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* Added comments.David Smith2009-05-061-0/+37
| | | | * runtime/transport/transport.h: Added comments.
* Start of support for older transport and cleanup.David Smith2009-05-064-51/+573
| | | | | | | | * runtime/transport/control.c: Added inclusion of linux/delay.h to get declaration of msleep(). * runtime/transport/relay_v2.c: New skeleton file for transport version 2. * runtime/transport/ring_buffer.c: Cleanup. * runtime/transport/transport.c: Ditto.
* Renamed STP_OLD_TRANSPORT to STP_TRANSPORT_VERSION.David Smith2009-04-028-15/+26
| | | | | | | | | | | | | 2009-04-02 David Smith <dsmith@redhat.com> * runtime.h: Defines STP_TRANSPORT_VERSION instead of STP_OLD_TRANSPORT. * staprun/staprun.h (STP_OLD_TRANSPORT): Ditto. * print.c: Changed STP_OLD_TRANSPORT to STP_TRANSPORT_VERSION. * staprun/mainloop.c (stp_main_loop): Ditto. * transport/transport.c: Ditto. * transport/transport.h: Ditto. * transport/transport_msgs.h: Ditto. * transport/utt.h: Ditto.
* 2009-03-31 David Smith <dsmith@redhat.com>David Smith2009-03-313-105/+64
| | | | | | | | | | | | * print_new.c (stp_print_flush): Pushed MAX_RESERVE logic down to _stp_data_write_reserve(). Now just keeps calling _stp_data_write_reserve() until it has written the entire print buffer. * transport/ring_buffer.c (_stp_data_write_reserve): Breaks large reserve requests down into smaller ones for better buffer use. Returns the number of bytes reserved. * transport/transport.h: Updated _stp_data_write_reserve() prototype.
* 2009-03-30 David Smith <dsmith@redhat.com>David Smith2009-03-301-89/+79
| | | | * print_new.c: Whitespace/indent changes only.
* Working bulkmode support.David Smith2009-03-132-12/+93
| | | | | | | | | | | | 2009-03-13 David Smith <dsmith@redhat.com> * print_new.c (stp_print_flush): Added bulkmode support for new transport. * transport/ring_buffer.c (__stp_find_next_entry): Fixed syntax error in bulkmode code. (_stp_transport_data_fs_init): Changed 'for_each_possible_cpu()' to 'for_each_online_cpu()' so that non-online cpu's won't have a trace file created.
* More bulkmode support.David Smith2009-03-131-44/+23
| | | | | | | | | | | | 2009-03-13 David Smith <dsmith@redhat.com> * transport/ring_buffer.c (_stp_data_open_trace): Passes the inode's private data into the file's private data. (_stp_trace_seq_to_user): Deleted unused function. (trace_seq_reset): Ditto. (__stp_find_next_entry): Renamed and added bulkmode support. (_stp_find_next_entry): Updated call. (_stp_data_read_trace): Updated call.
* More bulkmode support. Only allows for one reader of all trace files.David Smith2009-03-131-7/+29
| | | | | | | | | | | | | 2009-03-13 David Smith <dsmith@redhat.com> * transport/ring_buffer.c (__stp_free_ring_buffer): Frees _stp_trace_reader_cpumask. (__stp_alloc_ring_buffer): Allocates and clears _stp_trace_reader_cpumask. (_stp_data_open_trace): Instead of using an atomic variable, uses a cpumask variable to allow for only one reader of trace files. (_stp_data_release_trace): Clears cpumask when trace files are closed.
* Start of STP_BULKMODE support.David Smith2009-03-121-12/+38
| | | | | | | | 2009-03-12 David Smith <dsmith@redhat.com> * transport/ring_buffer.c (_stp_transport_data_fs_init): Start of STP_BULKMODE support - creates one trace file per cpu. (_stp_transport_data_fs_close): Cleans up one trace file per cpu.
* Merge branch 'master' of ssh://sources.redhat.com/git/systemtap into pr7043David Smith2009-03-12114-1040/+11022
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| * Simplify tracepoint registrationsJosh Stone2009-03-121-28/+43
| | | | | | | | | | | | | | Instead of registering tracepoints with the deeply-nested if-tree, which was cluttering the module_init/exit, this now emits normalized reg/unreg functions for each tracepoint probes. Now the module_init/exit can be a simple loop like all of the other probe types.
| * Add test to compile and run all tracepointsJosh Stone2009-03-112-0/+26
| | | | | | | | | | | | | | | | | | This checks that kernel.trace("*") will compile, with all context variables accessed as well. For kernels without tracepoints, it will just hit a "begin" and quit. This doesn't ensure that kernel.trace("*") will always find something when it should, though...
| * Fix @cast module splittingJosh Stone2009-03-111-1/+1
| | | | | | | | | | | | The new semok testcase exposed that the module splitting wasn't properly setting substr boundaries. Instead of passing the end position, it's supposed to pass the number of characters (end - begin). Oops.
| * Add simple testcases for @castJosh Stone2009-03-113-0/+39
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| * improve sdt.h compatibility and test suiteFrank Ch. Eigler2009-03-113-31/+36
| | | | | | | | | | | | Replaced cpp VA_ARGS in sdt.h with explicit enumeration of arguments (since with -pedantic, cpp has no varargs), and added a few more cflags variants to the sdt.exp test case.
| * PR 7071: Optional $context variables fixRajan Arora2009-03-116-12/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * tapsets.cxx (dwarf_var_expanding_visitor::visit_target_symbol): Substitute erroneous target symbol with literal 0 if session level flag, skip_badvars is set. * session.h (struct systemtap_session): New flag: skip_badvars. * main.cxx: Command line argument --skip-badvars added. * stap.1.in: Entry for new option --skip-badvars. * NEWS: Added blurb for new option now available. * testsuite/semok/badvar.stp: Test case to check added functionality.
| * Run the tests for each member of a list of extra options.Stan Cox2009-03-111-1/+30
| | | | | | | | * testsuite/systemtap.base/sdt.h: Add extra_flags and g++ as a test language.
| * 2009-03-11 Dave Brolley <brolley@redhat.com>Dave Brolley2009-03-112-20/+51
| | | | | | | | | | | | | | | | | | | | | | | | PR 9936 * stap-find-servers (configuration): Set timeout to 10 seconds. (find_servers): Run avahi-browse in the background and wait for $timeout seconds for it to finish. Kill it if it does not finish. Use a temp file for avahi-browse output. (match_server): Use -t $timeout on read commands. * stap-start-server: Check for $server_pid as a running process and for avahi-publish-service running as a child of $server_pid in order to confirm that the server is running.
| * Make marker probe support listing mode -LWenji Huang2009-03-101-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is to enable displaying the arguments of marker probe for listing mode -L. The output is like, $stap -L 'kernel.mark("*")' kernel.mark("core_marker_format").format("name %s format %s") $arg1:string $arg2:string kernel.mark("jbd2_checkpoint").format("dev %s need_checkpoint %d") $arg1:string $arg2:long kernel.mark("jbd2_end_commit").format("dev %s transaction %d head %d") $arg1:string $arg2:long $arg3:long kernel.mark("jbd2_start_commit").format("dev %s transaction %d") $arg1:string $arg2:long Note: It's also possible to figure out the arguments according to the format. Signed-off-by: Wenji Huang <wenji.huang@oracle.com>
| * Make tracepoint probe support listing mode -LWenji Huang2009-03-103-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is to enable displaying arguments of tracepoint probe in listing mode -L. The example output is like $stap -L 'kernel.trace("block_bio*")' kernel.trace("block_bio_bounce") $q:struct request_queue* $bio:struct bio* kernel.trace("block_bio_backmerge") $q:struct request_queue* $bio:struct bio* kernel.trace("block_bio_complete") $q:struct request_queue* $bio:struct bio* kernel.trace("block_bio_queue") $q:struct request_queue* $bio:struct bio* kernel.trace("block_bio_frontmerge") $q:struct request_queue* $bio:struct bio* Signed-off-by: Wenji Huang <wenji.huang@oracle.com>
| * Merge branch 'typecast'Josh Stone2009-03-105-134/+84
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| | * Merge sequential casts in the vfs tapsetJosh Stone2009-03-101-35/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | A few places in this tapset were using a pattern like this: i_sb = @cast(foo, "inode")->i_sb return @cast(foo, "super_block")->bar The type of i_sb is already known, so I just merged this to: return @cast(foo, "inode")->i_sb->bar
| | * PR9932: use @cast module search pathJosh Stone2009-03-103-60/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | The nfs, rpc, and scsi tapsets use @cast on types that may be compiled into a kernel module or into the main kernel binary. The @cast search path separated with colons lets us search both the kernel and the module. For a couple of cases, I also merged sequential @casts that work just fine as a single cast with a multiple-level dereference.
| | * PR9932: add @cast module search pathJosh Stone2009-03-101-39/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes @cast()ing can fail if the type needed may or may not be defined in a kernel module. This patch lets @cast take a colon- separated list of modules to search for the type definition. * tapsets.cxx (dwarf_cast_query): Simplify. Take the module and the code result as reference parameters, and use code.empty() as the sign that the type isn't resolved yet. (dwarf_cast_expanding_visitor::visit_cast_op): Split e->module by colon into substrings, and loop until the type is resolved.
| * | Ensure args are available for postgres static probes.Stan Cox2009-03-101-25/+25
| |/ | | | | | | * includes/sys/sdt.h: Couple asm with its arg declaration.
| * Let -DINTERRUPTIBLE=0 mask interrupts in probesJosh Stone2009-03-093-24/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some time ago we loosened up the code for all probe types to allow interrupts during the handler. However, when probing something like kernel.trace("*"), you get a mix of probes in and out of the interrupt path, and it becomes much more common to have probes skipped due to interrupt reentrancy. The common_probe_entryfn_prologue and common_probe_entryfn_epilogue functions had an interruptible flag, but this was no longer used anywhere. I removed this flag, but then reused the logic to check an INTERRUPTIBLE macro instead. Now users can use -DINTERRUPTIBLE=0 to prevent interrupt reentrancy in their script, at the cost of a bit more overhead to toggle the interrupt mask.
| * Fix a few typos in stap(1)Josh Stone2009-03-091-6/+7
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| * Use alternate keywords for sdt.hStan Cox2009-03-092-137/+93
| | | | | | | | * include/sys/sdt.h: Initialize args when declaring. Use alternate keywords.
| * Add tracepoint $$parms alias for $$varsJosh Stone2009-03-092-4/+6
| | | | | | | | | | | | For parity with the DWARF probes, this makes tracepoints also define $$parms, which has the same value as $$vars (since tracepoints are missing the concept of $$locals).
| * Update location of c->probe_point resetJosh Stone2009-03-091-1/+1
| | | | | | | | | | The probe_point clear was nested in the overload processing code, I believe accidentally. This just makes it always cleared on probe exit.
| * Add safety checks to _stp_get_register_by_offset()Josh Stone2009-03-094-1/+41
| | | | | | | | | | This now checks that CONTEXT->regs actually exists, and that the requested offset is in the correct range.
| * PR9935. Fixed stap script typos. arg[5-10] -> $arg[5-10].Mark Wielaard2009-03-092-9/+7
| | | | | | | | | | * testsuite/systemtap.base/sdt.exp: Enable stap_run2 when installtest_p. * testsuite/systemtap.base/sdt.stp: Fixed all arg to $arg typos.
| * Add PR9935 number to sdt.exp disabled test.Mark Wielaard2009-03-091-1/+1
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| * Add new sdt.exp testcase.Mark Wielaard2009-03-093-0/+154
| | | | | | | | | | | | * testsuite/systemtap.base/sdt.exp: New test file. * testsuite/systemtap.base/sdt.stp: Likewise. * testsuite/systemtap.base/sdt.c: Likewise.
| * Include sys/types.h in sdt.h for __uint64_t.Mark Wielaard2009-03-091-0/+1
| | | | | | | | * includes/sys/sdt.h: Add #include <sys/types.h>.
| * Put statements after declaration in sdt macros. Fix arg10 assignment.Mark Wielaard2009-03-091-85/+140
| | | | | | | | * includes/sys/sdt.h: Assign args, after declaration.
| * Only use plain C comments in sdt.h.Mark Wielaard2009-03-091-10/+11
| | | | | | | | includes/sys/sdt.h: Replace c++ comments with plain C comments.
| * Make stap_run2 count exact number of lines.Mark Wielaard2009-03-0939-71/+38
| | | | | | | | | | * testsuite/lib/stap_run2.exp: Compare found and expected number of lines. * testsuite/systemtap.*/*.exp (result_string): Make number of lines exact.
| * Remove extra semi-colons from defines in sdt.h.Mark Wielaard2009-03-091-3/+3
| | | | | | | | | | * includes/sys/sdt.h (STAP_PROBE_STRUCT_ARG): Remove ending semi-colon. (STAP_LABEL_REF): Likewise.
| * Merge branch 'master' of ssh://sources.redhat.com/git/systemtapddomingo2009-03-098-28/+102
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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).
| * | added commenting/documentation guidelinesddomingo2009-03-091-7/+174
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| * 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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