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| 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/loongarch/gdbstub.c | |
| parent | 6cbba3e9eb3e55353f23cbd567e508d01b7677e0 (diff) | |
| download | focaccia-qemu-ebda3036e18b84d3e4280f05ac71ad462593e8ac.tar.gz focaccia-qemu-ebda3036e18b84d3e4280f05ac71ad462593e8ac.zip | |
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/loongarch/gdbstub.c')
| -rw-r--r-- | target/loongarch/gdbstub.c | 32 |
1 files changed, 25 insertions, 7 deletions
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; } |