[PATCH 2/2] tests: check riscv_flush_icache syscall decoder

[Eugene Syromyatnikov]

* tests/riscv_flush_icache.c: New file.
* tests/.gitignore: Add riscv_flush_icache.
* tests/gen_tests.in: Likewise.
* tests/pure_executables.list: Likewise.
---
 tests/.gitignore            |  1 +
 tests/gen_tests.in          |  1 +
 tests/pure_executables.list |  1 +
 tests/riscv_flush_icache.c  | 93 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 96 insertions(+)
 create mode 100644 tests/riscv_flush_icache.c

diff --git a/tests/.gitignore b/tests/.gitignore
index 4c54589..2a95c6c 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -347,6 +347,7 @@ renameat
 renameat2
 request_key
 restart_syscall
+riscv_flush_icache
 rmdir
 rt_sigaction
 rt_sigpending
diff --git a/tests/gen_tests.in b/tests/gen_tests.in
index 93b1687..7ede93b 100644
--- a/tests/gen_tests.in
+++ b/tests/gen_tests.in
@@ -295,6 +295,7 @@ rename	-a35
 renameat
 renameat2
 request_key	-a33 -s12
+riscv_flush_icache	-a34
 rmdir	-a22
 rt_sigpending	-a20
 rt_sigprocmask
diff --git a/tests/pure_executables.list b/tests/pure_executables.list
index 8f5ff31..710d76e 100755
--- a/tests/pure_executables.list
+++ b/tests/pure_executables.list
@@ -287,6 +287,7 @@ rename
 renameat
 renameat2
 request_key
+riscv_flush_icache
 rmdir
 rt_sigaction
 rt_sigpending
diff --git a/tests/riscv_flush_icache.c b/tests/riscv_flush_icache.c
new file mode 100644
index 0000000..8aaeda5
--- /dev/null
+++ b/tests/riscv_flush_icache.c
@@ -0,0 +1,93 @@
+/*
+ * Check decoding of riscv_flush_icache syscall.
+ *
+ * Copyright (c) 2018 The strace developers.
+ * 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>
+
+#include "scno.h"
+
+#ifdef __NR_riscv_flush_icache
+
+# include <stdint.h>
+# include <stdio.h>
+# include <unistd.h>
+
+int main(void)
+{
+	static struct {
+		kernel_ulong_t addr;
+		const char *str;
+	} addrs[] = {
+		{ (kernel_ulong_t) (uintptr_t) ARG_STR(NULL) },
+		{ (kernel_ulong_t) 0xbadc0deddeadf157ULL,
+			sizeof(kernel_ulong_t) == 8 ? "0xbadc0deddeadf157" :
+			"0xdeadf157" },
+	};
+	static struct {
+		kernel_ulong_t val;
+		const char *str;
+	} flags[] = {
+		{ ARG_STR(0) },
+		{ 1, "SYS_RISCV_FLUSH_ICACHE_LOCAL" },
+		{ (kernel_ulong_t) 0xfacefeedfffffffeULL,
+			sizeof(kernel_ulong_t) == 8 ?
+			"0xfacefeedfffffffe /* SYS_RISCV_FLUSH_ICACHE_??? */" :
+			"0xfffffffe /* SYS_RISCV_FLUSH_ICACHE_??? */" },
+		{ (kernel_ulong_t) 0xfacefeedffffffffULL,
+			sizeof(kernel_ulong_t) == 8 ?
+			"SYS_RISCV_FLUSH_ICACHE_LOCAL|0xfacefeedfffffffe" :
+			"SYS_RISCV_FLUSH_ICACHE_LOCAL|0xfffffffe" },
+	};
+
+	for (size_t i = 0; i < ARRAY_SIZE(addrs); i++) {
+		for (size_t j = 0; j < ARRAY_SIZE(addrs); j++) {
+			for (size_t k = 0; k < ARRAY_SIZE(flags); k++) {
+				long rc = syscall(__NR_riscv_flush_icache,
+						  addrs[i].addr,
+						  addrs[j].addr,
+						  flags[k].val);
+
+				printf("riscv_flush_icache(%s, %s, %s) = %s\n",
+				       addrs[i].str, addrs[j].str, flags[k].str,
+				       sprintrc(rc));
+			}
+		}
+	}
+
+	puts("+++ exited with 0 +++");
+
+	return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_riscv_flush_icache");
+
+#endif
-- 
2.1.4