Use Zig musl/libc++ toolchain to build programs

Author: fwsGonzo

.gitignore

@@ -1,4 +1,5 @@
 **/build/
+**/.zig/
 **/build_*/
 **/riscv32-unknown-elf/
 **/riscv64-unknown-elf/

engine/build.sh

@@ -5,7 +5,8 @@ export ENGINE_CC="ccache $CC"
 
 # Build the script
 pushd ../programs
-source build.sh $@
+#source build.sh $@
+source zig.sh $@
 popd
 
 echo "RISC-V C-extension is: $CEXT"

engine/scripts/CMakeLists.txt

@@ -16,26 +16,26 @@
 add_shared_program(gameplay.elf 0x50000000
 	*[Gg]ameplay*
 	"src/gameplay.cpp"
-	"src/gameplay_remote.cpp"
+	#"src/gameplay_remote.cpp"
 	"src/events.cpp"
 )
 
-add_level(gui.elf 0x400000
+add_level(gui.elf
 	"src/gui.cpp"
 )
-attach_program(gui.elf gameplay.elf)
+#attach_program(gui.elf gameplay.elf)
 
 
-add_level(level1.elf 0x400000
+add_level(level1.elf
 	"src/level1.cpp"
 	"src/level1_local.cpp"
-	"src/level1_remote.cpp"
+	#"src/level1_remote.cpp"
 	"src/level1_threads.cpp"
 	"src/events.cpp"
 )
-attach_program(level1.elf gameplay.elf)
+#attach_program(level1.elf gameplay.elf)
 
-add_level(level2.elf 0x400000
+add_level(level2.elf
 	"src/level2.cpp"
 )
-attach_program(level2.elf gameplay.elf)
+#attach_program(level2.elf gameplay.elf)

engine/scripts/src/events.cpp

@@ -1,5 +1,5 @@
 #include <api.h>
-#include <include/event_loop.hpp>
+#include <event_loop.hpp>
 
 static std::array<Events<>, 2> events;
 

engine/scripts/src/events.hpp

@@ -1,5 +1,5 @@
 #include <api.h>
-#include <include/event_loop.hpp>
+#include <event_loop.hpp>
 
 PUBLIC(bool add_work(const Events<>::Work*));
 

engine/scripts/src/gameplay.cpp

@@ -13,17 +13,17 @@ static void empty_function() {}
 
 static void full_thread_function()
 {
-	microthread::create([](int, int, int) { /* ... */ }, 1, 2, 3);
+	//microthread::create([](int, int, int) { /* ... */ }, 1, 2, 3);
 }
 
 static void oneshot_thread_function()
 {
-	microthread::oneshot([](int, int, int) { /* ... */ }, 1, 2, 3);
+	//microthread::oneshot([](int, int, int) { /* ... */ }, 1, 2, 3);
 }
 
 static void direct_thread_function()
 {
-	microthread::direct([] { /* ... */ });
+	//microthread::direct([] { /* ... */ });
 }
 
 static void opaque_dyncall_handler()
@@ -49,24 +49,10 @@ PUBLIC(void public_donothing())
 	/* nothing */
 }
 
-inline void* sys_memset(void* vdest, const int ch, std::size_t size)
-{
-	register char*   a0 asm("a0") = (char*)vdest;
-	register int     a1 asm("a1") = ch;
-	register size_t  a2 asm("a2") = size;
-	register long syscall_id asm("a7") = SYSCALL_MEMSET;
-
-	asm volatile ("ecall"
-	:	"=m"(*(char(*)[size]) a0)
-	:	"r"(a0), "r"(a1), "r"(a2), "r"(syscall_id));
-	return vdest;
-}
-
 static void bench_alloc_free()
 {
 	auto x = std::make_unique_for_overwrite<char[]>(1024);
 	__asm__("" :: "m"(x[0]) : "memory");
-	//sys_memset(x.get(), 0, 1024);
 }
 
 PUBLIC(void benchmarks())

engine/scripts/src/gui.cpp

@@ -14,6 +14,7 @@ measure_exception_throw()
 	{
 		print("Caught exception: ", e.what(), "\n");
 	}
+	//print("Exception handling done\n");
 	const auto cycle1 = rdcycle();
 	const auto time1  = rdtime();
 	return {cycle1-cycle0, time1-time0};

engine/scripts/src/interface.hpp

@@ -1,5 +1,5 @@
 #pragma once
-#include <include/function.hpp>
+#include <function.hpp>
 #include <map>
 #include <string>
 #include <vector>

engine/scripts/src/level1.cpp

@@ -23,7 +23,7 @@ PUBLIC(void start())
 	print("** Threads **\n");
 
 	/* Test-run some micro-threads. */
-	do_threads_stuff();
+	//do_threads_stuff();
 }
 
 static std::unique_ptr<TestData[]> test_vector;
@@ -75,6 +75,6 @@ void do_benchmarks()
 		});
 
 
-	if (Game::setting("remote").value_or(false))
-		do_remote_stuff();
+	//if (Game::setting("remote").value_or(false))
+	//	do_remote_stuff();
 }

engine/scripts/src/level1_threads.cpp

@@ -21,8 +21,9 @@ void do_threads_stuff()
 	b = 4;
 	c = 6;
 	microthread::yield();
+	print("Done, back in the main thread!\n");
 
-	auto thread = microthread::create(
+	/*auto thread = microthread::create(
 		[](int a, int b, int c)
 		{
 			print(
@@ -40,6 +41,7 @@ void do_threads_stuff()
 	print("Joining the thread any time now...\n");
 	auto retval = microthread::join(thread);
 	print("Full thread exited, return value: ", retval, "\n");
+	*/
 
 	/* GDB can be automatically opened at this point. */
 	Game::breakpoint();