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* util.h (lex_cast_qstring): Use unsigned rather than signed chars.
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We hereby no longer try to manipulate process groups in any way. We
don't set a private process group, and we never kill() our entire group
either. Instead of using system(), we now have a stap_system() which
saves the child PID, so when we get a terminating signal we can pass it
along to the child.
Signals sent through the TTY have always worked, since the TTY sends it
to the entire pgrp. However, if we're running as part of a wrapper
script or GUI, which may not have a separate process group for stap, we
still would like to allow "kill -TERM $STAPPID" to terminate stap
nicely.
There's still a short window of failure in the time that staprun is
active, because we can't kill a setuid process from a user process.
Once staprun drops privileges and execs to stapio though, everything
should work fine.
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To better support kernel developers who work out of a single source
tree, this adds the git HEAD revision to our caching hash.
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* commit 'origin/master':
PR5686: correct regression in semok/optimize.stp
trailing whitespace removal, as approved by emacs
fix global-var array index rendering
fix NEWS to refer to simpler context.stp tapset functions in auto-printing blurb
Document written but unread global variable automatic display.
2nd try
initial
Make _get_sock_addr return correct address in kernel before 2.6.16.
Automatically print written but unread globals
Make nodwf test passed when CONFIG_QUOTACTL unset
Uses STAPCONF_DPATH_PATH instead of a kernel version check.
Simplified "rpm" target a bit.
Moved tar archive creation step from "rpm" target to "dist-gzip" target.
remove support for "make dist" since git-archive does as well;
Examples html files moved into subdir.
2008-08-25 David Smith <dsmith@redhat.com>
ChangeLog Entries
Robustness improvements for the stap client/server
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(add-hook 'before-save-hook 'delete-trailing-whitespace)
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PR2424
From Lai Jiangshan <laijs@cn.fujitsu.com>
* util.cxx (cmdstr_quoted): New. Properly quote
command string.
* buildrun.cxx (run_pass): Call cmdstr_quoted().
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PR 4846
* parse.cxx (input_put): New function, sort of like stdio ungetc.
(input_get): Skip cursor position changing for input_put strings.
(scan): Rework $.../@... substitution into character pasting.
* parse.h: Corresponding changes.
* util.h (lex_cast_qstring): Octal-quote unprintable characters.
* stap.1.in, NEWS: Document new behaviour.
2007-08-07 Frank Ch. Eigler <fche@redhat.com>
PR 4846
* parseko/preprocess13.stp, parseok/nineteen.stp,
semok/twentyfive.stp: New tests.
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PR 3522.
* tapsets.cxx (dwflpp::emit_address): Call
_stp_module_relocate only once per session.
Error message cleanup: duplicate elimination etc.
* session.h (saved_errors): Store a set of 'em.
(num_errors): Return set size. Remove old numeric field.
Update all callers.
* elaborate.cxx (systemtap_session::print_errors):
Print each encountered message just once.
* staptree (semantic_error): Make msg2 writeable.
Add a chain field.
* tapsets.cxx (*var_expanding*:visit_target_symbol): Set saved
semantic_error's chain field.
* elaborate.cxx (register_library_aliases, visit_foreach_loop,
visit_functioncall, derive_probes): Plop "while: ..." error
message prefix/suffix right into the semantic_error message string.
* parse.cxx (lexer::scan): Identify erroneous token better
in error message for unresolvable $N/@M command line args.
* util.h (lex_cast_hex): Use std::hex, not std::ios::hex.
2006-12-19 Frank Ch. Eigler <fche@redhat.com>
PR 3522.
* buildok/twentyfive.stp: New test for static $var access.
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* util.h (lex_cast_qstring): Move def'n here. Also quote \.
(stringify, lex_cast, lex_cast_hex): Move defn here.
* buildrun.cxx, elaborate.cxx, main.cxx, staptree.cxx: Adapt.
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* main.cxx (printscript): New function containing code moved from
main().
(main): Added code to create cache directory, call function to
generate hash, and see if we can use cached source/module. If
pass 4 is actually run to produce a new module, we call
add_to_cache() to cache the result.
* session.h (struct systemtap_session): Added hash/cache session
data.
* cache.cxx: New file handling adding/getting files from the
cache.
* cache.h: New header file for cache.cxx.
* hash.cxx: New file containing C++ wrapper for routines in
mdfour.c and the find_hash function which computes the hash file
name for an input script.
* hash.h: New header file for hash.cxx.
* mdfour.c: New file containing MD4 hash code.
* mdfour.h: New header file for mdfour.c.
* util.cxx: New file containing several utility functions used by
the caching code.
* util.h: New header file for util.cxx.
* Makefile.am: Added new C/C++ files.
* Makefile.in: Regenerated.
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