LK
you can try reading documentation for once
yes of course , the good way is that all of that functions are aligned in memory considered like a frame , 🙈🙈
Size: a a a
2021 April 01
2021 April 02
BD
yes of course , the good way is that all of that functions are aligned in memory considered like a frame , 🙈🙈
that's not that frame
LK
that's not that frame
Ohh ...😢
LK
did you think that it is okay ??😅 or i have forget something ??
BD
yeah you forgot to actually trace back the frames
LK
yeah you forgot to actually trace back the frames
😂
LK
how can i read
rsp registers ??? i have tried this way : asm volatile("mov %0,%%rsp" : "=r" (rsp)); but i have segmentation faultd
how can i read
rsp registers ??? i have tried this way : asm volatile("mov %0,%%rsp" : "=r" (rsp)); but i have segmentation faultКажется, команда не читает а пишет...
DF
Да, это gas
DF
Там порядок обратный
LK
😳 ... okay
LK
We can use local variable To deduce thé
rbp valued
Dollar Føølish
Да, это gas
Гас на gas поправь, а то у человека Гугл транслейт
d
Хотя тоже не поможет...
a
how can i read
rsp registers ??? i have tried this way : asm volatile("mov %0,%%rsp" : "=r" (rsp)); but i have segmentation faultYou don't need RSP for stack trace, use RBP instead
See this:
https://git.alnyan.me/yggdrasil/kernel/tree/sys/debug.c#n20
See this:
https://git.alnyan.me/yggdrasil/kernel/tree/sys/debug.c#n20
d
You don't need RSP for stack trace, use RBP instead
See this:
https://git.alnyan.me/yggdrasil/kernel/tree/sys/debug.c#n20
See this:
https://git.alnyan.me/yggdrasil/kernel/tree/sys/debug.c#n20
А как же оптимизация когда компилятор выкидывает rbp?
DF
так тогда и не получится собрать бактрейс
DF
без информации известной только при компиляции
DF
компиль же выкидвает фрейм поинтер потому что он ей располагает