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Re: [PATCH] gdb: riscv: Add target description
From: |
Bin Meng |
Subject: |
Re: [PATCH] gdb: riscv: Add target description |
Date: |
Tue, 29 Dec 2020 12:10:56 +0800 |
On Thu, Dec 24, 2020 at 1:09 AM Sylvain Pelissier
<sylvain.pelissier@gmail.com> wrote:
>
> 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>
> ---
> target/riscv/cpu.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
> index 254cd83f8b..489d66038c 100644
> --- a/target/riscv/cpu.c
> +++ b/target/riscv/cpu.c
> @@ -556,6 +556,15 @@ static Property riscv_cpu_properties[] = {
> DEFINE_PROP_END_OF_LIST(),
> };
>
> +static gchar *riscv_gdb_arch_name(CPUState *cs)
> +{
> + #ifdef TARGET_RISCV64
Use riscv_cpu_is_32bit() instead of #ifdefs
> + return g_strdup("riscv:rv64");
> + #else
> + return g_strdup("riscv:rv32");
> + #endif
> +}
> +
> static void riscv_cpu_class_init(ObjectClass *c, void *data)
> {
> RISCVCPUClass *mcc = RISCV_CPU_CLASS(c);
> @@ -591,6 +600,7 @@ 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;
> --
Regards,
Bin