libgompd output test

Mohamed Atef
Wed Jun 29 04:45:51 GMT 2022


for this test case,

1.#include <stdio.h>
2.#include <omp.h>
6.  omp_set_num_threads (5);
7.  #pragma omp parallel
8.    {
9.      int th = omp_get_thread_num ();
10.      printf ("i am thread %d\n", th);
11.    }
12.  return 0;

Reading symbols from a.out...
OMPD GDB support loaded
Run 'ompd init' to start debugging
(gdb) ompd init
Temporary breakpoint 1 at 0x40115a: file pro.c, line 6.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/".

Temporary breakpoint 1, main () at pro.c:6
6  omp_set_num_threads (5);
Loaded OMPD lib successfully!
(gdb) b 10
Breakpoint 2 at 0x401198: file pro.c, line 10.
(gdb) c
[New Thread 0x7ffff7d45700 (LWP 116224)]
[New Thread 0x7ffff7544700 (LWP 116225)]
[New Thread 0x7ffff6d43700 (LWP 116226)]
[Switching to Thread 0x7ffff7d45700 (LWP 116224)]

Thread 2 "a.out" hit Breakpoint -14, gomp_thread_start
(xdata=0x7fffffffd950) at ../../../gcc/libgomp/config/linux/sem.h:46
46  *sem = value * SEM_INC;
[New Thread 0x7ffff6542700 (LWP 116227)]
[Switching to Thread 0x7ffff7544700 (LWP 116225)]

Thread 3 "a.out" hit Breakpoint -14, gomp_thread_start
(xdata=0x7fffffffd9d0) at ../../../gcc/libgomp/config/linux/sem.h:46
46  *sem = value * SEM_INC;
[Switching to Thread 0x7ffff6d43700 (LWP 116226)]

Thread 4 "a.out" hit Breakpoint -14, gomp_thread_start
(xdata=0x7fffffffda50) at ../../../gcc/libgomp/config/linux/sem.h:46
46  *sem = value * SEM_INC;
[Switching to Thread 0x7ffff6542700 (LWP 116227)]

Thread 5 "a.out" hit Breakpoint -14, gomp_thread_start
(xdata=0x7fffffffdad0) at ../../../gcc/libgomp/config/linux/sem.h:46
46  *sem = value * SEM_INC;

Thread 5 "a.out" hit Breakpoint 2, main._omp_fn.0 () at pro.c:10
10    printf ("i am thread %d\n", th);
(gdb) bt
#0  main._omp_fn.0 () at pro.c:10
#1  0x00007ffff7f9dd8e in gomp_thread_start (xdata=<optimized out>) at
#2  0x00007ffff7f48609 in start_thread (arg=<optimized out>) at
#3  0x00007ffff7e6d133 in clone () at
(gdb) ompd icv
Initialized ICV map successfully for checking OMP API values.
ICV                                Name Scope                 Value
cancel var                      address_space             0
max task priority var           address_space          0
stack size var                  address_space             0
debug var                       address_space              0
OMP_DEBUG                address_space              enabled
display affinity var            address_space              0
affinity format var             address_space              level %L thread
%i affinity %A
affinity format len var         address_space              0
wait policy var                 address_space              4294967295
num teams var                   address_space              0
teams thread limit var          address_space              0
spin count var                  address_space              300000
num proc var                    address_space              8
throttled spin count var        address_space              100
managed threads var             address_space              5


the output of icv is for global icvs and environment variables are set.
The output may be mangled by the mailer.
How is this output?

The thread_handle patch is ready and will be under review today.

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