[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.4-301-g0746c98

[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.4-301-g0746c98

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- Log -----------------------------------------------------------------
commit 0746c987640896c855bf2b63a166c8051c8f7654
Author: Josh Stone <jistone@redhat.com>
Date:   Fri May 6 16:31:08 2011 -0700

    uprobes: impedance match insn tables with test_bit()
    
    The kernel's test_bit expects its bitmap to be const volatile, but we
    had ours as simply const.  On Fedora 15 with gcc 4.6, compiling uprobes
    gave a few warnings like this:
    
        arch/x86/include/asm/bitops.h:319:2: warning: use of memory input
        without lvalue in asm operand 1 is deprecated [enabled by default]
    
    That line is the asm statement in variable_test_bit().
    
    The symptom noticed was that handle_riprel_insn was reading need_modrm:0
    for opcode 0x89, when our table says it should be 1.  Who knows what
    other havok ensued...
    
    When our instruction tables are set const volatile to match test_bit(),
    the warning goes away, and need_modrm is now computed correctly.

-----------------------------------------------------------------------

Summary of changes:
 runtime/uprobes/uprobes_i386.c   |    4 ++--
 runtime/uprobes/uprobes_x86.c    |   10 +++++-----
 runtime/uprobes/uprobes_x86_64.c |   10 +++++-----
 runtime/uprobes2/uprobes_x86.c   |   10 +++++-----
 4 files changed, 17 insertions(+), 17 deletions(-)


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