version 1.31, 2006/10/21 22:13:49
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version 1.51, 2012/07/20 19:34:27
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/* signal handling |
/* signal handling |
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Copyright (C) 1995,1996,1997,1998,2000,2003 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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Gforth is free software; you can redistribute it and/or |
Gforth is free software; you can redistribute it and/or |
modify it under the terms of the GNU General Public License |
modify it under the terms of the GNU General Public License |
as published by the Free Software Foundation; either version 2 |
as published by the Free Software Foundation, either version 3 |
of the License, or (at your option) any later version. |
of the License, or (at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
This program is distributed in the hope that it will be useful, |
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GNU General Public License for more details. |
GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
You should have received a copy of the GNU General Public License |
along with this program; if not, write to the Free Software |
along with this program; if not, see http://www.gnu.org/licenses/. |
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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*/ |
*/ |
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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; |
#endif |
#endif |
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#define DEFAULTCOLS 80 |
#define DEFAULTCOLS 80 |
#if defined(MSDOS) || defined (_WIN32) |
#if defined(MSDOS) || defined (_WIN32) || defined (__CYGWIN__) |
#define DEFAULTROWS 25 |
#define DEFAULTROWS 25 |
#else |
#else |
#define DEFAULTROWS 24 |
#define DEFAULTROWS 24 |
Line 93 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; |
PER_THREAD jmp_buf * throw_jmp_handler; |
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void throw(int code) |
void throw(int code) |
{ |
{ |
longjmp(throw_jmp_buf,code); /* !! or use siglongjmp ? */ |
debugp(stderr,"\nthrow code %d to %p\n", code, *throw_jmp_handler); |
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longjmp(*throw_jmp_handler,code); /* !! or use siglongjmp ? */ |
} |
} |
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static void |
static void |
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 132 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 %p %p\n", sig, info, _); |
signal_throw(sig); |
signal_throw(sig); |
} |
} |
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Line 140 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=-10; break; /* integer divide by zero */ |
case FPE_INTDIV: code=BALL_DIVZERO; break; |
#endif |
#endif |
#ifdef FPE_INTOVF |
#ifdef FPE_INTOVF |
case FPE_INTOVF: code=-11; break; /* integer overflow */ |
case FPE_INTOVF: code=BALL_RESULTRANGE; break; /* integer overflow */ |
#endif |
#endif |
#ifdef FPE_FLTDIV |
#ifdef FPE_FLTDIV |
case FPE_FLTDIV: code=-42; break; /* floating point divide by zero */ |
case FPE_FLTDIV: code=-42; break; /* floating point divide by zero */ |
Line 179 static void fpe_handler(int sig, siginfo
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Line 192 static void fpe_handler(int sig, siginfo
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#define JUSTOVER(addr1,addr2) (((UCell)((addr1)-(addr2)))<SPILLAGE) |
#define JUSTOVER(addr1,addr2) (((UCell)((addr1)-(addr2)))<SPILLAGE) |
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#define NEXTPAGE(addr) ((Address)((((UCell)(addr)-1)&-pagesize)+pagesize)) |
#define NEXTPAGE(addr) ((Address)((((UCell)(addr)-1)&-pagesize)+pagesize)) |
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#define NEXTPAGE2(addr) ((Address)((((UCell)(addr)-1)&-pagesize)+2*pagesize)) |
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#define NEXTPAGE3(addr) ((Address)((((UCell)(addr)-1)&-pagesize)+3*pagesize)) |
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static void segv_handler(int sig, siginfo_t *info, void *_) |
static void segv_handler(int sig, siginfo_t *info, void *_) |
{ |
{ |
int code=-9; |
int code=-9; |
Address addr=info->si_addr; |
Address addr=info->si_addr; |
ImageHeader *h=gforth_header; |
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if (JUSTUNDER(addr, h->data_stack_base)) |
debugp(stderr,"\nsegv_handler %d %p %p @%p\n", sig, info, _, addr); |
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if (JUSTUNDER(addr, NEXTPAGE3(gforth_UP))) |
code=-3; |
code=-3; |
else if (JUSTOVER(addr, NEXTPAGE(h->data_stack_base+h->data_stack_size))) |
else if (JUSTOVER(addr, NEXTPAGE(gforth_UP->sp0))) |
code=-4; |
code=-4; |
else if (JUSTUNDER(addr, h->return_stack_base)) |
else if (JUSTUNDER(addr, NEXTPAGE2(gforth_UP->sp0))) |
code=-5; |
code=-5; |
else if (JUSTOVER(addr, NEXTPAGE(h->return_stack_base+h->return_stack_size))) |
else if (JUSTOVER(addr, NEXTPAGE(gforth_UP->rp0))) |
code=-6; |
code=-6; |
else if (JUSTUNDER(addr, h->fp_stack_base)) |
else if (JUSTUNDER(addr, NEXTPAGE2(gforth_UP->rp0))) |
code=-44; |
code=-44; |
else if (JUSTOVER(addr, NEXTPAGE(h->fp_stack_base+h->fp_stack_size))) |
else if (JUSTOVER(addr, NEXTPAGE(gforth_UP->fp0))) |
code=-45; |
code=-45; |
throw(code); |
throw(code); |
} |
} |
Line 232 void get_winsize()
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Line 248 void get_winsize()
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#endif |
#endif |
if (rows==0) |
if (rows==0) |
rows=DEFAULTROWS; |
rows=DEFAULTROWS; |
if (rows==0) |
if (cols==0) |
cols=DEFAULTCOLS; |
cols=DEFAULTCOLS; |
} |
} |
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Line 401 void install_signal_handlers(void)
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Line 417 void install_signal_handlers(void)
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}; |
}; |
int i; |
int i; |
void (*throw_handler)() = die_on_signal ? graceful_exit : signal_throw; |
void (*throw_handler)() = die_on_signal ? graceful_exit : signal_throw; |
#ifdef SIGSTKSZ |
#if 0 |
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/* sigaltstack is now called by gforth_stacks() */ |
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#if defined(SIGSTKSZ) |
stack_t sigstack; |
stack_t sigstack; |
int sas_retval=-1; |
int sas_retval=-1; |
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Line 415 void install_signal_handlers(void)
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Line 433 void install_signal_handlers(void)
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sigstack.ss_flags=0; |
sigstack.ss_flags=0; |
sas_retval=sigaltstack(&sigstack,(stack_t *)0); |
sas_retval=sigaltstack(&sigstack,(stack_t *)0); |
} |
} |
if (debug) |
#if defined(HAS_FILE) || !defined(STANDALONE) |
fprintf(stderr,"sigaltstack: %s\n",strerror(sas_retval)); |
debugp(stderr,"sigaltstack: %s\n",strerror(sas_retval)); |
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#endif |
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#endif |
#endif |
#endif |
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#define DIM(X) (sizeof (X) / sizeof *(X)) |
#define DIM(X) (sizeof (X) / sizeof *(X)) |