void
sigtrap_handler(int signal, siginfo_t *info, os_context_t *context)
{
unsigned int trap;
if (single_stepping) {
restore_breakpoint_from_single_step(context);
return;
}
/* This is just for info in case the monitor wants to print an
* approximation. */
current_control_stack_pointer =
(lispobj *)*os_context_sp_addr(context);
#ifdef LISP_FEATURE_SUNOS
/* For some reason the breakpoints that :ENCAPSULATE NIL tracing sets up
* cause a trace trap (i.e. processor single-stepping trap) on the following
* instruction on Solaris 10/x86. -- JES, 2006-04-07
*/
if (info->si_code == TRAP_TRACE) {
lose("foo");
return;
}
#endif
/* On entry %eip points just after the INT3 byte and aims at the
* 'kind' value (eg trap_Cerror). For error-trap and Cerror-trap a
* number of bytes will follow, the first is the length of the byte
* arguments to follow. */
trap = *(unsigned char *)(*os_context_pc_addr(context));
handle_trap(context, trap);
}
static void
sigtrap_handler(int signal, siginfo_t *siginfo, os_context_t *context)
{
unsigned int code = *((unsigned char *)(4+*os_context_pc_addr(context)));
u32 trap_instruction = *((u32 *)*os_context_pc_addr(context));
int condition_bits = (trap_instruction >> 28) & 0x0f;
/* Make sure that we're looking at an SWI instruction or that one
* undefined instruction that the kernel recognizes as an explicit
* trap. */
if ((condition_bits == 15)
|| (((trap_instruction & 0x0f000000) != 0x0f000000)
&& (trap_instruction != 0xe7f001f0))) {
lose("Unrecognized trap instruction %08lx in sigtrap_handler()",
trap_instruction);
}
if (trap_instruction == 0xe7f001f0) {
handle_trap(context, code);
} else {
arch_clear_pseudo_atomic_interrupted(context);
arch_skip_instruction(context);
interrupt_handle_pending(context);
}
}
void userspace(union uml_pt_regs *regs)
{
int err, status, op, pid = userspace_pid[0];
int local_using_sysemu; /*To prevent races if using_sysemu changes under us.*/
while(1){
restore_registers(pid, regs);
/* Now we set local_using_sysemu to be used for one loop */
local_using_sysemu = get_using_sysemu();
op = SELECT_PTRACE_OPERATION(local_using_sysemu, singlestepping(NULL));
err = ptrace(op, pid, 0, 0);
if(err)
panic("userspace - could not resume userspace process, "
"pid=%d, ptrace operation = %d, errno = %d\n",
op, errno);
CATCH_EINTR(err = waitpid(pid, &status, WUNTRACED));
if(err < 0)
panic("userspace - waitpid failed, errno = %d\n",
errno);
regs->skas.is_user = 1;
save_registers(pid, regs);
UPT_SYSCALL_NR(regs) = -1; /* Assume: It's not a syscall */
if(WIFSTOPPED(status)){
switch(WSTOPSIG(status)){
case SIGSEGV:
handle_segv(pid, regs);
break;
case SIGTRAP + 0x80:
handle_trap(pid, regs, local_using_sysemu);
break;
case SIGTRAP:
relay_signal(SIGTRAP, regs);
break;
case SIGIO:
case SIGVTALRM:
case SIGILL:
case SIGBUS:
case SIGFPE:
case SIGWINCH:
user_signal(WSTOPSIG(status), regs, pid);
break;
default:
printk("userspace - child stopped with signal "
"%d\n", WSTOPSIG(status));
}
interrupt_end();
/* Avoid -ERESTARTSYS handling in host */
PT_SYSCALL_NR(regs->skas.regs) = -1;
}
}
}
void userspace(union uml_pt_regs *regs)
{
int err, status, op, pid = userspace_pid[0];
restore_registers(regs);
err = ptrace(PTRACE_SYSCALL, pid, 0, 0);
if(err)
panic("userspace - PTRACE_SYSCALL failed, errno = %d\n",
errno);
while(1){
CATCH_EINTR(err = waitpid(pid, &status, WUNTRACED));
if(err < 0)
panic("userspace - waitpid failed, errno = %d\n",
errno);
regs->skas.is_user = 1;
save_registers(regs);
if(WIFSTOPPED(status)){
switch(WSTOPSIG(status)){
case SIGSEGV:
handle_segv(pid);
break;
case SIGTRAP:
handle_trap(pid, regs);
break;
case SIGIO:
case SIGVTALRM:
case SIGILL:
case SIGBUS:
case SIGFPE:
case SIGWINCH:
user_signal(WSTOPSIG(status), regs);
break;
default:
printk("userspace - child stopped with signal "
"%d\n", WSTOPSIG(status));
}
interrupt_end();
}
restore_registers(regs);
op = singlestepping_skas() ? PTRACE_SINGLESTEP :
PTRACE_SYSCALL;
err = ptrace(op, pid, 0, 0);
if(err)
panic("userspace - PTRACE_SYSCALL failed, "
"errno = %d\n", errno);
}
}
static void
sigtrap_handler(int signal, siginfo_t *siginfo, os_context_t *context)
{
unsigned int code = *((unsigned char *)(4+*os_context_pc_addr(context)));
u32 trap_instruction = *((u32 *)*os_context_pc_addr(context));
if (trap_instruction != 0xe7f001f0) {
lose("Unrecognized trap instruction %08lx in sigtrap_handler()",
trap_instruction);
}
if (code == trap_PendingInterrupt) {
arch_skip_instruction(context);
}
handle_trap(context, code);
}
void
sigtrap_handler(int signal, siginfo_t *info, os_context_t *context)
{
unsigned int trap;
if (single_stepping) {
restore_breakpoint_from_single_step(context);
return;
}
/* This is just for info in case the monitor wants to print an
* approximation. */
access_control_stack_pointer(arch_os_get_current_thread()) =
(lispobj *)*os_context_sp_addr(context);
/* On entry %eip points just after the INT3 byte and aims at the
* 'kind' value (eg trap_Cerror). For error-trap and Cerror-trap a
* number of bytes will follow, the first is the length of the byte
* arguments to follow. */
trap = *(unsigned char *)(*os_context_pc_addr(context));
handle_trap(context, trap);
}
sai_status_t processEvent(swss::ConsumerTable &consumer)
{
std::lock_guard<std::mutex> lock(g_mutex);
SWSS_LOG_ENTER();
swss::KeyOpFieldsValuesTuple kco;
consumer.pop(kco);
const std::string &key = kfvKey(kco);
const std::string &op = kfvOp(kco);
std::string str_object_type = key.substr(0, key.find(":"));
std::string str_object_id = key.substr(key.find(":")+1);
SWSS_LOG_INFO("key: %s op: %s", key.c_str(), op.c_str());
sai_common_api_t api = SAI_COMMON_API_MAX;
if (op == "create")
api = SAI_COMMON_API_CREATE;
else if (op == "remove")
api = SAI_COMMON_API_REMOVE;
else if (op == "set")
api = SAI_COMMON_API_SET;
else if (op == "get")
api = SAI_COMMON_API_GET;
else
{
if (op != "delget")
SWSS_LOG_ERROR("api %s is not implemented", op.c_str());
return SAI_STATUS_NOT_SUPPORTED;
}
std::stringstream ss;
int index = 0;
sai_object_type_t object_type;
sai_deserialize_primitive(str_object_type, index, object_type);
if (object_type >= SAI_OBJECT_TYPE_MAX)
{
SWSS_LOG_ERROR("undefined object type %d", object_type);
return SAI_STATUS_NOT_SUPPORTED;
}
const std::vector<swss::FieldValueTuple> &values = kfvFieldsValues(kco);
SaiAttributeList list(object_type, values, false);
if (api != SAI_COMMON_API_GET)
translate_vid_to_rid_list(object_type, list.get_attr_count(), list.get_attr_list());
sai_attribute_t *attr_list = list.get_attr_list();
uint32_t attr_count = list.get_attr_count();
sai_status_t status;
switch (object_type)
{
case SAI_OBJECT_TYPE_FDB:
status = handle_fdb(str_object_id, api, attr_count, attr_list);
break;
case SAI_OBJECT_TYPE_SWITCH:
status = handle_switch(str_object_id, api, attr_count, attr_list);
break;
case SAI_OBJECT_TYPE_NEIGHBOR:
status = handle_neighbor(str_object_id, api, attr_count, attr_list);
break;
case SAI_OBJECT_TYPE_ROUTE:
status = handle_route(str_object_id, api, attr_count, attr_list);
break;
case SAI_OBJECT_TYPE_VLAN:
status = handle_vlan(str_object_id, api, attr_count, attr_list);
break;
case SAI_OBJECT_TYPE_TRAP:
status = handle_trap(str_object_id, api, attr_count, attr_list);
break;
default:
status = handle_generic(object_type, str_object_id, api, attr_count, attr_list);
break;
}
if (api == SAI_COMMON_API_GET)
{
internal_syncd_get_send(object_type, status, attr_count, attr_list);
}
else if (status != SAI_STATUS_SUCCESS)
{
SWSS_LOG_ERROR("failed to execute api: %s: %d", op.c_str(), status);
exit(EXIT_FAILURE);
}
return status;
}
void i860_cpu_device::run_cycle() {
CLEAR_FLOW();
m_dim_cc_valid = false;
m_flow &= ~DIM_OP;
UINT64 insn64 = ifetch64(m_pc);
if(!(m_pc & 4)) {
UINT32 savepc = m_pc;
#if ENABLE_DEBUGGER
if(m_single_stepping) debugger(0,0);
#endif
UINT32 insnLow = insn64;
if(insnLow == INSN_FNOP_DIM) {
if(m_dim) m_flow |= DIM_OP;
else m_flow &= ~DIM_OP;
} else if((insnLow & INSN_MASK_DIM) == INSN_FP_DIM)
m_flow |= DIM_OP;
decode_exec(insnLow);
if (PENDING_TRAP()) {
handle_trap(savepc);
goto done;
} else if(GET_PC_UPDATED()) {
goto done;
} else {
// If the PC wasn't updated by a control flow instruction, just bump to next sequential instruction.
m_pc += 4;
CLEAR_FLOW();
}
}
if(m_pc & 4) {
UINT32 savepc = m_pc;
#if ENABLE_DEBUGGER
if(m_single_stepping && !(m_dim)) debugger(0,0);
#endif
UINT32 insnHigh= insn64 >> 32;
decode_exec(insnHigh);
// only check for external interrupts
// - on high-word (speedup)
// - not DIM (safety :-)
// - when no other traps are pending
if(!(m_dim) && !(PENDING_TRAP())) {
if(m_flow & EXT_INTR) {
m_flow &= ~EXT_INTR;
gen_interrupt();
} else
clr_interrupt();
}
if (PENDING_TRAP()) {
handle_trap(savepc);
} else if (GET_PC_UPDATED()) {
goto done;
} else {
// If the PC wasn't updated by a control flow instruction, just bump to next sequential instruction.
m_pc += 4;
}
}
void userspace(union uml_pt_regs *regs)
{
int err, status, op, pt_syscall_parm, pid = userspace_pid[0];
int local_using_sysemu; /*To prevent races if using_sysemu changes under us.*/
restore_registers(regs);
local_using_sysemu = get_using_sysemu();
pt_syscall_parm = local_using_sysemu ? PTRACE_SYSEMU : PTRACE_SYSCALL;
err = ptrace(pt_syscall_parm, pid, 0, 0);
if(err)
panic("userspace - PTRACE_%s failed, errno = %d\n",
local_using_sysemu ? "SYSEMU" : "SYSCALL", errno);
while(1){
CATCH_EINTR(err = waitpid(pid, &status, WUNTRACED));
if(err < 0)
panic("userspace - waitpid failed, errno = %d\n",
errno);
regs->skas.is_user = 1;
save_registers(regs);
if(WIFSTOPPED(status)){
switch(WSTOPSIG(status)){
case SIGSEGV:
handle_segv(pid);
break;
case SIGTRAP:
handle_trap(pid, regs, local_using_sysemu);
break;
case SIGIO:
case SIGVTALRM:
case SIGILL:
case SIGBUS:
case SIGFPE:
case SIGWINCH:
user_signal(WSTOPSIG(status), regs);
break;
default:
printk("userspace - child stopped with signal "
"%d\n", WSTOPSIG(status));
}
interrupt_end();
}
restore_registers(regs);
/*Now we ended the syscall, so re-read local_using_sysemu.*/
local_using_sysemu = get_using_sysemu();
pt_syscall_parm = local_using_sysemu ? PTRACE_SYSEMU : PTRACE_SYSCALL;
op = singlestepping(NULL) ? PTRACE_SINGLESTEP :
pt_syscall_parm;
err = ptrace(op, pid, 0, 0);
if(err)
panic("userspace - PTRACE_%s failed, "
"errno = %d\n",
local_using_sysemu ? "SYSEMU" : "SYSCALL", errno);
}
}
