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Fix tutorial 1 compilation with ecc by using vmlinux.h (#199)
* Initial plan * Fix tutorial 1 compilation by including vmlinux.h Co-authored-by: yunwei37 <34985212+yunwei37@users.noreply.github.com> * Update README documentation to reference vmlinux.h consistently Co-authored-by: yunwei37 <34985212+yunwei37@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: yunwei37 <34985212+yunwei37@users.noreply.github.com>
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@@ -77,7 +77,7 @@ We will start with a simple eBPF program that prints a message in the kernel. We
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```c
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/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
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#define BPF_NO_GLOBAL_DATA
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#include <linux/bpf.h>
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#include "vmlinux.h"
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_tracing.h>
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@@ -157,7 +157,7 @@ If you're still not seeing output, make sure the program is actually loaded and
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As mentioned above, the basic framework of an eBPF program includes:
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- Including header files: You need to include <linux/bpf.h> and <bpf/bpf_helpers.h> header files, among others.
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- Including header files: You need to include "vmlinux.h" and <bpf/bpf_helpers.h> header files, among others.
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- Defining a license: You need to define a license, typically using "Dual BSD/GPL".
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- Defining a BPF function: You need to define a BPF function, for example, named handle_tp, which takes void *ctx as a parameter and returns int. This is usually written in the C language.
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- Using BPF helper functions: In the BPF function, you can use BPF helper functions such as bpf_get_current_pid_tgid() and bpf_printk().
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@@ -76,7 +76,7 @@ Packing ebpf object and config into /src/package.json...
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```c
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/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
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#define BPF_NO_GLOBAL_DATA
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#include <linux/bpf.h>
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#include "vmlinux.h"
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_tracing.h>
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@@ -156,7 +156,7 @@ $ sudo sh -c 'echo 1 > /sys/kernel/debug/tracing/tracing_on'
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如上所述, eBPF 程序的基本框架包括:
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- 包含头文件:需要包含 <linux/bpf.h> 和 <bpf/bpf_helpers.h> 等头文件。
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- 包含头文件:需要包含 "vmlinux.h" 和 <bpf/bpf_helpers.h> 等头文件。
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- 定义许可证:需要定义许可证,通常使用 "Dual BSD/GPL"。
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- 定义 BPF 函数:需要定义一个 BPF 函数,例如其名称为 handle_tp,其参数为 void *ctx,返回值为 int。通常用 C 语言编写。
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- 使用 BPF 助手函数:在例如 BPF 函数中,可以使用 BPF 助手函数 bpf_get_current_pid_tgid() 和 bpf_printk()。
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@@ -1,6 +1,6 @@
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/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
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#define BPF_NO_GLOBAL_DATA
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#include <linux/bpf.h>
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#include "vmlinux.h"
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_tracing.h>
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