[Bug translator/16633] odd 'stap -L' behavior

[dsmith at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=16633

--- Comment #1 from David Smith <dsmith at redhat dot com> ---
After seeing something similar with the following command on
3.14.0-0.rc4.git3.1.fc21.x86_64:

====
# stap -L 'kernel.function("__handle_mm_fault").*'
kernel.function("__handle_mm_fault@mm/memory.c:3696").inline $flags:unsigned
int $address:long unsigned int $vma:struct vm_area_struct* $mm:struct
mm_struct*
kernel.function("do_huge_pmd_anonymous_page@mm/huge_memory.c:786") $mm:struct
mm_struct* $vma:struct vm_area_struct* $address:long unsigned int $pmd:pmd_t*
$flags:unsigned int
kernel.function("do_huge_pmd_numa_page@mm/huge_memory.c:1295") $mm:struct
mm_struct* $vma:struct vm_area_struct* $addr:long unsigned int $pmd:pmd_t
$pmdp:pmd_t*
kernel.function("do_huge_pmd_wp_page@mm/huge_memory.c:1122") $mm:struct
mm_struct* $vma:struct vm_area_struct* $address:long unsigned int $pmd:pmd_t*
$orig_pmd:pmd_t
kernel.function("huge_pmd_set_accessed@mm/huge_memory.c:921") $mm:struct
mm_struct* $vma:struct vm_area_struct* $address:long unsigned int $pmd:pmd_t*
$orig_pmd:pmd_t $dirty:int
kernel.function("hugetlb_fault@mm/hugetlb.c:2899") $mm:struct mm_struct*
$vma:struct vm_area_struct* $address:long unsigned int $flags:unsigned int
$hugetlb_instantiation_mutex:struct mutex
kernel.function("is_vma_temporary_stack@mm/rmap.c:1435") $vma:struct
vm_area_struct*
kernel.function("pmd_numa@include/asm-generic/pgtable.h:665") $pmd:pmd_t
kernel.function("pmd_trans_huge@/usr/src/debug/kernel-3.13.fc21/linux-3.14.0-0.rc4.git3.1.fc21.x86_64/arch/x86/include/asm/pgtable.h:164")
$pmd:pmd_t
kernel.function("pmd_trans_splitting@/usr/src/debug/kernel-3.13.fc21/linux-3.14.0-0.rc4.git3.1.fc21.x86_64/arch/x86/include/asm/pgtable.h:159")
$pmd:pmd_t
====

So, I did a git bisect. It looks like this started with the following commit:

====
commit 67959c62576af851d8ae220d836ca6b527ec6aea
Author: Jonathan Lebon <jlebon@redhat.com>
Date:   Tue Jan 28 14:51:07 2014 -0500

    implement iterate_over_callees()

    In this patch, we actually implement iterate_over_callees(). This
    function looks for inlined subroutines or GNU_call_sites and calls the
    callback for each found. The query_callee() callback for now simply does
    a query_statement on the callee found. Logic is added in the next patch
    to limit probing to calls from caller only.
====

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