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* [PATCH v4] gdb: riscv: Add target description
@ 2021-01-06 20:41 ` Sylvain Pelissier
  0 siblings, 0 replies; 6+ messages in thread
From: Sylvain Pelissier @ 2021-01-06 20:41 UTC (permalink / raw)
  To: qemu-devel
  Cc: Sylvain Pelissier, open list:RISC-V TCG CPUs, Sagar Karandikar,
	Bastian Koppelmann, Bin Meng, Palmer Dabbelt, Alistair Francis

Target description is not currently implemented in RISC-V
architecture. Thus GDB won't set it properly when attached.
The patch implements the target description response.

Signed-off-by: Sylvain Pelissier <sylvain.pelissier@gmail.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---
 target/riscv/cpu.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 254cd83f8b..ed4971978b 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -556,6 +556,18 @@ static Property riscv_cpu_properties[] = {
     DEFINE_PROP_END_OF_LIST(),
 };
 
+static gchar *riscv_gdb_arch_name(CPUState *cs)
+{
+    RISCVCPU *cpu = RISCV_CPU(cs);
+    CPURISCVState *env = &cpu->env;
+
+    if (riscv_cpu_is_32bit(env)) {
+        return g_strdup("riscv:rv32");
+    } else {
+        return g_strdup("riscv:rv64");
+    }
+}
+
 static void riscv_cpu_class_init(ObjectClass *c, void *data)
 {
     RISCVCPUClass *mcc = RISCV_CPU_CLASS(c);
@@ -591,6 +603,7 @@ static void riscv_cpu_class_init(ObjectClass *c, void *data)
     /* For now, mark unmigratable: */
     cc->vmsd = &vmstate_riscv_cpu;
 #endif
+    cc->gdb_arch_name = riscv_gdb_arch_name;
 #ifdef CONFIG_TCG
     cc->tcg_initialize = riscv_translate_init;
     cc->tlb_fill = riscv_cpu_tlb_fill;
-- 
2.25.1



^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2021-01-07 17:14 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2021-01-06 20:41 [PATCH v4] gdb: riscv: Add target description Sylvain Pelissier
2021-01-06 20:41 ` Sylvain Pelissier
2021-01-07  6:55 ` Philippe Mathieu-Daudé
2021-01-07  6:55   ` Philippe Mathieu-Daudé
2021-01-07 17:12 ` Alistair Francis
2021-01-07 17:12   ` Alistair Francis

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