diff options
Diffstat (limited to 'target-i386/arch_dump.c')
| -rw-r--r-- | target-i386/arch_dump.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/target-i386/arch_dump.c b/target-i386/arch_dump.c index d55c2ce8c7..ddbe20c32a 100644 --- a/target-i386/arch_dump.c +++ b/target-i386/arch_dump.c @@ -231,3 +231,152 @@ int cpu_write_elf32_note(write_core_dump_function f, CPUArchState *env, return 0; } + +/* + * please count up QEMUCPUSTATE_VERSION if you have changed definition of + * QEMUCPUState, and modify the tools using this information accordingly. + */ +#define QEMUCPUSTATE_VERSION (1) + +struct QEMUCPUSegment { + uint32_t selector; + uint32_t limit; + uint32_t flags; + uint32_t pad; + uint64_t base; +}; + +typedef struct QEMUCPUSegment QEMUCPUSegment; + +struct QEMUCPUState { + uint32_t version; + uint32_t size; + uint64_t rax, rbx, rcx, rdx, rsi, rdi, rsp, rbp; + uint64_t r8, r9, r10, r11, r12, r13, r14, r15; + uint64_t rip, rflags; + QEMUCPUSegment cs, ds, es, fs, gs, ss; + QEMUCPUSegment ldt, tr, gdt, idt; + uint64_t cr[5]; +}; + +typedef struct QEMUCPUState QEMUCPUState; + +static void copy_segment(QEMUCPUSegment *d, SegmentCache *s) +{ + d->pad = 0; + d->selector = s->selector; + d->limit = s->limit; + d->flags = s->flags; + d->base = s->base; +} + +static void qemu_get_cpustate(QEMUCPUState *s, CPUArchState *env) +{ + memset(s, 0, sizeof(QEMUCPUState)); + + s->version = QEMUCPUSTATE_VERSION; + s->size = sizeof(QEMUCPUState); + + s->rax = env->regs[R_EAX]; + s->rbx = env->regs[R_EBX]; + s->rcx = env->regs[R_ECX]; + s->rdx = env->regs[R_EDX]; + s->rsi = env->regs[R_ESI]; + s->rdi = env->regs[R_EDI]; + s->rsp = env->regs[R_ESP]; + s->rbp = env->regs[R_EBP]; +#ifdef TARGET_X86_64 + s->r8 = env->regs[8]; + s->r9 = env->regs[9]; + s->r10 = env->regs[10]; + s->r11 = env->regs[11]; + s->r12 = env->regs[12]; + s->r13 = env->regs[13]; + s->r14 = env->regs[14]; + s->r15 = env->regs[15]; +#endif + s->rip = env->eip; + s->rflags = env->eflags; + + copy_segment(&s->cs, &env->segs[R_CS]); + copy_segment(&s->ds, &env->segs[R_DS]); + copy_segment(&s->es, &env->segs[R_ES]); + copy_segment(&s->fs, &env->segs[R_FS]); + copy_segment(&s->gs, &env->segs[R_GS]); + copy_segment(&s->ss, &env->segs[R_SS]); + copy_segment(&s->ldt, &env->ldt); + copy_segment(&s->tr, &env->tr); + copy_segment(&s->gdt, &env->gdt); + copy_segment(&s->idt, &env->idt); + + s->cr[0] = env->cr[0]; + s->cr[1] = env->cr[1]; + s->cr[2] = env->cr[2]; + s->cr[3] = env->cr[3]; + s->cr[4] = env->cr[4]; +} + +static inline int cpu_write_qemu_note(write_core_dump_function f, + CPUArchState *env, + void *opaque, + int type) +{ + QEMUCPUState state; + Elf64_Nhdr *note64; + Elf32_Nhdr *note32; + void *note; + char *buf; + int descsz, note_size, name_size = 5, note_head_size; + const char *name = "QEMU"; + int ret; + + qemu_get_cpustate(&state, env); + + descsz = sizeof(state); + if (type == 0) { + note_head_size = sizeof(Elf32_Nhdr); + } else { + note_head_size = sizeof(Elf64_Nhdr); + } + note_size = ((note_head_size + 3) / 4 + (name_size + 3) / 4 + + (descsz + 3) / 4) * 4; + note = g_malloc(note_size); + + memset(note, 0, note_size); + if (type == 0) { + note32 = note; + note32->n_namesz = cpu_to_le32(name_size); + note32->n_descsz = cpu_to_le32(descsz); + note32->n_type = 0; + } else { + note64 = note; + note64->n_namesz = cpu_to_le32(name_size); + note64->n_descsz = cpu_to_le32(descsz); + note64->n_type = 0; + } + buf = note; + buf += ((note_head_size + 3) / 4) * 4; + memcpy(buf, name, name_size); + buf += ((name_size + 3) / 4) * 4; + memcpy(buf, &state, sizeof(state)); + + ret = f(note, note_size, opaque); + g_free(note); + if (ret < 0) { + return -1; + } + + return 0; +} + +int cpu_write_elf64_qemunote(write_core_dump_function f, CPUArchState *env, + void *opaque) +{ + return cpu_write_qemu_note(f, env, opaque, 1); +} + +int cpu_write_elf32_qemunote(write_core_dump_function f, CPUArchState *env, + void *opaque) +{ + return cpu_write_qemu_note(f, env, opaque, 0); +} |