linux 内核 栈 源码,linux – 内核堆栈跟踪到源代码行

给定带有调试符号的未剥离的vmlinux(通常包含与您的内核版本匹配的“linux-devel”或“linux-headers”包),您可以使用binutils附带的addr2line程序将地址转换为源文件中的行.

考虑这个呼叫追踪：

Call Trace:

[] ? finish_task_switch+0x3d/0x120

[] __schedule+0x3b0/0x9d0

[] schedule+0x29/0x70

[] schedule_hrtimeout_range_clock.part.24+0xdc/0xf0

[] ? hrtimer_get_res+0x50/0x50

[] ? schedule_hrtimeout_range_clock.part.24+0x7f/0xf0

[] schedule_hrtimeout_range_clock+0x19/0x60

[] schedule_hrtimeout_range+0x13/0x20

[] poll_schedule_timeout+0x49/0x70

[] do_sys_poll+0x423/0x550

[] ? sock_recvmsg+0x9c/0xd0

[] ? poll_select_copy_remaining+0x140/0x140

[] ? poll_select_copy_remaining+0x140/0x140

[] ? poll_select_copy_remaining+0x140/0x140

[] ? poll_select_copy_remaining+0x140/0x140

[] ? poll_select_copy_remaining+0x140/0x140

[] ? poll_select_copy_remaining+0x140/0x140

[] ? poll_select_copy_remaining+0x140/0x140

[] ? poll_select_copy_remaining+0x140/0x140

[] ? poll_select_copy_remaining+0x140/0x140

[] SyS_poll+0x5e/0x100

[] system_call_fastpath+0x16/0x1b

然后可以找到poll_select_copy_remaining中调用者的地址：

$addr2line -e /tmp/vmlinux ffffffff811a8c50

/tmp/linux-3.15-rc8/fs/select.c:209