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From 215fc84bac0037ac5b2047940f97ecc97f0860b9 Mon Sep 17 00:00:00 2001
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From: Marko Myllynen <myllynen@redhat.com>
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Date: Fri, 5 Oct 2018 16:47:29 +0300
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Subject: [PATCH 1/2] uflow: convert bytes to str
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Python 3 fix, similar to commit 99d1468 and commit 4e4c9e0 for ucalls.
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Closes #1996.
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---
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tools/lib/uflow.py | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/tools/lib/uflow.py b/tools/lib/uflow.py
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index fb306e31d..fdbcfc332 100755
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--- a/tools/lib/uflow.py
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+++ b/tools/lib/uflow.py
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@@ -196,7 +196,9 @@ def print_event(cpu, data, size):
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direction = "<- " if event.depth & (1 << 63) else "-> "
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print("%-3d %-6d %-6d %-8.3f %-40s" % (cpu, event.pid >> 32,
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event.pid & 0xFFFFFFFF, time.time() - start_ts,
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- (" " * (depth - 1)) + direction + event.clazz + "." + event.method))
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+ (" " * (depth - 1)) + direction + \
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+ event.clazz.decode('utf-8', 'replace') + "." + \
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+ event.method.decode('utf-8', 'replace')))
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bpf["calls"].open_perf_buffer(print_event)
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while 1:
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From 1c7e2a8f3fb02d4516fccc410272324fff250be9 Mon Sep 17 00:00:00 2001
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From: Marko Myllynen <myllynen@redhat.com>
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Date: Fri, 5 Oct 2018 17:16:13 +0300
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Subject: [PATCH 2/2] uflow: drop unused timestamp field
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---
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tools/lib/uflow.py | 3 ---
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1 file changed, 3 deletions(-)
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diff --git a/tools/lib/uflow.py b/tools/lib/uflow.py
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index fdbcfc332..f2a458d7b 100755
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--- a/tools/lib/uflow.py
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+++ b/tools/lib/uflow.py
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@@ -49,7 +49,6 @@
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struct call_t {
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u64 depth; // first bit is direction (0 entry, 1 return)
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u64 pid; // (tgid << 32) + pid from bpf_get_current...
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- u64 timestamp; // ns
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char clazz[80];
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char method[80];
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};
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@@ -89,7 +88,6 @@
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FILTER_METHOD
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data.pid = bpf_get_current_pid_tgid();
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- data.timestamp = bpf_ktime_get_ns();
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depth = entry.lookup_or_init(&data.pid, &zero);
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data.depth = DEPTH;
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UPDATE
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@@ -183,7 +181,6 @@ class CallEvent(ct.Structure):
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_fields_ = [
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("depth", ct.c_ulonglong),
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("pid", ct.c_ulonglong),
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- ("timestamp", ct.c_ulonglong),
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("clazz", ct.c_char * 80),
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("method", ct.c_char * 80)
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]
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