Output the current call stack programmatically.

Adds a function that will show some information about the current call stack. Useful to see where the code you are interested in is being called from without opening up a debugger Not as good as line numbers are not available.

Sample output:

[0000] [00000.9] print_backtrace: threadpool_map
[0000] [00000.9] print_backtrace: eagle_6.yml(print_backtrace+0x67) [0x557d7e749ae7]
[0000] [00000.9] print_backtrace: eagle_6.yml(threadpool_map+0x136) [0x557d7e6b51a6]
[0000] [00000.9] print_backtrace: eagle_6.yml(space_free_cells+0x48) [0x557d7e625a68]
[0000] [00000.9] print_backtrace: eagle_6.yml(space_regrid+0x1396) [0x557d7e614ac6]
[0000] [00000.9] print_backtrace: eagle_6.yml(space_rebuild+0x5a) [0x557d7e60f00a]
[0000] [00000.9] print_backtrace: eagle_6.yml(engine_rebuild+0x8f) [0x557d7e63578f]
[0000] [00000.9] print_backtrace: eagle_6.yml(engine_init_particles+0x97) [0x557d7e639527]
[0000] [00000.9] print_backtrace: eagle_6.yml(main+0x4245) [0x557d7e5ff1c5]

[0000] [00000.8] print_backtrace: eagle_6.yml(print_backtrace+0x67) [0x557d7e749ae7]
[0000] [00000.8] print_backtrace: eagle_6.yml(threadpool_map+0x136) [0x557d7e6b51a6]
[0000] [00000.8] print_backtrace: eagle_6.yml(engine_redistribute+0xfb0) [0x557d7e65e250]
[0000] [00000.8] print_backtrace: eagle_6.yml(engine_split+0x78) [0x557d7e637588]
[0000] [00000.8] print_backtrace: eagle_6.yml(main+0x4231) [0x557d7e5ff1b1]
[0000] [00000.8] print_backtrace: /lib/x86_64-linux-gnu/libc.so.6(+0x29d90) [0x14a6a6644d90]
[0000] [00000.8] print_backtrace: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80) [0x14a6a6644e40]

So not sure why the program is shown as the parameter file, but the basics are clear.

Uses glibc call so also configured as needed.

added code health enhancement suggestion labels

assigned to @pdraper

And the function I used to narrow down !1692 (merged).

@matthieu this can be useful, so wanted to keep a permanent version around. Not sure this the right place. Any thoughts about that?

changed the description

merged

mentioned in commit 8fc27fd2