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Lee Lup Yuen 2023-11-19 14:39:35 +08:00
parent 1980f821ff
commit f73fa77e95
1 changed files with 18 additions and 3 deletions
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README.md
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@ -2642,7 +2642,9 @@ Then `printf` will appear in our disassembly.
# NuttX App calls NuttX Kernel
TODO
Our NuttX App calls `write`, which is a Proxy Version...
From nuttx/syscall/proxies/PROXY_write.c
```c
/* Auto-generated write proxy file -- do not edit */
@ -2656,8 +2658,7 @@ ssize_t write(int parm1, FAR const void * parm2, size_t parm3)
return (ssize_t)sys_call3((unsigned int)SYS_write, (uintptr_t)parm1, (uintptr_t)parm2, (uintptr_t)parm3);
}
```
Proxy for write (nuttx/syscall/proxies/PROXY_write.c) calls...
Proxy for `write` calls...
[sys_call3](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/ox64b/arch/risc-v/include/syscall.h), which makes an `ecall` to NuttX Kernel...
@ -2688,6 +2689,20 @@ TODO: Why `nop`?
List of proxies...
```bash
→ grep PROXY hello.S
PROXY__assert.c
PROXY__exit.c
PROXY_clock_gettime.c
PROXY_gettid.c
PROXY_lseek.c
PROXY_nxsem_wait.c
PROXY_sem_clockwait.c
PROXY_sem_destroy.c
PROXY_sem_post.c
PROXY_sem_trywait.c
PROXY_task_setcancelstate.c
PROXY_write.c
→ grep PROXY init.S
PROXY__assert.c
PROXY__exit.c