Slide 22
Slide 22 text
バックトレース
bt
コマンドでバックトレースを得られる
ただし処理系の C
ソースコードレベルで
(gdb) bt
#0 0x00007f1cd06e5706 in __GI___clock_nanosleep (clock_id=clock_id@entry=0, flags=flags@entry=0, req=r
at ../sysdeps/unix/sysv/linux/clock_nanosleep.c:78
#1 0x00007f1cd06f99b7 in __GI___nanosleep (req=req@entry=0x7fff345f9140, rem=rem@entry=0x7fff345f9140)
#2 0x00007f1cd070e32e in __sleep (seconds=0) at ../sysdeps/posix/sleep.c:55
#3 0x000055c608a0a5a5 in zif_sleep (execute_data=, return_value=0x7fff345f91e0) at /usr
#4 0x000055c608b4d4da in ZEND_DO_ICALL_SPEC_RETVAL_UNUSED_HANDLER () at /usr/src/php8.2-8.2.10-2ubuntu
#5 execute_ex (ex=0x0) at /usr/src/php8.2-8.2.10-2ubuntu1/Zend/zend_vm_execute.h:56040
#6 0x000055c608b536f5 in zend_execute (op_array=0x7f1ccde84100, return_value=0x7fff345f92c0) at /usr/s
#7 0x000055c608ad1309 in zend_eval_stringl (str=, str_len=, retval_ptr=0
at /usr/src/php8.2-8.2.10-2ubuntu1/Zend/zend_execute_API.c:1298
#8 0x000055c608ad14dd in zend_eval_stringl_ex (str=, str_len=, retval_pt