From: Eugene Syromyatnikov <evgsyr@gmail.com>
Date: Wed, 21 Sep 2016 21:21:01 +0000 (+0300)
Subject: tests: check decoding of getcpu syscall
X-Git-Tag: v4.14~34
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ec3761429e3e0c474bd52ca47f19d7fe503d94e8;p=strace

tests: check decoding of getcpu syscall

* tests/getcpu.c: New file.
* tests/getcpu.test: New test.
* tests/.gitignore: Add getcpu.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add getcpu.test.
---

diff --git a/tests/.gitignore b/tests/.gitignore
index 833799a8..471e492e 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -70,6 +70,7 @@ ftruncate64
 futex
 futimesat
 get_mempolicy
+getcpu
 getcwd
 getdents
 getdents64
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 5a69a553..acedc0ae 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -129,6 +129,7 @@ check_PROGRAMS = \
 	futex \
 	futimesat \
 	get_mempolicy \
+	getcpu \
 	getcwd \
 	getdents \
 	getdents64 \
@@ -467,6 +468,7 @@ DECODER_TESTS = \
 	futex.test \
 	futimesat.test \
 	get_mempolicy.test \
+	getcpu.test \
 	getcwd.test \
 	getdents.test \
 	getdents64.test \
diff --git a/tests/getcpu.c b/tests/getcpu.c
new file mode 100644
index 00000000..baef1bb4
--- /dev/null
+++ b/tests/getcpu.c
@@ -0,0 +1,76 @@
+/*
+ * Check decoding of getcpu syscall.
+ *
+ * Copyright (c) 2016 Eugene Syromiatnikov <evgsyr@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+
+#include <asm/unistd.h>
+
+#ifdef __NR_getcpu
+
+# include <stdio.h>
+# include <unistd.h>
+
+int
+main(void)
+{
+	static const unsigned *bogus_cpu =
+		(unsigned *) (unsigned long) 0xfffffeedfffffaceULL;
+	static const unsigned *bogus_node =
+		(unsigned *) (unsigned long) 0xfffffca7ffffc0deULL;
+	static const unsigned *bogus_tcache =
+		(unsigned *) (unsigned long) 0xffffda7affffdeadULL;
+
+	long res;
+	unsigned *cpu = tail_alloc(sizeof(*cpu));
+	unsigned *node = tail_alloc(sizeof(*node));
+	long * tcache = tail_alloc(128);
+
+	res = syscall(__NR_getcpu, NULL, NULL, NULL);
+	printf("getcpu(NULL, NULL, NULL) = %s\n", sprintrc(res));
+
+	res = syscall(__NR_getcpu, bogus_cpu, bogus_node, bogus_tcache);
+	printf("getcpu(%p, %p, %p) = %s\n",
+	       bogus_cpu, bogus_node, bogus_tcache, sprintrc(res));
+
+	res = syscall(__NR_getcpu, cpu, node, tcache);
+	if (res != 0)
+		perror_msg_and_skip("getcpu");
+
+	printf("getcpu([%u], [%u], %p) = 0\n", *cpu, *node, tcache);
+
+	puts("+++ exited with 0 +++");
+
+	return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_getcpu");
+
+#endif
diff --git a/tests/getcpu.test b/tests/getcpu.test
new file mode 100755
index 00000000..fe212658
--- /dev/null
+++ b/tests/getcpu.test
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Check decoding of getcpu syscall.
+
+. "${srcdir=.}/init.sh"
+run_strace_match_diff -a25