[Tarantool-patches] [PATCH luajit v3 2/4] sysprof: remove `split by vmstate` option

[Maxim Kokryashkin]

This option is unneeded and was never used
by anybody. There is no reason to maintain it
in the scope of refactoring.

Needed for tarantool/tarantool#8700
---
 tools/sysprof.lua          |  9 +--------
 tools/sysprof/collapse.lua | 10 +++-------
 2 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/tools/sysprof.lua b/tools/sysprof.lua
index 1afab195..22c724e9 100644
--- a/tools/sysprof.lua
+++ b/tools/sysprof.lua
@@ -6,8 +6,6 @@ local misc = require "sysprof.collapse"
 local stdout, stderr = io.stdout, io.stderr
 local match, gmatch = string.match, string.gmatch
 
-local split_by_vmstate = false
-
 -- Program options.
 local opt_map = {}
 
@@ -23,15 +21,10 @@ luajit-parse-sysprof [options] sysprof.bin
 Supported options are:
 
   --help                            Show this help and exit
-  --split                           Split callchains by vmstate
 ]]
   os.exit(0)
 end
 
-function opt_map.split()
-  split_by_vmstate = true
-end
-
 -- Print error and exit with error status.
 local function opterror(...)
   stderr:write("luajit-parse-sysprof.lua: ERROR: ", ...)
@@ -103,7 +96,7 @@ local function dump(inputfile)
   local symbols = symtab.parse(reader)
 
   local events = sysprof.parse(reader, symbols)
-  local calltree = misc.collapse(events, symbols, split_by_vmstate)
+  local calltree = misc.collapse(events, symbols)
 
   traverse_calltree(calltree, '')
 
diff --git a/tools/sysprof/collapse.lua b/tools/sysprof/collapse.lua
index 3d83d5ea..ac5269ea 100755
--- a/tools/sysprof/collapse.lua
+++ b/tools/sysprof/collapse.lua
@@ -75,7 +75,7 @@ end
 
 -- merge lua and host callchains into one callchain representing
 -- transfer of control
-local function merge(event, symbols, sep_vmst)
+local function merge(event, symbols)
   local cc = {}
 
   for _,h_fr in pairs(event.host.callchain) do
@@ -98,19 +98,15 @@ local function merge(event, symbols, sep_vmst)
 
   end
 
-  if sep_vmst == true then
-    table.insert(cc, { name = VMST_NAMES[event.lua.vmstate] })
-  end
-
   return cc
 end
 
 -- Collapse all the events into call tree
-function M.collapse(events, symbols, sep_vmst)
+function M.collapse(events, symbols)
   local root = new_node('root', false)
 
   for _,ev in pairs(events) do
-    local callchain = merge(ev, symbols, sep_vmst)
+    local callchain = merge(ev, symbols)
     local curr_node = root
     for i=#callchain,1,-1 do
       curr_node = insert(callchain[i].name, curr_node, false)
-- 
2.41.0