函数逻辑报告 |
Source Code:kernel\bpf\hashtab.c |
Create Date:2022-07-27 14:25:22 |
Last Modify:2022-05-23 09:15:29 | Copyright©Brick |
首页 | 函数Tree |
注解内核,赢得工具 | 下载SCCT | English |
函数名称:Called from syscall or from eBPF program directly, so* arguments have to match bpf_map_lookup_elem() exactly.* The return value is adjusted by BPF instructions* in htab_map_gen_lookup().
函数原型:static void *__htab_map_lookup_elem(struct bpf_map *map, void *key)
返回类型:void
参数:
类型 | 参数 | 名称 |
---|---|---|
struct bpf_map * | map | |
void * | key |
469 | WARN_ON_ONCE(!_read_lock_held() - might we be in RCU read-side critical section?* If CONFIG_DEBUG_LOCK_ALLOC is selected, returns nonzero iff in an RCU* read-side critical section) |
473 | hash等于htab_map_hash(key, key_size, hashrnd) |
475 | head等于select_bucket(htab, hash) |
477 | l等于an be called without bucket lock. it will repeat the loop in* the unlikely event when elements moved from one bucket into another* while link list is being walked |
479 | 返回:l |
名称 | 描述 |
---|---|
htab_map_lookup_elem | |
__htab_lru_map_lookup_elem | |
htab_percpu_map_lookup_elem | Called from eBPF program |
htab_lru_percpu_map_lookup_elem | |
bpf_percpu_hash_copy | |
htab_percpu_map_seq_show_elem |
源代码转换工具 开放的插件接口 | X |
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支持:c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现:逻辑报告 代码生成和批量转换代码 |