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tagged by /* unprivileged */.
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This patch adds the test case needed for this function. I have added
few tests. If required more can be added in future.
As discussed in previous version, the testcase patch has been reverted
to the original as the str_replace() functionality has changed wrt to
error handle.
Signed-off-by: Varun Chandramohan <varunc@linux.vnet.ibm.com>
Signed-off-by: Josh Stone <jistone@redhat.com>
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Starting the test with a cold cache can take easily longer than
dejagnu's default 10 second timeout. I'm bumping it to 180 seconds,
the same as in the stap_run library functions.
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Signed-off-by: Josh Stone <jistone@redhat.com>
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* sdt.h (STAP_PROBE_DATA_): Pad with 0 so final probe entry doesn't
pickup a stray word.
* sdt_misc.exp (static_user_markers.{c,d}): Add bstruct to test struct
type handling
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This reverts commit 0c98234c86877cfea3df762dc8627b3f05c38e75.
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Conflicts:
runtime/transport/transport.c
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Conflicts:
runtime/print.c
runtime/transport/transport.c
runtime/transport/transport_msgs.h
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2009-03-11 David Smith <dsmith@redhat.com>
* systemtap.printf/end1.exp: The test fails when stap fails.
* systemtap.printf/end1b.exp: Ditto.
* systemtap.printf/mixed_out.exp: Ditto.
* systemtap.printf/mixed_outb.exp: Ditto.
* systemtap.printf/out1.exp: Ditto.
* systemtap.printf/out1b.exp: Ditto.
* systemtap.printf/out2.exp: Ditto.
* systemtap.printf/out2b.exp: Ditto.
* systemtap.printf/out3.exp: Ditto.
* systemtap.printf/out3b.exp: Ditto.
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* translate.cxx (translate_pass): Emit module_parm stuff at the very end.
* testsuite/buildok/null.stp: New test.
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* testsuite/systemtap.base/flightrec3.exp: Fixed for slower systems.
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Previous implementation was error-prone, because allowed returning empty
tokens (mimiced strsep()), which is fine if there is a NULL semantic.
Unfortunately SystemTap doesn't provide it in scripts and has only blank
string (""), therefore testing against it was misleading.
The solution is to return only non-empty tokens (mimic strtok()).
* tapset/string.stp: Fix tokenize.
* testsuite/systemtap.string/tokenize.stp: Improve and add case with
more than one delimiter in the delim string.
* testsuite/systemtap.string/tokenize.exp: Ditto.
* stapfuncs.3stap.in: Update tokenize description.
* doc/langref.tex: Ditto.
Signed-off-by: Josh Stone <jistone@redhat.com>
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* testsuite/systemtap.base/flightrec3.exp: Improved error handling.
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tapsets.cxx (dwarf_builder::build): Special case listing mode for kprobe and utrace.
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* testsuite/lib/systemtap.exp (get_system_info): Remove possible newlines
from GCC_Version string.
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Prints the gcc being used and full version. Also adds short version
number to systemtap.sum file (plus full version string). Will make
comparing failures based on compiler version being used easier.
* testsuite/lib/systemtap.exp (print_systemtap_version): Also print
location and full version of gcc being used.
(get_system_info): Get gcc version number and long version string.
* testsuite/lib/stap_run.exp (print_system_info): Output GCC version.
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* tapset/context.stp: Add pgrp() function.
* testsuite/buildok/context_test.stp: Add pgrp() call.
* stapfuncs.3stap.in: Describe pgrp() and sid().
Signed-off-by: Josh Stone <jistone@redhat.com>
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* sdt.h (EXPERIMENTAL_UTRACE_SDT, EXPERIMENTAL_KPROBE_SDT): New probe
point macros.
* dtrace: Add support for creating type debug info, currently invoked
with --types.
* tapsets.cxx (probe_table::convert_probe): New.
(probe_table::convert_location): New.
(dwarf_builder::build): Use it to simplify probe point handling.
* sdt.exp (pbtype_flags, pbtype_mssgs): New to also test kprobe and utrace.
* static_uprobes.exp (pbtype_flags, pbtype_mssgs): New to also test kprobe and utrace.
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The original logic was a little confused. It could end up searching the
separate debuginfo twice instead of falling back to the main elf file.
Now we explicitly search the main elf file first (where the .probes
section really should be) and only then fall back to the separate
debuginfo file.
* tapsets.cxx (dwarf_builder::probe_table::probe_table): Search main
elf file first, then fall back on separate debuginfo file if necessary.
* testsuite/systemtap.exelib/exelib.exp: Enable mark.tcl testcase.
main elf file or the debuginfo file, but would interpret
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* testsuite/systemtap.exelib/exelib.exp: Compile against sdt.h.
* testsuite/systemtap.exelib/uprobes_exe.c: Add main_count probe mark.
* testsuite/systemtap.exelib/uprobes_lib.c: Add func_count probe mark.
* testsuite/systemtap.exelib/mark.tcl: New test.
* testsuite/systemtap.exelib/mark.stp: New test tapset.
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The testcase now uses noinline, an empty asm statement and a volatile
variable to prevent the function getting inlined, being totally unrolled
or the recursive call being replaced with an inner-iteration.
This does defeat part of the testcase though, which was testing unwinding
through an optimized recursive function. But it seems the best we can do.
* testsuite/systemtap.exelib/exelib.exp: Add -O3 to the mix.
* testsuite/systemtap.exelib/uprobes_exe.c: Use volatile bar and mark
main_func noinline.
* testsuite/systemtap.exelib/uprobes_lib.c: Use volatile foo and mark
lib_func noinline.
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* tapsets.cxx (dwarf/kprobe_derived_...::emit_decl/init): Define
and use KRETPROBE instead of hard-coded max(...) values. Raise
the default 50%.
* testsuite/buildok/thirtytwo.stp: New test.
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Tests uprobes placed in executables and shared libraries on different
arches (32-on-64 currently disabled), gcc/g++, optimizations (currently
disabled), prelinked libs (currently disabled), seperate libs/exe debuginfo
and pie executables.
* testsuite/systemtap.base/uprobes_exe.c: Moved to...
* testsuite/systemtap.exelib/uprobes_exe.c: From systemtap.base.
* testsuite/systemtap.base/uprobes_lib.c: Moved to...
* testsuite/systemtap.exelib/uprobes_lib.c: From systemtap.base.
* testsuite/systemtap.base/uprobes_lib.exp: Rewritten as...
* testsuite/systemtap.exelib/lib.tcl: From uprobes_lib.exp.
* testsuite/systemtap.base/uprobes_lib.stp: Rewritten as...
* testsuite/systemtap.exelib/lib.stp: From uprobes_lib.stp.
* testsuite/systemtap.base/uprobes_uname.exp: Rewritten as...
* testsuite/systemtap.exelib/uname.tcl: From uprobes_uname.exp.
* testsuite/systemtap.base/uprobes_uname.stp: Rewritten as...
* testsuite/systemtap.exelib/uname.stp: From uprobes_uname.stp.
* testsuite/systemtap.base/uprobes_ustack.exp: Rewritten as...
* testsuite/systemtap.exelib/ustack.tcl: From uprobes_ustack.exp.
* testsuite/systemtap.base/uprobes_ustack.stp: Rewritten as...
* testsuite/systemtap.exelib/ustack.stp: From uprobes_ustack.stp.
* testsuite/systemtap.exelib/exelib.exp: New exelib uprobes framework.
* testsuite/systemtap.exelib/cleanup.tcl: New file.
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When an instance of an alias has a condition, that condition gets
propagated to each of the locations that the alias defines. However,
the copy of the location list was not a deep copy, and so all other
instances of the alias would also incorrectly receive the condition.
This patch makes the location list copy a little deeper, and adds a
test case which demonstrates the issue.
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* testsuite/systemtap.base/sdt.exp: Better cleanup.
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Both kernel.function and kprobe.function were defining a global array
stap_unreg_kprobes to use in bulk kprobes unregistration. The compiler
allowed the duplicate definition as long as they were the same size, as
it was when exercised in buildok/thirtyone.
kprobe.function now uses a separate stap_unreg_kprobes2, and the
testcase is modified to produce an imbalanced number of probes.
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When a kernel.function or kprobe.function fails in registration, we
usually print a WARNING and move on. With this patch, kprobes that have
the optional '?' flag will not print any WARNING.
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Previously, _stp_init_time and _stp_kill_time were being called from
begin/end/error probes, which will run with preemption disabled. The
BUG reported on RT kernels showed that cpufreq_unregister_notifier can
end up sleeping, which violates our preemption block.
This patch moves the init/kill into systemtap_module_init/exit, where it
is safe to sleep. The code maintains a new predicate with the define
STAP_NEED_GETTIMEOFDAY, so we don't still incur any timer overhead if
it's not used.
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