* Authors:
*
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
*
*/
#include "cpu.h"
-#include "cpu-all.h"
+#include "exec/cpu-all.h"
+#include "sysemu/dump.h"
#include "elf.h"
+#include "sysemu/memory_mapping.h"
#ifdef TARGET_X86_64
typedef struct {
char pad3[8];
} x86_64_elf_prstatus;
-static int x86_64_write_elf64_note(write_core_dump_function f,
- CPUArchState *env, int id,
+static int x86_64_write_elf64_note(WriteCoreDumpFunction f,
+ CPUX86State *env, int id,
void *opaque)
{
x86_64_user_regs_struct regs;
char pad3[4];
} x86_elf_prstatus;
-static void x86_fill_elf_prstatus(x86_elf_prstatus *prstatus, CPUArchState *env,
+static void x86_fill_elf_prstatus(x86_elf_prstatus *prstatus, CPUX86State *env,
int id)
{
memset(prstatus, 0, sizeof(x86_elf_prstatus));
prstatus->pid = id;
}
-static int x86_write_elf64_note(write_core_dump_function f, CPUArchState *env,
+static int x86_write_elf64_note(WriteCoreDumpFunction f, CPUX86State *env,
int id, void *opaque)
{
x86_elf_prstatus prstatus;
return 0;
}
-int cpu_write_elf64_note(write_core_dump_function f, CPUArchState *env,
- int cpuid, void *opaque)
+int x86_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cs,
+ int cpuid, void *opaque)
{
+ X86CPU *cpu = X86_CPU(cs);
int ret;
#ifdef TARGET_X86_64
- bool lma = !!(first_cpu->hflags & HF_LMA_MASK);
+ X86CPU *first_x86_cpu = X86_CPU(first_cpu);
+ bool lma = !!(first_x86_cpu->env.hflags & HF_LMA_MASK);
if (lma) {
- ret = x86_64_write_elf64_note(f, env, cpuid, opaque);
+ ret = x86_64_write_elf64_note(f, &cpu->env, cpuid, opaque);
} else {
#endif
- ret = x86_write_elf64_note(f, env, cpuid, opaque);
+ ret = x86_write_elf64_note(f, &cpu->env, cpuid, opaque);
#ifdef TARGET_X86_64
}
#endif
return ret;
}
-int cpu_write_elf32_note(write_core_dump_function f, CPUArchState *env,
- int cpuid, void *opaque)
+int x86_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs,
+ int cpuid, void *opaque)
{
+ X86CPU *cpu = X86_CPU(cs);
x86_elf_prstatus prstatus;
Elf32_Nhdr *note;
char *buf;
const char *name = "CORE";
int ret;
- x86_fill_elf_prstatus(&prstatus, env, cpuid);
+ x86_fill_elf_prstatus(&prstatus, &cpu->env, cpuid);
descsz = sizeof(x86_elf_prstatus);
note_size = ((sizeof(Elf32_Nhdr) + 3) / 4 + (name_size + 3) / 4 +
(descsz + 3) / 4) * 4;
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, CPUX86State *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(WriteCoreDumpFunction f,
+ CPUX86State *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 x86_cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cs,
+ void *opaque)
+{
+ X86CPU *cpu = X86_CPU(cs);
+
+ return cpu_write_qemu_note(f, &cpu->env, opaque, 1);
+}
+
+int x86_cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cs,
+ void *opaque)
+{
+ X86CPU *cpu = X86_CPU(cs);
+
+ return cpu_write_qemu_note(f, &cpu->env, opaque, 0);
+}
+
+int cpu_get_dump_info(ArchDumpInfo *info,
+ const GuestPhysBlockList *guest_phys_blocks)
+{
+ bool lma = false;
+ GuestPhysBlock *block;
+
+#ifdef TARGET_X86_64
+ X86CPU *first_x86_cpu = X86_CPU(first_cpu);
+
+ lma = !!(first_x86_cpu->env.hflags & HF_LMA_MASK);
+#endif
+
+ if (lma) {
+ info->d_machine = EM_X86_64;
+ } else {
+ info->d_machine = EM_386;
+ }
+ info->d_endian = ELFDATA2LSB;
+
+ if (lma) {
+ info->d_class = ELFCLASS64;
+ } else {
+ info->d_class = ELFCLASS32;
+
+ QTAILQ_FOREACH(block, &guest_phys_blocks->head, next) {
+ if (block->target_end > UINT_MAX) {
+ /* The memory size is greater than 4G */
+ info->d_class = ELFCLASS64;
+ break;
+ }
+ }
+ }
+
+ return 0;
+}
+
+ssize_t cpu_get_note_size(int class, int machine, int nr_cpus)
+{
+ int name_size = 5; /* "CORE" or "QEMU" */
+ size_t elf_note_size = 0;
+ size_t qemu_note_size = 0;
+ int elf_desc_size = 0;
+ int qemu_desc_size = 0;
+ int note_head_size;
+
+ if (class == ELFCLASS32) {
+ note_head_size = sizeof(Elf32_Nhdr);
+ } else {
+ note_head_size = sizeof(Elf64_Nhdr);
+ }
+
+ if (machine == EM_386) {
+ elf_desc_size = sizeof(x86_elf_prstatus);
+ }
+#ifdef TARGET_X86_64
+ else {
+ elf_desc_size = sizeof(x86_64_elf_prstatus);
+ }
+#endif
+ qemu_desc_size = sizeof(QEMUCPUState);
+
+ elf_note_size = ((note_head_size + 3) / 4 + (name_size + 3) / 4 +
+ (elf_desc_size + 3) / 4) * 4;
+ qemu_note_size = ((note_head_size + 3) / 4 + (name_size + 3) / 4 +
+ (qemu_desc_size + 3) / 4) * 4;
+
+ return (elf_note_size + qemu_note_size) * nr_cpus;
+}
projects / qemu.git / blobdiff