[Atari 8-bit] initial compile / no-compile tests (#286)

* [atari8'] initial tests

* refactor tests to add add_compile_test

"compile only" test can be used for targets where we don't have a
working emulator or test framework but want to check for possible
regressions in the SDK

* [atari8'] add compile tests

* [atari8'] remove unnecessary __attribute__((used))

test/CMakeLists.txt

@@ -41,3 +41,5 @@ add_test_target(nes-unrom)
 add_test_target(nes-unrom-512)
 add_test_target(atari2600-4k)
 add_test_target(atari2600-3e)
+add_test_target(atari8-dos)
+add_test_target(atari8-stdcart)

test/atari8-dos/CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.18)
+
+project(test-atari8-dos LANGUAGES C)
+
+include(../test.cmake)
+
+add_subdirectory(compile)
+add_subdirectory(no-compile)

test/atari8-dos/compile/CMakeLists.txt

@@ -0,0 +1,3 @@
+set_directory_properties(PROPERTIES EXCLUDE_FROM_ALL ON)
+
+add_compile_test(minimal)

test/atari8-dos/compile/minimal.c

@@ -0,0 +1,6 @@
+
+#include <stdio.h>
+
+int main(void) {
+  printf("hello\n");
+}

test/atari8-dos/no-compile/CMakeLists.txt

@@ -0,0 +1,3 @@
+set_directory_properties(PROPERTIES EXCLUDE_FROM_ALL ON)
+
+add_no_compile_test(ram-too-big)

test/atari8-dos/no-compile/ram-too-big.c

@@ -0,0 +1,23 @@
+// ExpectFailure: ld.lld: error: section '.data' will not fit in region 'ram'
+
+#include <stdint.h>
+
+// atari8-dos; presently we have 40KiB of RAM from 0x2000 to 0xC000,
+// array sizes have to be <=32767; use 30+10
+uint8_t ram_too_big0[30 * 1024] = { 0x55 };
+uint8_t ram_too_big1[10 * 1024] = { 0xAA };
+
+int main(void) {
+  asm volatile(
+    ""
+    :
+    : "r"(ram_too_big0)
+    :
+    );
+  asm volatile(
+    ""
+    :
+    : "r"(ram_too_big1)
+    :
+    );
+}

test/atari8-stdcart/CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.18)
+
+project(test-atari8-stdcart LANGUAGES C)
+
+include(../test.cmake)
+
+add_subdirectory(compile)
+add_subdirectory(no-compile)

test/atari8-stdcart/compile/CMakeLists.txt

@@ -0,0 +1,6 @@
+set_directory_properties(PROPERTIES EXCLUDE_FROM_ALL ON)
+
+add_compile_test(minimal)
+add_compile_test(cart-rom-8-fit-6)
+add_compile_test(cart-rom-16-fit-14)
+add_compile_test(cart-rom-size-declared)

test/atari8-stdcart/compile/cart-rom-16-fit-14.c

@@ -0,0 +1,16 @@
+
+#include <stdint.h>
+
+asm(".globl __cart_rom_size \n __cart_rom_size = 16");
+
+// atari8-stdcard, 16 KiB
+uint8_t data_too_big[14 * 1024] = { 0x55 };
+
+int main(void) {
+  asm volatile(
+    ""
+    :
+    : "r"(data_too_big)
+    :
+    );
+}

test/atari8-stdcart/compile/cart-rom-8-fit-6.c

@@ -0,0 +1,16 @@
+
+#include <stdint.h>
+
+asm(".globl __cart_rom_size \n __cart_rom_size = 8");
+
+// atari8-stdcard, 8 KiB
+uint8_t data_too_big[6 * 1024] = { 0x55 };
+
+int main(void) {
+  asm volatile(
+    ""
+    :
+    : "r"(data_too_big)
+    :
+    );
+}

test/atari8-stdcart/compile/cart-rom-size-declared.c

@@ -0,0 +1,13 @@
+
+#include <stdint.h>
+
+extern int __cart_rom_size;
+
+int main(void) {
+  asm volatile(
+    ""
+    :
+    : "r"(__cart_rom_size)
+    :
+    );
+}

test/atari8-stdcart/compile/minimal.c

@@ -0,0 +1,6 @@
+
+#include <stdio.h>
+
+int main(void) {
+  printf("hello\n");
+}

test/atari8-stdcart/no-compile/CMakeLists.txt

@@ -0,0 +1,5 @@
+set_directory_properties(PROPERTIES EXCLUDE_FROM_ALL ON)
+
+add_no_compile_test(ram-too-big)
+add_no_compile_test(cart-rom-8-too-big)
+add_no_compile_test(cart-rom-16-too-big)

test/atari8-stdcart/no-compile/cart-rom-16-too-big.c

@@ -0,0 +1,17 @@
+// ExpectFailure: ld.lld: error: section '.data' will not fit in region 'cart_rom': overflowed
+
+#include <stdint.h>
+
+asm(".globl __cart_rom_size \n __cart_rom_size = 16");
+
+// atari8-stdcard, 16 KiB, this won't fit
+uint8_t data_too_big[16 * 1024] = { 0x55 };
+
+int main(void) {
+  asm volatile(
+    ""
+    :
+    : "r"(data_too_big)
+    :
+    );
+}

test/atari8-stdcart/no-compile/cart-rom-8-too-big.c

@@ -0,0 +1,17 @@
+// ExpectFailure: ld.lld: error: section '.data' will not fit in region 'cart_rom': overflowed
+
+#include <stdint.h>
+
+asm(".globl __cart_rom_size \n __cart_rom_size = 8");
+
+// atari8-stdcard, 8 KiB, this won't fit
+uint8_t data_too_big[8 * 1024] = { 0x55 };
+
+int main(void) {
+  asm volatile(
+    ""
+    :
+    : "r"(data_too_big)
+    :
+    );
+}

test/atari8-stdcart/no-compile/ram-too-big.c

@@ -0,0 +1,15 @@
+// ExpectFailure: ld.lld: error: section '.bss' will not fit in region 'ram': overflowed
+
+#include <stdint.h>
+
+// atari8-stdcart; we have 14.25 KiB of RAM from 0x700 to 0x4000
+uint8_t ram_too_big[15 * 1024];
+
+int main(void) {
+  asm volatile(
+    ""
+    :
+    : "r"(ram_too_big)
+    :
+    );
+}

test/test.cmake

@@ -13,9 +13,9 @@ function(add_emutest_test name binext source_dir libretro_core)
     -t ${CMAKE_CURRENT_SOURCE_DIR}/../emutest.lua)
 endfunction()
 
-function(add_no_compile_test target)
+function(add_common_compile_test target type)
   add_executable(${target} ${target}.c)
-  add_test(NAME ${target}-no-compile COMMAND ${CMAKE_CTEST_COMMAND}
+  add_test(NAME ${target}-${type} COMMAND ${CMAKE_CTEST_COMMAND}
     --build-and-test ${CMAKE_CURRENT_SOURCE_DIR}/..
                      ${CMAKE_CURRENT_BINARY_DIR}/${target}
     --build-generator ${CMAKE_GENERATOR}
@@ -28,6 +28,16 @@ function(add_no_compile_test target)
       -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}
       -DCMAKE_EXPORT_COMPILE_COMMANDS=${CMAKE_EXPORT_COMPILE_COMMANDS}
     )
+endfunction()
+
+# negative (failure) compilation test
+function(add_compile_test target)
+  add_common_compile_test(${target} compile)
+endfunction()
+
+# negative (failure) compilation test
+function(add_no_compile_test target)
+  add_common_compile_test(${target} no-compile)
   set_property(TEST ${target}-no-compile PROPERTY WILL_FAIL YES)
 endfunction()