DTrace support: function calls, GC activity, line execution
Tested on macOS 10.11 dtrace, Ubuntu 16.04 SystemTap, and libbcc.
Largely based by an initial patch by Jesús Cea Avión, with some
influence from Dave Malcolm's SystemTap patch and Nikhil Benesch's
unification patch.
Things deliberately left out for simplicity:
- ustack helpers, I have no way of testing them at this point since
they are Solaris-specific
- PyFrameObject * in function__entry/function__return, this is
SystemTap-specific
- SPARC support
- dynamic tracing
- sys module dtrace facility introspection
All of those might be added later.
diff --git a/configure b/configure
index 3998a32..fae0791 100755
--- a/configure
+++ b/configure
@@ -642,6 +642,10 @@
MACHDEP_OBJS
DYNLOADFILE
DLINCLDIR
+DTRACE_OBJS
+DTRACE_HEADERS
+DFLAGS
+DTRACE
THREADOBJ
LDLAST
USE_THREAD_MODULE
@@ -713,6 +717,7 @@
ac_ct_CXX
MAINCC
CXX
+SED
GREP
CPP
OBJEXT
@@ -780,7 +785,6 @@
docdir
oldincludedir
includedir
-runstatedir
localstatedir
sharedstatedir
sysconfdir
@@ -832,6 +836,7 @@
with_doc_strings
with_pymalloc
with_valgrind
+with_dtrace
with_fpectl
with_libm
with_libc
@@ -890,7 +895,6 @@
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
-runstatedir='${localstatedir}/run'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -1143,15 +1147,6 @@
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
- -runstatedir | --runstatedir | --runstatedi | --runstated \
- | --runstate | --runstat | --runsta | --runst | --runs \
- | --run | --ru | --r)
- ac_prev=runstatedir ;;
- -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
- | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
- | --run=* | --ru=* | --r=*)
- runstatedir=$ac_optarg ;;
-
-sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
ac_prev=sbindir ;;
-sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1289,7 +1284,7 @@
for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
datadir sysconfdir sharedstatedir localstatedir includedir \
oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
- libdir localedir mandir runstatedir
+ libdir localedir mandir
do
eval ac_val=\$$ac_var
# Remove trailing slashes.
@@ -1442,7 +1437,6 @@
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
- --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
@@ -1535,6 +1529,7 @@
--with(out)-doc-strings disable/enable documentation strings
--with(out)-pymalloc disable/enable specialized mallocs
--with-valgrind Enable Valgrind support
+ --with(out)-dtrace disable/enable DTrace support
--with-fpectl enable SIGFPE catching
--with-libm=STRING math library
--with-libc=STRING C library
@@ -4581,6 +4576,75 @@
GREP="$ac_cv_path_GREP"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+ for ac_i in 1 2 3 4 5 6 7; do
+ ac_script="$ac_script$as_nl$ac_script"
+ done
+ echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+ { ac_script=; unset ac_script;}
+ if test -z "$SED"; then
+ ac_path_SED_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in sed gsed; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+ as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+ # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+ ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+ ac_count=0
+ $as_echo_n 0123456789 >"conftest.in"
+ while :
+ do
+ cat "conftest.in" "conftest.in" >"conftest.tmp"
+ mv "conftest.tmp" "conftest.in"
+ cp "conftest.in" "conftest.nl"
+ $as_echo '' >> "conftest.nl"
+ "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+ diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+ as_fn_arith $ac_count + 1 && ac_count=$as_val
+ if test $ac_count -gt ${ac_path_SED_max-0}; then
+ # Best one so far, save it but keep looking for a better one
+ ac_cv_path_SED="$ac_path_SED"
+ ac_path_SED_max=$ac_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test $ac_count -gt 10 && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+ $ac_path_SED_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_SED"; then
+ as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+ fi
+else
+ ac_cv_path_SED=$SED
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+ rm -f conftest.sed
+
@@ -10864,6 +10928,102 @@
OPT="-DDYNAMIC_ANNOTATIONS_ENABLED=1 $OPT"
fi
+# Check for DTrace support
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-dtrace" >&5
+$as_echo_n "checking for --with-dtrace... " >&6; }
+
+# Check whether --with-dtrace was given.
+if test "${with_dtrace+set}" = set; then :
+ withval=$with_dtrace;
+else
+ with_dtrace=no
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_dtrace" >&5
+$as_echo "$with_dtrace" >&6; }
+
+
+
+
+
+DTRACE=
+DFLAGS=
+DTRACE_HEADERS=
+DTRACE_OBJS=
+
+if test "$with_dtrace" = "yes"
+then
+ # Extract the first word of "dtrace", so it can be a program name with args.
+set dummy dtrace; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_DTRACE+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $DTRACE in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_DTRACE="$DTRACE" # Let the user override the test with a path.
+ ;;
+ *)
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_path_DTRACE="$as_dir/$ac_word$ac_exec_ext"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_path_DTRACE" && ac_cv_path_DTRACE="not found"
+ ;;
+esac
+fi
+DTRACE=$ac_cv_path_DTRACE
+if test -n "$DTRACE"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DTRACE" >&5
+$as_echo "$DTRACE" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ if test "$DTRACE" = "not found"; then
+ as_fn_error $? "dtrace command not found on \$PATH" "$LINENO" 5
+ fi
+
+$as_echo "#define WITH_DTRACE 1" >>confdefs.h
+
+ DTRACE_HEADERS="Include/pydtrace_probes.h"
+
+ # On OS X, DTrace providers do not need to be explicitly compiled and
+ # linked into the binary. Correspondingly, dtrace(1) is missing the ELF
+ # generation flag '-G'. We check for presence of this flag, rather than
+ # hardcoding support by OS, in the interest of robustness.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether DTrace probes require linking" >&5
+$as_echo_n "checking whether DTrace probes require linking... " >&6; }
+if ${ac_cv_dtrace_link+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_cv_dtrace_link=no
+ echo 'BEGIN' > conftest.d
+ "$DTRACE" -G -s conftest.d -o conftest.o > /dev/null 2>&1 && \
+ ac_cv_dtrace_link=yes
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_dtrace_link" >&5
+$as_echo "$ac_cv_dtrace_link" >&6; }
+ if test "$ac_cv_dtrace_link" = "yes"; then
+ DTRACE_OBJS="Python/pydtrace.o"
+ fi
+fi
+
# -I${DLINCLDIR} is added to the compile rule for importdl.o
DLINCLDIR=.