x86_64 and better i386 support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4394 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2008-05-09 14:40:22 +00:00
parent b6f97c14f5
commit 798085733c

251
gdbstub.c
View File

@ -240,112 +240,173 @@ static int put_packet(GDBState *s, char *buf)
} }
#if defined(TARGET_I386) #if defined(TARGET_I386)
static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
{
int i, fpus;
uint32_t *registers = (uint32_t *)mem_buf;
#ifdef TARGET_X86_64 #ifdef TARGET_X86_64
/* This corresponds with amd64_register_info[] in gdb/amd64-tdep.c */ static const uint8_t gdb_x86_64_regs[16] = {
uint64_t *registers64 = (uint64_t *)mem_buf; R_EAX, R_EBX, R_ECX, R_EDX, R_ESI, R_EDI, R_EBP, R_ESP,
8, 9, 10, 11, 12, 13, 14, 15,
if (env->hflags & HF_CS64_MASK) { };
registers64[0] = tswap64(env->regs[R_EAX]);
registers64[1] = tswap64(env->regs[R_EBX]);
registers64[2] = tswap64(env->regs[R_ECX]);
registers64[3] = tswap64(env->regs[R_EDX]);
registers64[4] = tswap64(env->regs[R_ESI]);
registers64[5] = tswap64(env->regs[R_EDI]);
registers64[6] = tswap64(env->regs[R_EBP]);
registers64[7] = tswap64(env->regs[R_ESP]);
for(i = 8; i < 16; i++) {
registers64[i] = tswap64(env->regs[i]);
}
registers64[16] = tswap64(env->eip);
registers = (uint32_t *)&registers64[17];
registers[0] = tswap32(env->eflags);
registers[1] = tswap32(env->segs[R_CS].selector);
registers[2] = tswap32(env->segs[R_SS].selector);
registers[3] = tswap32(env->segs[R_DS].selector);
registers[4] = tswap32(env->segs[R_ES].selector);
registers[5] = tswap32(env->segs[R_FS].selector);
registers[6] = tswap32(env->segs[R_GS].selector);
/* XXX: convert floats */
for(i = 0; i < 8; i++) {
memcpy(mem_buf + 16 * 8 + 7 * 4 + i * 10, &env->fpregs[i], 10);
}
registers[27] = tswap32(env->fpuc); /* fctrl */
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
registers[28] = tswap32(fpus); /* fstat */
registers[29] = 0; /* ftag */
registers[30] = 0; /* fiseg */
registers[31] = 0; /* fioff */
registers[32] = 0; /* foseg */
registers[33] = 0; /* fooff */
registers[34] = 0; /* fop */
for(i = 0; i < 16; i++) {
memcpy(mem_buf + 16 * 8 + 35 * 4 + i * 16, &env->xmm_regs[i], 16);
}
registers[99] = tswap32(env->mxcsr);
return 8 * 17 + 4 * 7 + 10 * 8 + 4 * 8 + 16 * 16 + 4;
}
#endif #endif
for(i = 0; i < 8; i++) { static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
registers[i] = env->regs[i]; {
} int i, fpus, nb_regs;
registers[8] = env->eip; uint8_t *p;
registers[9] = env->eflags;
registers[10] = env->segs[R_CS].selector;
registers[11] = env->segs[R_SS].selector;
registers[12] = env->segs[R_DS].selector;
registers[13] = env->segs[R_ES].selector;
registers[14] = env->segs[R_FS].selector;
registers[15] = env->segs[R_GS].selector;
/* XXX: convert floats */
for(i = 0; i < 8; i++) {
memcpy(mem_buf + 16 * 4 + i * 10, &env->fpregs[i], 10);
}
registers[36] = env->fpuc;
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
registers[37] = fpus;
registers[38] = 0; /* XXX: convert tags */
registers[39] = 0; /* fiseg */
registers[40] = 0; /* fioff */
registers[41] = 0; /* foseg */
registers[42] = 0; /* fooff */
registers[43] = 0; /* fop */
for(i = 0; i < 16; i++) p = mem_buf;
tswapls(&registers[i]); #ifdef TARGET_X86_64
for(i = 36; i < 44; i++) if (env->hflags & HF_CS64_MASK) {
tswapls(&registers[i]); nb_regs = 16;
return 44 * 4; for(i = 0; i < 16; i++) {
*(uint64_t *)p = tswap64(env->regs[gdb_x86_64_regs[i]]);
p += 8;
}
*(uint64_t *)p = tswap64(env->eip);
p += 8;
} else
#endif
{
nb_regs = 8;
for(i = 0; i < 8; i++) {
*(uint32_t *)p = tswap32(env->regs[i]);
p += 4;
}
*(uint32_t *)p = tswap32(env->eip);
p += 4;
}
*(uint32_t *)p = tswap32(env->eflags);
p += 4;
*(uint32_t *)p = tswap32(env->segs[R_CS].selector);
p += 4;
*(uint32_t *)p = tswap32(env->segs[R_SS].selector);
p += 4;
*(uint32_t *)p = tswap32(env->segs[R_DS].selector);
p += 4;
*(uint32_t *)p = tswap32(env->segs[R_ES].selector);
p += 4;
*(uint32_t *)p = tswap32(env->segs[R_FS].selector);
p += 4;
*(uint32_t *)p = tswap32(env->segs[R_GS].selector);
p += 4;
for(i = 0; i < 8; i++) {
/* XXX: convert floats */
#ifdef USE_X86LDOUBLE
memcpy(p, &env->fpregs[i], 10);
#else
memset(p, 0, 10);
#endif
p += 10;
}
*(uint32_t *)p = tswap32(env->fpuc); /* fctrl */
p += 4;
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
*(uint32_t *)p = tswap32(fpus); /* fstat */
p += 4;
*(uint32_t *)p = 0; /* ftag */
p += 4;
*(uint32_t *)p = 0; /* fiseg */
p += 4;
*(uint32_t *)p = 0; /* fioff */
p += 4;
*(uint32_t *)p = 0; /* foseg */
p += 4;
*(uint32_t *)p = 0; /* fooff */
p += 4;
*(uint32_t *)p = 0; /* fop */
p += 4;
for(i = 0; i < nb_regs; i++) {
*(uint64_t *)p = tswap64(env->xmm_regs[i].XMM_Q(0));
p += 8;
*(uint64_t *)p = tswap64(env->xmm_regs[i].XMM_Q(1));
p += 8;
}
*(uint32_t *)p = tswap32(env->mxcsr);
p += 4;
return p - mem_buf;
}
static inline void cpu_gdb_load_seg(CPUState *env, const uint8_t **pp,
int sreg)
{
const uint8_t *p;
uint32_t sel;
p = *pp;
sel = tswap32(*(uint32_t *)p);
p += 4;
if (sel != env->segs[sreg].selector) {
#if defined(CONFIG_USER_ONLY)
cpu_x86_load_seg(env, sreg, sel);
#else
/* XXX: do it with a debug function which does not raise an
exception */
#endif
}
*pp = p;
} }
static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size) static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
{ {
uint32_t *registers = (uint32_t *)mem_buf; const uint8_t *p = mem_buf;
int i; int i, nb_regs;
uint16_t fpus;
for(i = 0; i < 8; i++) { #ifdef TARGET_X86_64
env->regs[i] = tswapl(registers[i]); if (env->hflags & HF_CS64_MASK) {
} nb_regs = 16;
env->eip = tswapl(registers[8]); for(i = 0; i < 16; i++) {
env->eflags = tswapl(registers[9]); env->regs[gdb_x86_64_regs[i]] = tswap64(*(uint64_t *)p);
#if defined(CONFIG_USER_ONLY) p += 8;
#define LOAD_SEG(index, sreg)\ }
if (tswapl(registers[index]) != env->segs[sreg].selector)\ env->eip = tswap64(*(uint64_t *)p);
cpu_x86_load_seg(env, sreg, tswapl(registers[index])); p += 8;
LOAD_SEG(10, R_CS); } else
LOAD_SEG(11, R_SS);
LOAD_SEG(12, R_DS);
LOAD_SEG(13, R_ES);
LOAD_SEG(14, R_FS);
LOAD_SEG(15, R_GS);
#endif #endif
{
nb_regs = 8;
for(i = 0; i < 8; i++) {
env->regs[i] = tswap32(*(uint32_t *)p);
p += 4;
}
env->eip = tswap32(*(uint32_t *)p);
p += 4;
}
env->eflags = tswap32(*(uint32_t *)p);
p += 4;
cpu_gdb_load_seg(env, &p, R_CS);
cpu_gdb_load_seg(env, &p, R_SS);
cpu_gdb_load_seg(env, &p, R_DS);
cpu_gdb_load_seg(env, &p, R_ES);
cpu_gdb_load_seg(env, &p, R_FS);
cpu_gdb_load_seg(env, &p, R_GS);
/* FPU state */
for(i = 0; i < 8; i++) {
/* XXX: convert floats */
#ifdef USE_X86LDOUBLE
memcpy(&env->fpregs[i], p, 10);
#endif
p += 10;
}
env->fpuc = tswap32(*(uint32_t *)p); /* fctrl */
p += 4;
fpus = tswap32(*(uint32_t *)p);
p += 4;
env->fpstt = (fpus >> 11) & 7;
env->fpus = fpus & ~0x3800;
p += 4 * 6;
if (size >= ((p - mem_buf) + 16 * nb_regs + 4)) {
/* SSE state */
for(i = 0; i < nb_regs; i++) {
env->xmm_regs[i].XMM_Q(0) = tswap64(*(uint64_t *)p);
p += 8;
env->xmm_regs[i].XMM_Q(1) = tswap64(*(uint64_t *)p);
p += 8;
}
env->mxcsr = tswap32(*(uint32_t *)p);
p += 4;
}
} }
#elif defined (TARGET_PPC) #elif defined (TARGET_PPC)