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/*******************************************************************************
* Copyright (c) 2007, 2010 Wind River Systems, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v1.0 which accompany this distribution.
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
* You may elect to redistribute this code under either of these licenses.
*
* Contributors:
* Wind River Systems - initial API and implementation
*******************************************************************************/
/*
* This module provides POSIX signal names and descriptions.
*/
#include <tcf/config.h>
#include <signal.h>
#include <tcf/framework/myalloc.h>
#include <tcf/framework/sigsets.h>
#include <tcf/framework/signames.h>
#if defined(_WIN32)
typedef struct ExceptionName {
DWORD code;
const char * name;
const char * desc;
} ExceptionName;
static ExceptionName exception_names[] = {
{ 0x40010005, NULL, "Control-C" },
{ 0x40010008, NULL, "Control-Break" },
{ EXCEPTION_DATATYPE_MISALIGNMENT, "EXCEPTION_DATATYPE_MISALIGNMENT", "Datatype Misalignment" },
{ EXCEPTION_ACCESS_VIOLATION, "EXCEPTION_ACCESS_VIOLATION", "Access Violation" },
{ EXCEPTION_IN_PAGE_ERROR, "EXCEPTION_IN_PAGE_ERROR", "In Page Error" },
{ EXCEPTION_ILLEGAL_INSTRUCTION, "EXCEPTION_ILLEGAL_INSTRUCTION", "Illegal Instruction" },
{ EXCEPTION_ARRAY_BOUNDS_EXCEEDED, "EXCEPTION_ARRAY_BOUNDS_EXCEEDED", "Array Bounds Exceeded" },
{ EXCEPTION_FLT_DENORMAL_OPERAND, "EXCEPTION_FLT_DENORMAL_OPERAND", "Float Denormal Operand" },
{ EXCEPTION_FLT_DIVIDE_BY_ZERO, "EXCEPTION_FLT_DIVIDE_BY_ZERO", "Float Divide by Zero" },
{ EXCEPTION_FLT_INEXACT_RESULT, "EXCEPTION_FLT_INEXACT_RESULT", "Float Inexact Result" },
{ EXCEPTION_FLT_INVALID_OPERATION, "EXCEPTION_FLT_INVALID_OPERATION", "Float Invalid Operation" },
{ EXCEPTION_FLT_OVERFLOW, "EXCEPTION_FLT_OVERFLOW", "Float Overflow" },
{ EXCEPTION_FLT_STACK_CHECK, "EXCEPTION_FLT_STACK_CHECK", "Float Stack Check" },
{ EXCEPTION_FLT_UNDERFLOW, "EXCEPTION_FLT_UNDERFLOW", "Float Underflow" },
{ EXCEPTION_NONCONTINUABLE_EXCEPTION, "EXCEPTION_NONCONTINUABLE_EXCEPTION", "Noncontinuable Exception" },
{ EXCEPTION_INVALID_DISPOSITION, "EXCEPTION_INVALID_DISPOSITION", "Invalid Disposition" },
{ EXCEPTION_INT_DIVIDE_BY_ZERO, "EXCEPTION_INT_DIVIDE_BY_ZERO", "Integer Divide by Zero" },
{ EXCEPTION_INT_OVERFLOW, "EXCEPTION_INT_OVERFLOW", "Integer Overflow" },
{ EXCEPTION_PRIV_INSTRUCTION, "EXCEPTION_PRIV_INSTRUCTION", "Privileged Instruction" },
{ EXCEPTION_STACK_OVERFLOW, "EXCEPTION_STACK_OVERFLOW", "Stack Overflow" },
{ EXCEPTION_GUARD_PAGE, "EXCEPTION_GUARD_PAGE", "Guard Page" },
{ 0xC0000194, "EXCEPTION_POSSIBLE_DEADLOCK", "Possible Deadlock" },
{ EXCEPTION_INVALID_HANDLE, "EXCEPTION_INVALID_HANDLE", "Invalid Handle" },
{ 0xc0000017, NULL, "No Memory" },
{ 0xc0000135, NULL, "DLL Not Found" },
{ 0xc0000142, NULL, "DLL Initialization Failed" },
{ 0xc06d007e, NULL, "Module Not Found" },
{ 0xc06d007f, NULL, "Procedure Not Found" },
{ 0xe06d7363, NULL, "Microsoft C++ Exception" },
};
#define EXCEPTION_NAMES_CNT ((int)(sizeof(exception_names) / sizeof(ExceptionName)))
int signal_cnt(void) {
return EXCEPTION_NAMES_CNT;
}
const char * signal_name(int signal) {
int n = signal - 1;
if (n >= 0 && n < EXCEPTION_NAMES_CNT) return exception_names[n].name;
return NULL;
}
const char * signal_description(int signal) {
int n = signal - 1;
if (n >= 0 && n < EXCEPTION_NAMES_CNT) return exception_names[n].desc;
return NULL;
}
unsigned signal_code(int signal) {
int n = signal - 1;
if (n >= 0 && n < EXCEPTION_NAMES_CNT) return exception_names[n].code;
return 0;
}
int get_signal_from_code(unsigned code) {
int n = 0;
while (n < EXCEPTION_NAMES_CNT) {
if (exception_names[n].code == code) return n + 1;
n++;
}
return 0;
}
#else
/*
* POSIX signals info
*/
typedef struct SignalInfo {
int signal;
const char * name;
const char * desc;
} SignalInfo;
#define SigDesc(sig, desc) { sig, ""#sig, desc },
static SignalInfo info[] = {
SigDesc(SIGHUP, "Hangup")
SigDesc(SIGINT, "Interrupt")
SigDesc(SIGQUIT, "Quit and dump core")
SigDesc(SIGILL, "Illegal instruction")
SigDesc(SIGTRAP, "Trace/breakpoint trap")
SigDesc(SIGABRT, "Process aborted")
SigDesc(SIGBUS, "Bus error")
SigDesc(SIGFPE, "Floating point exception")
SigDesc(SIGKILL, "Request to kill")
SigDesc(SIGUSR1, "User-defined signal 1")
SigDesc(SIGSEGV, "Segmentation violation")
SigDesc(SIGUSR2, "User-defined signal 2")
SigDesc(SIGPIPE, "Write to pipe with no one reading")
SigDesc(SIGALRM, "Signal raised by alarm")
SigDesc(SIGTERM, "Request to terminate")
#ifdef SIGSTKFLT
SigDesc(SIGSTKFLT, "Stack fault")
#endif
SigDesc(SIGCHLD, "Child process terminated or stopped")
SigDesc(SIGCONT, "Continue if stopped")
SigDesc(SIGSTOP, "Stop executing temporarily")
SigDesc(SIGTSTP, "Terminal stop signal")
SigDesc(SIGTTIN, "Background process attempting to read from tty")
SigDesc(SIGTTOU, "Background process attempting to write to tty")
SigDesc(SIGURG, "Urgent data available on socket")
SigDesc(SIGXCPU, "CPU time limit exceeded")
SigDesc(SIGXFSZ, "File size limit exceeded")
SigDesc(SIGVTALRM, "Virtual time timer expired")
SigDesc(SIGPROF, "Profiling timer expired")
#ifdef SIGWINCH
SigDesc(SIGWINCH, "Window resize signal")
#endif
#ifdef SIGIO
SigDesc(SIGIO, "Asynchronous I/O event")
#elif defined(SIGPOLL)
SigDesc(SIGPOLL, "Asynchronous I/O event")
#endif
#ifdef SIGINFO
SigDesc(SIGINFO, "Information request")
#endif
#ifdef SIGPWR
SigDesc(SIGPWR, "Power failure")
#endif
SigDesc(SIGSYS, "Bad syscall")
};
#undef SigDesc
#define INFO_CNT ((int)(sizeof(info) / sizeof(SignalInfo)))
static int index_len = 0;
static SignalInfo * get_info(int signal) {
static SignalInfo ** index = NULL;
if (index_len == 0) {
int i;
for (i = 0; i < INFO_CNT; i++) {
if (info[i].signal >= index_len) index_len = info[i].signal + 1;
}
index = (SignalInfo **)loc_alloc_zero(sizeof(SignalInfo *) * index_len);
for (i = 0; i < INFO_CNT; i++) {
index[info[i].signal] = &info[i];
}
}
if (signal < 0 || signal >= index_len) return NULL;
return index[signal];
}
int signal_cnt(void) {
get_info(0);
return index_len;
}
const char * signal_name(int signal) {
SignalInfo * i = get_info(signal);
if (i != NULL) return i->name;
return NULL;
}
const char * signal_description(int signal) {
SignalInfo * i = get_info(signal);
if (i != NULL) return i->desc;
return NULL;
}
unsigned signal_code(int signal) {
return signal;
}
int get_signal_from_code(unsigned code) {
return code;
}
#endif
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