On Wed, May 27, 2015 at 05:19:44AM +0000, Wang Nan wrote:
> Expand bpf_obj_elf_collect() to collect license and kernel version
> information in eBPF object file. eBPF object file should have a section
> named 'license', which contains a string. It should also have a section
> named 'version', contains a u32 LINUX_VERSION_CODE.
>
> bpf_obj_validate() is introduced to validate object file after loaded.
> Currently it only check existance of 'version' section.
>
> Signed-off-by: Wang Nan <wangn...@huawei.com>
> ---
...
> +static int
> +bpf_object__init_kversion(struct bpf_object *obj,
> + void *data, size_t size)
> +{
> + u32 kver;
> + if (size < sizeof(kver)) {
shouldn't it be '!=' ?
> + pr_warning("invalid kver section in %s\n", obj->path);
> + return -EINVAL;
> + }
> + memcpy(&kver, data, sizeof(kver));
> + obj->kern_version = kver;
> + pr_debug("kernel version of %s is %x\n", obj->path,
> + obj->kern_version);
> + return 0;
> +}
> +
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