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* tapsets.cxx (*::emit_[de]registrations): Add logic for probe
lifecycle control (session_state).
* translate.cxx (emit_common_header,emit_module_{init,exit}): Ditto.
(visit_*): Use per-context errorcount.
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* elaborate.cxx
(semantic_pass_symbols): Only enter body if non-null.
(semantic_pass_types): Likewise.
(semantic_pass): Pass session to register_standard_tapsets.
* translate.cxx
(builtin_collector): New struct.
(hookup_builtins): New function.
(translate_pass): Only translate functions with bodies.
(c_unparser::emit_common_header): Likewise, and call hookup_builtins.
* tapsets.hh (builtin_function): New class.
(register_standard_tapsets): Change parameter to session.
* tapsets.cc (bultin_function::*): Implement class.
(register_standard_tapsets): Register printk, log, warn.
* testsuite/transok/six.stp: New test.
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* elaborate.{h,cxx}: Revert previous changes.
* tapsets.{h,cxx}: Adapt to verbose as a member of session.
* elaborate.cxx (alias_expansion_builder::build): Avoid copying
locals between alias definition and use.
* testsuite/semok/{twelve,thirteen,fourteen}.stp: New tests.
* staptree.cxx (probe_alias::printsig): Print equals sign.
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* elaborate.h (systemtap_session): Add more command-line arguments.
* staptree.h (verbose): Bad global, no donut.
* elaborate.cxx: Temporarily disable verbose variable access.
* main.cxx: Support more arguments, build/run passes. Revamp
temporary file generation and partial-pass output generation.
* tapsets.cxx, translate.cxx: Emit just enough extra punctuation
and fluff to make generated probe pass -Werror.
* buildrun.cxx, buildrun.h: New files for passes 4/5. Partial
support for build pass, nothing on probe execution yet.
* testsuite/transok/*.stp: Force just -p3, now that -p4/5 exist.
* Makefile.am, Makefile.in: Corresponding changes.
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* staptree.{h,cxx} (probe_alias): New structure.
* parse.{h,cxx} (parser::parse): Parse probes or probe aliases.
(parser::parse_probe): Likewise.
* tapsets.{h,cxx}:
(derived_probe_builder):
(match_key):
(match_node):
(alias_derived_probe): Move from here,
* elaborate.{h,cxx}: to here.
* elaborate.h (systemtap_session::pattern_root): New member.
(register_library_aliases): New function.
* tapsets.cxx: Build one dwarf_derived_probe per target address.
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* tapsets.cxx
(probe_type): New enum.
(probe_spec): New struct.
(dwarf_derived_probe): Reorganize a bit, interpret .return.
(query_statement): Translate addresses back to module space.
(probe_entry_function_name):
(probe_entry_struct_kprobe_name):
(foreach_dwarf_probe_entry):
(declare_dwarf_kernel_entry):
(deregister_dwarf_kernel_entry):
(register_dwarf_kernel_entry):
(register_dwarf_module):
(declare_dwarf_module_entry):
(deregister_dwarf_module_entry):
(register_dwarf_module_entry): New functions.
(dwarf_derived_probes::emit_probe_entries):
(dwarf_derived_probes::emit_registrations):
(dwarf_derived_probes::emit_deregistrations): Implement.
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* config.in, configure: Regenerated.
* tapsets.cxx: Make dwarf code conditional on new elfutils header.
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* configure.ac: Scan for libdwfl.
* staptree.h (verbose): New global.
* main.cxx (usage, main): Implement -v option.
* tapsets.cxx (dwflpp): New struct.
(query_statement): New function.
(query_function): New function.
(query_cu): New function.
(query_module): New function.
(dwarf_derived_probe): Implement primary forms.
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* tapsets.h: New file.
(derived_probe_builder): Callback for making derived probes.
(match_key): Component of pattern-matching tree.
(match_node): Other component of pattern-matching tree.
* tapsets.cxx: Add pattern-matching system for probes.
(alias_derived_probe): Skeleton for alias probes.
(dwarf_derived_probe): Skeleton for dwarf probes.
(register_standard_tapsets): Registry for standard tapsets.
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Start separating out translator-side probe point recognition.
* tapsets.cxx: New file.
(be_derived_probe): Support for begin/end probes.
(derive_probe): Ditto. Reject anything unrecognized.
* translator.cxx: Move out old code.
* Makefile.am: Add new source file.
* testsuite/semok/*: Switch to begin/end probes only.
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