Add FreeBSD support

Author: saghul

.github/workflows/ci.yml

@@ -401,3 +401,18 @@ jobs:
             cmake -B build
             cmake --build build -j $(sysctl -n hw.ncpu)
             ./build/qjs -qd
+
+  freebsd:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: build + test
+        uses: vmactions/freebsd-vm@v1
+        with:
+          usesh: true
+          prepare: |
+            pkg install -y cmake
+          run: |
+            cmake -B build
+            cmake --build build -j $(sysctl -n hw.ncpu)
+            ./build/qjs -qd

qjs.c

@@ -38,6 +38,8 @@
 #include <malloc/malloc.h>
 #elif defined(__linux__) || defined(__CYGWIN__)
 #include <malloc.h>
+#elif defined(__FreeBSD__)
+#include <malloc_np.h>
 #endif
 
 #include "cutils.h"
@@ -135,7 +137,7 @@ static inline size_t js_trace_malloc_usable_size(void *ptr)
     return malloc_size(ptr);
 #elif defined(_WIN32)
     return _msize(ptr);
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(__FreeBSD__)
     return malloc_usable_size(ptr);
 #else
     return 0;

quickjs-libc.c

@@ -67,13 +67,11 @@
 
 #if defined(__APPLE__)
 typedef sig_t sighandler_t;
-#if !defined(environ)
 #include <crt_externs.h>
 #define environ (*_NSGetEnviron())
 #endif
-#endif /* __APPLE__ */
 
-#if defined(__OpenBSD__)
+#if defined(__OpenBSD__) || defined(__FreeBSD__)
 typedef sig_t sighandler_t;
 extern char **environ;
 #endif
@@ -3591,6 +3589,8 @@ void js_std_set_worker_new_context_func(JSContext *(*func)(JSRuntime *rt))
 #define OS_PLATFORM "linux"
 #elif defined(__OpenBSD__)
 #define OS_PLATFORM "openbsd"
+#elif defined(__FreeBSD__)
+#define OS_PLATFORM "freebsd"
 #else
 #define OS_PLATFORM "unknown"
 #endif

quickjs.c

@@ -1646,7 +1646,7 @@ static inline size_t js_def_malloc_usable_size(void *ptr)
     return malloc_size(ptr);
 #elif defined(_WIN32)
     return _msize(ptr);
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(__FreeBSD__)
     return malloc_usable_size(ptr);
 #else
     return 0;