Merge branch 'lukas/erts/tracing/misc_fixes/OTP-13503'

* lukas/erts/tracing/misc_fixes/OTP-13503:
  erts: Add test for new procs trace with spawn_link
  kernel: Remove seq_trace event order dep in tc
  erts: Add tests for set on link tracing
  erts: Expand trace tests for refc binaries
  erts: Remove erl_tracer with invalid state
  erts: Remove some dead code
  erts: Fix broken doc link to erl_tracer

Conflicts:
	erts/emulator/beam/erl_trace.c

1 files changed, 4 insertions, 0 deletions

diff --git a/erts/emulator/test/port_trace_SUITE_data/echo_drv.c b/erts/emulator/test/port_trace_SUITE_data/echo_drv.c
index b5728bc170..b5ae9389b4 100644
--- a/erts/emulator/test/port_trace_SUITE_data/echo_drv.c
+++ b/erts/emulator/test/port_trace_SUITE_data/echo_drv.c
@@ -217,6 +217,8 @@ static ErlDrvSSizeT echo_drv_control(ErlDrvData drv_data,
 				     char *buf, ErlDrvSizeT len,
 				     char **rbuf, ErlDrvSizeT rlen)
 {
+    if ((len - 1) > rlen)
+        *rbuf = driver_alloc(len - 1);
     memcpy(*rbuf, buf+1, len-1);
     return len-1;
 }
@@ -232,6 +234,8 @@ static ErlDrvSSizeT echo_drv_call(ErlDrvData drv_data,
                                   char **rbuf, ErlDrvSizeT rlen,
                                   unsigned int *flags)
 {
+    if ((len - command) > rlen)
+        *rbuf = driver_alloc(len - command);
     memcpy(*rbuf, buf+command, len-command);
     return len-command;
 }