gdb.info: GDB/MI Stream Records

Go forward to GDB/MI Out-of-band Records
Go backward to GDB/MI Result Records
Go up to GDB/MI Output Records
Go to the top op gdb

GDB/MI Stream Records

GDB internally maintains a number of output streams: the console, the
target, and the log.  The output intended for each of these streams is
funneled through the GDB/MI interface using "stream records".
   Each stream record begins with a unique "prefix character" which
identifies its stream (*note GDB/MI Output Syntax: GDB/MI Output
Syntax.).  In addition to the prefix, each stream record contains a
`STRING-OUTPUT'.  This is either raw text (with an implicit new line)
or a quoted C string (which does not contain an implicit newline).
`"~" STRING-OUTPUT'
     The console output stream contains text that should be displayed
     in the CLI console window.  It contains the textual responses to
     CLI commands.
`"@" STRING-OUTPUT'
     The target output stream contains any textual output from the
     running target.
`"&" STRING-OUTPUT'
     The log stream contains debugging messages being produced by GDB's
     internals.