2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
6 * Copyright (c) 2000 PocketPenguins Inc. Linux for Hitachi SuperH
7 * port by Greg Banks <gbanks@pocketpenguins.com>
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 static unsigned long pagesize;
43 pagesize = sysconf(_SC_PAGESIZE);
49 printaddr(tcp->u_arg[0]);
51 return RVAL_DECODED | RVAL_HEX;
54 #include "xlat/mmap_prot.h"
55 #include "xlat/mmap_flags.h"
58 print_mmap(struct tcb *tcp, kernel_ureg_t *u_arg, unsigned long long offset)
60 const kernel_ureg_t addr = u_arg[0];
61 const kernel_ureg_t len = u_arg[1];
62 const kernel_ureg_t prot = u_arg[2];
63 const kernel_ureg_t flags = u_arg[3];
64 const int fd = u_arg[4];
67 tprintf(", %lu, ", len);
68 printflags64(mmap_prot, prot, "PROT_???");
71 printxval64(mmap_flags, flags & MAP_TYPE, "MAP_???");
72 addflags(mmap_flags, flags & ~MAP_TYPE);
74 printflags64(mmap_flags, flags, "MAP_???");
78 tprintf(", %#llx", offset);
81 /* Syscall name<->function correspondence is messed up on many arches.
83 * i386 has __NR_mmap == 90, and it is "old mmap", and
84 * also it has __NR_mmap2 == 192, which is a "new mmap with page offsets".
85 * But x86_64 has just one __NR_mmap == 9, a "new mmap with byte offsets".
89 #if defined AARCH64 || defined ARM \
90 || defined I386 || defined X86_64 || defined X32 \
92 || defined S390 || defined S390X
93 /* Params are pointed to by u_arg[0], offset is in bytes */
96 kernel_ureg_t u_arg[6];
97 # ifndef current_klongsize
98 /* We are here only in a 32-bit personality. */
99 unsigned int narrow_arg[6];
100 if (umove_or_printaddr(tcp, tcp->u_arg[0], &narrow_arg))
101 return RVAL_DECODED | RVAL_HEX;
103 for (i = 0; i < 6; i++)
104 u_arg[i] = narrow_arg[i];
106 if (umove_or_printaddr(tcp, tcp->u_arg[0], &u_arg))
107 return RVAL_DECODED | RVAL_HEX;
109 print_mmap(tcp, u_arg, u_arg[5]);
111 return RVAL_DECODED | RVAL_HEX;
113 #endif /* old_mmap architectures */
116 /* Params are pointed to by u_arg[0], offset is in pages */
117 SYS_FUNC(old_mmap_pgoff)
119 kernel_ureg_t u_arg[5];
121 unsigned int narrow_arg[6];
122 unsigned long long offset;
123 if (umove_or_printaddr(tcp, tcp->u_arg[0], &narrow_arg))
124 return RVAL_DECODED | RVAL_HEX;
125 for (i = 0; i < 5; i++)
126 u_arg[i] = narrow_arg[i];
127 offset = narrow_arg[5];
128 offset *= get_pagesize();
129 print_mmap(tcp, u_arg, offset);
131 return RVAL_DECODED | RVAL_HEX;
135 /* Params are passed directly, offset is in bytes */
138 unsigned long long offset =
139 #if HAVE_STRUCT_TCB_EXT_ARG
140 tcp->ext_arg[5]; /* try test/x32_mmap.c */
144 /* Example of kernel-side handling of this variety of mmap:
145 * arch/x86/kernel/sys_x86_64.c::SYSCALL_DEFINE6(mmap, ...) calls
146 * sys_mmap_pgoff(..., off >> PAGE_SHIFT); i.e. off is in bytes,
147 * since the above code converts off to pages.
149 print_mmap(tcp, tcp->u_arg, offset);
151 return RVAL_DECODED | RVAL_HEX;
154 /* Params are passed directly, offset is in pages */
157 /* Try test/mmap_offset_decode.c */
158 unsigned long long offset;
159 offset = tcp->u_arg[5];
160 offset *= get_pagesize();
161 print_mmap(tcp, tcp->u_arg, offset);
163 return RVAL_DECODED | RVAL_HEX;
166 /* Params are passed directly, offset is in 4k units */
169 unsigned long long offset;
170 offset = tcp->u_arg[5];
172 print_mmap(tcp, tcp->u_arg, offset);
174 return RVAL_DECODED | RVAL_HEX;
179 printaddr(tcp->u_arg[0]);
180 tprintf(", %lu", tcp->u_arg[1]);
186 do_mprotect(struct tcb *tcp, bool has_pkey)
188 printaddr_klu(getarg_klu(tcp, 0));
189 tprintf(", %" PRI_klu ", ", getarg_klu(tcp, 1));
190 printflags64(mmap_prot, getarg_klu(tcp, 2), "PROT_???");
193 tprintf(", %d", (int) tcp->u_arg[3]);
200 return do_mprotect(tcp, false);
203 SYS_FUNC(pkey_mprotect)
205 return do_mprotect(tcp, true);
208 #include "xlat/mremap_flags.h"
212 printaddr(tcp->u_arg[0]);
213 tprintf(", %lu, %lu, ", tcp->u_arg[1], tcp->u_arg[2]);
214 printflags64(mremap_flags, tcp->u_arg[3], "MREMAP_???");
216 if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
217 (MREMAP_MAYMOVE | MREMAP_FIXED)) {
219 printaddr(tcp->u_arg[4]);
222 return RVAL_DECODED | RVAL_HEX;
225 #include "xlat/madvise_cmds.h"
229 printaddr(tcp->u_arg[0]);
230 tprintf(", %lu, ", tcp->u_arg[1]);
231 printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
236 #include "xlat/mlockall_flags.h"
240 printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
245 #include "xlat/mctl_sync.h"
250 printaddr(tcp->u_arg[0]);
252 tprintf(", %lu, ", tcp->u_arg[1]);
254 printflags(mctl_sync, tcp->u_arg[2], "MS_???");
259 #include "xlat/mlock_flags.h"
263 printaddr(tcp->u_arg[0]);
264 tprintf(", %lu, ", tcp->u_arg[1]);
265 printflags(mlock_flags, tcp->u_arg[2], "MLOCK_???");
273 printaddr(tcp->u_arg[0]);
274 tprintf(", %lu, ", tcp->u_arg[1]);
276 const unsigned long page_size = get_pagesize();
277 const unsigned long page_mask = page_size - 1;
278 unsigned long len = tcp->u_arg[1];
279 unsigned char *vec = NULL;
281 len = len / page_size + (len & page_mask ? 1 : 0);
282 if (syserror(tcp) || !verbose(tcp) ||
283 !tcp->u_arg[2] || !(vec = malloc(len)) ||
284 umoven(tcp, tcp->u_arg[2], len, vec) < 0)
285 printaddr(tcp->u_arg[2]);
289 for (i = 0; i < len; i++) {
292 if (abbrev(tcp) && i >= max_strlen) {
296 tprints((vec[i] & 1) ? "1" : "0");
305 #if defined ALPHA || defined IA64 || defined M68K \
306 || defined SPARC || defined SPARC64
307 SYS_FUNC(getpagesize)
309 return RVAL_DECODED | RVAL_HEX;
313 SYS_FUNC(remap_file_pages)
315 const kernel_ureg_t addr = tcp->u_arg[0];
316 const kernel_ureg_t size = tcp->u_arg[1];
317 const kernel_ureg_t prot = tcp->u_arg[2];
318 const kernel_ureg_t pgoff = tcp->u_arg[3];
319 const kernel_ureg_t flags = tcp->u_arg[4];
322 tprintf(", %lu, ", size);
323 printflags64(mmap_prot, prot, "PROT_???");
324 tprintf(", %lu, ", pgoff);
326 printxval64(mmap_flags, flags & MAP_TYPE, "MAP_???");
327 addflags(mmap_flags, flags & ~MAP_TYPE);
329 printflags64(mmap_flags, flags, "MAP_???");
337 print_protmap_entry(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
339 tprintf("%#08x", * (unsigned int *) elem_buf);
344 SYS_FUNC(subpage_prot)
346 kernel_ureg_t addr = tcp->u_arg[0];
347 kernel_ureg_t len = tcp->u_arg[1];
348 kernel_ureg_t nmemb = len >> 16;
349 kernel_ureg_t map = tcp->u_arg[2];
352 tprintf(", %lu, ", len);
355 print_array(tcp, map, nmemb, &entry, sizeof(entry),
356 umoven_or_printaddr, print_protmap_entry, 0);