/*
* Check decoding of remap_file_pages syscall.
*
- * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2016-2017 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2016-2018 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.
+ * SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
-#include <sys/syscall.h>
+#include <asm/unistd.h>
+#include "scno.h"
#ifdef __NR_remap_file_pages
# include <stdio.h>
-# include <sys/mman.h>
+# include <stdint.h>
# include <unistd.h>
+# include <linux/mman.h>
+
+static const char *errstr;
+
+static long
+k_remap_file_pages(const kernel_ulong_t addr,
+ const kernel_ulong_t size,
+ const kernel_ulong_t prot,
+ const kernel_ulong_t pgoff,
+ const kernel_ulong_t flags)
+{
+ const long rc = syscall(__NR_remap_file_pages,
+ addr, size, prot, pgoff, flags);
+ errstr = sprintrc(rc);
+ return rc;
+}
int
main(void)
{
- const unsigned long addr = (unsigned long) 0xfacefeeddeadbeef;
- const unsigned long size = (unsigned long) 0xdefaced1bad2f00d;
- const unsigned long prot = (unsigned long) 0xacedcafe00000000
- | PROT_READ|PROT_WRITE|PROT_EXEC;
- const unsigned long pgoff = (unsigned long) 0xcaf3babebad4deed;
- const unsigned long flags = (unsigned long) 0xbadc0ded00000000
- | MAP_PRIVATE|MAP_ANONYMOUS;
-
- long rc = syscall(__NR_remap_file_pages, addr, size, prot, pgoff, flags);
- printf("remap_file_pages(%#lx, %lu, %s, %lu, %s) = %ld %s (%m)\n",
- addr, size, "PROT_READ|PROT_WRITE|PROT_EXEC", pgoff,
- "MAP_PRIVATE|MAP_ANONYMOUS", rc, errno2name());
+ kernel_ulong_t addr = (kernel_ulong_t) 0xfacefeeddeadbeefULL;
+ kernel_ulong_t size = (kernel_ulong_t) 0xdefaced1bad2f00dULL;
+ kernel_ulong_t prot = PROT_READ|PROT_WRITE|PROT_EXEC;
+ kernel_ulong_t pgoff = (kernel_ulong_t) 0xcaf3babebad4deedULL;
+ kernel_ulong_t flags = MAP_PRIVATE|MAP_ANONYMOUS;
+# define prot1_str "PROT_READ|PROT_WRITE|PROT_EXEC"
+# define flags1_str "MAP_PRIVATE|MAP_ANONYMOUS"
+
+ k_remap_file_pages(addr, size, prot, pgoff, flags);
+# if XLAT_RAW
+ printf("remap_file_pages(%#jx, %ju, %#jx, %ju, %#jx) = %s\n",
+ (uintmax_t) addr, (uintmax_t) size, (uintmax_t) prot,
+ (uintmax_t) pgoff, (uintmax_t) flags, errstr);
+# elif XLAT_VERBOSE
+ printf("remap_file_pages(%#jx, %ju, %#jx /* %s */, %ju, %#jx /* %s */)"
+ " = %s\n",
+ (uintmax_t) addr, (uintmax_t) size, (uintmax_t) prot, prot1_str,
+ (uintmax_t) pgoff, (uintmax_t) flags,
+ flags1_str, errstr);
+# else /* XLAT_ABBREV */
+ printf("remap_file_pages(%#jx, %ju, %s, %ju, %s) = %s\n",
+ (uintmax_t) addr, (uintmax_t) size, prot1_str,
+ (uintmax_t) pgoff, flags1_str, errstr);
+# endif
+
+#ifdef MAP_HUGETLB
+# ifndef MAP_HUGE_2MB
+# ifndef MAP_HUGE_SHIFT
+# define MAP_HUGE_SHIFT 26
+# endif
+# define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT)
+# endif /* !MAP_HUGE_2MB */
+ addr = (kernel_ulong_t) 0xfacefeeddeadf00dULL;
+ size = (kernel_ulong_t) 0xdefaced1bad2beefULL;
+ prot = (kernel_ulong_t) 0xdefaced00000000ULL | PROT_NONE;
+ flags = MAP_TYPE | MAP_FIXED | MAP_NORESERVE | MAP_HUGETLB | MAP_HUGE_2MB;
+
+ k_remap_file_pages(addr, size, prot, pgoff, flags);
+
+/*
+ * HP PA-RISC is the only architecture that has MAP_TYPE defined to 0x3, which
+ * is also used for MAP_SHARED_VALIDATE since Linux commit v4.15-rc1~71^2^2~23.
+ */
+# ifdef __hppa__
+# define MAP_TYPE_str "MAP_SHARED_VALIDATE"
+# else
+# define MAP_TYPE_str "0xf /* MAP_??? */"
+# endif
+# define flags2_str \
+ MAP_TYPE_str "|MAP_FIXED|MAP_NORESERVE|MAP_HUGETLB|21<<MAP_HUGE_SHIFT"
+
+# if XLAT_RAW
+ printf("remap_file_pages(%#jx, %ju, %#jx, %ju, %#jx) = %s\n",
+ (uintmax_t) addr, (uintmax_t) size, (uintmax_t) prot,
+ (uintmax_t) pgoff, (uintmax_t) flags, errstr);
+# elif XLAT_VERBOSE
+ printf("remap_file_pages(%#jx, %ju, %#jx /* %s */, %ju, %#jx /* %s */)"
+ " = %s\n",
+ (uintmax_t) addr, (uintmax_t) size, (uintmax_t) prot,
+ prot == PROT_NONE ? "PROT_NONE" : "PROT_???",
+ (uintmax_t) pgoff, (uintmax_t) flags, flags2_str, errstr);
+# else /* XLAT_ABBREV */
+ printf("remap_file_pages(%#jx, %ju, %s, %ju, %s) = %s\n",
+ (uintmax_t) addr, (uintmax_t) size,
+ prot == PROT_NONE ? "PROT_NONE" :
+ "0xdefaced00000000 /* PROT_??? */",
+ (uintmax_t) pgoff, flags2_str, errstr);
+# endif
+#endif /* MAP_HUGETLB */
puts("+++ exited with 0 +++");
return 0;
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