From bfbb477f60cdee892086d1ec81f00340809da359 Mon Sep 17 00:00:00 2001
From: TheBrokenRail <connor24nolan@live.com>
Date: Sat, 15 Feb 2025 00:03:19 -0500
Subject: [PATCH] CI Attempt

---
 .gitea/workflows/build.yml      | 33 +++++++++++++++++++++++++++++++++
 README.md                       |  2 +-
 example/build.sh                |  2 ++
 example/guest/src/example.c     |  2 ++
 lib/include/trampoline/types.h  |  9 ++++++---
 lib/src/syscall.cpp             |  2 +-
 scripts/install-dependencies.sh | 13 +++++++++++++
 src/main.cpp                    |  2 +-
 8 files changed, 59 insertions(+), 6 deletions(-)
 create mode 100644 .gitea/workflows/build.yml
 create mode 100755 scripts/install-dependencies.sh

diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
new file mode 100644
index 0000000..1d92304
--- /dev/null
+++ b/.gitea/workflows/build.yml
@@ -0,0 +1,33 @@
+name: 'CI'
+on:
+    push:
+        branches:
+          - master
+
+# Jobs
+jobs:
+    # Test Project
+    test:
+        strategy:
+            fail-fast: false
+            matrix:
+                arch:
+                  - AMD64
+                  - ARM64
+        name: Test
+        runs-on: ${{ startsWith(matrix.arch, 'ARM') && 'raspberry-pi' || 'ubuntu-latest' }}
+        steps:
+          - name: Checkout Repository
+            uses: actions/checkout@v4
+          # Dependencies
+          - name: Install Dependencies
+            run: ./scripts/install-dependencies.sh
+          # Build
+          - name: Build
+            run: ./example/build.sh
+          # Test
+          - name: Test (Pipe-Based)
+            run: MCPI_USE_PIPE_TRAMPOLINE=1 ./example/run.sh
+          - name: Test (Syscall-Based)
+            run: ./example/run.sh
+            if: ${{ ! startsWith(matrix.arch, 'ARM') }}
\ No newline at end of file
diff --git a/README.md b/README.md
index 4697e5b..8646ec2 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ This is a simple program allowing ARM32 code to easily call "native" code.
 
 By running an ARM32 program inside this runtime, it gains the ability to call `raw_trampoline()`. This function copies its arguments and passes them to the "host" code.
 
-The runtime also automatically uses QEMU on x86_64 systems.
+The runtime also automatically uses QEMU on non-ARM systems.
 
 ## Terminology
 - "Guest" code is the main ARM32 program. It is running inside the runtime.
diff --git a/example/build.sh b/example/build.sh
index df2799a..ca2db5a 100755
--- a/example/build.sh
+++ b/example/build.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
 set -e
+cd "$(dirname "$0")"
 
 # Run Script
 RUN="$(pwd)/run.sh"
@@ -10,6 +11,7 @@ out() {
 }
 out '#!/bin/sh'
 out 'set -e'
+out 'cd "$(dirname "$0")"'
 chmod +x "${RUN}"
 
 # Create Build Directory
diff --git a/example/guest/src/example.c b/example/guest/src/example.c
index df0158e..4e8a5bc 100644
--- a/example/guest/src/example.c
+++ b/example/guest/src/example.c
@@ -16,6 +16,8 @@ void run(uint32_t cmd, const char *str) {
 // Main
 #define INFO(str) fprintf(stderr, "==== %s ====\n", str)
 int main() {
+    // Check Trampoline Type
+    fprintf(stderr, "Using Pipe-Based Trampoline: %i\n", is_trampoline_pipe_based());
     // Normal Calls
     INFO("Testing Normal Trampoline Calls");
     run(0, "Hello World!");
diff --git a/lib/include/trampoline/types.h b/lib/include/trampoline/types.h
index 053c028..4294c19 100644
--- a/lib/include/trampoline/types.h
+++ b/lib/include/trampoline/types.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <stdint.h>
+#include <stdlib.h>
 
 // C++ Support
 #ifdef __cplusplus
@@ -30,11 +31,13 @@ typedef trampoline_raw_t *trampoline_t;
 #endif
 
 // Environmental Variables
-#ifdef __cplusplus
-#define ENV(name, ...) constexpr const char *name##_ENV = #name;
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-variable"
+#define ENV(name, ...) static const char *name##_ENV = #name;
 #include "env-list.h"
 #undef ENV
-#endif
+#pragma GCC diagnostic pop
+#define is_trampoline_pipe_based() (getenv(MCPI_USE_PIPE_TRAMPOLINE_ENV) != NULL)
 
 // Call Trampoline From Guest Code
 #ifndef MCPI_BUILD_RUNTIME
diff --git a/lib/src/syscall.cpp b/lib/src/syscall.cpp
index 0241ce3..dfaf0d9 100644
--- a/lib/src/syscall.cpp
+++ b/lib/src/syscall.cpp
@@ -5,7 +5,7 @@
 
 // Check
 bool SyscallTrampoline::should_use() {
-    return getenv(MCPI_USE_PIPE_TRAMPOLINE_ENV) == nullptr;
+    return !is_trampoline_pipe_based();
 }
 
 // Call
diff --git a/scripts/install-dependencies.sh b/scripts/install-dependencies.sh
new file mode 100755
index 0000000..b8c587b
--- /dev/null
+++ b/scripts/install-dependencies.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+set -e
+
+apt-get update
+apt-get install -y --no-install-recommends \
+    cmake \
+    ninja-build \
+    gcc g++ \
+    python3 \
+    python3-venv \
+    python3-tomli \
+    libglib2.0-dev
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index a22fc3c..f20c02c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -16,7 +16,7 @@ int main(int argc, char *argv[]) {
     // Create Implementation
     Implementation *impl = new PipeImplementation;
 #ifdef MCPI_HAS_QEMU
-    if (getenv(MCPI_USE_PIPE_TRAMPOLINE_ENV) == nullptr) {
+    if (!is_trampoline_pipe_based()) {
         delete impl;
         impl = new SyscallImplementation;
     }