| Commit message (Collapse) | Author | Age | Files | Lines |
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Patch from Prerna Saxena.
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+ and * are metacharacters, but should always be used
as metacharacters in the expressions, don't escape them.
* testsuite/systemtap.syscall/test.tcl (run_one_test): Remove escaping
of + and *.
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* testsuite/systemtap.base/alternatives.exp (local1_script): Fix typo.
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The syscall testsuite uses embedded "// TEXT" markers in the .c files
to designate expected output, kind of like the "dg-" bunch in the gcc
test suite. Unfortunately, "//" is not a unique prefix to systemtap
tests, and in particular it can occur in the system headers that will
be picked up with the "gcc -E -C ..." invocation in test.tcl.
So let's switch to "//staptest//". test.tcl is also modified to
escape a few more mischevious regexp metacharacters that might sneak
past.
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While there, fix minor issues with the s390x syscall tapset.
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Using timeval had problems on big-endian multi-arch platforms (ppc64),
because the user tv_sec used in the @cast didn't match the kernel tv_sec
used to provide a pointer. Hopefully reading from a sockaddr should be
more robust, as that type doesn't appear to need any compat wrappers for
multi-archs.
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* testsuite/systemtap.base/flightrec2.exp: Use stat instead of ls for checking
file size.
* testsuite/systemtap.base/flightrec2.stp: Increase timer interval for some
architecture on which the minimum interval is more than 1 ms (e.g. xen)
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* elaborate.cxx: Early return for mismatched optional probe.
* testsuite/systemtap.base/optionalprobe.exp: New test case.
* testsuite/systemtap.base/optionalprobe.stp: Ditto.
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... rather than exiting with MAXACTIONS exceeded
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This patch will make %M directive dump the variable width
buffer in hex format instead of returning uint64_t number
as before.
* runtime/vsprintf.c: Modify %M directive.
* stap.1.in: Update description.
* testsuite/systemtap.printf/memory1.stp: Add test case.
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* tapset/string.stp: New function stringat.
* testsuite/systemtap.printf/char1.exp: Update test case.
* testsuite/systemtap.printf/char1.stp: Ditto.
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* tapsets.cxx (kprobe_derived_probe): Use enter_k[ret]probe>>2<<_probe.
* testsuite/buildok/thirtyone.stp: Test this.
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All of our other kprobe types will let the script continue after a
registration failure, as per PR6749. The dwarfless kprobes should be
no exception.
Also, the way they were exiting was causing an unclean shutdown, so I
added tests to badkprobe.exp to make sure that cleanup is always allowed
to run.
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* testsuite/systemtap.base/kprobes.exp: Add expected message.
* testsuite/systemtap.base/kprobes.stp: Ditto.
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* testsuite/systemtap.base/kprobes.stp: Update text.
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* testsuite/systemtap.base/strftime.exp: New test case for strftime.
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* testsuite/systemtap.base/flightrec1.exp: New test case for background mode.
* testsuite/systemtap.base/flightrec2.exp: New test case for file switching.
* testsuite/systemtap.base/flightrec2.stp: Test script for file switching.
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* testsuite/systemtap.examples/process/sigmon.meta: Correct title and name.
* testsuite/systemtap.examples/index.html: Regenerated.
* testsuite/systemtap.examples/index.txt: Likewise.
* testsuite/systemtap.examples/keyword-index.html: Likewise.
* testsuite/systemtap.examples/keyword-index.txt: Likewise.
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The special syntax to generate a module for type information is now:
- "kernel<path/to/header.h>" to use the kernel's build environment
- "<path/to/header.h>" to use no special build environment, and so use
gcc's default parameters only (for user mode).
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Needs extra space since on 64bit the last ubacktrace string is
7 entries * (16 hex + 2 for 0x + 1 space) = 133 chars.
Default MAXSTRINGLEN is 128 chars.
* testsuite/systemtap.base/uprobes_ustack.exp: Add -DMAXSTRINGLEN.
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* runtime/stack.c (_stp_stack_print): Use _stp_usymbol_print when tsk given.
* testsuite/systemtap.base/uprobes_ustack.exp: New test file.
* testsuite/systemtap.base/uprobes_ustack.stp: Likewise.
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* runtime/sym.c (_stp_usymbol_print): New function.
* tapset/ucontext-unwind.stp (print_ubacktrace): New tapset function.
(ubacktrace): Likewise.
* tapset/ucontext-symbols.stp (print_ustack): Likewise.
* testsuite/buildok/ustack.stp: New test for above three functions.
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2009-04-21 David Smith <dsmith@redhat.com>
* testsuite/semok/utrace01.stp: New test.
* testsuite/parseko/utrace01.stp: Updated test.
* testsuite/semko/utrace03.stp: Ditto.
* testsuite/semko/utrace04.stp: Ditto.
* testsuite/semko/utrace01.stp: Deleted unneeded test.
* testsuite/semko/utrace08.stp: Ditto.
* testsuite/semko/utrace09.stp: Ditto.
* testsuite/semko/utrace10.stp: Ditto.
* testsuite/semko/utrace11.stp: Ditto.
* testsuite/semko/utrace12.stp: Ditto.
* testsuite/semko/utrace13.stp: Ditto.
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2009-04-21 David Smith <dsmith@redhat.com>
* tapsets.cxx (utrace_derived_probe::utrace_derived_probe): If
during target-variable-expanding the probe, we added a new block
or probe, add them.
(utrace_var_expanding_visitor::visit_target_symbol_cached): New
function to cache target variables in a generated syscall probe to
use in syscall.return probes.
(utrace_var_expanding_visitor::visit_target_symbol_context): In a
syscall.return probe, you can't access $syscall. So use
visit_target_symbol_cached() to cache the value for use here.
* testsuite/systemtap.base/utrace_syscall_args.stp: Test use of
$syscall in syscall.return probes.
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Still needs a .meta file to catch any breakage in the future.
* testsuite/systemtap.examples/profiling/latencytap.stp
(task_backtrace): Cast task to unsigned long first.
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arch_predict_sp_at_ret() for x86_32 now accommodates ret $4.
Added bz10078 regression test.
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* translate.cxx (c_unparser::visit_print_format): Always use
_stp_printf if a format string contains "%%". Previously a format
string with no arguments would always be printed with _stp_print.
* testsuite/systemtap.printf/basic6.stp: New test for %% in format
strings.
* testsuite/systemtap.printf/basic6.exp: test driver
* testsuite/systemtap.examples/grapher.stp: Remove workaround for
"%%" literal problem.
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2009-04-17 David Smith <dsmith@redhat.com>
* systemtap.base/utrace_syscall_args.c: New test file.
* systemtap.base/utrace_syscall_args.exp: New test file.
* systemtap.base/utrace_syscall_args.stp: New test file.
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* dtrace: Output probe calling sequence comment
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* tapsets.cxx (dwflpp::iterate_over_labels): Renamed from
iterate_over_cu_labels, method signature simplified.
(query_srcfile_label): New.
(query_cu): Use above.
* labels.exp: New tests for above.
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and regenerated index files.
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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.
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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>
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* 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.
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* tapsets.cxx (iterate_over_cu_labels): Treat -l specially so the
output of a .label can be improved.
* labels.stp: Test -l
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