anjiahao1 commented on PR #11207:
URL: https://github.com/apache/nuttx/pull/11207#issuecomment-1820150262
@masayuki2009
```
(base) ➜ nuttx git:(master) ✗ sudo lldb nuttx
(lldb) target create "nuttx"
Current executable set to
'/Users/pengxianghao/Documents/code/nuttx_community/nuttx/nuttx' (arm64).
(lldb) b nx_start
Breakpoint 1: where = nuttx`nx_start, address = 0x0000000100006434
(lldb) c
error: Command requires a current process.
(lldb) r
Process 24321 launched:
'/Users/pengxianghao/Documents/code/nuttx_community/nuttx/nuttx' (arm64)
Process 24321 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
frame #0: 0x0000000100006434 nuttx`nx_start
nuttx`nx_start:
-> 0x100006434 <+0>: sub sp, sp, #0x70
0x100006438 <+4>: stp x29, x30, [sp, #0x60]
0x10000643c <+8>: b 0x100006440 ; <+12>
0x100006440 <+12>: b 0x100006444 ; <+16>
Target 0: (nuttx) stopped.
(lldb) b bzero
Breakpoint 2: 4 locations.
(lldb) c
Process 24321 resuming
Process 24321 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
frame #0: 0x0000000100024584 nuttx`bzero
nuttx`bzero:
-> 0x100024584 <+0>: sub sp, sp, #0x20
0x100024588 <+4>: stp x29, x30, [sp, #0x10]
0x10002458c <+8>: str x0, [sp, #0x8]
0x100024590 <+12>: str x1, [sp]
Target 0: (nuttx) stopped.
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
* frame #0: 0x0000000100024584 nuttx`bzero
frame #1: 0x0000000100006488 nuttx`nx_start + 84
frame #2: 0x00000001000042f4 nuttx`sim_gpio_initialize -
18446744069414567179
(lldb) c
Process 24321 resuming
Process 24321 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
frame #0: 0x0000000100024584 nuttx`bzero
nuttx`bzero:
-> 0x100024584 <+0>: sub sp, sp, #0x20
0x100024588 <+4>: stp x29, x30, [sp, #0x10]
0x10002458c <+8>: str x0, [sp, #0x8]
0x100024590 <+12>: str x1, [sp]
Target 0: (nuttx) stopped.
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
* frame #0: 0x0000000100024584 nuttx`bzero
frame #1: 0x00000001000245a0 nuttx`bzero + 28
frame #2: 0x0000000100006488 nuttx`nx_start + 84
frame #3: 0x00000001000042f4 nuttx`sim_gpio_initialize -
18446744069414567179
(lldb) c
Process 24321 resuming
Process 24321 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
frame #0: 0x0000000100024584 nuttx`bzero
nuttx`bzero:
-> 0x100024584 <+0>: sub sp, sp, #0x20
0x100024588 <+4>: stp x29, x30, [sp, #0x10]
0x10002458c <+8>: str x0, [sp, #0x8]
0x100024590 <+12>: str x1, [sp]
Target 0: (nuttx) stopped.
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 2.1
* frame #0: 0x0000000100024584 nuttx`bzero
frame #1: 0x00000001000245a0 nuttx`bzero + 28
frame #2: 0x00000001000245a0 nuttx`bzero + 28
frame #3: 0x0000000100006488 nuttx`nx_start + 84
frame #4: 0x00000001000042f4 nuttx`sim_gpio_initialize -
18446744069414567179
(lldb) q
```
It looks like bzero has recursive behavior on macos.Any good suggestions?
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