hidden-break
A simple extension which defines a hidden breakpoint that collects the version
of the application and stores it for later use. This extension provides a
GDB function called version which can be used to retrieve the application
version.
This might be usefull if a GDB extension needs to support multiple versions of an application and needs to change behavior for older versions.
Run gdb and either use the hidden-break.gdb file or load the extension manually.
Run and break in break_here and query the application version with
call $version(). The result should be:
$ DEBUGINFOD_URLS= gdb -q --batch -x ./hidden-break.gdb -ex run -ex 'call $version()' ./hidden-break
$1 = "1.2.3"
If the inferior is stopped in main(), the version will no yet be available,
because the hidden breakpoint is set in init().