21.1.3 Simple examples of GDB/MI interaction
This subsection presents several simple examples of interaction using the GDB/MI interface. In these examples,
Evaluate expression
Here is an example to evaluate an expression:
<- ^done,value="5" <- (gdb)
and later:
<- *stop,reason="stop",address="0x123",source="a.c:123" <- (gdb)
Simple CLI command
Here is an example of a simple CLI command being passed through GDB/MI and on to the CLI.
<- &"print 1+2\n" <- ~"$1 = 3\n" <- ^done
<- (gdb)
A bad command
Here is what happens if you pass a bad command:
<- ^error,msg="Undefined MI command: rubbish" <- (gdb)
21.2 GDB/MI compatibility with CLI
To help users get familiar with GDB CLI, GDB/MI accepts existing CLI commands. As specified by the syntax, such commands can be directly entered into the GDB/MI interface and GDB will respond.
This mechanism is provided as an aid to developers of GDB/MI clients and not as a reliable interface into the CLI. Since the command is being interpreted in an environment that assumes GDB/MI behaviour, the exact output of such commands is likely to end up being an
310 The GDB/MI Interface