[qemu.git] / disas.c

/* General "disassemble this chunk" code.  Used for debugging. */
#include "config.h"
#include "disas/bfd.h"
#include "elf.h"
#include <errno.h>

#include "cpu.h"
#include "disas/disas.h"

typedef struct CPUDebug {
    struct disassemble_info info;
    CPUArchState *env;
} CPUDebug;

/* Filled in by elfload.c.  Simplistic, but will do for now. */
struct syminfo *syminfos = NULL;

/* Get LENGTH bytes from info's buffer, at target address memaddr.
   Transfer them to myaddr.  */
int
buffer_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length,
                   struct disassemble_info *info)
{
    if (memaddr < info->buffer_vma
        || memaddr + length > info->buffer_vma + info->buffer_length)
        /* Out of bounds.  Use EIO because GDB uses it.  */
        return EIO;
    memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length);
    return 0;
}

/* Get LENGTH bytes from info's buffer, at target address memaddr.
   Transfer them to myaddr.  */
static int
target_read_memory (bfd_vma memaddr,
                    bfd_byte *myaddr,
                    int length,
                    struct disassemble_info *info)
{
    CPUDebug *s = container_of(info, CPUDebug, info);

    cpu_memory_rw_debug(ENV_GET_CPU(s->env), memaddr, myaddr, length, 0);
    return 0;
}

/* Print an error message.  We can assume that this is in response to
   an error return from buffer_read_memory.  */
void
perror_memory (int status, bfd_vma memaddr, struct disassemble_info *info)
{
  if (status != EIO)
    /* Can't happen.  */
    (*info->fprintf_func) (info->stream, "Unknown error %d\n", status);
  else
    /* Actually, address between memaddr and memaddr + len was
       out of bounds.  */
    (*info->fprintf_func) (info->stream,
			   "Address 0x%" PRIx64 " is out of bounds.\n", memaddr);
}

/* This could be in a separate file, to save minuscule amounts of space
   in statically linked executables.  */

/* Just print the address is hex.  This is included for completeness even
   though both GDB and objdump provide their own (to print symbolic
   addresses).  */

void
generic_print_address (bfd_vma addr, struct disassemble_info *info)
{
    (*info->fprintf_func) (info->stream, "0x%" PRIx64, addr);
}

/* Print address in hex, truncated to the width of a target virtual address. */
static void
generic_print_target_address(bfd_vma addr, struct disassemble_info *info)
{
    uint64_t mask = ~0ULL >> (64 - TARGET_VIRT_ADDR_SPACE_BITS);
    generic_print_address(addr & mask, info);
}

/* Print address in hex, truncated to the width of a host virtual address. */
static void
generic_print_host_address(bfd_vma addr, struct disassemble_info *info)
{
    uint64_t mask = ~0ULL >> (64 - (sizeof(void *) * 8));
    generic_print_address(addr & mask, info);
}

/* Just return the given address.  */

int
generic_symbol_at_address (bfd_vma addr, struct disassemble_info *info)
{
  return 1;
}

bfd_vma bfd_getl64 (const bfd_byte *addr)
{
  unsigned long long v;

  v = (unsigned long long) addr[0];
  v |= (unsigned long long) addr[1] << 8;
  v |= (unsigned long long) addr[2] << 16;
  v |= (unsigned long long) addr[3] << 24;
  v |= (unsigned long long) addr[4] << 32;
  v |= (unsigned long long) addr[5] << 40;
  v |= (unsigned long long) addr[6] << 48;
  v |= (unsigned long long) addr[7] << 56;
  return (bfd_vma) v;
}

bfd_vma bfd_getl32 (const bfd_byte *addr)
{
  unsigned long v;

  v = (unsigned long) addr[0];
  v |= (unsigned long) addr[1] << 8;
  v |= (unsigned long) addr[2] << 16;
  v |= (unsigned long) addr[3] << 24;
  return (bfd_vma) v;
}

bfd_vma bfd_getb32 (const bfd_byte *addr)
{
  unsigned long v;

  v = (unsigned long) addr[0] << 24;
  v |= (unsigned long) addr[1] << 16;
  v |= (unsigned long) addr[2] << 8;
  v |= (unsigned long) addr[3];
  return (bfd_vma) v;
}

bfd_vma bfd_getl16 (const bfd_byte *addr)
{
  unsigned long v;

  v = (unsigned long) addr[0];
  v |= (unsigned long) addr[1] << 8;
  return (bfd_vma) v;
}

bfd_vma bfd_getb16 (const bfd_byte *addr)
{
  unsigned long v;

  v = (unsigned long) addr[0] << 24;
  v |= (unsigned long) addr[1] << 16;
  return (bfd_vma) v;
}

#ifdef TARGET_ARM
static int
print_insn_thumb1(bfd_vma pc, disassemble_info *info)
{
  return print_insn_arm(pc | 1, info);
}
#endif

static int print_insn_objdump(bfd_vma pc, disassemble_info *info,
                              const char *prefix)
{
    int i, n = info->buffer_length;
    uint8_t *buf = g_malloc(n);

    info->read_memory_func(pc, buf, n, info);

    for (i = 0; i < n; ++i) {
        if (i % 32 == 0) {
            info->fprintf_func(info->stream, "\n%s: ", prefix);
        }
        info->fprintf_func(info->stream, "%02x", buf[i]);
    }

    g_free(buf);
    return n;
}

static int print_insn_od_host(bfd_vma pc, disassemble_info *info)
{
    return print_insn_objdump(pc, info, "OBJD-H");
}

static int print_insn_od_target(bfd_vma pc, disassemble_info *info)
{
    return print_insn_objdump(pc, info, "OBJD-T");
}

/* Disassemble this for me please... (debugging). 'flags' has the following
   values:
    i386 - 1 means 16 bit code, 2 means 64 bit code
    arm  - bit 0 = thumb, bit 1 = reverse endian
    ppc  - nonzero means little endian
    other targets - unused
 */
void target_disas(FILE *out, CPUArchState *env, target_ulong code,
                  target_ulong size, int flags)
{
    target_ulong pc;
    int count;
    CPUDebug s;
    int (*print_insn)(bfd_vma pc, disassemble_info *info) = NULL;

    INIT_DISASSEMBLE_INFO(s.info, out, fprintf);

    s.env = env;
    s.info.read_memory_func = target_read_memory;
    s.info.buffer_vma = code;
    s.info.buffer_length = size;
    s.info.print_address_func = generic_print_target_address;

#ifdef TARGET_WORDS_BIGENDIAN
    s.info.endian = BFD_ENDIAN_BIG;
#else
    s.info.endian = BFD_ENDIAN_LITTLE;
#endif
#if defined(TARGET_I386)
    if (flags == 2) {
        s.info.mach = bfd_mach_x86_64;
    } else if (flags == 1) {
        s.info.mach = bfd_mach_i386_i8086;
    } else {
        s.info.mach = bfd_mach_i386_i386;
    }
    print_insn = print_insn_i386;
#elif defined(TARGET_ARM)
    if (flags & 1) {
        print_insn = print_insn_thumb1;
    } else {
        print_insn = print_insn_arm;
    }
    if (flags & 2) {
#ifdef TARGET_WORDS_BIGENDIAN
        s.info.endian = BFD_ENDIAN_LITTLE;
#else
        s.info.endian = BFD_ENDIAN_BIG;
#endif
    }
#elif defined(TARGET_SPARC)
    print_insn = print_insn_sparc;
#ifdef TARGET_SPARC64
    s.info.mach = bfd_mach_sparc_v9b;
#endif
#elif defined(TARGET_PPC)
    if (flags >> 16) {
        s.info.endian = BFD_ENDIAN_LITTLE;
    }
    if (flags & 0xFFFF) {
        /* If we have a precise definitions of the instructions set, use it */
        s.info.mach = flags & 0xFFFF;
    } else {
#ifdef TARGET_PPC64
        s.info.mach = bfd_mach_ppc64;
#else
        s.info.mach = bfd_mach_ppc;
#endif
    }
    s.info.disassembler_options = (char *)"any";
    print_insn = print_insn_ppc;
#elif defined(TARGET_M68K)
    print_insn = print_insn_m68k;
#elif defined(TARGET_MIPS)
#ifdef TARGET_WORDS_BIGENDIAN
    print_insn = print_insn_big_mips;
#else
    print_insn = print_insn_little_mips;
#endif
#elif defined(TARGET_SH4)
    s.info.mach = bfd_mach_sh4;
    print_insn = print_insn_sh;
#elif defined(TARGET_ALPHA)
    s.info.mach = bfd_mach_alpha_ev6;
    print_insn = print_insn_alpha;
#elif defined(TARGET_CRIS)
    if (flags != 32) {
        s.info.mach = bfd_mach_cris_v0_v10;
        print_insn = print_insn_crisv10;
    } else {
        s.info.mach = bfd_mach_cris_v32;
        print_insn = print_insn_crisv32;
    }
#elif defined(TARGET_S390X)
    s.info.mach = bfd_mach_s390_64;
    print_insn = print_insn_s390;
#elif defined(TARGET_MICROBLAZE)
    s.info.mach = bfd_arch_microblaze;
    print_insn = print_insn_microblaze;
#elif defined(TARGET_MOXIE)
    s.info.mach = bfd_arch_moxie;
    print_insn = print_insn_moxie;
#elif defined(TARGET_LM32)
    s.info.mach = bfd_mach_lm32;
    print_insn = print_insn_lm32;
#endif
    if (print_insn == NULL) {
        print_insn = print_insn_od_target;
    }

    for (pc = code; size > 0; pc += count, size -= count) {
	fprintf(out, "0x" TARGET_FMT_lx ":  ", pc);
	count = print_insn(pc, &s.info);
#if 0
        {
            int i;
            uint8_t b;
            fprintf(out, " {");
            for(i = 0; i < count; i++) {
                target_read_memory(pc + i, &b, 1, &s.info);
                fprintf(out, " %02x", b);
            }
            fprintf(out, " }");
        }
#endif
	fprintf(out, "\n");
	if (count < 0)
	    break;
        if (size < count) {
            fprintf(out,
                    "Disassembler disagrees with translator over instruction "
                    "decoding\n"
                    "Please report this to qemu-devel@nongnu.org\n");
            break;
        }
    }
}

/* Disassemble this for me please... (debugging). */
void disas(FILE *out, void *code, unsigned long size)
{
    uintptr_t pc;
    int count;
    CPUDebug s;
    int (*print_insn)(bfd_vma pc, disassemble_info *info) = NULL;

    INIT_DISASSEMBLE_INFO(s.info, out, fprintf);
    s.info.print_address_func = generic_print_host_address;

    s.info.buffer = code;
    s.info.buffer_vma = (uintptr_t)code;
    s.info.buffer_length = size;

#ifdef HOST_WORDS_BIGENDIAN
    s.info.endian = BFD_ENDIAN_BIG;
#else
    s.info.endian = BFD_ENDIAN_LITTLE;
#endif
#if defined(CONFIG_TCG_INTERPRETER)
    print_insn = print_insn_tci;
#elif defined(__i386__)
    s.info.mach = bfd_mach_i386_i386;
    print_insn = print_insn_i386;
#elif defined(__x86_64__)
    s.info.mach = bfd_mach_x86_64;
    print_insn = print_insn_i386;
#elif defined(_ARCH_PPC)
    s.info.disassembler_options = (char *)"any";
    print_insn = print_insn_ppc;
#elif defined(__alpha__)
    print_insn = print_insn_alpha;
#elif defined(__sparc__)
    print_insn = print_insn_sparc;
    s.info.mach = bfd_mach_sparc_v9b;
#elif defined(__arm__)
    print_insn = print_insn_arm;
#elif defined(__MIPSEB__)
    print_insn = print_insn_big_mips;
#elif defined(__MIPSEL__)
    print_insn = print_insn_little_mips;
#elif defined(__m68k__)
    print_insn = print_insn_m68k;
#elif defined(__s390__)
    print_insn = print_insn_s390;
#elif defined(__hppa__)
    print_insn = print_insn_hppa;
#elif defined(__ia64__)
    print_insn = print_insn_ia64;
#endif
    if (print_insn == NULL) {
        print_insn = print_insn_od_host;
    }
    for (pc = (uintptr_t)code; size > 0; pc += count, size -= count) {
        fprintf(out, "0x%08" PRIxPTR ":  ", pc);
        count = print_insn(pc, &s.info);
	fprintf(out, "\n");
	if (count < 0)
	    break;
    }
}

/* Look up symbol for debugging purpose.  Returns "" if unknown. */
const char *lookup_symbol(target_ulong orig_addr)
{
    const char *symbol = "";
    struct syminfo *s;

    for (s = syminfos; s; s = s->next) {
        symbol = s->lookup_symbol(s, orig_addr);
        if (symbol[0] != '\0') {
            break;
        }
    }

    return symbol;
}

#if !defined(CONFIG_USER_ONLY)

#include "monitor/monitor.h"

static int monitor_disas_is_physical;

static int
monitor_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length,
                     struct disassemble_info *info)
{
    CPUDebug *s = container_of(info, CPUDebug, info);

    if (monitor_disas_is_physical) {
        cpu_physical_memory_read(memaddr, myaddr, length);
    } else {
        cpu_memory_rw_debug(ENV_GET_CPU(s->env), memaddr, myaddr, length, 0);
    }
    return 0;
}

static int GCC_FMT_ATTR(2, 3)
monitor_fprintf(FILE *stream, const char *fmt, ...)
{
    va_list ap;
    va_start(ap, fmt);
    monitor_vprintf((Monitor *)stream, fmt, ap);
    va_end(ap);
    return 0;
}

void monitor_disas(Monitor *mon, CPUArchState *env,
                   target_ulong pc, int nb_insn, int is_physical, int flags)
{
    int count, i;
    CPUDebug s;
    int (*print_insn)(bfd_vma pc, disassemble_info *info);

    INIT_DISASSEMBLE_INFO(s.info, (FILE *)mon, monitor_fprintf);

    s.env = env;
    monitor_disas_is_physical = is_physical;
    s.info.read_memory_func = monitor_read_memory;
    s.info.print_address_func = generic_print_target_address;

    s.info.buffer_vma = pc;

#ifdef TARGET_WORDS_BIGENDIAN
    s.info.endian = BFD_ENDIAN_BIG;
#else
    s.info.endian = BFD_ENDIAN_LITTLE;
#endif
#if defined(TARGET_I386)
    if (flags == 2) {
        s.info.mach = bfd_mach_x86_64;
    } else if (flags == 1) {
        s.info.mach = bfd_mach_i386_i8086;
    } else {
        s.info.mach = bfd_mach_i386_i386;
    }
    print_insn = print_insn_i386;
#elif defined(TARGET_ARM)
    print_insn = print_insn_arm;
#elif defined(TARGET_ALPHA)
    print_insn = print_insn_alpha;
#elif defined(TARGET_SPARC)
    print_insn = print_insn_sparc;
#ifdef TARGET_SPARC64
    s.info.mach = bfd_mach_sparc_v9b;
#endif
#elif defined(TARGET_PPC)
#ifdef TARGET_PPC64
    s.info.mach = bfd_mach_ppc64;
#else
    s.info.mach = bfd_mach_ppc;
#endif
    print_insn = print_insn_ppc;
#elif defined(TARGET_M68K)
    print_insn = print_insn_m68k;
#elif defined(TARGET_MIPS)
#ifdef TARGET_WORDS_BIGENDIAN
    print_insn = print_insn_big_mips;
#else
    print_insn = print_insn_little_mips;
#endif
#elif defined(TARGET_SH4)
    s.info.mach = bfd_mach_sh4;
    print_insn = print_insn_sh;
#elif defined(TARGET_S390X)
    s.info.mach = bfd_mach_s390_64;
    print_insn = print_insn_s390;
#elif defined(TARGET_MOXIE)
    s.info.mach = bfd_arch_moxie;
    print_insn = print_insn_moxie;
#elif defined(TARGET_LM32)
    s.info.mach = bfd_mach_lm32;
    print_insn = print_insn_lm32;
#else
    monitor_printf(mon, "0x" TARGET_FMT_lx
                   ": Asm output not supported on this arch\n", pc);
    return;
#endif

    for(i = 0; i < nb_insn; i++) {
	monitor_printf(mon, "0x" TARGET_FMT_lx ":  ", pc);
        count = print_insn(pc, &s.info);
	monitor_printf(mon, "\n");
	if (count < 0)
	    break;
        pc += count;
    }
}
#endif
Commit	Line	Data
	1	/* General "disassemble this chunk" code. Used for debugging. */
	2	#include "config.h"
	3	#include "disas/bfd.h"
	4	#include "elf.h"
	5	#include <errno.h>
	6
	7	#include "cpu.h"
	8	#include "disas/disas.h"
	9
	10	typedef struct CPUDebug {
	11	struct disassemble_info info;
	12	CPUArchState *env;
	13	} CPUDebug;
	14
	15	/* Filled in by elfload.c. Simplistic, but will do for now. */
	16	struct syminfo *syminfos = NULL;
	17
	18	/* Get LENGTH bytes from info's buffer, at target address memaddr.
	19	Transfer them to myaddr. */
	20	int
	21	buffer_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length,
	22	struct disassemble_info *info)
	23	{
	24	if (memaddr < info->buffer_vma
	25	\|\| memaddr + length > info->buffer_vma + info->buffer_length)
	26	/* Out of bounds. Use EIO because GDB uses it. */
	27	return EIO;
	28	memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length);
	29	return 0;
	30	}
	31
	32	/* Get LENGTH bytes from info's buffer, at target address memaddr.
	33	Transfer them to myaddr. */
	34	static int
	35	target_read_memory (bfd_vma memaddr,
	36	bfd_byte *myaddr,
	37	int length,
	38	struct disassemble_info *info)
	39	{
	40	CPUDebug *s = container_of(info, CPUDebug, info);
	41
	42	cpu_memory_rw_debug(ENV_GET_CPU(s->env), memaddr, myaddr, length, 0);
	43	return 0;
	44	}
	45
	46	/* Print an error message. We can assume that this is in response to
	47	an error return from buffer_read_memory. */
	48	void
	49	perror_memory (int status, bfd_vma memaddr, struct disassemble_info *info)
	50	{
	51	if (status != EIO)
	52	/* Can't happen. */
	53	(*info->fprintf_func) (info->stream, "Unknown error %d\n", status);
	54	else
	55	/* Actually, address between memaddr and memaddr + len was
	56	out of bounds. */
	57	(*info->fprintf_func) (info->stream,
	58	"Address 0x%" PRIx64 " is out of bounds.\n", memaddr);
	59	}
	60
	61	/* This could be in a separate file, to save minuscule amounts of space
	62	in statically linked executables. */
	63
	64	/* Just print the address is hex. This is included for completeness even
	65	though both GDB and objdump provide their own (to print symbolic
	66	addresses). */
	67
	68	void
	69	generic_print_address (bfd_vma addr, struct disassemble_info *info)
	70	{
	71	(*info->fprintf_func) (info->stream, "0x%" PRIx64, addr);
	72	}
	73
	74	/* Print address in hex, truncated to the width of a target virtual address. */
	75	static void
	76	generic_print_target_address(bfd_vma addr, struct disassemble_info *info)
	77	{
	78	uint64_t mask = ~0ULL >> (64 - TARGET_VIRT_ADDR_SPACE_BITS);
	79	generic_print_address(addr & mask, info);
	80	}
	81
	82	/* Print address in hex, truncated to the width of a host virtual address. */
	83	static void
	84	generic_print_host_address(bfd_vma addr, struct disassemble_info *info)
	85	{
	86	uint64_t mask = ~0ULL >> (64 - (sizeof(void ) 8));
	87	generic_print_address(addr & mask, info);
	88	}
	89
	90	/* Just return the given address. */
	91
	92	int
	93	generic_symbol_at_address (bfd_vma addr, struct disassemble_info *info)
	94	{
	95	return 1;
	96	}
	97
	98	bfd_vma bfd_getl64 (const bfd_byte *addr)
	99	{
	100	unsigned long long v;
	101
	102	v = (unsigned long long) addr[0];
	103	v \|= (unsigned long long) addr[1] << 8;
	104	v \|= (unsigned long long) addr[2] << 16;
	105	v \|= (unsigned long long) addr[3] << 24;
	106	v \|= (unsigned long long) addr[4] << 32;
	107	v \|= (unsigned long long) addr[5] << 40;
	108	v \|= (unsigned long long) addr[6] << 48;
	109	v \|= (unsigned long long) addr[7] << 56;
	110	return (bfd_vma) v;
	111	}
	112
	113	bfd_vma bfd_getl32 (const bfd_byte *addr)
	114	{
	115	unsigned long v;
	116
	117	v = (unsigned long) addr[0];
	118	v \|= (unsigned long) addr[1] << 8;
	119	v \|= (unsigned long) addr[2] << 16;
	120	v \|= (unsigned long) addr[3] << 24;
	121	return (bfd_vma) v;
	122	}
	123
	124	bfd_vma bfd_getb32 (const bfd_byte *addr)
	125	{
	126	unsigned long v;
	127
	128	v = (unsigned long) addr[0] << 24;
	129	v \|= (unsigned long) addr[1] << 16;
	130	v \|= (unsigned long) addr[2] << 8;
	131	v \|= (unsigned long) addr[3];
	132	return (bfd_vma) v;
	133	}
	134
	135	bfd_vma bfd_getl16 (const bfd_byte *addr)
	136	{
	137	unsigned long v;
	138
	139	v = (unsigned long) addr[0];
	140	v \|= (unsigned long) addr[1] << 8;
	141	return (bfd_vma) v;
	142	}
	143
	144	bfd_vma bfd_getb16 (const bfd_byte *addr)
	145	{
	146	unsigned long v;
	147
	148	v = (unsigned long) addr[0] << 24;
	149	v \|= (unsigned long) addr[1] << 16;
	150	return (bfd_vma) v;
	151	}
	152
	153	#ifdef TARGET_ARM
	154	static int
	155	print_insn_thumb1(bfd_vma pc, disassemble_info *info)
	156	{
	157	return print_insn_arm(pc \| 1, info);
	158	}
	159	#endif
	160
	161	static int print_insn_objdump(bfd_vma pc, disassemble_info *info,
	162	const char *prefix)
	163	{
	164	int i, n = info->buffer_length;
	165	uint8_t *buf = g_malloc(n);
	166
	167	info->read_memory_func(pc, buf, n, info);
	168
	169	for (i = 0; i < n; ++i) {
	170	if (i % 32 == 0) {
	171	info->fprintf_func(info->stream, "\n%s: ", prefix);
	172	}
	173	info->fprintf_func(info->stream, "%02x", buf[i]);
	174	}
	175
	176	g_free(buf);
	177	return n;
	178	}
	179
	180	static int print_insn_od_host(bfd_vma pc, disassemble_info *info)
	181	{
	182	return print_insn_objdump(pc, info, "OBJD-H");
	183	}
	184
	185	static int print_insn_od_target(bfd_vma pc, disassemble_info *info)
	186	{
	187	return print_insn_objdump(pc, info, "OBJD-T");
	188	}
	189
	190	/* Disassemble this for me please... (debugging). 'flags' has the following
	191	values:
	192	i386 - 1 means 16 bit code, 2 means 64 bit code
	193	arm - bit 0 = thumb, bit 1 = reverse endian
	194	ppc - nonzero means little endian
	195	other targets - unused
	196	*/
	197	void target_disas(FILE out, CPUArchState env, target_ulong code,
	198	target_ulong size, int flags)
	199	{
	200	target_ulong pc;
	201	int count;
	202	CPUDebug s;
	203	int (print_insn)(bfd_vma pc, disassemble_info info) = NULL;
	204
	205	INIT_DISASSEMBLE_INFO(s.info, out, fprintf);
	206
	207	s.env = env;
	208	s.info.read_memory_func = target_read_memory;
	209	s.info.buffer_vma = code;
	210	s.info.buffer_length = size;
	211	s.info.print_address_func = generic_print_target_address;
	212
	213	#ifdef TARGET_WORDS_BIGENDIAN
	214	s.info.endian = BFD_ENDIAN_BIG;
	215	#else
	216	s.info.endian = BFD_ENDIAN_LITTLE;
	217	#endif
	218	#if defined(TARGET_I386)
	219	if (flags == 2) {
	220	s.info.mach = bfd_mach_x86_64;
	221	} else if (flags == 1) {
	222	s.info.mach = bfd_mach_i386_i8086;
	223	} else {
	224	s.info.mach = bfd_mach_i386_i386;
	225	}
	226	print_insn = print_insn_i386;
	227	#elif defined(TARGET_ARM)
	228	if (flags & 1) {
	229	print_insn = print_insn_thumb1;
	230	} else {
	231	print_insn = print_insn_arm;
	232	}
	233	if (flags & 2) {
	234	#ifdef TARGET_WORDS_BIGENDIAN
	235	s.info.endian = BFD_ENDIAN_LITTLE;
	236	#else
	237	s.info.endian = BFD_ENDIAN_BIG;
	238	#endif
	239	}
	240	#elif defined(TARGET_SPARC)
	241	print_insn = print_insn_sparc;
	242	#ifdef TARGET_SPARC64
	243	s.info.mach = bfd_mach_sparc_v9b;
	244	#endif
	245	#elif defined(TARGET_PPC)
	246	if (flags >> 16) {
	247	s.info.endian = BFD_ENDIAN_LITTLE;
	248	}
	249	if (flags & 0xFFFF) {
	250	/* If we have a precise definitions of the instructions set, use it */
	251	s.info.mach = flags & 0xFFFF;
	252	} else {
	253	#ifdef TARGET_PPC64
	254	s.info.mach = bfd_mach_ppc64;
	255	#else
	256	s.info.mach = bfd_mach_ppc;
	257	#endif
	258	}
	259	s.info.disassembler_options = (char *)"any";
	260	print_insn = print_insn_ppc;
	261	#elif defined(TARGET_M68K)
	262	print_insn = print_insn_m68k;
	263	#elif defined(TARGET_MIPS)
	264	#ifdef TARGET_WORDS_BIGENDIAN
	265	print_insn = print_insn_big_mips;
	266	#else
	267	print_insn = print_insn_little_mips;
	268	#endif
	269	#elif defined(TARGET_SH4)
	270	s.info.mach = bfd_mach_sh4;
	271	print_insn = print_insn_sh;
	272	#elif defined(TARGET_ALPHA)
	273	s.info.mach = bfd_mach_alpha_ev6;
	274	print_insn = print_insn_alpha;
	275	#elif defined(TARGET_CRIS)
	276	if (flags != 32) {
	277	s.info.mach = bfd_mach_cris_v0_v10;
	278	print_insn = print_insn_crisv10;
	279	} else {
	280	s.info.mach = bfd_mach_cris_v32;
	281	print_insn = print_insn_crisv32;
	282	}
	283	#elif defined(TARGET_S390X)
	284	s.info.mach = bfd_mach_s390_64;
	285	print_insn = print_insn_s390;
	286	#elif defined(TARGET_MICROBLAZE)
	287	s.info.mach = bfd_arch_microblaze;
	288	print_insn = print_insn_microblaze;
	289	#elif defined(TARGET_MOXIE)
	290	s.info.mach = bfd_arch_moxie;
	291	print_insn = print_insn_moxie;
	292	#elif defined(TARGET_LM32)
	293	s.info.mach = bfd_mach_lm32;
	294	print_insn = print_insn_lm32;
	295	#endif
	296	if (print_insn == NULL) {
	297	print_insn = print_insn_od_target;
	298	}
	299
	300	for (pc = code; size > 0; pc += count, size -= count) {
	301	fprintf(out, "0x" TARGET_FMT_lx ": ", pc);
	302	count = print_insn(pc, &s.info);
	303	#if 0
	304	{
	305	int i;
	306	uint8_t b;
	307	fprintf(out, " {");
	308	for(i = 0; i < count; i++) {
	309	target_read_memory(pc + i, &b, 1, &s.info);
	310	fprintf(out, " %02x", b);
	311	}
	312	fprintf(out, " }");
	313	}
	314	#endif
	315	fprintf(out, "\n");
	316	if (count < 0)
	317	break;
	318	if (size < count) {
	319	fprintf(out,
	320	"Disassembler disagrees with translator over instruction "
	321	"decoding\n"
	322	"Please report this to qemu-devel@nongnu.org\n");
	323	break;
	324	}
	325	}
	326	}
	327
	328	/* Disassemble this for me please... (debugging). */
	329	void disas(FILE out, void code, unsigned long size)
	330	{
	331	uintptr_t pc;
	332	int count;
	333	CPUDebug s;
	334	int (print_insn)(bfd_vma pc, disassemble_info info) = NULL;
	335
	336	INIT_DISASSEMBLE_INFO(s.info, out, fprintf);
	337	s.info.print_address_func = generic_print_host_address;
	338
	339	s.info.buffer = code;
	340	s.info.buffer_vma = (uintptr_t)code;
	341	s.info.buffer_length = size;
	342
	343	#ifdef HOST_WORDS_BIGENDIAN
	344	s.info.endian = BFD_ENDIAN_BIG;
	345	#else
	346	s.info.endian = BFD_ENDIAN_LITTLE;
	347	#endif
	348	#if defined(CONFIG_TCG_INTERPRETER)
	349	print_insn = print_insn_tci;
	350	#elif defined(__i386__)
	351	s.info.mach = bfd_mach_i386_i386;
	352	print_insn = print_insn_i386;
	353	#elif defined(__x86_64__)
	354	s.info.mach = bfd_mach_x86_64;
	355	print_insn = print_insn_i386;
	356	#elif defined(_ARCH_PPC)
	357	s.info.disassembler_options = (char *)"any";
	358	print_insn = print_insn_ppc;
	359	#elif defined(__alpha__)
	360	print_insn = print_insn_alpha;
	361	#elif defined(__sparc__)
	362	print_insn = print_insn_sparc;
	363	s.info.mach = bfd_mach_sparc_v9b;
	364	#elif defined(__arm__)
	365	print_insn = print_insn_arm;
	366	#elif defined(__MIPSEB__)
	367	print_insn = print_insn_big_mips;
	368	#elif defined(__MIPSEL__)
	369	print_insn = print_insn_little_mips;
	370	#elif defined(__m68k__)
	371	print_insn = print_insn_m68k;
	372	#elif defined(__s390__)
	373	print_insn = print_insn_s390;
	374	#elif defined(__hppa__)
	375	print_insn = print_insn_hppa;
	376	#elif defined(__ia64__)
	377	print_insn = print_insn_ia64;
	378	#endif
	379	if (print_insn == NULL) {
	380	print_insn = print_insn_od_host;
	381	}
	382	for (pc = (uintptr_t)code; size > 0; pc += count, size -= count) {
	383	fprintf(out, "0x%08" PRIxPTR ": ", pc);
	384	count = print_insn(pc, &s.info);
	385	fprintf(out, "\n");
	386	if (count < 0)
	387	break;
	388	}
	389	}
	390
	391	/* Look up symbol for debugging purpose. Returns "" if unknown. */
	392	const char *lookup_symbol(target_ulong orig_addr)
	393	{
	394	const char *symbol = "";
	395	struct syminfo *s;
	396
	397	for (s = syminfos; s; s = s->next) {
	398	symbol = s->lookup_symbol(s, orig_addr);
	399	if (symbol[0] != '\0') {
	400	break;
	401	}
	402	}
	403
	404	return symbol;
	405	}
	406
	407	#if !defined(CONFIG_USER_ONLY)
	408
	409	#include "monitor/monitor.h"
	410
	411	static int monitor_disas_is_physical;
	412
	413	static int
	414	monitor_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length,
	415	struct disassemble_info *info)
	416	{
	417	CPUDebug *s = container_of(info, CPUDebug, info);
	418
	419	if (monitor_disas_is_physical) {
	420	cpu_physical_memory_read(memaddr, myaddr, length);
	421	} else {
	422	cpu_memory_rw_debug(ENV_GET_CPU(s->env), memaddr, myaddr, length, 0);
	423	}
	424	return 0;
	425	}
	426
	427	static int GCC_FMT_ATTR(2, 3)
	428	monitor_fprintf(FILE stream, const char fmt, ...)
	429	{
	430	va_list ap;
	431	va_start(ap, fmt);
	432	monitor_vprintf((Monitor *)stream, fmt, ap);
	433	va_end(ap);
	434	return 0;
	435	}
	436
	437	void monitor_disas(Monitor mon, CPUArchState env,
	438	target_ulong pc, int nb_insn, int is_physical, int flags)
	439	{
	440	int count, i;
	441	CPUDebug s;
	442	int (print_insn)(bfd_vma pc, disassemble_info info);
	443
	444	INIT_DISASSEMBLE_INFO(s.info, (FILE *)mon, monitor_fprintf);
	445
	446	s.env = env;
	447	monitor_disas_is_physical = is_physical;
	448	s.info.read_memory_func = monitor_read_memory;
	449	s.info.print_address_func = generic_print_target_address;
	450
	451	s.info.buffer_vma = pc;
	452
	453	#ifdef TARGET_WORDS_BIGENDIAN
	454	s.info.endian = BFD_ENDIAN_BIG;
	455	#else
	456	s.info.endian = BFD_ENDIAN_LITTLE;
	457	#endif
	458	#if defined(TARGET_I386)
	459	if (flags == 2) {
	460	s.info.mach = bfd_mach_x86_64;
	461	} else if (flags == 1) {
	462	s.info.mach = bfd_mach_i386_i8086;
	463	} else {
	464	s.info.mach = bfd_mach_i386_i386;
	465	}
	466	print_insn = print_insn_i386;
	467	#elif defined(TARGET_ARM)
	468	print_insn = print_insn_arm;
	469	#elif defined(TARGET_ALPHA)
	470	print_insn = print_insn_alpha;
	471	#elif defined(TARGET_SPARC)
	472	print_insn = print_insn_sparc;
	473	#ifdef TARGET_SPARC64
	474	s.info.mach = bfd_mach_sparc_v9b;
	475	#endif
	476	#elif defined(TARGET_PPC)
	477	#ifdef TARGET_PPC64
	478	s.info.mach = bfd_mach_ppc64;
	479	#else
	480	s.info.mach = bfd_mach_ppc;
	481	#endif
	482	print_insn = print_insn_ppc;
	483	#elif defined(TARGET_M68K)
	484	print_insn = print_insn_m68k;
	485	#elif defined(TARGET_MIPS)
	486	#ifdef TARGET_WORDS_BIGENDIAN
	487	print_insn = print_insn_big_mips;
	488	#else
	489	print_insn = print_insn_little_mips;
	490	#endif
	491	#elif defined(TARGET_SH4)
	492	s.info.mach = bfd_mach_sh4;
	493	print_insn = print_insn_sh;
	494	#elif defined(TARGET_S390X)
	495	s.info.mach = bfd_mach_s390_64;
	496	print_insn = print_insn_s390;
	497	#elif defined(TARGET_MOXIE)
	498	s.info.mach = bfd_arch_moxie;
	499	print_insn = print_insn_moxie;
	500	#elif defined(TARGET_LM32)
	501	s.info.mach = bfd_mach_lm32;
	502	print_insn = print_insn_lm32;
	503	#else
	504	monitor_printf(mon, "0x" TARGET_FMT_lx
	505	": Asm output not supported on this arch\n", pc);
	506	return;
	507	#endif
	508
	509	for(i = 0; i < nb_insn; i++) {
	510	monitor_printf(mon, "0x" TARGET_FMT_lx ": ", pc);
	511	count = print_insn(pc, &s.info);
	512	monitor_printf(mon, "\n");
	513	if (count < 0)
	514	break;
	515	pc += count;
	516	}
	517	}
	518	#endif