commit f952eaceb089b691eba7c4e13686e742a8f26bf5 upstream. Intel PT uses IP compression based on the last IP. For decoding purposes, 'last IP' is not updated when a branch target has been suppressed, which is indicated by IPBytes == 0. IPBytes is stored in the packet 'count', so ensure never to set 'last_ip' when packet 'count' is zero. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1495786658-18063-7-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
---|---|---|
.. | ||
Build | ||
gen-insn-attr-x86.awk | ||
inat.c | ||
inat.h | ||
inat_types.h | ||
insn.c | ||
insn.h | ||
intel-pt-decoder.c | ||
intel-pt-decoder.h | ||
intel-pt-insn-decoder.c | ||
intel-pt-insn-decoder.h | ||
intel-pt-log.c | ||
intel-pt-log.h | ||
intel-pt-pkt-decoder.c | ||
intel-pt-pkt-decoder.h | ||
x86-opcode-map.txt |