* Return
* Value specified by user at BPF link creation/attachment time
* or 0, if it was not specified.
+ *
+ * long bpf_task_pt_regs(struct task_struct *task)
+ * Description
+ * Get the struct pt_regs associated with **task**.
+ * Return
+ * A pointer to struct pt_regs.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
FN(timer_cancel), \
FN(get_func_ip), \
FN(get_attach_cookie), \
+ FN(task_pt_regs), \
/* */
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
const struct bpf_func_proto bpf_probe_read_user_str_proto __weak;
const struct bpf_func_proto bpf_probe_read_kernel_proto __weak;
const struct bpf_func_proto bpf_probe_read_kernel_str_proto __weak;
+const struct bpf_func_proto bpf_task_pt_regs_proto __weak;
const struct bpf_func_proto *
bpf_base_func_proto(enum bpf_func_id func_id)
return &bpf_snprintf_btf_proto;
case BPF_FUNC_snprintf:
return &bpf_snprintf_proto;
+ case BPF_FUNC_task_pt_regs:
+ return &bpf_task_pt_regs_proto;
default:
return NULL;
}
.ret_btf_id = &btf_task_struct_ids[0],
};
+BPF_CALL_1(bpf_task_pt_regs, struct task_struct *, task)
+{
+ return (unsigned long) task_pt_regs(task);
+}
+
+BTF_ID_LIST(bpf_task_pt_regs_ids)
+BTF_ID(struct, pt_regs)
+
+const struct bpf_func_proto bpf_task_pt_regs_proto = {
+ .func = bpf_task_pt_regs,
+ .gpl_only = true,
+ .arg1_type = ARG_PTR_TO_BTF_ID,
+ .arg1_btf_id = &btf_task_struct_ids[0],
+ .ret_type = RET_PTR_TO_BTF_ID,
+ .ret_btf_id = &bpf_task_pt_regs_ids[0],
+};
+
BPF_CALL_2(bpf_current_task_under_cgroup, struct bpf_map *, map, u32, idx)
{
struct bpf_array *array = container_of(map, struct bpf_array, map);
return &bpf_get_current_task_proto;
case BPF_FUNC_get_current_task_btf:
return &bpf_get_current_task_btf_proto;
+ case BPF_FUNC_task_pt_regs:
+ return &bpf_task_pt_regs_proto;
case BPF_FUNC_get_current_uid_gid:
return &bpf_get_current_uid_gid_proto;
case BPF_FUNC_get_current_comm:
* Return
* Value specified by user at BPF link creation/attachment time
* or 0, if it was not specified.
+ *
+ * long bpf_task_pt_regs(struct task_struct *task)
+ * Description
+ * Get the struct pt_regs associated with **task**.
+ * Return
+ * A pointer to struct pt_regs.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
FN(timer_cancel), \
FN(get_func_ip), \
FN(get_attach_cookie), \
+ FN(task_pt_regs), \
/* */
/* integer value in 'imm' field of BPF_CALL instruction selects which helper