diff options
Diffstat (limited to 'target/loongarch')
-rw-r--r-- | target/loongarch/cpu.c | 8 | ||||
-rw-r--r-- | target/loongarch/cpu.h | 18 | ||||
-rw-r--r-- | target/loongarch/gdbstub.c | 43 | ||||
-rw-r--r-- | target/loongarch/internals.h | 3 |
4 files changed, 58 insertions, 14 deletions
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index 1c69a76f2b..941e2772bc 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -661,6 +661,11 @@ static const struct SysemuCPUOps loongarch_sysemu_ops = { }; #endif +static gchar *loongarch_gdb_arch_name(CPUState *cs) +{ + return g_strdup("loongarch64"); +} + static void loongarch_cpu_class_init(ObjectClass *c, void *data) { LoongArchCPUClass *lacc = LOONGARCH_CPU_CLASS(c); @@ -683,9 +688,10 @@ static void loongarch_cpu_class_init(ObjectClass *c, void *data) cc->gdb_read_register = loongarch_cpu_gdb_read_register; cc->gdb_write_register = loongarch_cpu_gdb_write_register; cc->disas_set_info = loongarch_cpu_disas_set_info; - cc->gdb_num_core_regs = 34; + cc->gdb_num_core_regs = 35; cc->gdb_core_xml_file = "loongarch-base64.xml"; cc->gdb_stop_before_watchpoint = true; + cc->gdb_arch_name = loongarch_gdb_arch_name; #ifdef CONFIG_TCG cc->tcg_ops = &loongarch_tcg_ops; diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index a36349df83..dce999aaac 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -47,11 +47,23 @@ FIELD(FCSR0, FLAGS, 16, 5) FIELD(FCSR0, CAUSE, 24, 5) #define GET_FP_CAUSE(REG) FIELD_EX32(REG, FCSR0, CAUSE) -#define SET_FP_CAUSE(REG, V) FIELD_DP32(REG, FCSR0, CAUSE, V) +#define SET_FP_CAUSE(REG, V) \ + do { \ + (REG) = FIELD_DP32(REG, FCSR0, CAUSE, V); \ + } while (0) + #define GET_FP_ENABLES(REG) FIELD_EX32(REG, FCSR0, ENABLES) -#define SET_FP_ENABLES(REG, V) FIELD_DP32(REG, FCSR0, ENABLES, V) +#define SET_FP_ENABLES(REG, V) \ + do { \ + (REG) = FIELD_DP32(REG, FCSR0, ENABLES, V); \ + } while (0) + #define GET_FP_FLAGS(REG) FIELD_EX32(REG, FCSR0, FLAGS) -#define SET_FP_FLAGS(REG, V) FIELD_DP32(REG, FCSR0, FLAGS, V) +#define SET_FP_FLAGS(REG, V) \ + do { \ + (REG) = FIELD_DP32(REG, FCSR0, FLAGS, V); \ + } while (0) + #define UPDATE_FP_FLAGS(REG, V) \ do { \ (REG) |= FIELD_DP32(0, FCSR0, FLAGS, V); \ diff --git a/target/loongarch/gdbstub.c b/target/loongarch/gdbstub.c index 24e126fb2d..a4d1e28e36 100644 --- a/target/loongarch/gdbstub.c +++ b/target/loongarch/gdbstub.c @@ -11,6 +11,24 @@ #include "internals.h" #include "exec/gdbstub.h" +uint64_t read_fcc(CPULoongArchState *env) +{ + uint64_t ret = 0; + + for (int i = 0; i < 8; ++i) { + ret |= (uint64_t)env->cf[i] << (i * 8); + } + + return ret; +} + +void write_fcc(CPULoongArchState *env, uint64_t val) +{ + for (int i = 0; i < 8; ++i) { + env->cf[i] = (val >> (i * 8)) & 1; + } +} + int loongarch_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) { LoongArchCPU *cpu = LOONGARCH_CPU(cs); @@ -19,8 +37,11 @@ int loongarch_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) if (0 <= n && n < 32) { return gdb_get_regl(mem_buf, env->gpr[n]); } else if (n == 32) { - return gdb_get_regl(mem_buf, env->pc); + /* orig_a0 */ + return gdb_get_regl(mem_buf, 0); } else if (n == 33) { + return gdb_get_regl(mem_buf, env->pc); + } else if (n == 34) { return gdb_get_regl(mem_buf, env->CSR_BADV); } return 0; @@ -36,7 +57,7 @@ int loongarch_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) if (0 <= n && n < 32) { env->gpr[n] = tmp; length = sizeof(target_ulong); - } else if (n == 32) { + } else if (n == 33) { env->pc = tmp; length = sizeof(target_ulong); } @@ -48,9 +69,10 @@ static int loongarch_gdb_get_fpu(CPULoongArchState *env, { if (0 <= n && n < 32) { return gdb_get_reg64(mem_buf, env->fpr[n]); - } else if (32 <= n && n < 40) { - return gdb_get_reg8(mem_buf, env->cf[n - 32]); - } else if (n == 40) { + } else if (n == 32) { + uint64_t val = read_fcc(env); + return gdb_get_reg64(mem_buf, val); + } else if (n == 33) { return gdb_get_reg32(mem_buf, env->fcsr0); } return 0; @@ -64,10 +86,11 @@ static int loongarch_gdb_set_fpu(CPULoongArchState *env, if (0 <= n && n < 32) { env->fpr[n] = ldq_p(mem_buf); length = 8; - } else if (32 <= n && n < 40) { - env->cf[n - 32] = ldub_p(mem_buf); - length = 1; - } else if (n == 40) { + } else if (n == 32) { + uint64_t val = ldq_p(mem_buf); + write_fcc(env, val); + length = 8; + } else if (n == 33) { env->fcsr0 = ldl_p(mem_buf); length = 4; } @@ -77,5 +100,5 @@ static int loongarch_gdb_set_fpu(CPULoongArchState *env, void loongarch_cpu_register_gdb_regs_for_features(CPUState *cs) { gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, loongarch_gdb_set_fpu, - 41, "loongarch-fpu64.xml", 0); + 41, "loongarch-fpu.xml", 0); } diff --git a/target/loongarch/internals.h b/target/loongarch/internals.h index ea227362b6..f01635aed6 100644 --- a/target/loongarch/internals.h +++ b/target/loongarch/internals.h @@ -51,6 +51,9 @@ bool loongarch_cpu_tlb_fill(CPUState *cs, vaddr address, int size, hwaddr loongarch_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); #endif /* !CONFIG_USER_ONLY */ +uint64_t read_fcc(CPULoongArchState *env); +void write_fcc(CPULoongArchState *env, uint64_t val); + int loongarch_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n); int loongarch_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n); void loongarch_cpu_register_gdb_regs_for_features(CPUState *cs); |