函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_output.c Create Date:2022-07-27 13:11:19
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：seq_print_user_ip

函数原型：static int seq_print_user_ip(struct trace_seq *s, struct mm_struct *mm, unsigned long ip, unsigned long sym_flags)

返回类型：int

参数：

类型参数名称
struct trace_seq *s
struct mm_struct *mm
unsigned longip
unsigned longsym_flags
386  struct file * file = NULL
387  vmstart等于0
388  ret等于1
390  如果full则返回:0
393  如果mm则
396  lock for reading
397  vma等于Look up the first VMA which satisfies addr < vm_end, NULL if none.
398  如果vma则
399  file等于File we map to (can be NULL).
400  vmstart等于Our start address within vm_mm.
402  如果file则
403  ret等于trace_seq_path(s, & f_path)
404  如果ret则Currently only defined when tracing is enabled.
408  lease a read lock
410  如果ret且sym_flags按位与TRACE_ITER_SYM_ADDR或非file的值则Currently only defined when tracing is enabled.
412  返回:非跟踪泛滥
调用者
名称描述
trace_user_stack_printTRACE_USER_STACK