Date: Sat, 10 May 2003 17:25:50 -0700 (PDT) From: Marcel Moolenaar <marcel@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 30928 for review Message-ID: <200305110025.h4B0PooJ022281@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=30928 Change 30928 by marcel@marcel_nfs on 2003/05/10 17:24:54 Use bcopy and copyin/copyout to read and write bytes. This avoids a page fault caused by the debugger trying to read or write from/to a bogus address. Keep the jmp_buf for now. Affected files ... .. //depot/projects/ia64_epc/sys/ia64/ia64/db_interface.c#9 edit Differences ... ==== //depot/projects/ia64_epc/sys/ia64/ia64/db_interface.c#9 (text+ko) ==== @@ -403,13 +403,13 @@ register size_t size; register char *data; { - register char *src; db_nofault = &db_jmpbuf; - src = (char *)addr; - while (size-- > 0) - *data++ = *src++; + if (addr < VM_MAX_ADDRESS) + copyin((char *)addr, data, size); + else + bcopy((char *)addr, data, size); db_nofault = 0; } @@ -423,13 +423,13 @@ register size_t size; register char *data; { - register char *dst; db_nofault = &db_jmpbuf; - dst = (char *)addr; - while (size-- > 0) - *dst++ = *data++; + if (addr < VM_MAX_ADDRESS) + copyout(data, (char *)addr, size); + else + bcopy(data, (char *)addr, size); db_nofault = 0; }help
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