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Re: [PATCH v4] gdb: riscv: Add target description
From: |
Alistair Francis |
Subject: |
Re: [PATCH v4] gdb: riscv: Add target description |
Date: |
Thu, 7 Jan 2021 09:12:23 -0800 |
On Wed, Jan 6, 2021 at 12:42 PM 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>
> Reviewed-by: Bin Meng <bin.meng@windriver.com>
> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Thanks for addressing all of the comments.
Applied to riscv-to-apply.next
Alistair
> ---
> 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
>
>