diff options
| author | Jiajie Chen <c@jia.je> | 2023-08-21 14:59:59 +0200 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2023-08-24 11:17:56 +0800 |
| commit | ebda3036e18b84d3e4280f05ac71ad462593e8ac (patch) | |
| tree | fc950f0bec2b4346898d2fa3bce46e4f1c6faa0a /target | |
| parent | 6cbba3e9eb3e55353f23cbd567e508d01b7677e0 (diff) | |
target/loongarch: Add GDB support for loongarch32 mode
GPRs and PC are 32-bit wide in loongarch32 mode.
Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-ID: <20230817093121.1053890-4-gaosong@loongson.cn>
[PMD: Rebased, set gdb_num_core_regs]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230821125959.28666-9-philmd@linaro.org>
Diffstat (limited to 'target')
| -rw-r--r-- | target/loongarch/cpu.c | 10 | ||||
| -rw-r--r-- | target/loongarch/gdbstub.c | 32 |
2 files changed, 35 insertions, 7 deletions
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, void *data) #endif } +static gchar *loongarch32_gdb_arch_name(CPUState *cs) +{ + return g_strdup("loongarch32"); +} + static void loongarch32_cpu_class_init(ObjectClass *c, void *data) { + CPUClass *cc = CPU_CLASS(c); + + cc->gdb_num_core_regs = 35; + cc->gdb_core_xml_file = "loongarch-base32.xml"; + cc->gdb_arch_name = loongarch32_gdb_arch_name; } 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, GByteArray *mem_buf, int n) { LoongArchCPU *cpu = LOONGARCH_CPU(cs); CPULoongArchState *env = &cpu->env; + uint64_t val; if (0 <= n && n < 32) { - return gdb_get_regl(mem_buf, env->gpr[n]); + val = env->gpr[n]; } else if (n == 32) { /* orig_a0 */ - return gdb_get_regl(mem_buf, 0); + val = 0; } else if (n == 33) { - return gdb_get_regl(mem_buf, env->pc); + val = env->pc; } else if (n == 34) { - return gdb_get_regl(mem_buf, env->CSR_BADV); + val = env->CSR_BADV; + } + + if (0 <= n && n <= 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, uint8_t *mem_buf, int n) { LoongArchCPU *cpu = LOONGARCH_CPU(cs); CPULoongArchState *env = &cpu->env; - target_ulong tmp = ldtul_p(mem_buf); + target_ulong tmp; + int read_length; int length = 0; + if (is_la64(env)) { + tmp = ldq_p(mem_buf); + read_length = 8; + } else { + tmp = ldl_p(mem_buf); + read_length = 4; + } + if (0 <= n && n < 32) { env->gpr[n] = tmp; - length = sizeof(target_ulong); + length = read_length; } else if (n == 33) { env->pc = tmp; - length = sizeof(target_ulong); + length = read_length; } return length; } |