Hi Bill, all,
I cancelled my original post - too large. Resending a shortened
version..
I sent mail to a NASA representative about the elf.h EM_
architecture enumerated value.
The elf.h files that I've been able to locate only go up to the
enumerated value of 95.
The Intel MIC application seems to be indicating a value of 181.
As per one of your suggestions, I put a switch case block in for the
enum value of 181 in dwarfHandle.C and mapped it to
#define EM_X86_64 62 /* AMD x86-64
architecture */
From dwarfHandle.C:
Dyninst::Architecture arch;
fprintf(stderr,"file->e_machine()=%d\n",
file->e_machine());
switch (file->e_machine()) {
case EM_386:
arch = Arch_x86;
break;
case EM_X86_64:
arch = Arch_x86_64;
break;
case EM_PPC:
arch = Arch_ppc32;
break;
case EM_PPC64:
arch = Arch_ppc64;
break;
//steve: added, defination found: /usr/include/linux/elf-em.h
case EM_ARM:
arch = Arch_aarch32;
break;
#if defined(arch_aarch64)
case EM_AARCH64:
arch = Arch_aarch64;
break;
#endif
case 181:
arch = Arch_x86_64;
break;
default:
assert(0 && "Unsupported architecture in ELF
file.");
return false;
}
sw = Dwarf::DwarfFrameParser::create(*frame_data, arch);
init_dwarf_status = dwarf_status_ok;
return true;
}
The execution of dyninst on the Intel MIC binary completes with this
change in.
However, we don't get any statement or loop information. It
looks like we are not finding any functions when we use the code
below.
functions.size() is always 0.
Could this be because Dyninst doesn't have the correct
architecture settings to work with? Or were there more subtle
changes to the API?
std::vector<LoopInfo> getLoopsAt(const
Address& address, BPatch_image& image)
{
std::vector<LoopInfo> retval;
// Iterate over each module within the specified image
BPatch_Vector<BPatch_module*>* modules =
image.getModules();
std::cerr << "DyninstSymbols.cxx: modules=" <<
modules << std::endl;
if (modules == NULL)
{
return retval;
}
std::cerr << "DyninstSymbols.cxx: modules->size()="
<< modules->size() << std::endl;
for (unsigned int m = 0; m < modules->size(); ++m)
{
BPatch_module* module = (*modules)[m];
if (module == NULL)
{
continue;
}
Address module_base = (uint64_t)module->getBaseAddr();
// Find the function(s) containing the specified address
BPatch_Vector<BPatch_function*> functions;
module->findFunctionByAddress( (void*)((module_base
+ address).getValue()), functions, false, false);
std::cerr << "DyninstSymbols.cxx: functions.size()="
<< functions.size() << std::endl;
Here is the output from the OpenSpeedShop run:
PBS maia96 3> osspcsamp "mpiexec.hydra -host mic0 -np
30 ./nbody.mic"
[openss]: pcsamp experiment using the pcsamp experiment default
sampling rate: "100".
[openss]: pcsamp experiment calling openss.
[openss]: Setting up offline raw data directory in
/nobackup/jgalarow/offline-oss
[openss]: Running offline pcsamp experiment using the command:
"mpiexec.hydra -host mic0 -np 30
/nobackupp8/jgalarow/maia/ossoffline/compute/bin/ossrun -c pcsamp
./nbody.mic"
/nasa/mic_knc/mic/basic/basic.2.0/bin/modulecmd: Command not
found.
Iteration 1 of 50...
Iteration 2 of 50...
..
..
Iteration 48 of 50...
Iteration 49 of 50...
Iteration 50 of 50...
[openss]: Converting raw data from /nobackup/jgalarow/offline-oss
into temp file X.0.openss
Processing raw data for nbody.mic ...
Processing processes and threads ...
Processing performance data ...
Processing symbols ...
Resolving symbols for /nobackupp8/jgalarow/demos/nbody/nbody.mic
file->e_machine()=181
file->e_machine()=62
Resolving symbols for /lib64/libc-2.14.90.so
--SERIOUS-- #68: Can't read executable file
/lib64/libc-2.14.90.so: No such file or directory
WARNING: Dyninst failed to open the linked object
"/lib64/libc-2.14.90.so"!
Resolving symbols for
/nasa/intel/impi/5.0.3.048/mic/lib/release_mt/libmpi.so.12.0
file->e_machine()=181
Resolving symbols for
/nobackupp8/jgalarow/maia/ossoffline/compute/lib64/openspeedshop/pcsamp-rt-offline.so
file->e_machine()=181
Resolving symbols for
/nasa/intel/impi/5.0.3.048/mic/lib/libmpifort.so.12.0
file->e_machine()=181
Updating database with symbols ...
Finished ...
[openss]: Restoring and displaying default view for:
/nobackupp8/jgalarow/demos/nbody/nbody.mic-pcsamp-4.openss
[openss]: The restored experiment identifier is: -x 1
Exclusive % of CPU Function (defining location)
CPU time Time
in
seconds.
154.130000 53.387600 main (nbody.mic)
98.710000 34.191202 __svml_div8_mask (nbody.mic)
33.140000 11.479044 MPIDI_CH3I_Progress (libmpi.so.12.0)
2.350000 0.813994 sqrt (nbody.mic)
0.060000 0.020783 MPIDI_CH3_iSendv (libmpi.so.12.0)
0.050000 0.017319 MPID_Isend (libmpi.so.12.0)
0.050000 0.017319 MPI_Irecv (libmpi.so.12.0)
0.040000 0.013855 MPI_Isend (libmpi.so.12.0)
0.020000 0.006928 __I_MPI___intel_lrb_memcpy
(libmpifort.so.12.0)
0.020000 0.006928 MPIR_Waitall_impl (libmpi.so.12.0)
0.020000 0.006928 MPIDI_CH3_Request_destroy (libmpi.so.12.0)
0.020000 0.006928 MPIDI_CH3U_Recvq_FDU_or_AEP
(libmpi.so.12.0)
0.010000 0.003464 MPIU_Handle_obj_alloc (libmpi.so.12.0)
0.010000 0.003464 MPIC_Wait (libmpi.so.12.0)
0.010000 0.003464 MPID_Irecv (libmpi.so.12.0)
0.010000 0.003464 MPIDI_CH3_PktHandler_EagerSend
(libmpi.so.12.0)
0.010000 0.003464 MPIDI_nem_active_vc (libmpi.so.12.0)
0.010000 0.003464 MPID_Send (libmpi.so.12.0)
0.010000 0.003464 PMPI_Waitall (libmpi.so.12.0)
0.010000 0.003464 MPIDI_CH3I_Posted_recv_enqueued
(libmpi.so.12.0)
0.010000 0.003464 MPIR_Allreduce_intra (libmpi.so.12.0)
PBS maia96 4> openss -cli -f
/nobackupp8/jgalarow/demos/nbody/nbody.mic-pcsamp-4.openss
openss>>[openss]: The restored experiment identifier is: -x
1
openss>>expview
Exclusive % of CPU Function (defining location)
CPU time Time
in
seconds.
154.130000 53.387600 main (nbody.mic)
98.710000 34.191202 __svml_div8_mask (nbody.mic)
33.140000 11.479044 MPIDI_CH3I_Progress (libmpi.so.12.0)
2.350000 0.813994 sqrt (nbody.mic)
0.060000 0.020783 MPIDI_CH3_iSendv (libmpi.so.12.0)
0.050000 0.017319 MPID_Isend (libmpi.so.12.0)
0.050000 0.017319 MPI_Irecv (libmpi.so.12.0)
0.040000 0.013855 MPI_Isend (libmpi.so.12.0)
0.020000 0.006928 __I_MPI___intel_lrb_memcpy
(libmpifort.so.12.0)
0.020000 0.006928 MPIR_Waitall_impl (libmpi.so.12.0)
0.020000 0.006928 MPIDI_CH3_Request_destroy (libmpi.so.12.0)
0.020000 0.006928 MPIDI_CH3U_Recvq_FDU_or_AEP
(libmpi.so.12.0)
0.010000 0.003464 MPIU_Handle_obj_alloc (libmpi.so.12.0)
0.010000 0.003464 MPIC_Wait (libmpi.so.12.0)
0.010000 0.003464 MPID_Irecv (libmpi.so.12.0)
0.010000 0.003464 MPIDI_CH3_PktHandler_EagerSend
(libmpi.so.12.0)
0.010000 0.003464 MPIDI_nem_active_vc (libmpi.so.12.0)
0.010000 0.003464 MPID_Send (libmpi.so.12.0)
0.010000 0.003464 PMPI_Waitall (libmpi.so.12.0)
0.010000 0.003464 MPIDI_CH3I_Posted_recv_enqueued
(libmpi.so.12.0)
0.010000 0.003464 MPIR_Allreduce_intra (libmpi.so.12.0)
openss>>expview -vstatements
(There are no objects specified for the basic Detail report.)
openss>>expview -vloops
(There are no objects specified for the basic Detail report.)
openss>>expview -v linkedobjects
Exclusive % of CPU LinkedObject
CPU time Time
in
seconds.
255.200000 88.270900 nbody.mic
33.730000 11.666840 libmpi.so.12.0
0.140000 0.048424 libc-2.14.90.so
0.030000 0.010377 libmpifort.so.12.0
0.010000 0.003459 pcsamp-rt-offline.so
openss>>
openss>>quit
On 07/28/2015 11:40 AM, Bill Williams
wrote:
On
07/28/2015 11:31 AM, Jim Galarowicz wrote:
Hi Bill,
I've built dyninst from the latest git bits for dyninst and then
changed
our source to get around the loop head API issue.
When I run using the new version of dyninst, I'm still getting
the
architecture assert shown below.
Is there anything I can try to get around this issue?
Have you tracked down the target elf.h on maia? If I can get my
hands on the enums from that, I can (or you can, for that matter)
patch appropriately in that switch--it's entirely a matter of
mapping ELF machine IDs to the closest available dyninst
architecture (if one exists).
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