trace2: update docs to describe system/global config settings

diff --git a/trace2.c b/trace2.c
index 6dd51e6aa502b3f822d5eeffb340362a76ee18f4..6baa65cdf9aee65ff6ed5def968666800211e8e1 100644 (file)
--- a/trace2.c
+++ b/trace2.c
@@ -10,6 +10,7 @@
 #include "trace2/tr2_cmd_name.h"
 #include "trace2/tr2_dst.h"
 #include "trace2/tr2_sid.h"
+#include "trace2/tr2_sysenv.h"
 #include "trace2/tr2_tgt.h"
 #include "trace2/tr2_tls.h"
 
@@ -120,6 +121,7 @@ static void tr2main_atexit_handler(void)
        tr2_sid_release();
        tr2_cmd_name_release();
        tr2_cfg_free_patterns();
+       tr2_sysenv_release();
 
        trace2_enabled = 0;
 }
@@ -155,6 +157,8 @@ void trace2_initialize_fl(const char *file, int line)
        if (trace2_enabled)
                return;
 
+       tr2_sysenv_load();
+
        if (!tr2_tgt_want_builtins())
                return;
        trace2_enabled = 1;
@@ -182,13 +186,19 @@ void trace2_cmd_start_fl(const char *file, int line, const char **argv)
 {
        struct tr2_tgt *tgt_j;
        int j;
+       uint64_t us_now;
+       uint64_t us_elapsed_absolute;
 
        if (!trace2_enabled)
                return;
 
+       us_now = getnanotime() / 1000;
+       us_elapsed_absolute = tr2tls_absolute_elapsed(us_now);
+
        for_each_wanted_builtin (j, tgt_j)
                if (tgt_j->pfn_start_fl)
-                       tgt_j->pfn_start_fl(file, line, argv);
+                       tgt_j->pfn_start_fl(file, line, us_elapsed_absolute,
+                                           argv);
 }
 
 int trace2_cmd_exit_fl(const char *file, int line, int code)
@@ -203,6 +213,8 @@ int trace2_cmd_exit_fl(const char *file, int line, int code)
        if (!trace2_enabled)
                return code;
 
+       trace2_collect_process_info(TRACE2_PROCESS_INFO_EXIT);
+
        tr2main_exit_code = code;
 
        us_now = getnanotime() / 1000;