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| * | PR9953: split up the two process.* tapsetsJosh Stone2009-04-1415-61/+67
| | | | | | | | | | | | | | | | | | | | | The overlapping process.* tapsets are now separated. Those probe points documented in stapprobes(3stap) remain the same. Those that were formerly in stapprobes.process(3stap) have been renamed to kprocess, to reflect their kernel perspective on processes.
| * | Adjust NEWS indentationJosh Stone2009-04-141-14/+14
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| * | Make tcpdumplike.stp executableJosh Stone2009-04-141-0/+2
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| * | Add Andre Detsch to AUTHORSJosh Stone2009-04-141-0/+1
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| * | Add new TCP and IP functionsAndre Detsch2009-04-143-0/+152
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds some basic functions to the IP and TCP tapsets. Mainly, it's possible to get the iphdr and tcphdr from a sk_buff structure. As a consequence, a TCP probe called tcp.receive() was created and is probed every time a TCP packet is received, and a lot of useful fields is available, as the TCP flags. Also a small example that works like tcpdump for received TCP packets was created. This patch was tested on x86 and ppc machines, on 2.6.18 kernel and also on mainline one. Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by: Andre Detsch <adetsch@br.ibm.com> Signed-off-by: Josh Stone <jistone@redhat.com>
| * | PR10070: don't warn about side-effect-free probes in -t (timing) modeFrank Ch. Eigler2009-04-141-1/+2
| | | | | | | | | | | | * elaborate.cxx (semantic_pass_opt4): Filter warning on s.timing.
| * | PR10067: fix bitfield accessJosh Stone2009-04-134-7/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | * tapsets.cxx (dwflpp::translate_components): Eliminate the extra die-dereference at the end of the loop (a regression from @casts). * runtime/loc2c-runtime.h (store_bitfield): Use the target as the representative type, since the base is always int64_t. Also be a bit more aggressive with masking and parentheses. * testsuite/systemtap.base/bitfield.*: New test for R/W bitfields.
| * | PR10049: Restore better errors for $returnJosh Stone2009-04-131-10/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit c4ce66a1 I shifted some of the variable accesses around, and that caused the error messages for $return variables to lose context. The root problem in this case was that dwarf_attr didn't find the type attribute, and that failure wasn't immediately caught. Now that result is checked so we can provide a proper error message. While I'm at it, changing that lookup to dwarf_attr_integrate is enough to make the $return value usable again, at least for the reported test case.
| * | Improve -l output for .labelStan Cox2009-04-132-6/+30
| | | | | | | | | | | | | | | | | | * tapsets.cxx (iterate_over_cu_labels): Treat -l specially so the output of a .label can be improved. * labels.stp: Test -l
| * | add a spaceEugeniy Meshcheryakov2009-04-131-1/+1
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| * Make stmt_rel.exp have good compatibilityWenji Huang2009-04-091-1/+3
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| * Cleanup symbol table sanity checking.Mark Wielaard2009-04-091-16/+29
| | | | | | | | | | | | * translate.cxx (dump_unwindsyms): Get and check against module end, only check STT_FUNC && SHN_ABS for kernel, check shndxp for non-allocated section.
| * Uses <asm/syscall.h> when available.David Smith2009-04-095-152/+214
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2009-04-09 David Smith <dsmith@redhat.com> * buildrun.cxx (compile_pass): Compile autoconf test for <asm/syscall.h>. * runtime/autoconf-asm-syscall.c: New "autoconf" test the presence of <asm/syscall.h>. * runtime/syscall.h: If <asm/syscall.h> exists, use it. Otherwise, use our private copy of the functions for each architecture. (syscall_get_nr): Renamed from __stp_user_syscall_nr(). (syscall_get_return_value): Renamed from __stp_user_syscall_return_value(). (syscall_get_arguments): Renamed from __stp_user_syscall_arg(). * runtime/task_finder.c (__stp_utrace_task_finder_target_syscall_exit): Uses new syscall.h functions. * tapset/utrace.stp: Ditto.
| * Make simple probes work even without KPROBES in the kernel.Mark Wielaard2009-04-091-0/+8
| | | | | | | | | | | | | | | | | | Without KPROBES very little works atm. But stack.c file is unconditionally imported, while these two functions are only used through context-unwind.stp. This at least lets us do simple sanity checks on "plain" kernels. * runtime/stack.c (_stp_stack_print, _stp_stack_snprint): Wrap in #if defined (CONFIG_KPROBES).
| * Add tests for probefunc(), usymname(), uaddr() versus shared libraries.Mark Wielaard2009-04-092-0/+53
| | | | | | | | | | * testsuite/systemtap.base/uprobes_uname.exp: New file. * testsuite/systemtap.base/uprobes_uname.stp: Likewise.
| * Make new stap_task_finder_targets chain on correct list.Mark Wielaard2009-04-091-1/+1
| | | | | | | | | | * runtime/task_finder.c (stap_register_task_finder_target): Also check both pathlen are zero.
| * Make sure code using the vma tracker compiles again.Mark Wielaard2009-04-084-26/+6
| | | | | | | | | | | | | | | | * runtime/runtime.h: Include task_finder.c. * runtime/sym.c: Always define task_finder callbacks for usage in tapsets. * runtime/task_finder.c: Define dummy stap_task_finder_target when ! defined(CONFIG_UTRACE). * tapsets.cxx: Never include task_finder.c directly.
| * Fix DEBUG_TASK_FINDER_VMA compilation.Mark Wielaard2009-04-081-1/+1
| | | | | | | | * runtime/sym.c (_stp_tf_mmap_cb): We get passed vm_flags, not flags.
| * Add main executable symbol uprobe to uprobes_lib.exp test.Mark Wielaard2009-04-084-11/+23
| | | | | | | | | | | | | | | | | | | | | | There was nothing wrong with the probe itself, but because the body was empty the compiler optimised away the actual call... * testsuite/systemtap.base/uprobes_lib.exp: Activate main exe probe, expect more output. * testsuite/systemtap.base/uprobes_lib.stp: Also probe main and main_lib. * testsuite/systemtap.base/uprobes_exe.c: Put some code in main_func. * testsuite/systemtap.base/uprobes_lib.c: Likewise for lib_func.
| * Consider function when handling .labelStan Cox2009-04-082-16/+34
| | | | | | | | | | | | * tapsets.cxx(dwflpp::iterate_over_cu_labels): New parameter function. Do wildcard match for function. * testsuite/systemtap.base/labels.exp: Test .label function handling.
| * Better error handling in 'setup_server'.David Smith2009-04-081-2/+2
| | | | | | | | | | | | 2009-04-08 David Smith <dsmith@redhat.com> * lib/systemtap.exp (setup_server): Better error handling.
| * Added '#ifdef STP_NEED_VMA_TRACKER' around code that needs it.David Smith2009-04-081-1/+2
| | | | | | | | | | | | | | 2009-04-08 David Smith <dsmith@redhat.com> * runtime/sym.c: Added '#ifdef STP_NEED_VMA_TRACKER' around code that needs it.
| * Merge branch 'master' of ssh://sources.redhat.com/git/systemtapDavid Smith2009-04-088-43/+135
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| | * Merge branch 'master' of ssh://sourceware.org/git/systemtapStan Cox2009-04-081-4/+4
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| | | * tweak nettop.stp demo to sort by accumulated counts despite mergingFrank Ch. Eigler2009-04-081-4/+4
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| | * | Do not do a partial name comparison for .label.Stan Cox2009-04-082-8/+9
| | |/ | | | | | | | | | * tapsets.cxx (dwflpp::iterate_over_cu_labels): Compare with strcmp not strncmp.
| | * Fix stats for processes that only transmitted data without receivingEugeniy Meshcheryakov2009-04-081-0/+8
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| | * Omit symbols that have suspicious addresses (before base) from symbol table.Mark Wielaard2009-04-081-2/+5
| | | | | | | | | | | | * translate.cxx (dump_unwindsyms): Filter out sym.st_value < base values.
| | * Use _stp_snprintf in _stp_symbol_snprint.Mark Wielaard2009-04-081-2/+2
| | | | | | | | | | | | * runtime/sym.c (_stp_symbol_snprint): Use _stp_snprintf, no _stp_printf.
| | * Add uaddr() context tapset function.Mark Wielaard2009-04-082-0/+33
| | | | | | | | | | | | | | | * tapset/context.stp (uaddr): New sfunction. * testsuite/buildok/uaddr.stp: New test.
| | * Fix so publicanized Tapset Reference manual can be generated again.William Cohen2009-04-071-30/+77
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| * | Only includes task_finder.c when needed.David Smith2009-04-082-2/+22
| |/ | | | | | | | | | | | | | | | | | | | | | | | | 2009-04-08 David Smith <dsmith@redhat.com> * tapsets.cxx (itrace_derived_probe_group::emit_module_decls): Added inclusion of task_finder.c back. Unconditionally including it when not needed causes all systemtap scripts to fail on kernels with no utrace support. (utrace_derived_probe_group::emit_module_decls): Ditto. (uprobe_derived_probe_group::emit_module_decls): Ditto. * runtime/runtime.h: Removed unconditional inclusion of task_finder.c.
| * Add valid interval in error message when timer probe out of range.Mark Wielaard2009-04-071-10/+18
| | | | | | | | | | | | * tapsets.cxx (hrtimer_derived_probe): Take scale argument, add interval/scale to semantic_error message. (timer_builder): Set and pass scale.
| * Track VMA per pid (group_leader/tgid).Mark Wielaard2009-04-071-5/+6
| | | | | | | | | | * runtime/sym.c (_stp_tf_vm_cb): Add and remove tsk->group_leader. (_stp_mod_sec_lookup): find vma for task->group_leader.
| * Create usymname and usymdata variant that trigger STP_NEED_VMA_TRACKER.Mark Wielaard2009-04-075-5/+72
| | | | | | | | | | | | | | | | | | * tapset/context-symbols.stp (syname, symdata): Pass NULL for kernel address. * tapset/ucontext-symbols.stp: New file defining usymname and usymdata. * testsuite/systemtap.context/usymbols.exp: Use usymname, remove STP_NEED_VMA_TRACKER hack. * testsuite/buildok/usymdata.stp: New test. * testsuite/buildok/usymname.stp: Likewise.
| * PR 9940. Rearchitected task_finder.c a bit.David Smith2009-04-073-309/+281
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2009-04-07 David Smith <dsmith@redhat.com> PR 9940. * tapsets.cxx (emit_vma_callback_probe_decl): Initialized new callbacks. (utrace_derived_probe_group::emit_probe_decl): Ditto. (uprobe_derived_probe_group::emit_module_decls): Uses new callback. Makes sure mapping is executable before trying to set a probe in it. (itrace_derived_probe_group::emit_module_init): Calls _stp_sym_init(). (utrace_derived_probe_group::emit_module_init): Ditto. (uprobe_derived_probe_group::emit_module_init): Ditto. * runtime/sym.c: Moved task_finder_vma.c inclusion here from task_finder.c. (_stp_sym_init): New function. (_stp_tf_mmap_cb): New function that replaces _stp_tf_vm_cb. (_stp_tf_munmap_cb): Ditto. * runtime/task_finder.c: Removed task_finder_vma.c inclusion. Split vm_callback into 3 callbacks: mmap_callback, munmap_callback, and mprotect_callback. (stap_register_task_finder_target): Initializes new events variables for the new callbacks. (__STP_TASK_VM_BASE_EVENTS): No longer specifies syscall entry events. (__stp_call_mmap_callbacks): New function. (__stp_call_mmap_callbacks_with_vma): Ditto. (__stp_call_munmap_callbacks): Ditto. (__stp_call_mprotect_callbacks): Ditto. (__stp_call_vm_callbacks): Removed. (__stp_utrace_task_finder_target_quiesce): Calls __stp_call_mmap_callbacks() instead of __stp_call_vm_callbacks(). (__stp_utrace_task_finder_target_syscall_entry): Removed function. (__stp_utrace_task_finder_target_syscall_exit): Reports raw mmap()/mprotect()/munmap() events.
| * PR10026: Read marker/tracepoint args directlyJosh Stone2009-04-065-59/+43
| | | | | | | | | | | | | | | | | | | | We already stash the context variables for markers and tracepoints into the locals for the probe body, but then we were using separate functions to read those locals for each particular probe body. This patch instead teaches the unparser how to emit the local name directly for those context variables. The resulting code from the translator is much simpler now.
| * PR10037: add target_symbol token to $context error messagesFrank Ch. Eigler2009-04-061-64/+81
| | | | | | | | | | * tapsets.cxx (many foo-translate-bar): Add const target_symbol* parameter, for ->tok use when constructing semantic_errors.
| * Run autoreconfEugeniy Meshcheryakov2009-04-061-3/+6
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| * Make install-scripts depend on install-binSCRIPTSEugeniy Meshcheryakov2009-04-061-1/+2
| | | | | | | | This is needed for running make with -j. Fixes Debian bug #522800.
| * Amend process/errsnoop.stp shebangEugene Teo2009-04-051-1/+2
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| * Remove extra commas in SEE ALSO sectionsEugeniy Meshcheryakov2009-04-0411-11/+11
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| * Make examples executableEugeniy Meshcheryakov2009-04-042-0/+0
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| * PR5163: Assign need_uprobes during pass-2Josh Stone2009-04-031-2/+4
| | | | | | | | | | | | We were doing this in pass-3, which means it was never set for cached runs, and so staprun didn't get the -u flag. Now need_probes is set as soon as a uprobe_derived_probe is saved into the session in pass-2.
| * PR10032: Trigger cleanup after relay thread errorsJosh Stone2009-04-032-10/+25
| | | | | | | | | | | | When the relay threads encounter an error, they now send SIGTERM to the rest of the process before the thread exit, so we get a clean shutdown. For EPIPE in particular, error messages are also suppressed.
| * Correct column heading from uid to pid.William Cohen2009-04-031-1/+1
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| * Describe the ansi_colors.stp and ansi_colors2.stp. Label tables appropriately.William Cohen2009-04-038-7/+82
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| * new process/errsnoop.stp sample scriptEugene Teo2009-04-036-11/+105
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| * Make ansi_colors2.stp script executableEugene Teo2009-04-031-0/+0
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| * Update scripts to use the new ANSI tapsetEugene Teo2009-04-033-19/+28
| | | | | | | | | | | | This updates the example scripts to use the new ANSI escape sequences tapset. It also adds the copyright header that was missing in ansi_colors.stp for a long time.
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