Can't see any symbols running perf call graph on an arm 64 target with 32-bit application.
perf record -F 999 -g -o /tmp/perf.data ./lratSampleAppArmLm
perf report -i /tmp/perf.data > /tmp/xxxxxx_perf.out
Sample application attached.
Result:
Running on a 32-bit system:
16.82% 16.82% lratSampleAppAr lratSampleAppArmLm [.] calculate_meaning_of_life
|
---calculate_meaning_of_life
going_to_hyperdrive
aligning_the_stars
gathering_the_bits
illustrate_call_chains
do_something
0x60f4
0xd56a0
main
|
|--0.02%-- __libc_start_main
--99.98%-- [...]
15.59% 15.58% lratSampleAppAr
Running on a 64-bit system with a 32-bit root file system:
lratSampleAppArmLm [.] calculate_meaning_of_life
|
---calculate_meaning_of_life
|
|--16.68%-- 0xf4879e2c
|
|--16.67%-- 0xf6079e2c
|
|--10.14%-- 0xf4079e2c
|
|--10.14%-- 0xf5079e2c
|
|--10.10%-- 0xf3879e2c
|
|--10.01%-- 0xf2879e2c
|
|--9.60%-- 0xf6879e2c
|
|--6.80%-- 0xf5879e2c
|
|--6.60%-- 0xf3079e2c
|
--3.26%-- 0xf7079e2c
Full results attached.
Additional info:
Perf seems to work fine if the application and its dependencies are 64-bit. It doesn't matter if perf is 32 or 64-bit.
