varun-r-mallya/python-bpf
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allow casting

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varun-r-mallya
2025-11-21 20:11:35 +05:30
parent fde8eab775
commit 25394059a6
5 changed files with 91 additions and 13 deletions
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7
tests/c-form/requests.bpf.c
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@ -1,15 +1,18 @@
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include <bpf/bpf_core_read.h>
char LICENSE[] SEC("license") = "GPL";
SEC("kprobe/blk_mq_start_request")
int example(struct pt_regs *ctx)
{
u64 a = ctx->r15;
struct request *req = (struct request *)(ctx->di);
u32 data_len = req->__data_len;
bpf_printk("data length %u\n", data_len);
unsigned int something_ns = BPF_CORE_READ(req, timeout);
unsigned int data_len = BPF_CORE_READ(req, __data_len);
bpf_printk("data length %lld %ld %ld\n", data_len, something_ns, a);
return 0;
}