Em Mon, Nov 09, 2020 at 02:29:11PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Fri, Nov 06, 2020 at 02:56:45PM -0800, Andrii Nakryiko escreveu:
> > On Fri, Nov 6, 2020 at 2:25 PM Jiri Olsa <jolsa@xxxxxxxxxx> wrote:
>
> > For the series:
>
> > Acked-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
>
> Thanks, applied, testing now.
Now we have:
$ pfunct -F btf /sys/kernel/btf/vmlinux | wc -l
38816
$ pfunct -F btf /sys/kernel/btf/vmlinux | head
get_e820_md5
relocate_restore_code
resume_play_dead
bsp_pm_callback
msr_initialize_bdw
msr_save_cpuid_features
pm_check_save_msr
amd_bus_cpu_online
update_res
pci_read
$
$ pfunct -F btf /sys/kernel/btf/vmlinux -f msr_save_cpuid_features
int msr_save_cpuid_features(const struct x86_cpu_id * c);
$
$ pfunct -F btf /sys/kernel/btf/vmlinux -f tcp_v4_rcv
int tcp_v4_rcv(struct sk_buff * skb);
$
[acme@five ~]$ pfunct -F btf /sys/kernel/btf/vmlinux --class=sk_buff | head
pskb_expand_head
skb_put
audit_list_rules_send
netlink_ack
consume_skb
skb_queue_head
skb_queue_tail
netlink_broadcast
__nlmsg_put
kfree_skb
[acme@five ~]$ pfunct -F btf /sys/kernel/btf/vmlinux -f audit_list_rules_send
int audit_list_rules_send(struct sk_buff * request_skb, int seq);
[acme@five ~]$ pfunct -F btf /sys/kernel/btf/vmlinux -f netlink_broadcast
int netlink_broadcast(struct sock * ssk, struct sk_buff * skb, __u32 portid, __u32 group, gfp_t allocation);
[acme@five ~]$
Seems to work :-)
In a future version I'll make it work with btf and
/sys/kernel/btf/vmlinux by default if only function names are provided,
like pahole with types:
[acme@five ~]$ pahole sk_buff_head
struct sk_buff_head {
struct sk_buff * next; /* 0 8 */
struct sk_buff * prev; /* 8 8 */
__u32 qlen; /* 16 4 */
spinlock_t lock; /* 20 4 */
/* size: 24, cachelines: 1, members: 4 */
/* last cacheline: 24 bytes */
};
[acme@five ~]$ pahole list_head
struct list_head {
struct list_head * next; /* 0 8 */
struct list_head * prev; /* 8 8 */
/* size: 16, cachelines: 1, members: 2 */
/* last cacheline: 16 bytes */
};
[acme@five ~]$
Pushed out.
- Arnaldo
