| machdep.c (276788) | machdep.c (285275) |
|---|---|
| 1/* 2 * Copyright (c) 1996, 1997 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that: (1) source code distributions 7 * retain the above copyright notice and this paragraph in its entirety, (2) 8 * distributions including binary code include the above copyright notice and --- 36 unchanged lines hidden (view full) --- 45 __attribute__((format(printf, 3, 4))) 46#endif /* __ATTRIBUTE___FORMAT_OK */ 47 ; 48#endif /* !defined(HAVE_SNPRINTF) */ 49#endif /* __osf__ */ 50 51#include "machdep.h" 52 | 1/* 2 * Copyright (c) 1996, 1997 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that: (1) source code distributions 7 * retain the above copyright notice and this paragraph in its entirety, (2) 8 * distributions including binary code include the above copyright notice and --- 36 unchanged lines hidden (view full) --- 45 __attribute__((format(printf, 3, 4))) 46#endif /* __ATTRIBUTE___FORMAT_OK */ 47 ; 48#endif /* !defined(HAVE_SNPRINTF) */ 49#endif /* __osf__ */ 50 51#include "machdep.h" 52 |
| 53/* 54 * On platforms where the CPU doesn't support unaligned loads, force 55 * unaligned accesses to abort with SIGBUS, rather than being fixed 56 * up (slowly) by the OS kernel; on those platforms, misaligned accesses 57 * are bugs, and we want tcpdump to crash so that the bugs are reported. 58 * 59 * The only OS on which this is necessary is DEC OSF/1^W^WDigital 60 * UNIX^W^WTru64 UNIX. 61 */ |
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| 53int 54abort_on_misalignment(char *ebuf _U_, size_t ebufsiz _U_) 55{ 56#ifdef __osf__ 57 static int buf[2] = { SSIN_UACPROC, UAC_SIGBUS }; 58 59 if (setsysinfo(SSI_NVPAIRS, (caddr_t)buf, 1, 0, 0) < 0) { 60 (void)snprintf(ebuf, ebufsiz, "setsysinfo: errno %d", errno); 61 return (-1); 62 } 63#endif 64 return (0); 65} | 62int 63abort_on_misalignment(char *ebuf _U_, size_t ebufsiz _U_) 64{ 65#ifdef __osf__ 66 static int buf[2] = { SSIN_UACPROC, UAC_SIGBUS }; 67 68 if (setsysinfo(SSI_NVPAIRS, (caddr_t)buf, 1, 0, 0) < 0) { 69 (void)snprintf(ebuf, ebufsiz, "setsysinfo: errno %d", errno); 70 return (-1); 71 } 72#endif 73 return (0); 74} |