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
10 * 1. Redistributions of source code must retain the above copyright
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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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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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;
74 char msg[] = "SIGSEGV i current test: ";
76 fd = open("/dev/stdout", O_WRONLY, 0600);
78 ret = write(fd, msg, sizeof(msg) - 1);
80 ret = write(fd, testname, strlen(testname));
82 ret = write(fd, "\n", 1);
90 errx(1, "test %s run recursively on %s", name, testname); \
91 testname = strdup(name); \
92 if (testname == NULL) \
96 ROKEN_LIB_FUNCTION void * ROKEN_LIB_CALL
97 rk_test_mem_alloc(enum rk_test_mem_type type, const char *name,
98 void *buf, size_t size)
105 p = malloc(size + 2);
112 p[map.size-1] = 0xff;
113 map.data_start = p + 1;
117 size_t pagesize = getpagesize();
128 fd = open ("/dev/zero", O_RDONLY);
130 err (1, "open /dev/zero");
133 flags |= MAP_PRIVATE;
135 map.size = size + pagesize - (size % pagesize) + pagesize * 2;
137 p = (unsigned char *)mmap(0, map.size, PROT_READ | PROT_WRITE,
139 if (p == (unsigned char *)MAP_FAILED)
144 ret = mprotect ((void *)p, pagesize, 0);
148 ret = mprotect (p + map.size - pagesize, pagesize, 0);
154 map.data_start = p + map.size - pagesize - size;
157 map.data_start = p + pagesize;
163 #ifdef HAVE_SIGACTION
164 sigemptyset (&sa.sa_mask);
167 sa.sa_flags |= SA_RESETHAND;
169 sa.sa_handler = segv_handler;
170 sigaction (SIGSEGV, &sa, &osa);
172 osigh = signal(SIGSEGV, segv_handler);
175 map.data_size = size;
177 memcpy(map.data_start, buf, size);
178 return map.data_start;
181 ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
182 rk_test_mem_free(const char *map_name)
185 unsigned char *p = map.start;
187 if (testname == NULL)
188 errx(1, "test_mem_free call on no free");
191 errx(1, "%s: %s underrun %x\n", testname, map_name, p[0]);
192 if (p[map.size-1] != 0xff)
193 errx(1, "%s: %s overrun %x\n", testname, map_name, p[map.size - 1]);
198 if (testname == NULL)
199 errx(1, "test_mem_free call on no free");
201 ret = munmap (map.start, map.size);
210 #ifdef HAVE_SIGACTION
211 sigaction (SIGSEGV, &osa, NULL);
213 signal (SIGSEGV, osigh);