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authorDmitry V. Levin <ldv@strace.io>2021-02-03 08:00:00 +0000
committerDmitry V. Levin <ldv@strace.io>2021-02-03 08:00:00 +0000
commitecb3ed78107c851f71696df6730a15afff91ed3d (patch)
tree0b3d2b083040fc9b08d129f80d027ff41b995059 /src/pidfd_getfd.c
parentc47943de06204a269e16f732e7c9c71d4284b23f (diff)
downloadstrace-ecb3ed78107c851f71696df6730a15afff91ed3d.tar.gz
Move source files into src subdirectory
* src/Makefile.am: New file. * src/.gitignore: Likewise. * scno.am: Move into src subdirectory. * scno.head: Likewise. * strace-graph: Likewise. * strace-log-merge: Likewise. * linux/: Likewise. * types/: Likewise. * xlat/: Likewise. * *.awk: Likewise. * *.c: Likewise. * *.h: Likewise. * *.sh: Likewise. * .gitignore: Update. * Makefile.am: Update. * bootstrap: Update. * configure.ac: Update. * debian/rules: Update. * debian/strace-udeb.install: Update. * debian/strace.examples: Update. * debian/strace.install: Update. * debian/strace64.install: Update. * m4/gen_bpf_attr_m4.sh: Update. * m4/mpers.m4: Update. * tests/Makefile.am: Update. * tests/init.sh: Update. * tests/legacy_syscall_info.test: Update. * tests/strace-log-merge-error.test: Update. * tests/strace-log-merge-suffix.test: Update.
Diffstat (limited to 'src/pidfd_getfd.c')
-rw-r--r--src/pidfd_getfd.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/pidfd_getfd.c b/src/pidfd_getfd.c
new file mode 100644
index 000000000..dc263e27b
--- /dev/null
+++ b/src/pidfd_getfd.c
@@ -0,0 +1,31 @@
+/*
+ * pidfd_getfd() syscall decoder.
+ *
+ * Copyright (c) 2020 The strace developers.
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+#include "defs.h"
+#include "number_set.h"
+
+SYS_FUNC(pidfd_getfd)
+{
+ int pidfd = (int) tcp->u_arg[0];
+ int targetfd = (int) tcp->u_arg[1];
+ unsigned int flags = (unsigned int) tcp->u_arg[2];
+
+ printfd(tcp, pidfd);
+ tprints(", ");
+
+ pid_t target_pid = pidfd_get_pid(tcp->pid, pidfd);
+ if (target_pid > 0)
+ printfd_pid(tcp, target_pid, targetfd);
+ else
+ tprintf("%d", targetfd);
+
+ tprintf(", %#x", flags);
+
+ return RVAL_DECODED | RVAL_FD;
+}