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Relicense files with kind permission from
Stefan Hajnoczi <stefanha@redhat.com>
alongside the contributors who have already granted such relicensing
permission.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Suggested-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Enhance the information collected by the function recorder to include
the call site and entry/exit counts. This allows fnrec.pl to produce
a call tree such as:
step (from core/getkey.c:46 = 0x17e90) {
ref_increment (from core/process.c:93 = 0x73ec) { }
net_step (from core/process.c:96 = 0x73f1) {
net_poll (from net/netdevice.c:741 = 0xbce6) {
netdev_poll (from net/netdevice.c:700 = 0xbc58) { }
netdev_rx_dequeue (from net/netdevice.c:709 = 0xbc65) { }
}
}
ref_decrement (from core/process.c:96 = 0x73f9) { }
}
Note that inlined functions are reported, confusingly, as extra calls
to the *containing* function. Minimise this confusion by adding the
attribute "no_instrument_function" to all functions declared as
inline. (Static functions that have been inlined autonomously by gcc
will still be problematic, but these are far fewer in number.)
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Access to the gpxe.org and etherboot.org domains and associated
resources has been revoked by the registrant of the domain. Work
around this problem by renaming project from gPXE to iPXE, and
updating URLs to match.
Also update README, LOG and COPYRIGHTS to remove obsolete information.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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The function recorder is a crash and hang debugging tool. It logs each
function call into a memory buffer while gPXE runs. After the machine
is reset, and if the contents of memory have not been overwritten, gPXE
will detect the memory buffer and print out its contents.
This allows developers to see a trace of the last functions called
before a crash or hang. The util/fnrec.sh script can be used to convert
the function addresses back into symbol names.
To build with fnrec:
make FNREC=1
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Marty Connor <mdc@etherboot.org>
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