c++ - Determine stack usage of a posix pthread? -


how determine current amount of stack space used current thread in multi-threaded c++ program? i'm using posix pthreads.

i have multi-threaded program 1 of stacks blowing up, can't figure out one. i'm interested in having each thread report log file current stack usage, should difference between thread's start of stack , current stack pointer. know how in assembly language i'm looking portable approach using pthreads call or similar.

thanks.

i have multi-threaded program 1 of stacks blowing up, can't figure out one.

let program crash , leave core file. load core debugger, , it tell right away thread crashed.

the thread crashed not 1 overflow.

it's true there scenarios 1 thread overflows stack, thread crashes because of it.

however, such scenarios exceedingly rare (at least non-user allocated thread stacks -- pthread library provide stack guard page(s) protect agains this). can think of 1 such scenario, , it's unlikely in practice.

i'm looking portable approach using pthreads call or similar.

there no portable way achieve want. on linux, use pthread_getattr_np , pthread_attr_getstack find boundaries of current thread stack, , compute current stack use there.


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