diff options
| -rw-r--r-- | ChangeLog | 11 | ||||
| -rw-r--r-- | Makefile.am | 1 | ||||
| -rw-r--r-- | Makefile.in | 5 | ||||
| -rw-r--r-- | aclocal.m4 | 458 | ||||
| -rw-r--r-- | elaborate.cxx | 15 | ||||
| -rwxr-xr-x | runtest.sh | 25 | ||||
| -rw-r--r-- | stap.1 | 38 | ||||
| -rw-r--r-- | tapsets.cxx | 14 | ||||
| -rwxr-xr-x | testsuite/semko/seventeen.stp | 3 | ||||
| -rwxr-xr-x | testsuite/semko/sixteen.stp | 3 |
10 files changed, 426 insertions, 147 deletions
@@ -1,3 +1,14 @@ +2005-08-01 Frank Ch. Eigler <fche@elastic.org> + + * elaborate.cxx (derive_probes): Print error if results empty. + * tapsets.cxx (dwflpp_assert): Handle positive RCs, which likely + came from errno. + (dwflpp::setup): Improve missing debug-info messages. + * testsuite/semko/sixteen,seventeen.stp: New tests. + * runtest.sh: Save stdout/stderr of FAIL/XPASS test cases. + * Makefile.am (clean-local): Clean up testsuite/. + * Makefile.in, aclocal.m4: Regenerated. + 2005-07-29 Frank Ch. Eigler <fche@redhat.com> From Graydon Hoare <graydon@redhat.com: diff --git a/Makefile.am b/Makefile.am index 153c4cb4..bab563c7 100644 --- a/Makefile.am +++ b/Makefile.am @@ -82,4 +82,5 @@ rpm: dist docs clean-local: rm -f *.gcov *.gcno *.gcda ${PACKAGE_TARNAME}-*.tar.gz + rm -rf testsuite rm -rf ${PACKAGE_TARNAME}-${PACKAGE_VERSION} diff --git a/Makefile.in b/Makefile.in index baae40d9..d464e090 100644 --- a/Makefile.in +++ b/Makefile.in @@ -1,8 +1,8 @@ -# Makefile.in generated by automake 1.9.5 from Makefile.am. +# Makefile.in generated by automake 1.9.2 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, -# 2003, 2004, 2005 Free Software Foundation, Inc. +# 2003, 2004 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -920,6 +920,7 @@ rpm: dist docs clean-local: rm -f *.gcov *.gcno *.gcda ${PACKAGE_TARNAME}-*.tar.gz + rm -rf testsuite rm -rf ${PACKAGE_TARNAME}-${PACKAGE_VERSION} # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. @@ -1,7 +1,7 @@ -# generated automatically by aclocal 1.9.5 -*- Autoconf -*- +# generated automatically by aclocal 1.9.2 -*- Autoconf -*- -# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, -# 2005 Free Software Foundation, Inc. +# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 +# Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -11,11 +11,23 @@ # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. -# Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. +# -*- Autoconf -*- +# Copyright (C) 2002, 2003 Free Software Foundation, Inc. +# Generated from amversion.in; do not edit by hand. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA # AM_AUTOMAKE_VERSION(VERSION) # ---------------------------- @@ -28,15 +40,26 @@ AC_DEFUN([AM_AUTOMAKE_VERSION], [am__api_version="1.9"]) # Call AM_AUTOMAKE_VERSION so it can be traced. # This function is AC_REQUIREd by AC_INIT_AUTOMAKE. AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION], - [AM_AUTOMAKE_VERSION([1.9.5])]) + [AM_AUTOMAKE_VERSION([1.9.2])]) -# AM_AUX_DIR_EXPAND -*- Autoconf -*- +# AM_AUX_DIR_EXPAND -# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. +# Copyright (C) 2001, 2003 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets # $ac_aux_dir to `$srcdir/foo'. In other projects, it is set to @@ -84,14 +107,25 @@ am_aux_dir=`cd $ac_aux_dir && pwd` ]) -# Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2005 +# Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003 # Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. -# serial 4 +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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But this isn't really a big deal. + +# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 # Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. -# serial 12 +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. -# This macro actually does too much. Some checks are only needed if -# your package does certain things. But this isn't really a big deal. +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + AC_DEFUN([AM_PROG_INSTALL_SH], [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl install_sh=${install_sh-"$am_aux_dir/install-sh"} AC_SUBST(install_sh)]) -# Copyright (C) 2003, 2005 Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. +# -*- Autoconf -*- +# Copyright (C) 2003 Free Software Foundation, Inc. -# serial 2 +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + +# serial 1 # Check whether the underlying file-system supports filenames # with a leading dot. For instance MS-DOS doesn't. @@ -512,17 +614,28 @@ fi rmdir .tst 2>/dev/null AC_SUBST([am__leading_dot])]) -# Add --enable-maintainer-mode option to configure. -*- Autoconf -*- +# Add --enable-maintainer-mode option to configure. # From Jim Meyering -# Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005 +# Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004 # Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. -# serial 4 +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + +# serial 3 AC_DEFUN([AM_MAINTAINER_MODE], [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) @@ -541,15 +654,26 @@ AC_DEFUN([AM_MAINTAINER_MODE], AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE]) -# Check to see how 'make' treats includes. -*- Autoconf -*- +# Check to see how 'make' treats includes. -*- Autoconf -*- -# Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. +# Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. -# serial 3 +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + +# serial 2 # AM_MAKE_INCLUDE() # ----------------- @@ -593,16 +717,27 @@ AC_MSG_RESULT([$_am_result]) rm -f confinc confmf ]) -# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*- +# -*- Autoconf -*- -# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2005 -# Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. -# serial 4 +# Copyright (C) 1997, 1999, 2000, 2001, 2003 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + +# serial 3 # AM_MISSING_PROG(NAME, PROGRAM) # ------------------------------ @@ -628,16 +763,27 @@ else fi ]) -# Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - # AM_PROG_MKDIR_P # --------------- # Check whether `mkdir -p' is supported, fallback to mkinstalldirs otherwise. -# + +# Copyright (C) 2003, 2004 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + # Automake 1.8 used `mkdir -m 0755 -p --' to ensure that directories # created by `make install' are always world readable, even if the # installer happens to have an overly restrictive umask (e.g. 077). @@ -691,15 +837,26 @@ else fi AC_SUBST([mkdir_p])]) -# Helper functions for option handling. -*- Autoconf -*- +# Helper functions for option handling. -*- Autoconf -*- -# Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. +# Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. -# serial 3 +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + +# serial 2 # _AM_MANGLE_OPTION(NAME) # ----------------------- @@ -724,14 +881,26 @@ AC_DEFUN([_AM_SET_OPTIONS], AC_DEFUN([_AM_IF_OPTION], [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])]) -# Copyright (C) 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2005 + +# Copyright (C) 1996, 1997, 1998, 2000, 2001, 2002, 2003 # Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. -# serial 4 +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + +# serial 3 AC_DEFUN([AM_C_PROTOTYPES], [AC_REQUIRE([AC_C_PROTOTYPES]) @@ -749,16 +918,28 @@ AC_SUBST(ANSI2KNR)dnl AU_DEFUN([fp_C_PROTOTYPES], [AM_C_PROTOTYPES]) -# Check to make sure that the build environment is sane. -*- Autoconf -*- - -# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005 -# Free Software Foundation, Inc. # -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. +# Check to make sure that the build environment is sane. +# + +# Copyright (C) 1996, 1997, 2000, 2001, 2003 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. -# serial 4 +# serial 3 # AM_SANITY_CHECK # --------------- @@ -801,14 +982,25 @@ Check your system clock]) fi AC_MSG_RESULT(yes)]) -# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - # AM_PROG_INSTALL_STRIP -# --------------------- + +# Copyright (C) 2001, 2003 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + # One issue with vendor `install' (even GNU) is that you can't # specify the program used to strip binaries. This is especially # annoying in cross-compiling environments, where the build's strip @@ -831,13 +1023,25 @@ AC_SUBST([INSTALL_STRIP_PROGRAM])]) # Check how to create a tarball. -*- Autoconf -*- -# Copyright (C) 2004, 2005 Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. +# Copyright (C) 2004 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + +# serial 1 -# serial 2 # _AM_PROG_TAR(FORMAT) # -------------------- diff --git a/elaborate.cxx b/elaborate.cxx index 5ba9f0e3..90de32c7 100644 --- a/elaborate.cxx +++ b/elaborate.cxx @@ -363,18 +363,23 @@ symresolution_info::derive_probes (match_node * root, root->find_builder(loc->components, 0, param_vec); if (!builder) - throw semantic_error ("no match for probe point", loc->tok); + throw semantic_error ("no match for probe point family"); param_vec_to_map(param_vec, param_map); + unsigned num_atbegin = dps.size(); builder->build(session, p, loc, param_map, re_expand, dps); - + // Recursively expand any further-expanding results if (!re_expand.empty()) { for (unsigned j = 0; j < re_expand.size(); ++j) derive_probes(root, re_expand[j], dps); } + + unsigned num_atend = dps.size(); + if (num_atbegin == num_atend) // nothing new derived! + throw semantic_error ("no match for probe point"); } } @@ -617,7 +622,7 @@ semantic_pass_symbols (systemtap_session& s) { cerr << "while resolving probe point list:" << endl; for (unsigned k=0; k<p->locations.size(); k++) - cerr << " " << *p->locations[k] << endl; + cerr << " " << *p->locations[k] << endl; s.print_error (e); // dps.erase (dps.begin(), dps.end()); } @@ -672,7 +677,9 @@ systemtap_session::systemtap_session (): void systemtap_session::print_error (const semantic_error& e) { - cerr << "semantic error: " << e.what () << ": "; + cerr << "semantic error: " << e.what (); + if (e.tok1 || e.tok2) + cerr << ": "; if (e.tok1) cerr << *e.tok1; cerr << e.msg2; if (e.tok2) cerr << *e.tok2; @@ -1,6 +1,10 @@ #! /bin/sh -# Redirect stdout/stderr to /dev/null before invoking the given test +# Collect stdout/stderr someplace else + +if [ ! -d testsuite ]; then + mkdir -p testsuite +fi SRCDIR=`dirname $0` export SRCDIR @@ -11,5 +15,20 @@ export SYSTEMTAP_TAPSET SYSTEMTAP_RUNTIME=$SRCDIR/runtime export SYSTEMTAP_RUNTIME -exec >/dev/null 2>&1 -exec ${1+"$@"} +dn=`dirname $1` +logfile=testsuite/`basename $dn`-`basename $1` + +eval $@ >$logfile.out 2>$logfile.err +rc=$? + +if expr $1 : '.*ok/.*' >/dev/null; then + if [ $rc -eq 0 ]; then + rm -f $logfile.out $logfile.err + fi +else + if [ $rc -ne 0 ]; then + rm -f $logfile.out $logfile.err + fi +fi + +exit $rc @@ -91,9 +91,22 @@ key. .\" XXX add statistics type here once it's supported .SS STATEMENTS -Statements enable procedural control flow. +Statements enable procedural control flow. They may occur within +functions and probe handlers. .TP +EXP +Execute the string- or integer-valued expression and throw away +the value. +.TP +.BR { " STMT1 STMT2 ... " } +Execute each statement in sequence in this block. Note that no +separators or terminators are necessary between statements. +.TP +.BR ; +Null statement, do nothing. It is useful as an optional separator between +statements, in order to improve syntax error reporting. +.TP .BR if " (EXP) STMT1 [ " else " STMT2 ]" Compare integer-valued EXP to zero. Execute the first (non-zero) or second STMT (zero). @@ -105,16 +118,29 @@ While integer-valued EXP evaluates to non-zero, execute STMT. Execute EXP2 as initialization. While EXP1 is non-zero, execute STMT, then the iteration expression EXP1. .TP +.BR foreach " (VAR " in " ARRAY) STMT" +Loop over each element of the named global array, assigning current +key to VAR. The array may not be modified within the statement. +.TP +.BR foreach " ((VAR1, VAR2, ...) " in " ARRAY) STMT" +Same as above, used when the array is indexed with a tuple of keys. +.TP .BR break ", " continue -Exit or iterate nesting -.BR while " or " for +Exit or iterate the innermost nesting loop +.RB ( while " or " for " or " foreach ) statement. .TP -EXP -Execute the string- or integer-valued expression and throw away -the value. +.BR return " EXP" +Return EXP value from enclosing function. A return value is mandatory, +since void functions are not supported. +.TP +.BR next +Return from enclosing probe handler. .SS EXPRESSIONS +Systemtap supports a number of operators, with the same general syntax, +semantics and precedence as in C and awk. + .SS PROBES The main construct in the scripting language identifies probes. diff --git a/tapsets.cxx b/tapsets.cxx index e6d1c7dd..a51ce4e4 100644 --- a/tapsets.cxx +++ b/tapsets.cxx @@ -315,11 +315,13 @@ dwflpp return t; } - void dwflpp_assert(string desc, int rc) + void dwflpp_assert(string desc, int rc) // NB: "rc == 0" means OK in this case { + string msg = "dwfl failure (" + desc + "): "; + if (rc < 0) msg += dwfl_errmsg (rc); + else if (rc > 0) msg += strerror (rc); if (rc != 0) - throw semantic_error("dwfl failure (" + desc + "): " - + dwfl_errmsg(rc)); + throw semantic_error (msg); } dwflpp(systemtap_session & sess) @@ -357,8 +359,10 @@ dwflpp if (!dwfl) throw semantic_error("cannot open dwfl"); dwfl_report_begin(dwfl); - dwflpp_assert("report_kernel", dwfl_linux_kernel_report_kernel(dwfl)); - dwflpp_assert("report_modules", dwfl_linux_kernel_report_modules(dwfl)); + // XXX: if we have only kernel.* probe points, we shouldn't waste time + // looking for module debug-info (and vice versa). + dwflpp_assert("find kernel debug-info", dwfl_linux_kernel_report_kernel(dwfl)); + dwflpp_assert("find modules debug-info", dwfl_linux_kernel_report_modules(dwfl)); } else { diff --git a/testsuite/semko/seventeen.stp b/testsuite/semko/seventeen.stp new file mode 100755 index 00000000..15b4ca5a --- /dev/null +++ b/testsuite/semko/seventeen.stp @@ -0,0 +1,3 @@ +#! stap -p2 + +probe module("no_such_module").function("*") { } diff --git a/testsuite/semko/sixteen.stp b/testsuite/semko/sixteen.stp new file mode 100755 index 00000000..6e554704 --- /dev/null +++ b/testsuite/semko/sixteen.stp @@ -0,0 +1,3 @@ +#! stap -p2 + +probe kernel.function("no_such_function_anywhere_guaranteed") { } |