Merge branch 'pan/dtrace' into maint

* pan/dtrace: (22 commits)
  Use distinct function-entry probes for local and global calls
  Correct calculation of stack depth in call/return probes
  Add probes for all kind of calls
  Don't try to "clean up" generated fun names
  erl_process.c: Fix probe for process exit
  Remove code causing dialyzer warning from prim_file
  Add documentation for dyntrace and system_info changes
  Update slogan and add system_info for dynamic trace
  Update README's for dtrace and systemtap
  Rename dyntrace BIFs to more suiting names
  If VM probes are not enabled, short-circuit calls to probe BIFs
  beam_makeops: Add a simple preprocessor
  Ifdef all dynamic trace code
  Move dtrace erlang code and NIF into runtime_tools
  Correct some errors in the user tag spreading
  Change to more specific configure options for dtrace
  Add user tag spreading functionality to VM and use in file
  Update dtrace for changes in R15
  Add DTrace support for OS X, Solaris, and Linux (via SystemTap), 4/4
  Add DTrace support for OS X, Solaris, and Linux (via SystemTap), 3/4
  ...

OTP-10017

1 files changed, 9 insertions, 0 deletions

diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c
index 908ba755ed..1481f66b55 100644
--- a/erts/emulator/beam/erl_node_tables.c
+++ b/erts/emulator/beam/erl_node_tables.c
@@ -27,6 +27,7 @@
 #include "big.h"
 #include "error.h"
 #include "erl_thr_progress.h"
+#include "dtrace-wrapper.h"
 
 Hash erts_dist_table;
 Hash erts_node_table;
@@ -42,6 +43,8 @@ Sint erts_no_of_not_connected_dist_entries;
 
 DistEntry *erts_this_dist_entry;
 ErlNode *erts_this_node;
+char erts_this_node_sysname_BUFFER[256],
+    *erts_this_node_sysname = "uninitialized yet";
 
 static Uint node_entries;
 static Uint dist_entries;
@@ -702,6 +705,9 @@ erts_set_this_node(Eterm sysname, Uint creation)
     (void) hash_erase(&erts_node_table, (void *) erts_this_node);
     erts_this_node->sysname = sysname;
     erts_this_node->creation = creation;
+    erts_this_node_sysname = erts_this_node_sysname_BUFFER;
+    erts_snprintf(erts_this_node_sysname, sizeof(erts_this_node_sysname),
+                  "%T", sysname);
     (void) hash_put(&erts_node_table, (void *) erts_this_node);
 
     erts_smp_rwmtx_rwunlock(&erts_dist_table_rwmtx);
@@ -789,6 +795,9 @@ void erts_init_node_tables(void)
     erts_this_node->sysname			= am_Noname;
     erts_this_node->creation			= 0;
     erts_this_node->dist_entry			= erts_this_dist_entry;
+    erts_this_node_sysname = erts_this_node_sysname_BUFFER;
+    erts_snprintf(erts_this_node_sysname, sizeof(erts_this_node_sysname),
+                  "%T", erts_this_node->sysname);
 
     (void) hash_put(&erts_node_table, (void *) erts_this_node);