version 1.39, 2007/12/31 18:40:25
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version 1.44, 2012/03/23 19:32:25
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/* signal handling |
/* signal handling |
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Copyright (C) 1995,1996,1997,1998,2000,2003,2006,2007 Free Software Foundation, Inc. |
Copyright (C) 1995,1996,1997,1998,2000,2003,2006,2007,2011 Free Software Foundation, Inc. |
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This file is part of Gforth. |
This file is part of Gforth. |
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Line 29
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#if !defined(apollo) && !defined(MSDOS) |
#if !defined(apollo) && !defined(MSDOS) |
#include <sys/ioctl.h> |
#include <sys/ioctl.h> |
#endif |
#endif |
/* #include <asm/signal.h> */ |
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#include <sys/types.h> |
#include <sys/types.h> |
#include <signal.h> |
#include <signal.h> |
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#include <termios.h> |
#include "io.h" |
#include "io.h" |
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#ifdef HAS_DEBUG |
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extern int debug; |
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# define debugp(x...) do { if (debug) fprintf(x); } while (0) |
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#else |
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# define perror(x...) |
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# define fprintf(x...) |
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# define debugp(x...) |
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#endif |
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#ifndef HAVE_STACK_T |
#ifndef HAVE_STACK_T |
/* Darwin uses "struct sigaltstack" instead of "stack_t" */ |
/* Darwin uses "struct sigaltstack" instead of "stack_t" */ |
typedef struct sigaltstack stack_t; |
typedef struct sigaltstack stack_t; |
Line 92 graceful_exit (int sig)
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Line 101 graceful_exit (int sig)
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exit (0x80|sig); |
exit (0x80|sig); |
} |
} |
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jmp_buf throw_jmp_buf; |
__thread jmp_buf throw_jmp_buf; |
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void throw(int code) |
void throw(int code) |
{ |
{ |
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debugp(stderr,"\nthrow code %d\n", code); |
longjmp(throw_jmp_buf,code); /* !! or use siglongjmp ? */ |
longjmp(throw_jmp_buf,code); /* !! or use siglongjmp ? */ |
} |
} |
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Line 103 static void
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Line 113 static void
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signal_throw(int sig) |
signal_throw(int sig) |
{ |
{ |
int code; |
int code; |
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debugp(stderr,"\ncaught signal %d\n", sig); |
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switch (sig) { |
switch (sig) { |
case SIGINT: code=-28; break; |
case SIGINT: code=-28; break; |
Line 131 signal_throw(int sig)
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Line 142 signal_throw(int sig)
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static void |
static void |
sigaction_throw(int sig, siginfo_t *info, void *_) |
sigaction_throw(int sig, siginfo_t *info, void *_) |
{ |
{ |
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debugp(stderr,"\nsigaction_throw %d %x %x\n", sig, info, _); |
signal_throw(sig); |
signal_throw(sig); |
} |
} |
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Line 139 static void fpe_handler(int sig, siginfo
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Line 151 static void fpe_handler(int sig, siginfo
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{ |
{ |
int code; |
int code; |
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debugp(stderr,"\nfpe_handler %d %x %x\n", sig, info, _); |
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switch(info->si_code) { |
switch(info->si_code) { |
#ifdef FPE_INTDIV |
#ifdef FPE_INTDIV |
case FPE_INTDIV: code=BALL_DIVZERO; break; |
case FPE_INTDIV: code=BALL_DIVZERO; break; |
Line 185 static void segv_handler(int sig, siginf
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Line 199 static void segv_handler(int sig, siginf
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Address addr=info->si_addr; |
Address addr=info->si_addr; |
ImageHeader *h=gforth_header; |
ImageHeader *h=gforth_header; |
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debugp(stderr,"\nsegv_handler %d %x %x\n", sig, info, _); |
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if (JUSTUNDER(addr, h->data_stack_base)) |
if (JUSTUNDER(addr, h->data_stack_base)) |
code=-3; |
code=-3; |
else if (JUSTOVER(addr, NEXTPAGE(h->data_stack_base+h->data_stack_size))) |
else if (JUSTOVER(addr, NEXTPAGE(h->data_stack_base+h->data_stack_size))) |
Line 415 void install_signal_handlers(void)
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Line 431 void install_signal_handlers(void)
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sas_retval=sigaltstack(&sigstack,(stack_t *)0); |
sas_retval=sigaltstack(&sigstack,(stack_t *)0); |
} |
} |
#if defined(HAS_FILE) || !defined(STANDALONE) |
#if defined(HAS_FILE) || !defined(STANDALONE) |
if (debug) |
debugp(stderr,"sigaltstack: %s\n",strerror(sas_retval)); |
fprintf(stderr,"sigaltstack: %s\n",strerror(sas_retval)); |
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#endif |
#endif |
#endif |
#endif |
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