From 2df2a6bfc5e6706c2bc09ec82b95e6ab69bbc662 Mon Sep 17 00:00:00 2001
From: Peace Lee <iipeace5@gmail.com>
Date: Wed, 4 Oct 2023 00:09:48 +0900
Subject: [PATCH] readelf: Add .gnu_debuglink family sections

Signed-off-by: Peace Lee <iipeace5@gmail.com>
---
 guider/guider.py | 78 ++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 62 insertions(+), 16 deletions(-)

diff --git a/guider/guider.py b/guider/guider.py
index f6acd0e1..7e98d024 100755
--- a/guider/guider.py
+++ b/guider/guider.py
@@ -7,7 +7,7 @@
 __credits__ = "Peace Lee"
 __license__ = "GPLv2"
 __version__ = "3.9.8"
-__revision__ = "231002"
+__revision__ = "231003"
 __maintainer__ = "Peace Lee"
 __email__ = "iipeace5@gmail.com"
 __repository__ = "https://github.com/iipeace/guider"
@@ -85708,9 +85708,10 @@ def getCallStatsFile(logFile, verb=False):
             elif context is None:
                 continue
 
-            # split line #
+            # split a line #
             sline = line.split("|")
 
+            # last call #
             if len(sline) == 2:
                 per = sline[0].strip()
                 if not per[0].isdigit():
@@ -85743,8 +85744,8 @@ def getCallStatsFile(logFile, verb=False):
                     mainCnt = long(last[1].strip().replace(",", "")[:-1])
                     main = stack
 
+            # backtrace #
             elif line.lstrip().startswith("<-"):
-                # parse backtraces #
                 last = line.split("<Cnt: ")
                 if len(last) == 2:
                     stack = "%s %s" % (stack, last[0].strip())
@@ -85755,12 +85756,11 @@ def getCallStatsFile(logFile, verb=False):
                 else:
                     stack = "%s %s" % (stack, last[0].strip())
 
-            else:
-                # no backtrace call #
-                if not onlybt and stack:
-                    samples.setdefault(stack, 0)
-                    samples[stack] += mainCnt
-                    stack = ""
+            # no backtrace #
+            elif not onlybt and stack:
+                samples.setdefault(stack, 0)
+                samples[stack] += mainCnt
+                stack = ""
 
         return samples, title
 
@@ -93306,7 +93306,7 @@ def _printSystemStat():
         # print histo stats for elapsed time #
         if elapsedTable:
             elapsedTable = UtilMgr.convList2Histo(elapsedTable, mult=1000000)
-            UtilMgr.printHist(elapsedTable, "elapsed", "us")
+            UtilMgr.printHist(elapsedTable, "Elapsed", "us")
 
         # print file table #
         if fileTable:
@@ -93351,9 +93351,11 @@ def _printSystemStat():
                 except:
                     break
 
+                addVal = " <Cnt: %s>" % convert(value["cnt"])
+
                 SysMgr.printPipe(
                     "{0:>7} | {1:<144}{2:1}".format(
-                        "%.1f%%" % per, filename, suffix
+                        "%.1f%%" % per, filename + addVal, suffix
                     )
                 )
 
@@ -98934,6 +98936,8 @@ def _printStrSect(sh_name, strtab):
         e_shdbgdata = -1
         e_shdbgframe = -1
         e_shdbginfo = -1
+        e_shdbglink = -1
+        e_shdbgaltlink = -1
         e_shdbgloc = -1
         e_shdbgranges = -1
         e_shdbgline = -1
@@ -99167,6 +99171,10 @@ def _printStrSect(sh_name, strtab):
                 e_shehframehdr = i
             elif symbol == ".gnu_debugdata":
                 e_shdbgdata = i
+            elif symbol == ".gnu_debuglink":
+                e_shdbglink = i
+            elif symbol == ".gnu_debugaltlink":
+                e_shdbgaltlink = i
             elif symbol.startswith(".note."):
                 e_shnotelist.setdefault(symbol, i)
             elif stype == "GNU_versym":
@@ -102981,6 +102989,44 @@ def _addEntryOldState(cmd, args, isExtended=False):
         except:
             SysMgr.printErr("failed to parse .gnu_debugdata", True)
 
+        # print gnu_debuglink section #
+        for secName, secIdx in (
+            (".gnu_debuglink", e_shdbglink),
+            (".gnu_debugaltlink", e_shdbgaltlink),
+        ):
+            try:
+                if secIdx < 0 or not secName in self.attr["sectionHeader"]:
+                    continue
+
+                vals = self.attr["sectionHeader"][secName]
+                doffset = vals["offset"]
+                dsize = vals["size"]
+
+                # read section #
+                ddata = SysMgr.readFile(path, dsize, byte=True, offset=doffset)
+
+                # get path and checksum #
+                dpath = ddata.split(b"\x00")[0].decode("utf-8")
+
+                if printable:
+                    printer("\n[%s Section]\n%s" % (secName, twoLineLoc))
+                    printer("Debug info file: %s" % dpath)
+                    if secName == ".gnu_debuglink":
+                        dchecksum = ddata[len(dpath.encode("utf-8")) + 1 :][
+                            -4:
+                        ]
+                        printer("CRC value: 0x%s" % dchecksum[::-1].hex())
+                    elif secName == ".gnu_debugaltlink":
+                        dbuildid = UtilMgr.convStr2Bytes(
+                            ddata[len(dpath.encode("utf-8")) + 1 :]
+                        )
+                        printer("Build-ID: 0x%s" % dbuildid)
+                    printer(oneLineLoc)
+            except SystemExit:
+                sys.exit(0)
+            except:
+                SysMgr.printErr("failed to parse %s" % secName, True)
+
         # check dynamic section #
         if e_shdynamic < 0:
             return None
@@ -103082,7 +103128,7 @@ def _addEntryOldState(cmd, args, isExtended=False):
             if nrPrint == 0 and isTarget:
                 printer("    None")
 
-            printer("%s\n\n\n" % oneLineLoc)
+            printer("%s\n" % oneLineLoc)
 
 
 class TaskAnalyzer(object):
@@ -113516,28 +113562,28 @@ def printResourceUsage(self):
             runtimeStats = UtilMgr.convList2Histo(
                 self.statData["runtime"], mult=1000000
             )
-            UtilMgr.printHist(runtimeStats, "sched_runtime", "us")
+            UtilMgr.printHist(runtimeStats, "Sched_runtime", "us")
 
         # print histo stats for preemption #
         if "prttime" in self.statData:
             prttimeStats = UtilMgr.convList2Histo(
                 self.statData["prttime"], mult=1000000
             )
-            UtilMgr.printHist(prttimeStats, "sched_preempted", "us")
+            UtilMgr.printHist(prttimeStats, "Sched_preempted", "us")
 
         # print histo stats for latency #
         if "schedlat" in self.statData:
             latStats = UtilMgr.convList2Histo(
                 self.statData["schedlat"], mult=1000000
             )
-            UtilMgr.printHist(latStats, "sched_latency", "us")
+            UtilMgr.printHist(latStats, "Sched_latency", "us")
 
         # print histo stats for block #
         if "schedblock" in self.statData:
             latStats = UtilMgr.convList2Histo(
                 self.statData["schedblock"], mult=1000000
             )
-            UtilMgr.printHist(latStats, "sched_block", "us")
+            UtilMgr.printHist(latStats, "Sched_block", "us")
 
         # prepare to draw graph #
         if not SysMgr.isRecordMode() and SysMgr.graphEnable: