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From 460a71ab24ad511318342077ac9ef57df543375f Mon Sep 17 00:00:00 2001
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From: Jerome Marchand <jmarchan@redhat.com>
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Date: Thu, 16 Sep 2021 14:44:23 +0200
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Subject: [PATCH] threadsnoop: look for pthread_create in libc too
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Since glibc 2.34, pthread features are integrated in libc directly.
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Look for pthread_create there too when it is not found in libpthread.
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Fixes #3623
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---
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tools/threadsnoop.py | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/tools/threadsnoop.py b/tools/threadsnoop.py
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index 04c5e680..471b0c3c 100755
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--- a/tools/threadsnoop.py
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+++ b/tools/threadsnoop.py
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@@ -38,7 +38,12 @@ void do_entry(struct pt_regs *ctx) {
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events.perf_submit(ctx, &data, sizeof(data));
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};
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""")
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-b.attach_uprobe(name="pthread", sym="pthread_create", fn_name="do_entry")
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+
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+# Since version 2.34, pthread features are integrated in libc
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+try:
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+ b.attach_uprobe(name="pthread", sym="pthread_create", fn_name="do_entry")
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+except Exception:
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+ b.attach_uprobe(name="c", sym="pthread_create", fn_name="do_entry")
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print("%-10s %-6s %-16s %s" % ("TIME(ms)", "PID", "COMM", "FUNC"))
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--
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2.31.1
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