2 * Copyright (c) 1999 - 2004 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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36 #ifdef HAVE_SYS_MMAN_H
46 /* #undef HAVE_MMAP */
53 enum rk_test_mem_type type;
59 struct sigaction sa, osa;
73 char msg[] = "SIGSEGV i current test: ";
75 fd = open("/dev/stdout", O_WRONLY, 0600);
77 (void)write(fd, msg, sizeof(msg) - 1);
78 (void)write(fd, testname, strlen(testname));
79 (void)write(fd, "\n", 1);
87 errx(1, "test %s run recursively on %s", name, testname); \
88 testname = strdup(name); \
89 if (testname == NULL) \
93 ROKEN_LIB_FUNCTION void * ROKEN_LIB_CALL
94 rk_test_mem_alloc(enum rk_test_mem_type type, const char *name,
95 void *buf, size_t size)
102 p = malloc(size + 2);
109 p[map.size-1] = 0xff;
110 map.data_start = p + 1;
114 size_t pagesize = getpagesize();
125 fd = open ("/dev/zero", O_RDONLY);
127 err (1, "open /dev/zero");
130 flags |= MAP_PRIVATE;
132 map.size = size + pagesize - (size % pagesize) + pagesize * 2;
134 p = (unsigned char *)mmap(0, map.size, PROT_READ | PROT_WRITE,
136 if (p == (unsigned char *)MAP_FAILED)
141 ret = mprotect ((void *)p, pagesize, 0);
145 ret = mprotect (p + map.size - pagesize, pagesize, 0);
151 map.data_start = p + map.size - pagesize - size;
154 map.data_start = p + pagesize;
160 #ifdef HAVE_SIGACTION
161 sigemptyset (&sa.sa_mask);
164 sa.sa_flags |= SA_RESETHAND;
166 sa.sa_handler = segv_handler;
167 sigaction (SIGSEGV, &sa, &osa);
169 osigh = signal(SIGSEGV, segv_handler);
172 map.data_size = size;
174 memcpy(map.data_start, buf, size);
175 return map.data_start;
178 ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
179 rk_test_mem_free(const char *map_name)
182 unsigned char *p = map.start;
184 if (testname == NULL)
185 errx(1, "test_mem_free call on no free");
188 errx(1, "%s: %s underrun %x\n", testname, map_name, p[0]);
189 if (p[map.size-1] != 0xff)
190 errx(1, "%s: %s overrun %x\n", testname, map_name, p[map.size - 1]);
195 if (testname == NULL)
196 errx(1, "test_mem_free call on no free");
198 ret = munmap (map.start, map.size);
207 #ifdef HAVE_SIGACTION
208 sigaction (SIGSEGV, &osa, NULL);
210 signal (SIGSEGV, osigh);