11005: @defined part 2: clarify/standardize internal handling of ↵Frank Ch. Eigler2010-02-251-227/+225
| | | | | | | | | | | | | | | | | unresolvable $variables * staptree.cxx (target_symbol::chain): New function. * staptree.h: Declare it. * (*): Use it instead of hand-chaining to target_symbol->saved_conversion_error. * tapset-mark.cxx (*::visit_target_symbol): Chain resolution error object, do not throw. * tapset-procfs.cxx (*::visit_target_symbol): Ditto. * tapset-utrace.cxx (*::visit_target_symbol): Ditto. * tapsets.cxx (*::visit_target_symbol): Ditto. (*::visit_defined_op): Explain & enforce the above. * testsuite/semok/thirtysix.stp: Expand. * testsuite/systemtap.base/sdt_misc.exp: Bonus fix: make work with blddir != srcdir.
* Merge branch 'master' of ssh://sources.redhat.com/git/systemtapFrank Ch. Eigler2010-02-231-6/+30
|\ | | | | | | | | | | | | | | | | | | | | | | * 'master' of ssh://sources.redhat.com/git/systemtap: PR10719 part 1: Partial constant folding Simplify null_statement construction Fixed PR 11269 by properly handling mmap syscall 'fd' argument. Removed rvalue operator check. PR 10690 (partial fix). Handle '.=' operator in procfs probes. Conflicts: tapsets.h
| * PR 10690 (partial fix). Handle '.=' operator in procfs probes.David Smith2010-02-231-6/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * tapsets.h (var_expanding_visitor): Add 'valid_ops' and 'op' member variables. * tapsets.cxx (var_expanding_visitor::var_expanding_visitor): Set 'valid_ops' to '='. By default, var_expanding_visitor classes only handle the '=' operator. (var_expanding_visitor::visit_assignment): Remember what operator we're handling. When an operator is found that isn't in the 'valid_ops' set, error. * tapset-procfs.cxx (procfs_var_expanding_visitor::procfs_var_expanding_visitor): Add '.=' to the 'valid_ops' set. (procfs_var_expanding_visitor::visit_target_symbol): Handle the '.=' operator when the target variable is an lvalue.
* | PR11005: @defined($tvar) predicate, part 1Frank Ch. Eigler2010-02-231-4/+94
|/ | | | | | | | | | | | | | | | | | * staptree.h (defined_op): New class. * all files: Extend all visitors as appropriate, mostly dummy/pass-through implementation. * parse.cxx (parse_target_symbol): New function, factored out of parse_symbol(). (parse_define_op): New function. * NEWS: Mention it. * parse.h: Corresponding changes. * tapsets.cxx (var_expanding_visitor::visit_defined_op): Implement @defined() semantics. (dwarf_var_expanding_visitor::visit_target_symbol): Adjust. * tapset-utrace.c (visit_target_symbol_arg): Avoid crashes on $argZZZ. * tapsets.cxx (sdt_var_expanding_visitor): Ditto. * semok/thirtysix.stp: New test.
* hwbkpt: simplify diagnostics and codeFrank Ch. Eigler2010-02-211-103/+80
| | | | | | | | | | | * tapsets.cxx (hwbkpt_derivedc_probe_group): Lose max_... field. Rename hwbkpt_probes_vector -> hwbkpt_probes. (enroll): Instead set it here, emit normal suppressible warning if exceeded. (emit_*): Use newline(NN) etc. for proper indentation of generated code. (emit_module_init): Defer most potential problems to register_wide_hw_breakpoint() instead of preemptive errors. * translate.cxx (emit_module_init): Assert 0 indentation more frequently.
* Translator enablement of Hardware breakpoints for s390Prerna Saxena2010-02-211-2/+16
|
* hardware breakpoints: improve error messages for unsupported configurationsFrank Ch. Eigler2010-02-191-17/+22
| | | | | | * tapsets.cxx (hwbkpt_builder::build): Assert needed kernel_configs here, instead of.. (register_standard_tapsets): ... here.
* Rework identification of probes allowed for unprivileged users.Dave Brolley2010-02-151-38/+89
| | | | | | | - Bind unprivileged permission at probe registration time. - Remove check_unprivileged filter from derived_probe_builder and its children. - Add test suites for unprivilegedok and unprivilegedko.
* PR11256: harden --unprivileged modeFrank Ch. Eigler2010-02-051-26/+11
| | | | | | | | * tapsets-mark.cxx, tapsets.cxx: Don't even publish probe point families that are inappropriate for use in --unprivileged mode. (dwarf_derived_probe_*unprivileged*): Remove, to default to blanket no-permission rather than emit_process_owner_permission mode. * testsuite/semko/fortyeight.stp: New test.
* rhbz 560890: preserve -L/-l variable orderingNobuhiro Tachino2010-02-021-9/+9
| | | | | | Switch to list<string> from set<string> for collecting available $var lists. Use O(N**2) list-uniqueifier that preserves initial ordering.
* Remove unused variable argstreamWenji Huang2010-02-021-1/+0
|
* Hardware Breakpoints for x86 / x86_64, based on mainline kernel. [Changes : ↵Prerna Saxena2010-01-291-3/+355
| | | | Part 2]
* Fix the listing mode of process.library.markJosh Stone2010-01-181-1/+1
| | | | | | | | | Our hack for producing nicer listing modes was to write the mark name in component index 1. That's fine for process.mark, but writes the wrong position for process.library.mark. It now munges the last probe component of any number of indexes. (A better fix is due in PR10831, preserving the derivation chain.)
* PR11173 Markers get a bad address in prelinked libraries.Mark Wielaard2010-01-181-2/+9
| | | | | | | | | | | | | Our literal_addr_to_sym_addr() function was just wrong. To compensate for raw addresses read from elf (either given by the user or through a mark transformation) we need to know what the elf_bias is (as returned by dwfl_module_getelf) before feeding them to any libdwfl functions. * tapsets.cxx (query_module_dwarf): Always add elf_bias to raw function or statement addresses before calling query_addr(). (query_addr): Don't call literal_addr_to_sym_addr(). * dwflpp.h (literal_addr_to_sym_addr): Removed. * dwflpp.cxx (literal_addr_to_sym_addr): Likewise.
* PR11151: Recover stap_uprobes slots on process exitJosh Stone2010-01-141-0/+1
| | | | | | | | | | When a process exits, it won't necessarily bother to munmap all of its shared libraries. This patch makes sure that with uprobes in libraries, we still grab an exit notification and clear everything out. * runtime/uprobes-common.c (stap_uprobe_process_munmap): New. * tapsets.cxx (uprobe_derived_probe_group::emit_module_decls): Use above callback so that we can recover our resources on process exit.
* Merge branch 'master' of ssh://sources.redhat.com/git/systemtapWilliam Cohen2010-01-131-2/+2
|\
| * Use __access_process_vm_noflush for static user semaphore decrement.Stan Cox2010-01-131-2/+2
| | | | | | | | | | | | * access_process_vm (__access_process_vm_noflush): New * tapsets.cxx (uprobe_derived_probe_group::emit_module_exit): Use it. * translate.cxx (translate_pass): Declare it.
* | Move userspace probing boiler plate code in translator to runtime library.William Cohen2010-01-131-357/+10
|/
* Pull set of semaphore into its own function.Stan Cox2010-01-101-53/+85
| | | | | | | | | | | | | | * tapsets.cxx (uprobe_derived_probe_group::emit_module_decls): Move sdt_sem_address from standalone to stap_uprobes. Remove sdt_sem_tid. In emitted function stap_uprobe_change_plus distinguish VM_EXEC/VM_WRITE cases, use sdt_sem_address member, move setting of semaphores to new emitted function stap_uprobe_change_semaphore_plus. (stap_uprobe_process_found): Call stap_uprobe_change_semaphore_plus. (stap_uprobe_mmap_found): Likewise. * stap-postgres.stp (postgresrelease): New. Sync to current upstream version. * stap-tcl.sh: Check if wget failed. * stap-tcl.stp: Check for skipped probes. * xulrunner.exp: Check if wget failed.
* tracepoints build fixFrank Ch. Eigler2010-01-091-0/+3
| | | | | | | | * tapsets.cxx (emit_module_decls): #undef TRACE_INCLUDE_FILE in front of each #include'd trace/event header, to prevent macro redefinition. (init_dw): Respect pending_interrupts in traceprobe module compilation loop.
* Merge remote branch 'origin/master'Tim Moore2010-01-051-52/+25
|\
| * Purge sdt utrace support.Stan Cox2010-01-041-52/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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.
* | bz6436 backtraces from uprobesTim Moore2010-01-051-0/+1
|/ | | | | | | | | | | | | | | | | | | | | This implements proper unwinding from uprobes in the presence of uretprobe trampolines. * runtime/stack.c (_stp_stack_print): Rework for uprobe context case and refactor a bit. * runtime/uprobes2/uprobes.h (GET_PC_URETPROBE_NONE): new constant * runtime/uprobes2/uprobes.c (uprobe_get_pc): Support translating the trampoline function from uprobe context in addition to uretprobe context. * runtime/uprobes/uprobes.h (GET_PC_URETPROBE_NONE): ditto * runtime/uprobes/uprobes.c (uprobe_get_pc): ditto * tapsets.cxx (uprobe_derived_probe_group::emit_module_decls): Initialize ri in context to GET_PC_URETPROBE_NONE in generated enter_uprobe_probe. * testsuite/systemtap.context/fib.stp: Add an option to do a backtrace on function entry. * testsuite/systemtap.context/fib.exp: Test backtrace in function entry (uprobe) probes.
* sdt.h semaphore: use get_user / put_user instead of __access_process_vm.Frank Ch. Eigler2009-12-221-5/+5
| | | | | | * translate.cxx (translate_pass): Don't #include <access_blah.> * tapsets.cxx, tapset-utrace.cxx: Replace __access_process_vm() calls with get_user() / put_user() respectively.
* PR11015 Support shared library reloading (in different processes)Mark Wielaard2009-12-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * runtime/task_finder_vma.c (stap_remove_vma_map_info): Return negative status on failure. (stap_find_vma_map_info): Likewise. (stap_find_vma_map_info_user): New function. (stap_drop_vma_maps): New function. * runtime/sym.h (addr): Renamed to static_addr, to store addresses for sections which are always mapped at the same address. (_stp_module_relocate): Add extra struct task_struct *tsk argument. * runtime/sym.c (_stp_tf_exec_cb): New callback, calls stap_drop_vma_maps. (_stp_tf_mmap_cb): Don't store address in module.section, but call stap_add_vma_map_info() per tsk->group_leader for matched module. Don't register empty/null modules. (_stp_module_relocate): Take extra struct task_struct *tsk argument, cache last tsk used. Only use section->static_addr for none dynamic modules. Use stap_find_vma_map_info_user() to locate dynamic modules. (_stp_mod_sec_lookup): Add extra argument unsigned long *rel_addr to optionally store relative address when module/section found. (_stp_kallsyms_lookup): Use _stp_mod_sec_lookup to find relative address. (_stp_sym_init): Register _stp_tf_exec_cb in stap_task_finder_target. Add error check to see if task finder could be initialized. * dwflpp.cxx (emit_address): Pass NULL for kernel/modules and current for user tasks to _stp_module_relocate. * runtime/transport/symbols.c (_stp_do_relocation): Set new static_addr _stp_section field. * runtime/unwind.c (adjustStartLoc): Take new struct task_struct *tsk argument and pass to stap_find_vma_map_info_user and _stp_module_relocate to find adjusted addr. (_stp_search_unwind_hdr): Pass through struct task_struct *tsk. (unwind_frame): Likewise. * tapset/context-symbols.stp (probemod): Add NULL to _stp_mod_sec_lookup call to indicate we aren't interested in relative address. * tapsets.cxx (dwarf_derived_probe_group::emit_module_init): Pass NULL to _stp_module_relocate to indicate kernel/module address.
* PR10601: unfork deref()Frank Ch. Eigler2009-12-201-6/+0
| | | | | * runtime/loc2c-runtime.h: Remove k_ vs u_[store_]deref; share instead. * tapsets.cxx: Remove k_ vs u_ redirection for *deref().
* PR10601 part 1: i386 and x86-64 regset for dwarf fetch/store_register()sFrank Ch. Eigler2009-12-201-5/+38
| | | | | | | | | | * runtime/loc2c-runtime.h (fetch_register, store_register): forked into k_ (kernel) and u_ (user) varieties. Implement i386 and x86_64 in terms of regset.h; fall back to k_* for other architectures. * tapsets.cxx: (*::visit_target_symbol): Emit macros to map loc2c's fetch/store_register to loc2c-runtime's k_ or u_ as appopriate.
* Recalculate sem address when tid changes.Stan Cox2009-12-191-1/+7
| | | | | * tapsets.cxx (uprobe_derived_probe_group::emit_module_decls): Emit sdt_sem_tid. Use it to recalculate sem address when task changes.
* Remove uprobes.h declaration from runtime.hTim Moore2009-12-181-0/+10
| | | | | | | | | | | Turns out that it breaks on kernels that don't have utrace. * runtime/runtime.h : Don't include uprobes.h * runtime/stack.c: Include uprobes.h * runtime/stack-i386.c: Check if uprobes is included at all. * runtime/stack-x86_64.c: ditto * tapsets.cxx (uprobe_derived_probe_group::emit_module_decls): put uprobes.h include back in.
* set the IP in return probes to the returned-to instructionTim Moore2009-12-161-12/+11
| | | | | | | | | | | | | | | | | | | | | | | | It's easily available in kretprobes and uretprobes and is consistent with the rest of the program state. * translate.cxx (emit_common_header) : add uretprobe_instance to context. * tapsets.cxx (common_probe_entryfn_prologue): Initialize ri in context to 0. (dwarf_derived_probe_group::emit_module_decls): Change IP to return address in kretprobes. (uprobe_derived_probe_group::emit_module_decls): enter_uretprobe_probe: set ri (uretprobe_instance) in context. Change IP to return address in uretprobes. Don't emit uprobe include and #define * runtime/runtime.h : Add includes and #define for uprobes. * runtime/stack.c (_stp_stack_print, _stp_stack_snprint): Add extra argument for uretprobe_instance. * tapset/context-unwind.stp (print_backtrace, backtrace): Pass NULL for uretprobe_instance to _stp_stack_print. * tapset/ucontext-unwind.stp (print_ubacktrace, ubacktrace): pass uretprobe_instance to _stp_stack_print * testsuite/systemtap.context/uprobe_uaddr.exp : new test for uaddr in function probes * testsuite/systemtap.context/uprobe_uaddr.stp : new file
* Fix handling of multiple sdt uprobes with the same name.Stan Cox2009-12-151-8/+18
| | | | | tapsets.cxx (sdt_query::handle_query_module): Improve trace handling. (sdt_query::convert_location): Create new component instead of reusing old.
* Handle .probes section big endian 32 bit case.Stan Cox2009-12-091-1/+9
| | | | | | 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.
* Add .library("lib").mark("mark") and use it for .mark semaphores.Stan Cox2009-12-081-66/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | tapset-utrace.cxx (TOK_LIBRARY): New. (utrace_derived_probe::utrace_derived_probe): Add library and has_library. (utrace_builder::build): Handle library. (utrace_derived_probe_group::emit_probe_decl): Add sdt_sem_offset to emitted stap_utrace_probes. Add stap_task_finder_target mmap_callback for handling shared library. Handle sdt_sem_offset in emitted_stp_utrace_probe_cb. Add stap_utrace_mmap_found. (register_tapset_utrace): Handle .library tapset-utrace.cxx (TOK_LIBRARY): New. (base_query::base_query): Add path and has_library. (dwarf_derived_probe::dwarf_derived_probe) Likewise. (dwarf_derived_probe::register_patterns): Handle .library (sdt_query::convert_location): Likewise. (dwarf_builder::build): Likewise. (uprobe_derived_probe_group::emit_module_decls): Emit sdt_sem_address. Add sdt_sem_offset to emitted stap_uprobe_spec. Add offset and vm_flags to signature of stap_uprobe_change_plus, and handle sdt_sem_offset. Allow writeable segments in emitted stap_uprobe_mmap_found. sdt_misc.exp: Test .library util.cxx (find_executable): Add env_path to sig and use it in getenv. util.h (find_executable): Likewise. Make "PATH" the default. dtrace.in (provider): Turn on semaphores. sdt.h: Likewise.
generated by cgit (git 2.34.1) at 2024-05-30 20:50:22 +0000