https://sourceware.org/bugzilla/show_bug.cgi?id=21174
--- Comment #6 from Thommy Jakobsson <thommyj at gmail dot com> ---
Hi again and thanks for spending the time.
>>Maybe you can debug by triggering the pr_debug ()
Switched the pr_debug to a normal printf, and also added a printout of program
counter directly in the libdw frame callback (see attached patch). And from
what I can see the duplication of symbol comes from libdw
>>eu-readelf --debug-dump=frame /usr/local/bin/Application
Not fully understand how to read the callstack debug data, is this what you
want? I guess you are supposed to unroll the entire register file from last
function with this info, so I would have expected more data.
[ 1ad8] FDE length=36 cie=[ 1aa0]
CIE_pointer: 6816
initial_location: 0x00000000006e35d8 <IBUFDIST_distribute>
address_range: 0x58
Program:
advance_loc 2 to 0x4
def_cfa_offset 32
offset r29 (x29) at cfa-32
offset r30 (x30) at cfa-24
advance_loc 2 to 0x8
def_cfa_register r29 (x29)
advance_loc 38 to 0x54
restore r30 (x30)
restore r29 (x29)
def_cfa r31 (sp) at offset 0
[ 1b00] CIE length=12
CIE_id: 18446744073709551615
version: 1
augmentation: ""
code_alignment_factor: 2
data_alignment_factor: -4
return_address_register: 30
Program:
def_cfa r31 (sp) at offset 0
BR,
Thommy Jakobsson
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