https://bugs.kde.org/show_bug.cgi?id=504177
Bug ID: 504177
Summary: FILE DESCRIPTORS banner shows when closing some
inherited file descriptors
Classification: Developer tools
Product: valgrind
Version: 3.25.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: m...@klomp.org
Target Milestone: ---
With valgrind 3.25.0 the following shows the FILE DESCRIPTORS banner, when it
shouldn't
$ valgrind -q --track-fds=yes cat /dev/null
==1937149== FILE DESCRIPTORS: 1 open (3 inherited) at exit.
==1937149==
cat (coreutils) closes stdout and stderr before exit. The still open file
descriptor is stdin.
Note that it still says 3 inherited.
The problem is that the check whether or not to show the banner is:
(fd_count - inherited == 0)
The fix seems to be to check whether the inherited file descriptors are already
closed:
diff --git a/coregrind/m_syswrap/syswrap-generic.c
b/coregrind/m_syswrap/syswrap-generic.c
index 82a682a5ce55..81c8fc028d88 100644
--- a/coregrind/m_syswrap/syswrap-generic.c
+++ b/coregrind/m_syswrap/syswrap-generic.c
@@ -987,7 +987,7 @@ void VG_(show_open_fds) (const HChar* when)
int inherited = 0;
for (i = allocated_fds; i; i = i->next) {
- if (i->where == NULL)
+ if (i->where == NULL && !i->fd_closed)
inherited++;
}
--
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