Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\kcov.c Create Date:2022-07-28 11:33:42
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:kcov_start

Proto:static void kcov_start(struct task_struct *t, unsigned int size, void *area, enum kcov_mode mode, int sequence)

Type:void

Parameter:

TypeParameterName
struct task_struct *t
unsigned intsize
void *area
enum kcov_modemode
intsequence
318  kcov_debug("t = %px, size = %u, area = %px\n", t, size, area)
320  kcov_size = size
321  kcov_area = area
323  The "volatile" is due to gcc bugs ()
324  WRITE_ONCE(kcov_mode, mode)
325  kcov_sequence = sequence
Caller
NameDescribe
kcov_ioctl_locked
kcov_remote_startkcov_remote_start() and kcov_remote_stop() can be used to annotate a section* of code in a kernel background thread to allow kcov to be used to collect* coverage from that part of code