Merge branch 'main' of https://github.com/komaljai/p4c into tc_kfunc_…

…v13_changes

README.md

@@ -5,7 +5,31 @@
 [![Validation](https://github.com/p4lang/p4c/actions/workflows/ci-validation-nightly.yml/badge.svg)](https://github.com/p4lang/p4c/actions/workflows/ci-validation-nightly.yml)
 [![Docker Container](https://github.com/p4lang/p4c/actions/workflows/ci-container-image.yml/badge.svg)](https://github.com/p4lang/p4c/actions/workflows/ci-container-image.yml)
 
-# p4c
+
+p4c
+=================
+
+* [Getting started](#getting-started)
+   * [Installing packaged versions of p4c](#installing-packaged-versions-of-p4c)
+   * [Installing p4c from source](#installing-p4c-from-source)
+* [Dependencies](#dependencies)
+   * [Ubuntu dependencies](#ubuntu-dependencies)
+   * [Fedora dependencies](#fedora-dependencies)
+   * [macOS dependencies](#macos-dependencies)
+   * [Garbage collector](#garbage-collector)
+   * [Crash dumps](#crash-dumps)
+* [Development tools](#development-tools)
+   * [Git setup](#git-setup)
+* [Docker](#docker)
+* [Bazel](#bazel)
+* [Build system](#build-system)
+   * [Defining new CMake targets](#defining-new-cmake-targets)
+* [Known issues](#known-issues)
+   * [Frontend](#frontend)
+   * [Backends](#backends)
+* [How to Contribute](#how-to-contribute)
+* [P4 Compiler Onboarding](#p4-compiler-onboarding)
+* [Contact](#contact)
 
 p4c is a reference compiler for the P4 programming language.
 It supports both P4-14 and P4-16; you can find more information about P4
@@ -625,3 +649,29 @@ access them from the IR
 * Tables with multiple apply calls
 
 See also [unsupported P4_16 language features](backends/bmv2/README.md#unsupported-p4_16-language-features).
+
+# How to Contribute
+
+We welcome and appreciate new contributions. Please take a moment to review our [Contribution Guidelines](CONTRIBUTING.md) to get started.
+
+# P4 Compiler Onboarding
+Educational material on P4: 
+
+- General hands-on [tutorials](https://github.com/p4lang/tutorials).
+- [Technical documentation on P4-related topics](https://github.com/jafingerhut/p4-guide?tab=readme-ov-file#introduction).
+- Motivating P4: [IEEE ICC 2018 // Keynote: Nick McKeown, Programmable Forwarding Planes Are Here To Stay](https://www.youtube.com/watch?v=8ie0FcsN07U)
+- Introducing P4-16 in detail: 
+  - Part 1: [Introduction to P4_16. Part 1](https://www.youtube.com/watch?v=GslseT4hY1w)
+  - Part 2: [Introduction to P4_16. Part 2](https://www.youtube.com/watch?v=yqxpypXIOtQ)
+- Material on the official P4 compiler: 
+  - [Understanding the Open-Source P4-16 Compiler - February 15, 2022 - Mihai Budiu](https://www.youtube.com/watch?v=Rx5AQ0IF6eU)
+  - [Understanding P4-16 Open-Source Compiler, Part 2 - March 1, 2022 - Mihai Budiu](https://www.youtube.com/watch?v=YnPHPaPSmpU)
+  - [Compiler Design - Implementation Architecture](https://github.com/p4lang/p4c/blob/main/docs/compiler-design.pdf).
+- Introduction to P4Runtime: [Next-Gen SDN Tutorial - Session 1: P4 and P4Runtime Basics](https://www.youtube.com/watch?v=KRx92qSLgo4)
+
+# Contact
+We appreciate your contributions and look forward to working with you to improve the P4 Compiler Project (p4c)!
+- For further assistance or questions regarding contributions, reach out to us in our [community chat](https://p4-lang.slack.com/).  [Joining link](https://join.slack.com/t/p4-lang/shared_invite/zt-a9pe96br-Th73ueaBAwJw1ZbD_z1Rpg) .
+- For general P4-related questions, use the [P4 forum](https://forum.p4.org/).
+- For other communication channels click [here](https://p4.org/join/).
+

docs/README.md

@@ -86,14 +86,6 @@ p4c
 
 * Check out the [IntelliJ P4 plugin](https://github.com/TakeshiTseng/IntelliJ-P4-Plugin)
 
-# How to contribute
-
-* do write unit test code
-* code has to be reviewed before it is merged
-* make sure all tests pass when you send a pull request
-* make sure `make cpplint` produces no errors (`make check` will also run this)
-* write documentation
-
 # Writing documentation
 
 Documenting the workings of the compiler is a never-ending (many times

tools/driver/p4c_src/main.py

@@ -631,7 +631,8 @@ def main():
         string_to_pass_as___source_file = opts.json_source
 
     if P4_input_or_inputs_specified:
-        assert 1 == len(opts.P4_source_files)
+        if checkInput:
+            assert 1 == len(opts.P4_source_files)
         assert not JSON_input_specified
         string_to_pass_as___source_file = opts.P4_source_files[0]