Re: gdb can break on __init function ?

From: Keith Owens (kaos@ocs.com.au)
Date: Thu Apr 13 2000 - 08:50:38 EST


On Wed, 12 Apr 2000 14:03:43 -0700,
Jun Sun <jsun@mvista.com> wrote:
>I am using gdb/kdb to debug kernel through a serial line. It mostly
>works. However I notice that I cannot break on any functions declared
>as "__init". If I remove that declaration, everything is fine.

__init code and data is collected in one place by the linker. After
the kernel has finished initialization, the entire __init code and data
is *freed* and reused as kmalloc space. Setting breakpoints in code
that will be removed and reused for random data is a bad idea.

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