On 11 Mar 2008, at 23:19, James McIlree wrote:
>
>
>> I was looking at mod_trace
>> (http://prefetch.net/projects/apache_modtrace/index.html
>> ) and playing with getting it to compile on OS X.
>>
>> When building for x86_64 with -arch x86_64 we get bad instructions
>> generated:
>>
>> gcc -o foo -arch x86_64 foo.c
>> /var/folders/rV/rV1x2DafFr0R6tGG+1bbk++++TM/-Tmp-//ccnykQ1o.s:
>> 11:bad register name `%%esi)'
>>
>
> The DTRACE_PROBE# macros are not supported on OS X. That is why
> you're running into issues.
If they're not supported shouldn't I at least get a warning. Any
pointers to the right way to do things?
I note that the root cause is actually a bad define in
/usr/include/mach/i386/sdt_isa.h:
#ifdef __x86_64__
#define DTRACE_NOPS \
"nop" "\n\t" \
"leal 0(%%esi), %%esi" "\n\t"
Paul
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