feat(tricore): Initial tricore support

.github/workflows/build-tricore.yaml

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+name: Tricore Build
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+
+  build-tricore:
+    runs-on: ubuntu-latest
+    container: baoproject/bao:latest
+    strategy:
+      matrix:
+        platform: [
+          "tc4dx",
+        ]
+        cross_compile: [
+            "CROSS_COMPILE=tricore-elf-",
+        ]
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - run: make PLATFORM=${{ matrix.platform }} \
+            CONFIG=null ${{ matrix.cross_compile }}

scripts/arch/tricore/platform_defs_gen.c

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+/**
+ * SPDX-License-Identifier: Apache-2.0
+ * Copyright (c) Bao Project and Contributors. All rights reserved
+ */
+
+#include <stdio.h>
+#include <platform.h>
+
+extern uint32_t plat_ints[];
+extern uint32_t plat_int_size;
+
+void arch_platform_defs() {
+    unsigned int bitmap[64] = {0};
+    unsigned int count = plat_int_size;
+
+    for(int i = 0; i < count; i++){
+        unsigned int irq = plat_ints[i];
+        unsigned int index = irq / 32;
+        unsigned int bit = irq % 32;
+
+        if(index < 64 && bit < 32)
+            bitmap[index] |= 1UL << bit;
+    }
+
+    printf ("#define INTERRUPTS_COUNT %d\n", count);
+    printf("#define INTERRUPTS_BITMAP {\t");
+    for(int i = 0; i < 64; i++)
+    {
+        if(i && i % 4 == 0)
+            printf(" \\\n\t\t\t\t\t\t");
+        if(i != 63)
+            printf("0x%x, ", bitmap[i]);
+        else printf("0x%x }\n", bitmap[i]);
+    }
+
+}

src/arch/tricore/arch.mk

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+## SPDX-License-Identifier: Apache-2.0
+## Copyright (c) Bao Project and Contributors. All rights reserved.
+
+CROSS_COMPILE ?= tricore-elf-
+
+clang_arch_target:=tricore-unknown-unknown-elf
+
+arch-cppflags+=
+arch-ldflags=
+
+arch_mem_prot:=mpu
+plat_mem:=non_unified
+PAGE_SIZE:=64
+mmio_slave_side_prot:=y

src/arch/tricore/asm_defs.c

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+/**
+ * SPDX-License-Identifier: Apache-2.0
+ * Copyright (c) Bao Project and Contributors. All rights reserved.
+ */
+
+#include <bao.h>
+#include <cpu.h>
+#include <vm.h>
+#include <platform.h>
+
+__attribute__((used)) static void cpu_defines(void)
+{
+    DEFINE_SIZE(CPU_SIZE, struct cpu);
+
+    DEFINE_OFFSET(CPU_STACK_OFF, struct cpu, stack);
+    DEFINE_SIZE(CPU_STACK_SIZE, ((struct cpu*)NULL)->stack);
+
+    DEFINE_OFFSET(CPU_VCPU_OFF, struct cpu, vcpu);
+}
+
+__attribute__((used)) static void vcpu_defines(void)
+{
+    DEFINE_OFFSET(VCPU_REGS_OFF, struct vcpu, regs);
+    DEFINE_OFFSET(VCPU_VM_OFF, struct vcpu, vm);
+    DEFINE_OFFSET(VCPU_REGS_LOWER_CTX_OFF, struct vcpu, regs.lower_ctx);
+    DEFINE_OFFSET(REGS_A0_OFF, struct arch_regs, a0);
+    DEFINE_OFFSET(REGS_A1_OFF, struct arch_regs, a1);
+    DEFINE_OFFSET(REGS_A8_OFF, struct arch_regs, a8);
+    DEFINE_OFFSET(REGS_A9_OFF, struct arch_regs, a9);
+}
+
+__attribute__((used)) static void platform_defines(void) { }