Why rtems arm bsp do not set xn flag when config mmu device region?

2023-06-19 Thread tianye
Hi: Why rtems arm bsp do not set xn flag when config mmu device region?#define AARCH64_MMU_FLAGS_BASE \  ( MMU_DESC_VALID | MMU_DESC_SH_INNER | MMU_DESC_AF )#define AARCH64_MMU_DATA_RO_CACHED \  ( AARCH64_MMU_FLAGS_BASE | MMU_DESC_MAIR_ATTR( 3 ) | MMU_DESC_WRITE_DISABLE )#define AARCH64_MMU_CODE_CA

Re: Question on rtems printf problem

2022-12-19 Thread tianye
It's just a random string testcase for printf.I know it's not a correct parameter for printf, but this lead to uart print space(ascii:0x20)0 forever.Maybe it's a newlib bug.So, I was wonder who encountered this proble, and how to solve this problem.-gro...@chichak.ca ׫д:-ÊÕ¼þÈË: tia...@su

Question on rtems printf problem

2022-12-19 Thread tianye
Hi: I have a testcode, it will lead to uart print space forever.Demo code like this: Init() { create a task; start this task; printf("%*\n");while(1) { sleep() } }This code lead to uart print space forever('SPACE' ascii is 0x20): 'SPACE''SPACE''SPACE''SPACE''SPACE''SPACE''SPA

[rtems priority problem]

2022-06-13 Thread tianye
rit policy;        step3:task1 continue running and attempt to get semaphore1(ceiling priority is 6), rtems_semaphore_obtain will return failed because of task1 priority is greater than semaphore1.     So, occasionally task1 get semaphore1 failed.regards---Tianye Ye ___

【About rtems condition variable signal intf】

2021-07-01 Thread tianye
Hello rtems_condition_variable_broadcast call _Condition_Broadcast, like this: but in score level, there is a _Condition_Signal func, like this: Is it a bug? thanks! ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users