diff options
| -rw-r--r-- | target-ppc/cpu-qom.h | 2 | ||||
| -rw-r--r-- | target-ppc/gdbstub.c | 137 | ||||
| -rw-r--r-- | target-ppc/translate_init.c | 8 |
3 files changed, 147 insertions, 0 deletions
diff --git a/target-ppc/cpu-qom.h b/target-ppc/cpu-qom.h index 13c7031265..f1f0a52998 100644 --- a/target-ppc/cpu-qom.h +++ b/target-ppc/cpu-qom.h @@ -119,7 +119,9 @@ void ppc_cpu_dump_statistics(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, int flags); hwaddr ppc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); int ppc_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg); +int ppc_cpu_gdb_read_register_apple(CPUState *cpu, uint8_t *buf, int reg); int ppc_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); +int ppc_cpu_gdb_write_register_apple(CPUState *cpu, uint8_t *buf, int reg); int ppc64_cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu, void *opaque); int ppc64_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cs, diff --git a/target-ppc/gdbstub.c b/target-ppc/gdbstub.c index 381a3c7e31..694d303e19 100644 --- a/target-ppc/gdbstub.c +++ b/target-ppc/gdbstub.c @@ -21,6 +21,31 @@ #include "qemu-common.h" #include "exec/gdbstub.h" +static int ppc_gdb_register_len_apple(int n) +{ + switch (n) { + case 0 ... 31: + /* gprs */ + return 8; + case 32 ... 63: + /* fprs */ + return 8; + case 64 ... 95: + return 16; + case 64+32: /* nip */ + case 65+32: /* msr */ + case 67+32: /* lr */ + case 68+32: /* ctr */ + case 69+32: /* xer */ + case 70+32: /* fpscr */ + return 8; + case 66+32: /* cr */ + return 4; + default: + return 0; + } +} + static int ppc_gdb_register_len(int n) { switch (n) { @@ -132,6 +157,65 @@ int ppc_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) return r; } +int ppc_cpu_gdb_read_register_apple(CPUState *cs, uint8_t *mem_buf, int n) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + CPUPPCState *env = &cpu->env; + int r = ppc_gdb_register_len_apple(n); + + if (!r) { + return r; + } + + if (n < 32) { + /* gprs */ + gdb_get_reg64(mem_buf, env->gpr[n]); + } else if (n < 64) { + /* fprs */ + stfq_p(mem_buf, env->fpr[n-32]); + } else if (n < 96) { + /* Altivec */ + stq_p(mem_buf, n - 64); + stq_p(mem_buf + 8, 0); + } else { + switch (n) { + case 64 + 32: + gdb_get_reg64(mem_buf, env->nip); + break; + case 65 + 32: + gdb_get_reg64(mem_buf, env->msr); + break; + case 66 + 32: + { + uint32_t cr = 0; + int i; + for (i = 0; i < 8; i++) { + cr |= env->crf[i] << (32 - ((i + 1) * 4)); + } + gdb_get_reg32(mem_buf, cr); + break; + } + case 67 + 32: + gdb_get_reg64(mem_buf, env->lr); + break; + case 68 + 32: + gdb_get_reg64(mem_buf, env->ctr); + break; + case 69 + 32: + gdb_get_reg64(mem_buf, env->xer); + break; + case 70 + 32: + gdb_get_reg64(mem_buf, env->fpscr); + break; + } + } + if (msr_le) { + /* If cpu is in LE mode, convert memory contents to LE. */ + ppc_gdb_swap_register(mem_buf, n, r); + } + return r; +} + int ppc_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) { PowerPCCPU *cpu = POWERPC_CPU(cs); @@ -185,3 +269,56 @@ int ppc_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) } return r; } +int ppc_cpu_gdb_write_register_apple(CPUState *cs, uint8_t *mem_buf, int n) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + CPUPPCState *env = &cpu->env; + int r = ppc_gdb_register_len_apple(n); + + if (!r) { + return r; + } + if (msr_le) { + /* If cpu is in LE mode, convert memory contents to LE. */ + ppc_gdb_swap_register(mem_buf, n, r); + } + if (n < 32) { + /* gprs */ + env->gpr[n] = ldq_p(mem_buf); + } else if (n < 64) { + /* fprs */ + env->fpr[n-32] = ldfq_p(mem_buf); + } else { + switch (n) { + case 64 + 32: + env->nip = ldq_p(mem_buf); + break; + case 65 + 32: + ppc_store_msr(env, ldq_p(mem_buf)); + break; + case 66 + 32: + { + uint32_t cr = ldl_p(mem_buf); + int i; + for (i = 0; i < 8; i++) { + env->crf[i] = (cr >> (32 - ((i + 1) * 4))) & 0xF; + } + break; + } + case 67 + 32: + env->lr = ldq_p(mem_buf); + break; + case 68 + 32: + env->ctr = ldq_p(mem_buf); + break; + case 69 + 32: + env->xer = ldq_p(mem_buf); + break; + case 70 + 32: + /* fpscr */ + store_fpscr(env, ldq_p(mem_buf), 0xffffffff); + break; + } + } + return r; +} diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c index 85581c9537..594f7ac8d1 100644 --- a/target-ppc/translate_init.c +++ b/target-ppc/translate_init.c @@ -34,6 +34,7 @@ //#define PPC_DUMP_CPU //#define PPC_DEBUG_SPR //#define PPC_DUMP_SPR_ACCESSES +/* #define USE_APPLE_GDB */ /* For user-mode emulation, we don't emulate any IRQ controller */ #if defined(CONFIG_USER_ONLY) @@ -9667,6 +9668,13 @@ static void ppc_cpu_class_init(ObjectClass *oc, void *data) #endif cc->gdb_num_core_regs = 71; + +#ifdef USE_APPLE_GDB + cc->gdb_read_register = ppc_cpu_gdb_read_register_apple; + cc->gdb_write_register = ppc_cpu_gdb_write_register_apple; + cc->gdb_num_core_regs = 71 + 32; +#endif + #if defined(TARGET_PPC64) cc->gdb_core_xml_file = "power64-core.xml"; #else |