Differences

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--- gdb [2017/10/24 17:22]
dblume
+++ gdb [2021/05/21 00:04] (current)
@@ Line 1: / Line 1: @@
 ====== gdb ======
+===== Example code with a deadlock =====
+Build your target with debug symbols. For example, with [[http://git.dlma.com/testcode.git/|the testcode project]], make with the target "debug"
+  make debug
+If the deadlock was compiled in, then run it like so:
+  product/testcode &
+Then you can run gdb and attach to the process in one of the following ways.
+  $ gdb -p <pid-of-testcode>
+  $ gdb product/testcode <pid-of-testcode>
+  $ gdb
+  (gdb) attach <pid-of-testcode>
+===== Tips =====
 Show all the backtraces:
@@ Line 12: / Line 34: @@
   (gdb) t a a bt -3   # thread apply all backtrace top three frames
-==== Detecting a Deadlock ====
+===== Detecting a Deadlock =====
 Get high level info on the threads: