strace/SOURCES/0021-ptrace_restart-do-not-...

42 lines
1.2 KiB
Diff

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