Re: [PATCH bpf-next v2 7/9] samples/bpf: add a test for bpf_get_stack helper

On 4/18/18 9:37 PM, Alexei Starovoitov wrote: On Wed, Apr 18, 2018 at 09:54:42AM -0700, Yonghong Song wrote: The test attached a kprobe program to kernel function sys_write. It tested to get stack for user space, kernel space and user space with build_id request. It also tested to get user

Re: [PATCH bpf-next v2 7/9] samples/bpf: add a test for bpf_get_stack helper

On Wed, Apr 18, 2018 at 09:54:42AM -0700, Yonghong Song wrote: > The test attached a kprobe program to kernel function sys_write. > It tested to get stack for user space, kernel space and user > space with build_id request. It also tested to get user > and kernel stack into the same buffer with

[PATCH bpf-next v2 7/9] samples/bpf: add a test for bpf_get_stack helper

The test attached a kprobe program to kernel function sys_write. It tested to get stack for user space, kernel space and user space with build_id request. It also tested to get user and kernel stack into the same buffer with back-to-back bpf_get_stack helper calls. Whenever the kernel stack is