#include "cpu.h"
#include "qemu/sockets.h"
#include "sysemu/kvm.h"
-#include "qemu/bitops.h"
static inline int target_memory_rw_debug(CPUState *cpu, target_ulong addr,
uint8_t *buf, int len, bool is_write)
static GDBState *gdbserver_state;
-/* This is an ugly hack to cope with both new and old gdb.
- If gdb sends qXfer:features:read then assume we're talking to a newish
- gdb that understands target descriptions. */
-static int gdb_has_xml;
+bool gdb_has_xml;
#ifdef CONFIG_USER_ONLY
/* XXX: This is not thread safe. Do we care? */
#ifdef CONFIG_USER_ONLY
s->running_state = 1;
#else
- if (runstate_check(RUN_STATE_GUEST_PANICKED)) {
- runstate_set(RUN_STATE_DEBUG);
- }
if (!runstate_needs_reset()) {
vm_start();
}
return put_packet_binary(s, buf, strlen(buf));
}
-/* The GDB remote protocol transfers values in target byte order. This means
- we can use the raw memory access routines to access the value buffer.
- Conveniently, these also handle the case where the buffer is mis-aligned.
- */
-#define GET_REG8(val) do { \
- stb_p(mem_buf, val); \
- return 1; \
- } while(0)
-#define GET_REG16(val) do { \
- stw_p(mem_buf, val); \
- return 2; \
- } while(0)
-#define GET_REG32(val) do { \
- stl_p(mem_buf, val); \
- return 4; \
- } while(0)
-#define GET_REG64(val) do { \
- stq_p(mem_buf, val); \
- return 8; \
- } while(0)
-
-#if TARGET_LONG_BITS == 64
-#define GET_REGL(val) GET_REG64(val)
-#define ldtul_p(addr) ldq_p(addr)
-#else
-#define GET_REGL(val) GET_REG32(val)
-#define ldtul_p(addr) ldl_p(addr)
-#endif
-
-#if defined(TARGET_I386)
-
-#include "target-i386/gdbstub.c"
-
-#elif defined (TARGET_PPC)
-
-#if defined (TARGET_PPC64)
-#define GDB_CORE_XML "power64-core.xml"
-#else
-#define GDB_CORE_XML "power-core.xml"
-#endif
-
-#include "target-ppc/gdbstub.c"
-
-#elif defined (TARGET_SPARC)
-
-#include "target-sparc/gdbstub.c"
-
-#elif defined (TARGET_ARM)
-
-#define GDB_CORE_XML "arm-core.xml"
-
-#include "target-arm/gdbstub.c"
-
-#elif defined (TARGET_M68K)
-
-#define GDB_CORE_XML "cf-core.xml"
-
-#include "target-m68k/gdbstub.c"
-
-#elif defined (TARGET_MIPS)
-
-#include "target-mips/gdbstub.c"
-
-#elif defined(TARGET_OPENRISC)
-
-#include "target-openrisc/gdbstub.c"
-
-#elif defined (TARGET_SH4)
-
-#include "target-sh4/gdbstub.c"
-
-#elif defined (TARGET_MICROBLAZE)
-
-#include "target-microblaze/gdbstub.c"
-
-#elif defined (TARGET_CRIS)
-
-#include "target-cris/gdbstub.c"
-
-#elif defined (TARGET_ALPHA)
-
-#include "target-alpha/gdbstub.c"
-
-#elif defined (TARGET_S390X)
-
-#include "target-s390x/gdbstub.c"
-
-#elif defined (TARGET_LM32)
-
-#include "target-lm32/gdbstub.c"
-
-#elif defined(TARGET_XTENSA)
-
-static int cpu_gdb_read_register(CPUXtensaState *env, uint8_t *mem_buf, int n)
-{
- const XtensaGdbReg *reg = env->config->gdb_regmap.reg + n;
-
- if (n < 0 || n >= env->config->gdb_regmap.num_regs) {
- return 0;
- }
-
- switch (reg->type) {
- case 9: /*pc*/
- GET_REG32(env->pc);
-
- case 1: /*ar*/
- xtensa_sync_phys_from_window(env);
- GET_REG32(env->phys_regs[(reg->targno & 0xff) % env->config->nareg]);
-
- case 2: /*SR*/
- GET_REG32(env->sregs[reg->targno & 0xff]);
-
- case 3: /*UR*/
- GET_REG32(env->uregs[reg->targno & 0xff]);
-
- case 4: /*f*/
- GET_REG32(float32_val(env->fregs[reg->targno & 0x0f]));
-
- case 8: /*a*/
- GET_REG32(env->regs[reg->targno & 0x0f]);
-
- default:
- qemu_log("%s from reg %d of unsupported type %d\n",
- __func__, n, reg->type);
- return 0;
- }
-}
-
-static int cpu_gdb_write_register(CPUXtensaState *env, uint8_t *mem_buf, int n)
-{
- uint32_t tmp;
- const XtensaGdbReg *reg = env->config->gdb_regmap.reg + n;
-
- if (n < 0 || n >= env->config->gdb_regmap.num_regs) {
- return 0;
- }
-
- tmp = ldl_p(mem_buf);
-
- switch (reg->type) {
- case 9: /*pc*/
- env->pc = tmp;
- break;
-
- case 1: /*ar*/
- env->phys_regs[(reg->targno & 0xff) % env->config->nareg] = tmp;
- xtensa_sync_window_from_phys(env);
- break;
-
- case 2: /*SR*/
- env->sregs[reg->targno & 0xff] = tmp;
- break;
-
- case 3: /*UR*/
- env->uregs[reg->targno & 0xff] = tmp;
- break;
-
- case 4: /*f*/
- env->fregs[reg->targno & 0x0f] = make_float32(tmp);
- break;
-
- case 8: /*a*/
- env->regs[reg->targno & 0x0f] = tmp;
- break;
-
- default:
- qemu_log("%s to reg %d of unsupported type %d\n",
- __func__, n, reg->type);
- return 0;
- }
-
- return 4;
-}
-#else
-
-static int cpu_gdb_read_register(CPUArchState *env, uint8_t *mem_buf, int n)
-{
- return 0;
-}
-
-static int cpu_gdb_write_register(CPUArchState *env, uint8_t *mem_buf, int n)
-{
- return 0;
-}
-
-#endif
-
-#ifdef GDB_CORE_XML
/* Encode data using the encoding for 'x' packets. */
static int memtox(char *buf, const char *mem, int len)
{
return p - buf;
}
-static const char *get_feature_xml(const char *p, const char **newp)
+static const char *get_feature_xml(const char *p, const char **newp,
+ CPUClass *cc)
{
size_t len;
int i;
"<!DOCTYPE target SYSTEM \"gdb-target.dtd\">"
"<target>"
"<xi:include href=\"%s\"/>",
- GDB_CORE_XML);
+ cc->gdb_core_xml_file);
for (r = cpu->gdb_regs; r; r = r->next) {
pstrcat(target_xml, sizeof(target_xml), "<xi:include href=\"");
}
return name ? xml_builtin[i][1] : NULL;
}
-#endif
static int gdb_read_register(CPUState *cpu, uint8_t *mem_buf, int reg)
{
GDBRegisterState *r;
if (reg < cc->gdb_num_core_regs) {
- return cpu_gdb_read_register(env, mem_buf, reg);
+ return cc->gdb_read_register(cpu, mem_buf, reg);
}
for (r = cpu->gdb_regs; r; r = r->next) {
GDBRegisterState *r;
if (reg < cc->gdb_num_core_regs) {
- return cpu_gdb_write_register(env, mem_buf, reg);
+ return cc->gdb_write_register(cpu, mem_buf, reg);
}
for (r = cpu->gdb_regs; r; r = r->next) {
if (g_pos != s->base_reg) {
fprintf(stderr, "Error: Bad gdb register numbering for '%s'\n"
"Expected %d got %d\n", xml, g_pos, s->base_reg);
+ } else {
+ cpu->gdb_num_g_regs = cpu->gdb_num_regs;
}
}
}
switch (type) {
case GDB_BREAKPOINT_SW:
case GDB_BREAKPOINT_HW:
- for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
+ CPU_FOREACH(cpu) {
env = cpu->env_ptr;
err = cpu_breakpoint_insert(env, addr, BP_GDB, NULL);
if (err)
case GDB_WATCHPOINT_WRITE:
case GDB_WATCHPOINT_READ:
case GDB_WATCHPOINT_ACCESS:
- for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
+ CPU_FOREACH(cpu) {
env = cpu->env_ptr;
err = cpu_watchpoint_insert(env, addr, len, xlat_gdb_type[type],
NULL);
switch (type) {
case GDB_BREAKPOINT_SW:
case GDB_BREAKPOINT_HW:
- for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
+ CPU_FOREACH(cpu) {
env = cpu->env_ptr;
err = cpu_breakpoint_remove(env, addr, BP_GDB);
if (err)
case GDB_WATCHPOINT_WRITE:
case GDB_WATCHPOINT_READ:
case GDB_WATCHPOINT_ACCESS:
- for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
+ CPU_FOREACH(cpu) {
env = cpu->env_ptr;
err = cpu_watchpoint_remove(env, addr, len, xlat_gdb_type[type]);
if (err)
return;
}
- for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
+ CPU_FOREACH(cpu) {
env = cpu->env_ptr;
cpu_breakpoint_remove_all(env, BP_GDB);
#ifndef CONFIG_USER_ONLY
{
CPUState *cpu;
- for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
+ CPU_FOREACH(cpu) {
if (cpu_index(cpu) == thread_id) {
return cpu;
}
static int gdb_handle_packet(GDBState *s, const char *line_buf)
{
CPUState *cpu;
+ CPUClass *cc;
const char *p;
uint32_t thread;
int ch, reg_size, type, res;
case 'g':
cpu_synchronize_state(s->g_cpu);
len = 0;
- for (addr = 0; addr < s->g_cpu->gdb_num_regs; addr++) {
+ for (addr = 0; addr < s->g_cpu->gdb_num_g_regs; addr++) {
reg_size = gdb_read_register(s->g_cpu, mem_buf + len, addr);
len += reg_size;
}
registers = mem_buf;
len = strlen(p) / 2;
hextomem((uint8_t *)registers, p, len);
- for (addr = 0; addr < s->g_cpu->gdb_num_regs && len > 0; addr++) {
+ for (addr = 0; addr < s->g_cpu->gdb_num_g_regs && len > 0; addr++) {
reg_size = gdb_write_register(s->g_cpu, registers, addr);
len -= reg_size;
registers += reg_size;
if (s->query_cpu) {
snprintf(buf, sizeof(buf), "m%x", cpu_index(s->query_cpu));
put_packet(s, buf);
- s->query_cpu = s->query_cpu->next_cpu;
+ s->query_cpu = CPU_NEXT(s->query_cpu);
} else
put_packet(s, "l");
break;
#endif /* !CONFIG_USER_ONLY */
if (strncmp(p, "Supported", 9) == 0) {
snprintf(buf, sizeof(buf), "PacketSize=%x", MAX_PACKET_LENGTH);
-#ifdef GDB_CORE_XML
- pstrcat(buf, sizeof(buf), ";qXfer:features:read+");
-#endif
+ cc = CPU_GET_CLASS(first_cpu);
+ if (cc->gdb_core_xml_file != NULL) {
+ pstrcat(buf, sizeof(buf), ";qXfer:features:read+");
+ }
put_packet(s, buf);
break;
}
-#ifdef GDB_CORE_XML
if (strncmp(p, "Xfer:features:read:", 19) == 0) {
const char *xml;
target_ulong total_len;
- gdb_has_xml = 1;
+ cc = CPU_GET_CLASS(first_cpu);
+ if (cc->gdb_core_xml_file == NULL) {
+ goto unknown_command;
+ }
+
+ gdb_has_xml = true;
p += 19;
- xml = get_feature_xml(p, &p);
+ xml = get_feature_xml(p, &p, cc);
if (!xml) {
snprintf(buf, sizeof(buf), "E00");
put_packet(s, buf);
put_packet_binary(s, buf, len + 1);
break;
}
-#endif
/* Unrecognised 'q' command. */
goto unknown_command;
s->c_cpu = first_cpu;
s->g_cpu = first_cpu;
s->fd = fd;
- gdb_has_xml = 0;
+ gdb_has_xml = false;
gdbserver_state = s;
static int gdbserver_open(int port)
{
struct sockaddr_in sockaddr;
- int fd, val, ret;
+ int fd, ret;
fd = socket(PF_INET, SOCK_STREAM, 0);
if (fd < 0) {
fcntl(fd, F_SETFD, FD_CLOEXEC);
#endif
- /* allow fast reuse */
- val = 1;
- qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
+ socket_set_fast_reuse(fd);
sockaddr.sin_family = AF_INET;
sockaddr.sin_port = htons(port);
switch (event) {
case CHR_EVENT_OPENED:
vm_stop(RUN_STATE_PAUSED);
- gdb_has_xml = 0;
+ gdb_has_xml = false;
break;
default:
break;
projects / qemu.git / blobdiff