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perf intel-pt/bts: Tidy instruction buffer size usage

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Tidy instruction buffer size usage in preparation for copying the
instruction bytes onto samples.

The instruction buffer is presently used for debugging, so rename its
size macro from INTEL_PT_INSN_DBG_BUF_SZ to INTEL_PT_INSN_BUF_SZ, and
use it everywhere.

Note that the maximum instruction size is 15 which is a less efficient size
to copy than 16, which is why a separate buffer size is used.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1475847747-30994-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2016-10-07 16:42:25 +03:00
committed by Arnaldo Carvalho de Melo
parent e9c848928a
commit 32f98aab75
5 changed files with 16 additions and 23 deletions
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4
tools/perf/util/intel-pt-decoder/intel-pt-log.c
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@@ -119,8 +119,8 @@ void __intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip)
if (intel_pt_log_open())
return;
if (len > INTEL_PT_INSN_DBG_BUF_SZ)
len = INTEL_PT_INSN_DBG_BUF_SZ;
if (len > INTEL_PT_INSN_BUF_SZ)
len = INTEL_PT_INSN_BUF_SZ;
intel_pt_print_data(intel_pt_insn->buf, len, ip, 8);
if (intel_pt_insn_desc(intel_pt_insn, desc, INTEL_PT_INSN_DESC_MAX) > 0)
fprintf(f, "%s\n", desc);