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-rw-r--r--erts/aclocal.m469
-rw-r--r--erts/configure.in57
-rw-r--r--erts/doc/src/erl.xml8
-rw-r--r--erts/doc/src/erl_driver.xml6
-rw-r--r--erts/doc/src/erlang.xml28
-rw-r--r--erts/doc/src/run_erl.xml11
-rw-r--r--erts/emulator/beam/erl_bif_trace.c10
-rw-r--r--erts/emulator/beam/erl_nif.c6
-rw-r--r--erts/emulator/sys/unix/sys.c4
-rw-r--r--erts/emulator/test/trace_SUITE.erl32
-rw-r--r--erts/etc/unix/cerl.src18
-rw-r--r--erts/etc/unix/etp-commands.in72
-rw-r--r--erts/preloaded/ebin/init.beambin50032 -> 50040 bytes
-rw-r--r--erts/preloaded/src/init.erl4
14 files changed, 259 insertions, 66 deletions
diff --git a/erts/aclocal.m4 b/erts/aclocal.m4
index 013bfe5652..6c0544da31 100644
--- a/erts/aclocal.m4
+++ b/erts/aclocal.m4
@@ -736,10 +736,23 @@ AC_DEFUN(ERL_MONOTONIC_CLOCK,
;;
esac
+ clock_gettime_lib=""
+ AC_CHECK_LIB(rt, clock_gettime, [clock_gettime_lib="-lrt"])
+
+ save_LIBS="$LIBS"
+ LIBS="$LIBS $clock_gettime_lib"
+
+ if test "$LD_MAY_BE_WEAK" != "no"; then
+ trust_test="#error May not be there due to weak linking"
+ else
+ trust_test=""
+ fi
+
AC_CACHE_CHECK([for clock_gettime(CLOCK_MONOTONIC_RAW, _)], erl_cv_clock_gettime_monotonic_raw,
[
- AC_TRY_COMPILE([
+ AC_TRY_LINK([
#include <time.h>
+$trust_test
],
[
struct timespec ts;
@@ -755,8 +768,9 @@ AC_DEFUN(ERL_MONOTONIC_CLOCK,
AC_CACHE_CHECK([for clock_gettime() with ${check_msg}monotonic clock type], erl_cv_clock_gettime_monotonic_$1,
[
for clock_type in $prefer_resolution_clock_gettime_monotonic $default_resolution_clock_gettime_monotonic $high_resolution_clock_gettime_monotonic $low_resolution_clock_gettime_monotonic; do
- AC_TRY_COMPILE([
+ AC_TRY_LINK([
#include <time.h>
+$trust_test
],
[
struct timespec ts;
@@ -771,7 +785,15 @@ AC_DEFUN(ERL_MONOTONIC_CLOCK,
done
])
- AC_CHECK_FUNCS([clock_getres clock_get_attributes gethrtime])
+ LIBS="$save_LIBS"
+
+ if test "$LD_MAY_BE_WEAK" != "no"; then
+ check_for_clock_getres=
+ else
+ check_for_clock_getres=clock_getres
+ fi
+
+ AC_CHECK_FUNCS([$check_for_clock_getres clock_get_attributes gethrtime])
AC_CACHE_CHECK([for mach clock_get_time() with monotonic clock type], erl_cv_mach_clock_get_time_monotonic,
[
@@ -840,7 +862,7 @@ AC_DEFUN(ERL_MONOTONIC_CLOCK,
break
fi
done
- AC_CHECK_LIB(rt, clock_gettime, [erl_monotonic_clock_lib="-lrt"])
+ erl_monotonic_clock_lib=$clock_gettime_lib
;;
mach_clock_get_time)
erl_monotonic_clock_id=SYSTEM_CLOCK
@@ -879,11 +901,24 @@ AC_DEFUN(ERL_WALL_CLOCK,
;;
esac
+ clock_gettime_lib=""
+ AC_CHECK_LIB(rt, clock_gettime, [clock_gettime_lib="-lrt"])
+
+ save_LIBS="$LIBS"
+ LIBS="$LIBS $clock_gettime_lib"
+
+ if test "$LD_MAY_BE_WEAK" != "no"; then
+ trust_test="#error May not be there due to weak linking"
+ else
+ trust_test=""
+ fi
+
AC_CACHE_CHECK([for clock_gettime() with ${check_msg}wall clock type], erl_cv_clock_gettime_wall_$1,
[
for clock_type in $prefer_resolution_clock_gettime_wall $default_resolution_clock_gettime_wall $high_resolution_clock_gettime_wall $low_resolution_clock_gettime_wall; do
- AC_TRY_COMPILE([
+ AC_TRY_LINK([
#include <time.h>
+$trust_test
],
[
struct timespec ts;
@@ -898,7 +933,15 @@ AC_DEFUN(ERL_WALL_CLOCK,
done
])
- AC_CHECK_FUNCS([clock_getres clock_get_attributes gettimeofday])
+ LIBS="$save_LIBS"
+
+ if test "$LD_MAY_BE_WEAK" != "no"; then
+ check_for_clock_getres=
+ else
+ check_for_clock_getres=clock_getres
+ fi
+
+ AC_CHECK_FUNCS([$check_for_clock_getres clock_get_attributes gettimeofday])
AC_CACHE_CHECK([for mach clock_get_time() with wall clock type], erl_cv_mach_clock_get_time_wall,
[
@@ -919,6 +962,7 @@ AC_DEFUN(ERL_WALL_CLOCK,
erl_cv_mach_clock_get_time_wall=no)
])
+ erl_wall_clock_lib=
erl_wall_clock_low_resolution=no
erl_wall_clock_id=
case $1-$erl_cv_clock_gettime_wall_$1-$erl_cv_mach_clock_get_time_wall-$ac_cv_func_gettimeofday-$host_os in
@@ -932,6 +976,7 @@ AC_DEFUN(ERL_WALL_CLOCK,
;;
*-CLOCK_*-*-*-*)
erl_wall_clock_func=clock_gettime
+ erl_wall_clock_lib=$clock_gettime_lib
erl_wall_clock_id=$erl_cv_clock_gettime_wall_$1
for low_res_id in $low_resolution_clock_gettime_wall; do
if test $erl_wall_clock_id = $low_res_id; then
@@ -1680,7 +1725,7 @@ case "$THR_LIB_NAME" in
AC_DEFINE(ETHR_HAVE_SCHED_YIELD, 1, [Define if you have the sched_yield() function.])
AC_MSG_CHECKING([whether sched_yield() returns an int])
sched_yield_ret_int=no
- AC_TRY_COMPILE([
+ AC_TRY_LINK([
#ifdef ETHR_HAVE_SCHED_H
#include <sched.h>
#endif
@@ -1699,7 +1744,7 @@ case "$THR_LIB_NAME" in
AC_DEFINE(ETHR_HAVE_PTHREAD_YIELD, 1, [Define if you have the pthread_yield() function.])
AC_MSG_CHECKING([whether pthread_yield() returns an int])
pthread_yield_ret_int=no
- AC_TRY_COMPILE([
+ AC_TRY_LINK([
#if defined(ETHR_NEED_NPTL_PTHREAD_H)
#include <nptl/pthread.h>
#elif defined(ETHR_HAVE_MIT_PTHREAD_H)
@@ -2436,7 +2481,13 @@ if test $erl_monotonic_clock_low_resolution = yes; then
AC_DEFINE(ERTS_HAVE_LOW_RESOLUTION_OS_MONOTONIC_LOW, [1], [Define if you have a low resolution OS monotonic clock])
fi
-xrtlib="$erl_monotonic_clock_lib"
+xrtlib=
+if test "$erl_monotonic_clock_lib" != ""; then
+ xrtlib="$erl_monotonic_clock_lib"
+fi
+if test "$erl_wall_clock_lib" != ""; then
+ xrtlib="$erl_wall_clock_lib"
+fi
if test "x$erl_monotonic_clock_id" != "x"; then
AC_DEFINE_UNQUOTED(MONOTONIC_CLOCK_ID_STR, ["$erl_monotonic_clock_id"], [Define as a string of monotonic clock id to use])
AC_DEFINE_UNQUOTED(MONOTONIC_CLOCK_ID, [$erl_monotonic_clock_id], [Define to monotonic clock id to use])
diff --git a/erts/configure.in b/erts/configure.in
index 883ce2db68..4799178583 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -196,12 +196,18 @@ AS_HELP_STRING([--disable-kernel-poll], [disable kernel poll support]),
AC_ARG_ENABLE(sctp,
-AS_HELP_STRING([--enable-sctp], [enable sctp support (default)])
+AS_HELP_STRING([--enable-sctp], [enable sctp support (default)
+to on demand load the SCTP library in runtime if needed])
+AS_HELP_STRING([--enable-sctp=lib], [enable sctp support
+to link against the SCTP library])
AS_HELP_STRING([--disable-sctp], [disable sctp support]),
-[ case "$enableval" in
- no) enable_sctp=no ;;
- *) enable_sctp=yes ;;
- esac ], enable_sctp=unknown)
+[ case "x$enableval" in
+ xno|xyes|xlib|x)
+ ;;
+ x*)
+ AC_MSG_ERROR("invalid value --enable-sctp=$enableval")
+ ;;
+ esac ])
AC_ARG_ENABLE(hipe,
AS_HELP_STRING([--enable-hipe], [enable hipe support])
@@ -875,6 +881,22 @@ dnl for now that is the way we do it.
USER_LD=$LD
USER_LDFLAGS="$LDFLAGS"
LD='$(CC)'
+case $host_os in
+ darwin*)
+ saved_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -Wl,-no_weak_imports"
+ AC_TRY_LINK([],[],
+ [
+ LD_MAY_BE_WEAK=no
+ ],
+ [
+ LD_MAY_BE_WEAK=yes
+ LDFLAGS="$saved_LDFLAGS"
+ ]);;
+ *)
+ LD_MAY_BE_WEAK=no;;
+esac
+
AC_SUBST(LD)
LDFLAG_RUNTIME_LIBRARY_PATH="$CFLAG_RUNTIME_LIBRARY_PATH"
@@ -1710,8 +1732,9 @@ if test "x$enable_sctp" != "xno" ; then
fi
if test x"$ac_cv_header_netinet_sctp_h" = x"yes"; then
- AC_CHECK_LIB(sctp, sctp_bindx)
- AC_CHECK_FUNCS([sctp_peeloff sctp_getladdrs sctp_freeladdrs sctp_getpaddrs sctp_freepaddrs])
+ AS_IF([test "x$enable_sctp" = "xlib"],
+ AC_CHECK_LIB(sctp, sctp_bindx))
+ AC_CHECK_FUNCS([sctp_bindx sctp_peeloff sctp_getladdrs sctp_freeladdrs sctp_getpaddrs sctp_freepaddrs])
AC_CHECK_DECLS([SCTP_UNORDERED, SCTP_ADDR_OVER, SCTP_ABORT,
SCTP_EOF, SCTP_SENDALL, SCTP_ADDR_CONFIRMED,
SCTP_DELAYED_ACK_TIME,
@@ -1964,7 +1987,7 @@ getaddrinfo("","",NULL,NULL);
if test $have_getaddrinfo = yes; then
AC_MSG_RESULT([yes])
AC_MSG_CHECKING([whether getaddrinfo accepts enough flags])
- AC_TRY_COMPILE([
+ AC_TRY_LINK([
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_WINSOCK2_H
@@ -2079,7 +2102,7 @@ int main(void) {
fi]);;
esac
-if test $have_posix_memalign = yes; then
+if test "$have_posix_memalign" = "yes"; then
AC_DEFINE(HAVE_POSIX_MEMALIGN,[1],
[Define to 1 if you have the `posix_memalign' function.])
fi
@@ -2221,7 +2244,7 @@ dnl Checks for features/quirks in the system that affects Erlang.
dnl ----------------------------------------------------------------------
AC_MSG_CHECKING([for sched_getaffinity/sched_setaffinity])
-AC_TRY_COMPILE([#include <sched.h>],
+AC_TRY_LINK([#include <sched.h>],
[
#ifndef CPU_SETSIZE
#error no CPU_SETSIZE
@@ -2244,7 +2267,7 @@ fi
AC_MSG_CHECKING([for pset functionality])
-AC_TRY_COMPILE([#include <sys/pset.h>],
+AC_TRY_LINK([#include <sys/pset.h>],
[
int res;
psetid_t id = PS_MYID;
@@ -2262,7 +2285,7 @@ if test $pset_functionality = yes; then
fi
AC_MSG_CHECKING([for processor_bind functionality])
-AC_TRY_COMPILE([
+AC_TRY_LINK([
#include <sys/types.h>
#include <sys/processor.h>
#include <sys/procset.h>
@@ -2278,7 +2301,7 @@ if test $processor_bind_functionality = yes; then
fi
AC_MSG_CHECKING([for cpuset_getaffinity/cpuset_setaffinity])
-AC_TRY_COMPILE([
+AC_TRY_LINK([
#include <sys/param.h>
#include <sys/cpuset.h>
],
@@ -2477,7 +2500,7 @@ if test "x$ac_cv_func_sbrk" = "xyes"; then
for rtype in $ret_types; do
for atype in $arg_types; do
IFS=$save_ifs
- AC_TRY_COMPILE([#include <sys/types.h>
+ AC_TRY_LINK([#include <sys/types.h>
#include <unistd.h>],
[$rtype sbrk($atype incr);],
[erts_cv_sbrk_ret_arg_types="$rtype,$atype"])
@@ -2514,7 +2537,7 @@ if test $ac_cv_func_brk = yes; then
for rtype in $ret_types; do
for atype in $arg_types; do
IFS=$save_ifs
- AC_TRY_COMPILE([#include <sys/types.h>
+ AC_TRY_LINK([#include <sys/types.h>
#include <unistd.h>],
[$rtype brk($atype endds);],
[erts_cv_brk_ret_arg_types="$rtype,$atype"])
@@ -2798,7 +2821,7 @@ if test X${enable_fp_exceptions} != Xyes ; then
FPE=unreliable
else
- AC_MSG_CHECKING([for unreliable floating point execptions])
+ AC_MSG_CHECKING([for unreliable floating point exceptions])
AC_TRY_RUN([
@@ -3536,7 +3559,7 @@ fi
#
if test $have_kernel_poll = epoll; then
AC_MSG_CHECKING([whether epoll is level triggered])
- AC_TRY_COMPILE([#include <sys/epoll.h>],[
+ AC_TRY_LINK([#include <sys/epoll.h>],[
#ifdef EPOLLET
/* Edge triggered option exist, assume level triggered
is default */
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index f62d3fb170..eb1d24cf12 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -393,9 +393,11 @@
<tag><c><![CDATA[-pa Dir1 Dir2 ...]]></c></tag>
<item>
<p>Adds the specified directories to the beginning of the code
- path, similar to <c><![CDATA[code:add_pathsa/1]]></c>; see
- <seealso marker="kernel:code"><c>code(3)</c></seealso>.
- As an alternative to <c>-pa</c>, if several directories are
+ path, similar to <seealso marker="kernel:code#add_pathsa/1">
+ <c><![CDATA[code:add_pathsa/1]]></c></seealso>. Note that the
+ order of the given directories will be reversed in the
+ resulting path.</p>
+ <p>As an alternative to <c>-pa</c>, if several directories are
to be prepended to the code path and the directories have a
common parent directory, that parent directory can be
specified in environment variable <c>ERL_LIBS</c>; see
diff --git a/erts/doc/src/erl_driver.xml b/erts/doc/src/erl_driver.xml
index 836a58a676..5191742bc9 100644
--- a/erts/doc/src/erl_driver.xml
+++ b/erts/doc/src/erl_driver.xml
@@ -1916,9 +1916,9 @@ r = driver_async(myPort, &myKey, myData, myFunc); ]]></code>
returned. Another thread can still be using the event object
internally. To safely close an event object, call
<c>driver_select</c> with <c>ERL_DRV_USE</c> and <c>on==0</c>, which
- clears all events. Then call
- <seealso marker="driver_entry#stop_select">
- <c>stop_select</c></seealso> when it is safe to close the event
+ clears all events and then either calls
+ <seealso marker="driver_entry#stop_select"><c>stop_select</c></seealso>
+ or schedules it to be called when it is safe to close the event
object. <c>ERL_DRV_USE</c> is to be set together with the first event
for an event object. It is harmless to set <c>ERL_DRV_USE</c>
even if it already has been done. Clearing all events but keeping
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 950a5fe189..b0d25389fd 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -516,7 +516,14 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
<desc>
<p>Returns an Erlang term that is the result of decoding
binary object <c><anno>Binary</anno></c>, which must be encoded
- according to the Erlang external term format.</p>
+ according to the <seealso marker="erts:erl_ext_dist">
+ Erlang external term format</seealso>.</p>
+ <pre>
+> <input>Bin = term_to_binary(hello).</input>
+&lt;&lt;131,100,0,5,104,101,108,108,111>>
+> <input>hello = binary_to_term(Bin).</input>
+hello
+</pre>
<warning>
<p>When decoding binaries from untrusted sources,
consider using <c>binary_to_term/2</c> to prevent Denial
@@ -555,6 +562,14 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
</taglist>
<p>Failure: <c>badarg</c> if <c>safe</c> is specified and unsafe
data is decoded.</p>
+ <pre>
+> <input>binary_to_term(&lt;&lt;131,100,0,5,104,101,108,108,111>>, [safe]).</input>
+** exception error: bad argument
+> <input>hello.</input>
+hello
+> <input>binary_to_term(&lt;&lt;131,100,0,5,104,101,108,108,111>>, [safe]).</input>
+hello
+</pre>
<p>See also
<seealso marker="#term_to_binary/1"><c>term_to_binary/1</c></seealso>,
<seealso marker="#binary_to_term/1">
@@ -8599,12 +8614,19 @@ ok
</fsummary>
<desc>
<p>Returns a binary data object that is the result of encoding
- <c><anno>Term</anno></c> according to the Erlang external
- term format.</p>
+ <c><anno>Term</anno></c> according to the
+ <seealso marker="erts:erl_ext_dist">Erlang external
+ term format.</seealso></p>
<p>This can be used for various purposes, for example,
writing a term to a file in an efficient way, or sending an
Erlang term to some type of communications channel not
supported by distributed Erlang.</p>
+ <pre>
+> <input>Bin = term_to_binary(hello).</input>
+&lt;&lt;131,100,0,5,104,101,108,108,111>>
+> <input>hello = binary_to_term(Bin).</input>
+hello
+</pre>
<p>See also <seealso marker="#binary_to_term/1">
<c>binary_to_term/1</c></seealso>.</p>
</desc>
diff --git a/erts/doc/src/run_erl.xml b/erts/doc/src/run_erl.xml
index ad7b2c5b85..a9b6a7e2c6 100644
--- a/erts/doc/src/run_erl.xml
+++ b/erts/doc/src/run_erl.xml
@@ -49,7 +49,7 @@
<funcs>
<func>
<name>run_erl [-daemon] pipe_dir/ log_dir "exec command
- [command_arguments]"</name>
+ arg1 arg2 ..."</name>
<fsummary>Start the Erlang emulator without attached terminal.</fsummary>
<desc>
<p>Arguments:</p>
@@ -92,11 +92,10 @@
</item>
</list>
</item>
- <tag><c>"exec command [command_arguments]"</c></tag>
+ <tag><c>"exec command arg1 arg2 ..."</c></tag>
<item>
- <p>In the third argument, <c><![CDATA[command]]></c> is the
- executable to execute where everything written to <c>stdin</c>
- and <c>stdout</c> is logged to <c><![CDATA[log_dir]]></c>.</p>
+ <p>A space-separated string specifying the program to be executed.
+ The second field is typically a command name such as <c>erl</c>.</p>
</item>
</taglist>
</desc>
@@ -105,7 +104,7 @@
<section>
<title>Notes concerning the Log Files</title>
- <p>While running, <c>run_erl</c> (as stated earlier) sends all output,
+ <p>While running, <c>run_erl</c> sends all output,
uninterpreted, to a log file. The file is named
<c><![CDATA[erlang.log.N]]></c>, where <c>N</c> is an integer. When the
log is "full" (default log size is 100 KB), <c>run_erl</c> starts to log
diff --git a/erts/emulator/beam/erl_bif_trace.c b/erts/emulator/beam/erl_bif_trace.c
index 66e5146da0..96275eb228 100644
--- a/erts/emulator/beam/erl_bif_trace.c
+++ b/erts/emulator/beam/erl_bif_trace.c
@@ -512,7 +512,7 @@ start_trace(Process *c_p, ErtsTracer tracer,
&& !ERTS_TRACER_COMPARE(ERTS_TRACER(port), tracer)) {
/* This tracee is already being traced, and not by the
* tracer to be */
- if (erts_is_tracer_enabled(tracer, common)) {
+ if (erts_is_tracer_enabled(ERTS_TRACER(port), common)) {
/* The tracer is still in use */
return 1;
}
@@ -715,8 +715,8 @@ Eterm erts_internal_trace_3(BIF_ALIST_3)
Process* tracee_p = erts_pix2proc(i);
if (! tracee_p)
continue;
- start_trace(p, tracer, &tracee_p->common, on, mask);
- matches++;
+ if (!start_trace(p, tracer, &tracee_p->common, on, mask))
+ matches++;
}
}
if (ports || mods) {
@@ -730,8 +730,8 @@ Eterm erts_internal_trace_3(BIF_ALIST_3)
state = erts_atomic32_read_nob(&tracee_port->state);
if (state & ERTS_PORT_SFLGS_DEAD)
continue;
- start_trace(p, tracer, &tracee_port->common, on, mask);
- matches++;
+ if (!start_trace(p, tracer, &tracee_port->common, on, mask))
+ matches++;
}
}
}
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 3a547982da..9a873857b9 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -3360,7 +3360,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
veto = entry->reload(&env, &lib->priv_data, BIF_ARG_2);
erts_post_nif(&env);
if (veto) {
- ret = load_nif_error(BIF_P, reload, "Library reload-call unsuccessful.");
+ ret = load_nif_error(BIF_P, reload, "Library reload-call unsuccessful (%d).", veto);
}
else {
commit_opened_resource_types(lib);
@@ -3382,7 +3382,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
erts_post_nif(&env);
if (veto) {
prev_mi->nif->priv_data = prev_old_data;
- ret = load_nif_error(BIF_P, upgrade, "Library upgrade-call unsuccessful.");
+ ret = load_nif_error(BIF_P, upgrade, "Library upgrade-call unsuccessful (%d).", veto);
}
else
commit_opened_resource_types(lib);
@@ -3392,7 +3392,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
veto = entry->load(&env, &lib->priv_data, BIF_ARG_2);
erts_post_nif(&env);
if (veto) {
- ret = load_nif_error(BIF_P, "load", "Library load-call unsuccessful.");
+ ret = load_nif_error(BIF_P, "load", "Library load-call unsuccessful (%d).", veto);
}
else
commit_opened_resource_types(lib);
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index 089efec3e8..b0e623a5b9 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -715,13 +715,13 @@ static RETSIGTYPE suspend_signal(void)
static RETSIGTYPE suspend_signal(int signum)
#endif
{
- int res, buf[1], __errno = errno;
+ int res, buf[1], tmp_errno = errno;
do {
res = read(sig_suspend_fds[0], buf, sizeof(int));
} while (res < 0 && errno == EINTR);
/* restore previous errno in case read changed it */
- errno = __errno;
+ errno = tmp_errno;
}
#endif /* #ifdef ERTS_SYS_SUSPEND_SIGNAL */
diff --git a/erts/emulator/test/trace_SUITE.erl b/erts/emulator/test/trace_SUITE.erl
index da6a6bdea4..f846b0f4b9 100644
--- a/erts/emulator/test/trace_SUITE.erl
+++ b/erts/emulator/test/trace_SUITE.erl
@@ -30,7 +30,7 @@
procs_trace/1, dist_procs_trace/1, procs_new_trace/1,
suspend/1, mutual_suspend/1, suspend_exit/1, suspender_exit/1,
suspend_system_limit/1, suspend_opts/1, suspend_waiting/1,
- new_clear/1, existing_clear/1,
+ new_clear/1, existing_clear/1, tracer_die/1,
set_on_spawn/1, set_on_first_spawn/1, cpu_timestamp/1,
set_on_link/1, set_on_first_link/1,
system_monitor_args/1, more_system_monitor_args/1,
@@ -54,7 +54,7 @@ all() ->
send_trace, procs_trace, dist_procs_trace, suspend,
mutual_suspend, suspend_exit, suspender_exit,
suspend_system_limit, suspend_opts, suspend_waiting,
- new_clear, existing_clear, set_on_spawn,
+ new_clear, existing_clear, tracer_die, set_on_spawn,
set_on_first_spawn, set_on_link, set_on_first_link,
system_monitor_args,
more_system_monitor_args, system_monitor_long_gc_1,
@@ -1636,6 +1636,34 @@ existing_clear(Config) when is_list(Config) ->
ok.
+%% Test that erlang:trace/3 can be called on processes where the
+%% tracer has died. OTP-13928
+tracer_die(Config) when is_list(Config) ->
+ Proc = spawn(fun receiver/0),
+
+ Tracer = spawn(fun receiver/0),
+ timer:sleep(1),
+ N = erlang:trace(existing, true, [send, {tracer, Tracer}]),
+ {flags, [send]} = erlang:trace_info(Proc, flags),
+ {tracer, Tracer} = erlang:trace_info(Proc, tracer),
+ exit(Tracer, die),
+
+ Tracer2 = spawn(fun receiver/0),
+ timer:sleep(1),
+ N = erlang:trace(existing, true, [send, {tracer, Tracer2}]),
+ {flags, [send]} = erlang:trace_info(Proc, flags),
+ {tracer, Tracer2} = erlang:trace_info(Proc, tracer),
+ exit(Tracer2, die),
+
+ Tracer3 = spawn(fun receiver/0),
+ timer:sleep(1),
+ 1 = erlang:trace(Proc, true, [send, {tracer, Tracer3}]),
+ {flags, [send]} = erlang:trace_info(Proc, flags),
+ {tracer, Tracer3} = erlang:trace_info(Proc, tracer),
+ exit(Tracer3, die),
+
+ ok.
+
%% Test that an invalid flag cause badarg
bad_flag(Config) when is_list(Config) ->
%% A bad flag could deadlock the SMP emulator in erts-5.5
diff --git a/erts/etc/unix/cerl.src b/erts/etc/unix/cerl.src
index c5422ab2ed..30f2d831b5 100644
--- a/erts/etc/unix/cerl.src
+++ b/erts/etc/unix/cerl.src
@@ -399,19 +399,29 @@ elif [ "x$GDB" = "xdump" ]; then
cmdfile="/tmp/.cerlgdb.$$"
case "x$core" in
x/*)
- gdbcmd="$EMU_NAME ${core}"
;;
*)
dir=`pwd`
- gdbcmd="$EMU_NAME ${dir}/${core}"
+ core="${dir}/${core}"
;;
esac
- echo "set width 0
+ case `uname` in
+ Darwin)
+ echo "
+thread backtrace all
+quit
+" > $cmdfile
+ exec lldb -s $cmdfile -c ${core} $EMU_NAME
+ ;;
+ *)
+ echo "set width 0
set height 0
set verbose off
source $ROOTDIR/erts/etc/unix/etp-commands
thread apply all bt
" > $cmdfile
- exec gdb --batch --command=$cmdfile $gdbcmd
+ exec gdb --batch --command=$cmdfile $EMU_NAME $core
+ ;;
+ esac
fi
diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in
index e2bf302cca..1a4f641301 100644
--- a/erts/etc/unix/etp-commands.in
+++ b/erts/etc/unix/etp-commands.in
@@ -52,7 +52,7 @@ document etp-help
% etpf-cons, etpf-boxed,
%
% Special commands for not really terms:
-% etp-mfa, etp-cp,
+% etp-mfa, etp-cp, etp-disasm,
% etp-msgq, etpf-msgq,
% etp-stacktrace, etp-stackdump, etpf-stackdump, etp-dictdump
% etp-process-info, etp-process-memory-info
@@ -1090,12 +1090,10 @@ document etp-mfa
%---------------------------------------------------------------------------
end
-
-
-define etp-cp-1
+define etp-cp-func-info-1
# Args: Eterm cp
#
-# Non-reentrant
+# Non-reentrant, takes cp, sets $etp_cp_p to MFA in func_info
#
set $etp_cp = (Eterm)($arg0)
set $etp_ranges = &r[(int)the_active_code_index]
@@ -1137,8 +1135,21 @@ define etp-cp-1
end
end
if $etp_cp_p
+ set $cp_cp_p_offset = ($etp_cp-((Eterm)($etp_cp_p-2)))
+ else
+ set $cp_cp_p_offset = 0
+ end
+end
+
+define etp-cp-1
+# Args: Eterm cp
+#
+# Non-reentrant
+#
+ etp-cp-func-info-1 $arg0
+ if $etp_cp_p
printf "#Cp"
- etp-mfa-1 ($etp_cp_p) ($etp_cp-((Eterm)($etp_cp_p-2)))
+ etp-mfa-1 $etp_cp_p $cp_cp_p_offset
else
if $etp_cp == beam_apply+1
printf "#Cp<terminate process normally>"
@@ -2478,11 +2489,58 @@ end
document etp-schedulers
%---------------------------------------------------------------------------
% etp-schedulers
-%
+%
% Print misc info about all schedulers
%---------------------------------------------------------------------------
end
+define etp-disasm-1
+ set $code_ptr = ((BeamInstr*)$arg0)
+ set $addr = *$code_ptr
+ set $i = 0
+ while $i < (sizeof(opc) / sizeof(OpEntry))
+ if $addr == beam_ops[$i]
+ printf "%s %d", opc[$i].name, opc[$i].sz
+ set $next_i = $code_ptr + opc[$i].sz
+ set $i += 4999
+ end
+ set $i++
+ end
+end
+
+define etp-disasm
+ etp-cp-func-info-1 $arg0
+ if $etp_cp_p == 0
+ printf "invalid argument"
+ else
+ etp-mfa-1 $etp_cp_p $cp_cp_p_offset
+ printf ": "
+ etp-disasm-1 $arg0
+ printf "\r\n"
+ while $next_i < ((BeamInstr*)$arg1)
+ set $prev_i = $next_i
+ etp-cp-func-info-1 $next_i
+ etp-mfa-1 $etp_cp_p $cp_cp_p_offset
+ printf ": "
+ etp-disasm-1 $next_i
+ if $prev_i == $next_i
+ # ptr did not advance, we are inside some strange opcode with argument
+ set $next_i++
+ printf "instr argument"
+ end
+ printf "\r\n"
+ end
+ end
+end
+
+document etp-disasm
+%---------------------------------------------------------------------------
+% etp-disasm StartI EndI
+%
+% Disassemble the code inbetween StartI and EndI
+%---------------------------------------------------------------------------
+end
+
define etp-migration-info
set $minfo = (ErtsMigrationPaths *) *((UWord *) &erts_migration_paths)
set $rq_ix = 0
diff --git a/erts/preloaded/ebin/init.beam b/erts/preloaded/ebin/init.beam
index 849273f746..74a0184818 100644
--- a/erts/preloaded/ebin/init.beam
+++ b/erts/preloaded/ebin/init.beam
Binary files differ
diff --git a/erts/preloaded/src/init.erl b/erts/preloaded/src/init.erl
index 962528f7ab..551ca4ea40 100644
--- a/erts/preloaded/src/init.erl
+++ b/erts/preloaded/src/init.erl
@@ -205,7 +205,7 @@ boot(BootArgs) ->
{Start0,Flags,Args} = parse_boot_args(BootArgs),
%% We don't get to profile parsing of BootArgs
- case get_flag(profile_boot, Flags, false) of
+ case b2a(get_flag(profile_boot, Flags, false)) of
false -> ok;
true -> debug_profile_start()
end,
@@ -782,7 +782,7 @@ do_boot(Init,Flags,Start) ->
(catch erlang:system_info({purify, "Node: " ++ atom_to_list(node())})),
start_em(Start),
- case get_flag(profile_boot,Flags,false) of
+ case b2a(get_flag(profile_boot,Flags,false)) of
false -> ok;
true ->
debug_profile_format_mfas(debug_profile_mfas()),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 11:53:01 +0000