kapstok / Post-mortem-debugging (public) (License: MIT) (since 2018-11-16) (hash sha1)
Simple sample on how post mortem debugging in C(++) works.
Clone URLs: https://rocketgit.com/user/kapstok/Post-mortem-debugging ssh://rocketgit@ssh.rocketgit.com/user/kapstok/Post-mortem-debugging git://git.rocketgit.com/user/kapstok/Post-mortem-debugging
master
List of commits:
Subject Hash Author Date (UTC)
Update README.md d950c53af3a3b3bed374cee734f7d81b64fa16ad Jan Allersma 2018-11-16 19:15:47
Dump to log file. 8aced5b3cbe9fd245b68168de57f55f2b0cd68e9 Jan Allersma 2018-05-30 12:08:53
Add compile info at runtime error. Determine appropiate code for architecture when compiling. 41baa10ac827df8efb3040c2b82197053d6b43c0 Jan Allersma 2018-05-22 12:15:18
Remove redundant variables and header includes. fb31483b36a5f9e249d8fa88f0c3ff66b1fce6cd Jan Allersma 2018-05-22 11:40:35
Initial commit. 86c80da5a6a677f1686e50996b61fd51632259ba Jan Allersma 2018-05-18 13:12:38
Commit d950c53af3a3b3bed374cee734f7d81b64fa16ad - Update README.md
Author: Jan Allersma
Author date (UTC): 2018-11-16 19:15
Committer name: Jan Allersma
Committer date (UTC): 2018-11-16 19:17
Parent(s): 8aced5b3cbe9fd245b68168de57f55f2b0cd68e9
Signing key:
Tree: 1ad0ac24566dc4b59849837590edf038ba899448
File Lines added Lines deleted
README.md 6 6
File README.md changed (mode: 100644) (index 939a821..8006ce0)
... ... Running `./exe` results in this output:
18 18
19 19 ``` ```
20 20 Error 11 at (nil): Error 11 at (nil):
21 Called from 0x40233f
21 Called from 0x400a48
22 22 Compiled at: May 30 2018 09:24:41 Compiled at: May 30 2018 09:24:41
23 23 Aborted (geheugendump gemaakt) Aborted (geheugendump gemaakt)
24 24 ``` ```
 
... ... Possible output would be:
35 35
36 36 ``` ```
37 37 May 30 09:38:14 localhost postmortem-debugging[14671]: Error 11 at (nil): May 30 09:38:14 localhost postmortem-debugging[14671]: Error 11 at (nil):
38 May 30 09:38:14 localhost postmortem-debugging[14671]: Called from 0x40233f.
38 May 30 09:38:14 localhost postmortem-debugging[14671]: Called from 0x400a48.
39 39 May 30 09:38:14 localhost postmortem-debugging[14671]: Compiled at: May 30 2018 09:24:41 May 30 09:38:14 localhost postmortem-debugging[14671]: Compiled at: May 30 2018 09:24:41
40 40 ``` ```
41 41
 
... ... $ gdb ./dbgexe
48 48 Then you need to use the information from the log file. Execute this code in `gdb`: Then you need to use the information from the log file. Execute this code in `gdb`:
49 49
50 50 ``` ```
51 l *0x40233f
51 l *0x400a48
52 52 ``` ```
53 53
54 > Use the output from running ./exe ('Called from 0x40233f').
54 > Use the output from running ./exe ('Called from 0x400a48').
55 55
56 As `gdb` states, the error was caused at line 57:
56 As `gdb` states, the error was caused at line 71:
57 57
58 58 ``` ```
59 0x40233f is in main() (main.cpp:71).
59 0x400a48 is in main() (main.cpp:71).
60 60 ``` ```
Hints:
Before first commit, do not forget to setup your git environment:
git config --global user.name "your_name_here"
git config --global user.email "your@email_here"

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