[Bug tapsets/11707] New: on ppc, all nd_syscall probes fail

[dsmith at redhat dot com]

On ppc, simple tests using the nd_syscall tapset fail in two ways:

1) At compile time, I get this:

# stap -ve 'probe nd_syscall.open { println(filename) }' -c 'cat /dev/null'
Pass 1: parsed user script and 65 library script(s) using
29184virt/25408res/5440shr kb, in 300usr/0sys/305real ms.
Pass 2: analyzed script: 4 probe(s), 13 function(s), 16 embed(s), 2
global(s) using 29568virt/26112res/5696shr kb, in 20usr/0sys/23real ms.
Pass 3: translated to C into
"/tmp/stapUkWTmX/stap_016c23e1525f681253ac83abbcf7ed8b_18164.c" using
29568virt/26368res/5888shr kb, in 10usr/10sys/9real ms.
cc1: warnings being treated as errors
/tmp/stapUkWTmX/stap_016c23e1525f681253ac83abbcf7ed8b_18164.c: In
function ‘function__stp_get_register_by_offset’:
/tmp/stapUkWTmX/stap_016c23e1525f681253ac83abbcf7ed8b_18164.c:1483:
warning: format ‘%lld’ expects type ‘long long int’, but argument 4 has
type ‘int64_t’
make[1]: ***
[/tmp/stapUkWTmX/stap_016c23e1525f681253ac83abbcf7ed8b_18164.o] Error 1
make: *** [_module_/tmp/stapUkWTmX] Error 2
Pass 4: compiled C into "stap_016c23e1525f681253ac83abbcf7ed8b_18164.ko"
in 2130usr/220sys/2367real ms.
Pass 4: compilation failed.  Try again with another '--vp 0001' option.

2) After fixing the above, I get wrong values for arguments.  For example:

# stap -e 'probe nd_syscall.open { println(argstr) }' -c 'cat /dev/null'
<unknown>, O_RDONLY|O_DIRECT|O_EXCL|O_LARGEFILE|O_NOFOLLOW|O_NONBLOCK|O_SYNC|O_TRUNC
<unknown>, O_RDONLY|O_DIRECT|O_EXCL|O_LARGEFILE|O_NOFOLLOW|O_NONBLOCK|O_SYNC|O_TRUNC
<unknown>, O_RDONLY|O_DIRECT|O_EXCL|O_LARGEFILE|O_NOFOLLOW|O_NONBLOCK|O_SYNC|O_TRUNC
<unknown>, O_RDONLY|O_DIRECT|O_EXCL|O_LARGEFILE|O_NOFOLLOW|O_NONBLOCK|O_SYNC|O_TRUNC

-- 
           Summary: on ppc, all nd_syscall probes fail
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tapsets
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: dsmith at redhat dot com
  GCC host triplet: ppc


http://sourceware.org/bugzilla/show_bug.cgi?id=11707

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