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_ulong_t *u_arg, unsigned long long offset)
60 const kernel_ulong_t addr = u_arg[0];
61 const kernel_ulong_t len = u_arg[1];
62 const kernel_ulong_t prot = u_arg[2];
63 const kernel_ulong_t flags = u_arg[3];
64 const int fd = u_arg[4];
67 tprintf(", %" PRI_klu ", ", 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_ulong_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_ulong_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 /* Example of kernel-side handling of this variety of mmap:
139 * arch/x86/kernel/sys_x86_64.c::SYSCALL_DEFINE6(mmap, ...) calls
140 * sys_mmap_pgoff(..., off >> PAGE_SHIFT); i.e. off is in bytes,
141 * since the above code converts off to pages.
143 print_mmap(tcp, tcp->u_arg, tcp->u_arg[5]);
145 return RVAL_DECODED | RVAL_HEX;
148 /* Params are passed directly, offset is in pages */
151 /* Try test/mmap_offset_decode.c */
152 unsigned long long offset;
153 offset = tcp->u_arg[5];
154 offset *= get_pagesize();
155 print_mmap(tcp, tcp->u_arg, offset);
157 return RVAL_DECODED | RVAL_HEX;
160 /* Params are passed directly, offset is in 4k units */
163 unsigned long long offset;
164 offset = tcp->u_arg[5];
166 print_mmap(tcp, tcp->u_arg, offset);
168 return RVAL_DECODED | RVAL_HEX;
173 printaddr(tcp->u_arg[0]);
174 tprintf(", %" PRI_klu, tcp->u_arg[1]);
180 do_mprotect(struct tcb *tcp, bool has_pkey)
182 printaddr(tcp->u_arg[0]);
183 tprintf(", %" PRI_klu ", ", tcp->u_arg[1]);
184 printflags64(mmap_prot, tcp->u_arg[2], "PROT_???");
187 tprintf(", %d", (int) tcp->u_arg[3]);
194 return do_mprotect(tcp, false);
197 SYS_FUNC(pkey_mprotect)
199 return do_mprotect(tcp, true);
202 #include "xlat/mremap_flags.h"
206 printaddr(tcp->u_arg[0]);
207 tprintf(", %" PRI_klu ", %" PRI_klu ", ", tcp->u_arg[1], tcp->u_arg[2]);
208 printflags64(mremap_flags, tcp->u_arg[3], "MREMAP_???");
210 if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
211 (MREMAP_MAYMOVE | MREMAP_FIXED)) {
213 printaddr(tcp->u_arg[4]);
216 return RVAL_DECODED | RVAL_HEX;
219 #include "xlat/madvise_cmds.h"
223 printaddr(tcp->u_arg[0]);
224 tprintf(", %" PRI_klu ", ", tcp->u_arg[1]);
225 printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
230 #include "xlat/mlockall_flags.h"
234 printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
239 #include "xlat/mctl_sync.h"
244 printaddr(tcp->u_arg[0]);
246 tprintf(", %" PRI_klu ", ", tcp->u_arg[1]);
248 printflags(mctl_sync, tcp->u_arg[2], "MS_???");
253 #include "xlat/mlock_flags.h"
257 printaddr(tcp->u_arg[0]);
258 tprintf(", %" PRI_klu ", ", tcp->u_arg[1]);
259 printflags(mlock_flags, tcp->u_arg[2], "MLOCK_???");
267 printaddr(tcp->u_arg[0]);
268 tprintf(", %" PRI_klu ", ", tcp->u_arg[1]);
270 const unsigned long page_size = get_pagesize();
271 const unsigned long page_mask = page_size - 1;
272 unsigned long len = tcp->u_arg[1];
273 unsigned char *vec = NULL;
275 len = len / page_size + (len & page_mask ? 1 : 0);
276 if (syserror(tcp) || !verbose(tcp) ||
277 !tcp->u_arg[2] || !(vec = malloc(len)) ||
278 umoven(tcp, tcp->u_arg[2], len, vec) < 0)
279 printaddr(tcp->u_arg[2]);
283 for (i = 0; i < len; i++) {
286 if (abbrev(tcp) && i >= max_strlen) {
290 tprints((vec[i] & 1) ? "1" : "0");
299 #if defined ALPHA || defined IA64 || defined M68K \
300 || defined SPARC || defined SPARC64
301 SYS_FUNC(getpagesize)
303 return RVAL_DECODED | RVAL_HEX;
307 SYS_FUNC(remap_file_pages)
309 const kernel_ulong_t addr = tcp->u_arg[0];
310 const kernel_ulong_t size = tcp->u_arg[1];
311 const kernel_ulong_t prot = tcp->u_arg[2];
312 const kernel_ulong_t pgoff = tcp->u_arg[3];
313 const kernel_ulong_t flags = tcp->u_arg[4];
316 tprintf(", %" PRI_klu ", ", size);
317 printflags64(mmap_prot, prot, "PROT_???");
318 tprintf(", %" PRI_klu ", ", pgoff);
320 printxval64(mmap_flags, flags & MAP_TYPE, "MAP_???");
321 addflags(mmap_flags, flags & ~MAP_TYPE);
323 printflags64(mmap_flags, flags, "MAP_???");
331 print_protmap_entry(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
333 tprintf("%#08x", * (unsigned int *) elem_buf);
338 SYS_FUNC(subpage_prot)
340 kernel_ulong_t addr = tcp->u_arg[0];
341 kernel_ulong_t len = tcp->u_arg[1];
342 kernel_ulong_t nmemb = len >> 16;
343 kernel_ulong_t map = tcp->u_arg[2];
346 tprintf(", %" PRI_klu ", ", len);
349 print_array(tcp, map, nmemb, &entry, sizeof(entry),
350 umoven_or_printaddr, print_protmap_entry, 0);