tests/tcg/tricore: Add build infrastructure

this includes the Makefile and linker script to build all the tests.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210305170045.869437-5-kbastian@mail.uni-paderborn.de>
Message-Id: <20210512102051.12134-15-alex.bennee@linaro.org>

MAINTAINERS

@@ -349,6 +349,7 @@ S: Maintained
 F: target/tricore/
 F: hw/tricore/
 F: include/hw/tricore/
+F: tests/tcg/tricore/
 
 Multiarch Linux User Tests
 M: Alex Bennée <alex.bennee@linaro.org>

tests/tcg/tricore/Makefile.softmmu-target

+TESTS_PATH = $(SRC_PATH)/tests/tcg/tricore
+
+LDFLAGS = -T$(TESTS_PATH)/link.ld
+ASFLAGS =
+
+QEMU_OPTS += -M tricore_testboard -nographic -kernel
+
+%.pS: $(TESTS_PATH)/%.S
+	$(HOST_CC) -E -o $@ $<
+
+%.o: %.pS
+	$(AS) $(ASFLAGS) -o $@ $<
+
+%.tst: %.o
+	$(LD) $(LDFLAGS) $< -o $@

tests/tcg/tricore/link.ld

+/* Default linker script, for normal executables */
+OUTPUT_FORMAT("elf32-tricore")
+OUTPUT_ARCH(tricore)
+ENTRY(_start)
+
+/* the internal ram description */
+MEMORY
+{
+  text_ram (rx!p): org = 0x80000000, len = 15K
+  data_ram (w!xp): org = 0xd0000000, len = 130K
+}
+/*
+ * Define the sizes of the user and system stacks.
+ */
+__USTACK_SIZE = DEFINED (__USTACK_SIZE) ? __USTACK_SIZE : 1K ;
+/*
+ * Define the start address and the size of the context save area.
+ */
+__CSA_BEGIN =  0xd0000000 ;
+__CSA_SIZE =  8k ;
+__CSA_END = __CSA_BEGIN + __CSA_SIZE ;
+
+SECTIONS
+{
+  .text  :
+  {
+    *(.text)
+    . = ALIGN(8);
+  } > text_ram
+
+  .rodata :
+  {
+    *(.rodata)
+    *(.rodata1)
+  } > data_ram
+
+  .data :
+  {
+    . = ALIGN(8) ;
+    *(.data)
+    *(.data.*)
+    . = ALIGN(8) ;
+    __USTACK = . + __USTACK_SIZE -768;
+
+  } > data_ram
+  /*
+   * Allocate space for BSS sections.
+   */
+  .bss  :
+  {
+    BSS_BASE = . ;
+    *(.bss)
+    *(COMMON)
+    . = ALIGN(8) ;
+  } > data_ram
+  /* Make sure CSA, stack and heap addresses are properly aligned.  */
+  _. = ASSERT ((__CSA_BEGIN & 0x3f) == 0 , "illegal CSA start address") ;
+  _. = ASSERT ((__CSA_SIZE & 0x3f) == 0 , "illegal CSA size") ;
+
+}