#include "qemu/envlist.h"
#include "elf.h"
-#define DEBUG_LOGFILE "/tmp/qemu.log"
-
char *exec_path;
int singlestep;
/* Make sure everything is in a consistent state for calling fork(). */
void fork_start(void)
{
- pthread_mutex_lock(&tb_lock);
+ pthread_mutex_lock(&tcg_ctx.tb_ctx.tb_lock);
pthread_mutex_lock(&exclusive_lock);
mmap_fork_start();
}
pthread_mutex_init(&cpu_list_mutex, NULL);
pthread_cond_init(&exclusive_cond, NULL);
pthread_cond_init(&exclusive_resume, NULL);
- pthread_mutex_init(&tb_lock, NULL);
+ pthread_mutex_init(&tcg_ctx.tb_ctx.tb_lock, NULL);
gdbserver_fork(thread_env);
} else {
pthread_mutex_unlock(&exclusive_lock);
- pthread_mutex_unlock(&tb_lock);
+ pthread_mutex_unlock(&tcg_ctx.tb_ctx.tb_lock);
}
}
static inline void start_exclusive(void)
{
CPUArchState *other;
+ CPUState *other_cpu;
+
pthread_mutex_lock(&exclusive_lock);
exclusive_idle();
pending_cpus = 1;
/* Make all other cpus stop executing. */
for (other = first_cpu; other; other = other->next_cpu) {
- if (other->running) {
+ other_cpu = ENV_GET_CPU(other);
+ if (other_cpu->running) {
pending_cpus++;
cpu_exit(other);
}
}
/* Wait for exclusive ops to finish, and begin cpu execution. */
-static inline void cpu_exec_start(CPUArchState *env)
+static inline void cpu_exec_start(CPUState *cpu)
{
pthread_mutex_lock(&exclusive_lock);
exclusive_idle();
- env->running = 1;
+ cpu->running = true;
pthread_mutex_unlock(&exclusive_lock);
}
/* Mark cpu as not executing, and release pending exclusive ops. */
-static inline void cpu_exec_end(CPUArchState *env)
+static inline void cpu_exec_end(CPUState *cpu)
{
pthread_mutex_lock(&exclusive_lock);
- env->running = 0;
+ cpu->running = false;
if (pending_cpus > 1) {
pending_cpus--;
if (pending_cpus == 1) {
}
#else /* if !CONFIG_USE_NPTL */
/* These are no-ops because we are not threadsafe. */
-static inline void cpu_exec_start(CPUArchState *env)
+static inline void cpu_exec_start(CPUState *cpu)
{
}
-static inline void cpu_exec_end(CPUArchState *env)
+static inline void cpu_exec_end(CPUState *cpu)
{
}
void cpu_loop(CPUARMState *env)
{
+ CPUState *cs = CPU(arm_env_get_cpu(env));
int trapnr;
unsigned int n, insn;
target_siginfo_t info;
uint32_t addr;
for(;;) {
- cpu_exec_start(env);
+ cpu_exec_start(cs);
trapnr = cpu_arm_exec(env);
- cpu_exec_end(env);
+ cpu_exec_end(cs);
switch(trapnr) {
case EXCP_UDEF:
{
void cpu_loop(CPUUniCore32State *env)
{
+ CPUState *cs = CPU(uc32_env_get_cpu(env));
int trapnr;
unsigned int n, insn;
target_siginfo_t info;
for (;;) {
- cpu_exec_start(env);
+ cpu_exec_start(cs);
trapnr = uc32_cpu_exec(env);
- cpu_exec_end(env);
+ cpu_exec_end(cs);
switch (trapnr) {
case UC32_EXCP_PRIV:
{
void cpu_loop(CPUPPCState *env)
{
+ CPUState *cs = CPU(ppc_env_get_cpu(env));
target_siginfo_t info;
int trapnr;
target_ulong ret;
for(;;) {
- cpu_exec_start(env);
+ cpu_exec_start(cs);
trapnr = cpu_ppc_exec(env);
- cpu_exec_end(env);
+ cpu_exec_end(cs);
switch(trapnr) {
case POWERPC_EXCP_NONE:
/* Just go on */
#ifdef TARGET_MIPS
-#define MIPS_SYS(name, args) args,
-
+# ifdef TARGET_ABI_MIPSO32
+# define MIPS_SYS(name, args) args,
static const uint8_t mips_syscall_args[] = {
MIPS_SYS(sys_syscall , 8) /* 4000 */
MIPS_SYS(sys_exit , 1)
MIPS_SYS(sys_clock_adjtime, 2)
MIPS_SYS(sys_syncfs, 1)
};
-
-#undef MIPS_SYS
+# undef MIPS_SYS
+# endif /* O32 */
static int do_store_exclusive(CPUMIPSState *env)
{
return segv;
}
+/* Break codes */
+enum {
+ BRK_OVERFLOW = 6,
+ BRK_DIVZERO = 7
+};
+
+static int do_break(CPUMIPSState *env, target_siginfo_t *info,
+ unsigned int code)
+{
+ int ret = -1;
+
+ switch (code) {
+ case BRK_OVERFLOW:
+ case BRK_DIVZERO:
+ info->si_signo = TARGET_SIGFPE;
+ info->si_errno = 0;
+ info->si_code = (code == BRK_OVERFLOW) ? FPE_INTOVF : FPE_INTDIV;
+ queue_signal(env, info->si_signo, &*info);
+ ret = 0;
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
void cpu_loop(CPUMIPSState *env)
{
+ CPUState *cs = CPU(mips_env_get_cpu(env));
target_siginfo_t info;
- int trapnr, ret;
+ int trapnr;
+ abi_long ret;
+# ifdef TARGET_ABI_MIPSO32
unsigned int syscall_num;
+# endif
for(;;) {
- cpu_exec_start(env);
+ cpu_exec_start(cs);
trapnr = cpu_mips_exec(env);
- cpu_exec_end(env);
+ cpu_exec_end(cs);
switch(trapnr) {
case EXCP_SYSCALL:
- syscall_num = env->active_tc.gpr[2] - 4000;
env->active_tc.PC += 4;
+# ifdef TARGET_ABI_MIPSO32
+ syscall_num = env->active_tc.gpr[2] - 4000;
if (syscall_num >= sizeof(mips_syscall_args)) {
ret = -TARGET_ENOSYS;
} else {
arg5, arg6, arg7, arg8);
}
done_syscall:
+# else
+ ret = do_syscall(env, env->active_tc.gpr[2],
+ env->active_tc.gpr[4], env->active_tc.gpr[5],
+ env->active_tc.gpr[6], env->active_tc.gpr[7],
+ env->active_tc.gpr[8], env->active_tc.gpr[9],
+ env->active_tc.gpr[10], env->active_tc.gpr[11]);
+# endif /* O32 */
if (ret == -TARGET_QEMU_ESIGRETURN) {
/* Returning from a successful sigreturn syscall.
Avoid clobbering register state. */
break;
}
- if ((unsigned int)ret >= (unsigned int)(-1133)) {
+ if ((abi_ulong)ret >= (abi_ulong)-1133) {
env->active_tc.gpr[7] = 1; /* error flag */
ret = -ret;
} else {
info.si_code = TARGET_ILL_ILLOPC;
queue_signal(env, info.si_signo, &info);
break;
+ /* The code below was inspired by the MIPS Linux kernel trap
+ * handling code in arch/mips/kernel/traps.c.
+ */
+ case EXCP_BREAK:
+ {
+ abi_ulong trap_instr;
+ unsigned int code;
+
+ ret = get_user_ual(trap_instr, env->active_tc.PC);
+ if (ret != 0) {
+ goto error;
+ }
+
+ /* As described in the original Linux kernel code, the
+ * below checks on 'code' are to work around an old
+ * assembly bug.
+ */
+ code = ((trap_instr >> 6) & ((1 << 20) - 1));
+ if (code >= (1 << 10)) {
+ code >>= 10;
+ }
+
+ if (do_break(env, &info, code) != 0) {
+ goto error;
+ }
+ }
+ break;
+ case EXCP_TRAP:
+ {
+ abi_ulong trap_instr;
+ unsigned int code = 0;
+
+ ret = get_user_ual(trap_instr, env->active_tc.PC);
+ if (ret != 0) {
+ goto error;
+ }
+
+ /* The immediate versions don't provide a code. */
+ if (!(trap_instr & 0xFC000000)) {
+ code = ((trap_instr >> 6) & ((1 << 10) - 1));
+ }
+
+ if (do_break(env, &info, code) != 0) {
+ goto error;
+ }
+ }
+ break;
default:
- // error:
+error:
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
trapnr);
cpu_dump_state(env, stderr, fprintf, 0);
static void handle_arg_log(const char *arg)
{
int mask;
- const CPULogItem *item;
- mask = cpu_str_to_log_mask(arg);
+ mask = qemu_str_to_log_mask(arg);
if (!mask) {
- printf("Log items (comma separated):\n");
- for (item = cpu_log_items; item->mask != 0; item++) {
- printf("%-10s %s\n", item->name, item->help);
- }
+ qemu_print_log_usage(stdout);
exit(1);
}
- cpu_set_log(mask);
+ qemu_set_log(mask);
}
static void handle_arg_log_filename(const char *arg)
{
- cpu_set_log_filename(arg);
+ qemu_set_log_filename(arg);
}
static void handle_arg_set_env(const char *arg)
"size", "reserve 'size' bytes for guest virtual address space"},
#endif
{"d", "QEMU_LOG", true, handle_arg_log,
- "options", "activate log"},
+ "item[,...]", "enable logging of specified items "
+ "(use '-d help' for a list of items)"},
{"D", "QEMU_LOG_FILENAME", true, handle_arg_log_filename,
- "logfile", "override default logfile location"},
+ "logfile", "write logs to 'logfile' (default stderr)"},
{"p", "QEMU_PAGESIZE", true, handle_arg_pagesize,
"pagesize", "set the host page size to 'pagesize'"},
{"singlestep", "QEMU_SINGLESTEP", false, handle_arg_singlestep,
printf("\n"
"Defaults:\n"
"QEMU_LD_PREFIX = %s\n"
- "QEMU_STACK_SIZE = %ld byte\n"
- "QEMU_LOG = %s\n",
+ "QEMU_STACK_SIZE = %ld byte\n",
interp_prefix,
- guest_stack_size,
- DEBUG_LOGFILE);
+ guest_stack_size);
printf("\n"
"You can use -E and -U options or the QEMU_SET_ENV and\n"
int main(int argc, char **argv, char **envp)
{
- const char *log_file = DEBUG_LOGFILE;
struct target_pt_regs regs1, *regs = ®s1;
struct image_info info1, *info = &info1;
struct linux_binprm bprm;
cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
#endif
- /* init debug */
- cpu_set_log_filename(log_file);
optind = parse_args(argc, argv);
/* Zero out regs */
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
-#if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
+#if defined(TARGET_SPARC) || defined(TARGET_PPC)
cpu_reset(ENV_GET_CPU(env));
#endif
projects / qemu.git / blobdiff