Basic support for riscv (eurecom-s3#42)

* Basic support for riscv * Add build of SymQEMU for Risc-V in Dockerfile --------- Co-authored-by: Vlada Logunova <[email protected]>
rmalmain · Mar 20, 2024 · a1ccff8 · a1ccff8
1 parent 000b931
commit a1ccff8
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Showing 3 changed files with 10 additions and 1 deletion.
diff --git a/Dockerfile b/Dockerfile
@@ -32,7 +32,7 @@ RUN ./configure                                                       \
           --disable-opengl                                            \
           --disable-virglrenderer                                     \
           --disable-werror                                            \
-          --target-list=x86_64-linux-user                             \
+          --target-list=x86_64-linux-user,riscv64-linux-user          \ 
           --enable-debug                                              \
           --symcc-source=/symcc                                       \
           --symcc-build=/symcc/build

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
@@ -37,6 +37,9 @@
 #include "tcg/tcg-cpu.h"
 #include "tcg/tcg.h"
 
+#define SymExpr void*
+#include "RuntimeCommon.h"
+
 /* RISC-V CPU definitions */
 static const char riscv_single_letter_exts[] = "IEMAFDQCPVH";
 const uint32_t misa_bits[] = {RVI, RVE, RVM, RVA, RVF, RVD, RVV,
@@ -1213,6 +1216,10 @@ static void riscv_cpu_post_init(Object *obj)
 
 static void riscv_cpu_init(Object *obj)
 {
+    RISCVCPU *cpu = RISCV_CPU(obj);
+    memset(cpu->env_exprs, 0, sizeof(cpu->env_exprs));
+    _sym_register_expression_region(cpu->env_exprs, sizeof(cpu->env_exprs));
+
 #ifndef CONFIG_USER_ONLY
     qdev_init_gpio_in(DEVICE(obj), riscv_cpu_set_irq,
                       IRQ_LOCAL_MAX + IRQ_LOCAL_GUEST_MAX);

diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
@@ -424,6 +424,8 @@ struct ArchCPU {
     CPUState parent_obj;
 
     CPURISCVState env;
+    /* space for symbolic expressions corresponding to env */
+    void *env_exprs[512 + 1];   /* TCG_MAX_TEMPS + 1 (for NULL) */
 
     char *dyn_csr_xml;
     char *dyn_vreg_xml;