svn commit: r211221 - head/usr.sbin/acpi/acpidump

John Baldwin jhb at
Thu Aug 12 15:35:06 UTC 2010

Dag-Erling Smørgrav wrote:
> Takanori Watanabe <takawata at> writes:
>> -	printf("\tClass %d Base Address 0x%jx Length %llu\n\n",
>> +	printf("\tClass %d Base Address 0x%jx Length %" PRIu64 "\n\n",
>>  	    tcpa->platform_class, paddr, len);
> This is just as wrong as the previous attempt.
> 1) platform_class is not an int.
> 2) paddr is not a uintmax_t.
> 3) so far, we've avoided using the PRI macros.
> Slightly better:
> 	printf("\tClass %u Base Address 0x%jx Length %ju\n\n",
>   	    (unsigned int)tcpa->platform_class, (uintmax_t)paddr, (uintmax_t)len);
> but it would probably be easier to define paddr and len as unsigned long
> long instead of the misspelled u_int64_t, and use %llx and %llu.

Depends.  If the table defines a field to be a 64-bit integer, it is 
better to use an explicitly-64-bit integer type such as uint64_t rather 
than assuming that 'long long' is 64-bit.  Other ACPI table definitions 
all use fixed-size types like uint32_t and uint64_t since the tables are 
defined as fixed-size fields, not as 'long' and 'int'.  Using %j with 
uintmax_t casts is the solution used for other 64-bit fields in ACPI tables.

John Baldwin

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