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gdb: riscv: Add target description 

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>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210106204141.14027-1-sylvain.pelissier@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Sylvain Pelissier 2021-01-06 21:41:41 +01:00 committed by Alistair Francis
parent 465ef47abe
commit edf647864b
1 changed files with 13 additions and 0 deletions
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13
target/riscv/cpu.c
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@ -557,6 +557,18 @@ 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);
@ -592,6 +604,7 @@ 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;