函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\bpf\btf.c Create Date:2022-07-27 14:36:48
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：btf_struct_seq_show

函数原型：static void btf_struct_seq_show(const struct btf *btf, const struct btf_type *t, u32 type_id, void *data, u8 bits_offset, struct seq_file *m)

返回类型：void

参数：

类型参数名称
const struct btf *btf
const struct btf_type *t
u32type_id
void *data
u8bits_offset
struct seq_file *m
2329  seq等于如果BTF_INFO_KIND( "info" bits arrangement * bits 0-15: vlen (e.g. # of struct's members) * bits 16-23: unused * bits 24-27: kind (e.g. int, ptr, array...etc) * bits 28-30: unused * bit 31: kind_flag, currently used by * struct, union and fwd)恒等于Union 则"|"否则","
2333  seq_puts(m, "{")
2335  member_type等于btf_type_by_id(btf, type)
2342  如果i则seq_puts(m, seq)
2345  member_offset等于btf_member_bit_offset(t, member)
2346  bitfield_size等于btf_member_bitfield_size(t, member)
2347  bytes_offset等于BITS_ROUNDDOWN_BYTES(member_offset)
2348  bits8_offset等于BITS_PER_BYTE_MASKED(member_offset)
2349  如果bitfield_size则
2350  btf_bitfield_seq_show(data + bytes_offset, bits8_offset, bitfield_size, m)
2352  否则
2353  ops等于btf_type_ops(member_type)
2354  seq_show(btf, member_type, type, data + bytes_offset, bits8_offset, m)
2358  seq_puts(m, "}")