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From 179063d63c4e1f49dd863db7ec5d70a3fa2a3713 Mon Sep 17 00:00:00 2001
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From: Eugene Syromyatnikov <evgsyr@gmail.com>
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Date: Mon, 11 Feb 2019 00:57:38 +0100
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Subject: [PATCH 21/27] ptrace_restart: do not print diagnostics when ptrace
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returns ESRCH
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After some discussion, it was decided that the situation
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when the tracee is gone does not worth reporting.
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* strace.c (ptrace_restart): Return early if ptrace returned ESRCH.
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Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1662936
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---
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strace.c | 4 +---
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1 file changed, 1 insertion(+), 3 deletions(-)
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diff --git a/strace.c b/strace.c
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index f2aa846..0745838 100644
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--- a/strace.c
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+++ b/strace.c
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@@ -353,7 +353,7 @@ ptrace_restart(const unsigned int op, struct tcb *const tcp, unsigned int sig)
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errno = 0;
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ptrace(op, tcp->pid, 0L, (unsigned long) sig);
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err = errno;
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- if (!err)
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+ if (!err || err == ESRCH)
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return 0;
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switch (op) {
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@@ -384,8 +384,6 @@ ptrace_restart(const unsigned int op, struct tcb *const tcp, unsigned int sig)
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tcp->pid, msg, strerror(err));
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line_ended();
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}
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- if (err == ESRCH)
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- return 0;
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errno = err;
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perror_msg("ptrace(PTRACE_%s,pid:%d,sig:%u)", msg, tcp->pid, sig);
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return -1;
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--
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2.1.4
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