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author | Mark Wielaard <mark@klomp.org> | 2013-08-02 20:49:48 +0200 |
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committer | Stephan Bergmann <sbergman@redhat.com> | 2013-08-03 09:32:03 +0200 |
commit | eeb3b8dc5c771915f9c011e95ae20babdf70bd02 (patch) | |
tree | f1602f8e92a9a0f9873bf0335e03cf23433b9e34 /configure.ac | |
parent | Fix subtotal functions in the status bar. (diff) | |
download | core-eeb3b8dc5c771915f9c011e95ae20babdf70bd02.tar.gz core-eeb3b8dc5c771915f9c011e95ae20babdf70bd02.zip |
Add SDT probes for RTL_LOG_STRING_NEW/DELETE.
Change-Id: I938259f90aee9d277c9ff5b72c9120b93311cbd3
Signed-off-by: Stephan Bergmann <sbergman@redhat.com>
Diffstat (limited to 'configure.ac')
-rw-r--r-- | configure.ac | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 7809430f957f..c623f386d883 100644 --- a/configure.ac +++ b/configure.ac @@ -5322,6 +5322,54 @@ if test "$ENABLE_VALGRIND" = FALSE; then fi AC_SUBST([VALGRIND_CFLAGS]) + +dnl =================================================================== +dnl Check if SDT probes (for systemtap, gdb, dtrace) are available +dnl =================================================================== + +# We need at least the sys/sdt.h include header. +AC_CHECK_HEADER([sys/sdt.h], [SDT_H_FOUND='TRUE'], [SDT_H_FOUND='FALSE']) +if test "$SDT_H_FOUND" = "TRUE"; then + # Found sys/sdt.h header, now make sure the c++ compiler works. + # Old g++ versions had problems with probes in constructors/destructors. + AC_MSG_CHECKING([working sys/sdt.h and c++ support]) + AC_LANG_PUSH([C++]) + AC_LINK_IFELSE([AC_LANG_PROGRAM([[ + #include <sys/sdt.h> + class ProbeClass + { + private: + int& ref; + const char *name; + + public: + ProbeClass(int& v, const char *n) : ref(v), name(n) + { + DTRACE_PROBE2(_test_, cons, name, ref); + } + + void method(int min) + { + DTRACE_PROBE3(_test_, meth, name, ref, min); + ref -= min; + } + + ~ProbeClass() + { + DTRACE_PROBE2(_test_, dest, name, ref); + } + }; + ]],[[ + int i = 64; + DTRACE_PROBE1(_test_, call, i); + ProbeClass inst = ProbeClass(i, "call"); + inst.method(24); + ]])], [AC_MSG_RESULT([yes]); AC_DEFINE([USE_SDT_PROBES])], + [AC_MSG_RESULT([no, sdt.h or c++ compiler too old])]) + AC_LANG_POP([C++]) +fi +AC_CONFIG_HEADERS([config_host/config_probes.h]) + dnl =================================================================== dnl Compiler plugins dnl =================================================================== |