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Signed-off-by: Jiajie Chen Reviewed-by: Richard Henderson Signed-off-by: Song Gao Message-ID: <20230817093121.1053890-4-gaosong@loongson.cn> [PMD: Rebased, set gdb_num_core_regs] Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- configs/targets/loongarch64-softmmu.mak | 2 +- target/loongarch/cpu.c | 10 ++++++ target/loongarch/gdbstub.c | 32 ++++++++++++++---- gdb-xml/loongarch-base32.xml | 45 +++++++++++++++++++++++++ 4 files changed, 81 insertions(+), 8 deletions(-) create mode 100644 gdb-xml/loongarch-base32.xml diff --git a/configs/targets/loongarch64-softmmu.mak b/configs/targets/loon= garch64-softmmu.mak index 9abc99056f..f23780fdd8 100644 --- a/configs/targets/loongarch64-softmmu.mak +++ b/configs/targets/loongarch64-softmmu.mak @@ -1,5 +1,5 @@ TARGET_ARCH=3Dloongarch64 TARGET_BASE_ARCH=3Dloongarch TARGET_SUPPORTS_MTTCG=3Dy -TARGET_XML_FILES=3D gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml +TARGET_XML_FILES=3D gdb-xml/loongarch-base32.xml gdb-xml/loongarch-base64.= xml gdb-xml/loongarch-fpu.xml TARGET_NEED_FDT=3Dy diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index 556419f159..822f2a72e5 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -726,8 +726,18 @@ static void loongarch_cpu_class_init(ObjectClass *c, v= oid *data) #endif } =20 +static gchar *loongarch32_gdb_arch_name(CPUState *cs) +{ + return g_strdup("loongarch32"); +} + static void loongarch32_cpu_class_init(ObjectClass *c, void *data) { + CPUClass *cc =3D CPU_CLASS(c); + + cc->gdb_num_core_regs =3D 35; + cc->gdb_core_xml_file =3D "loongarch-base32.xml"; + cc->gdb_arch_name =3D loongarch32_gdb_arch_name; } =20 static gchar *loongarch64_gdb_arch_name(CPUState *cs) diff --git a/target/loongarch/gdbstub.c b/target/loongarch/gdbstub.c index 0752fff924..a462e25737 100644 --- a/target/loongarch/gdbstub.c +++ b/target/loongarch/gdbstub.c @@ -34,16 +34,25 @@ int loongarch_cpu_gdb_read_register(CPUState *cs, GByte= Array *mem_buf, int n) { LoongArchCPU *cpu =3D LOONGARCH_CPU(cs); CPULoongArchState *env =3D &cpu->env; + uint64_t val; =20 if (0 <=3D n && n < 32) { - return gdb_get_regl(mem_buf, env->gpr[n]); + val =3D env->gpr[n]; } else if (n =3D=3D 32) { /* orig_a0 */ - return gdb_get_regl(mem_buf, 0); + val =3D 0; } else if (n =3D=3D 33) { - return gdb_get_regl(mem_buf, env->pc); + val =3D env->pc; } else if (n =3D=3D 34) { - return gdb_get_regl(mem_buf, env->CSR_BADV); + val =3D env->CSR_BADV; + } + + if (0 <=3D n && n <=3D 34) { + if (is_la64(env)) { + return gdb_get_reg64(mem_buf, val); + } else { + return gdb_get_reg32(mem_buf, val); + } } return 0; } @@ -52,15 +61,24 @@ int loongarch_cpu_gdb_write_register(CPUState *cs, uint= 8_t *mem_buf, int n) { LoongArchCPU *cpu =3D LOONGARCH_CPU(cs); CPULoongArchState *env =3D &cpu->env; - target_ulong tmp =3D ldtul_p(mem_buf); + target_ulong tmp; + int read_length; int length =3D 0; =20 + if (is_la64(env)) { + tmp =3D ldq_p(mem_buf); + read_length =3D 8; + } else { + tmp =3D ldl_p(mem_buf); + read_length =3D 4; + } + if (0 <=3D n && n < 32) { env->gpr[n] =3D tmp; - length =3D sizeof(target_ulong); + length =3D read_length; } else if (n =3D=3D 33) { env->pc =3D tmp; - length =3D sizeof(target_ulong); + length =3D read_length; } return length; } diff --git a/gdb-xml/loongarch-base32.xml b/gdb-xml/loongarch-base32.xml new file mode 100644 index 0000000000..af47bbd3da --- /dev/null +++ b/gdb-xml/loongarch-base32.xml @@ -0,0 +1,45 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + --=20 2.41.0