android
This commit is contained in:
Vitor Santos Costa
parent
5f2964cce6
commit
9b3bbf5e33
309
os/sig.c
309
os/sig.c
@ -1,6 +1,7 @@
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#include "sysbits.h"
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#if HAVE_SIGINFO_H
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#include <siginfo.h>
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#endif
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@ -12,40 +13,26 @@
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#include <fpu_control.h>
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#endif
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#if HAVE_SIGNAL
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#ifdef MSH
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#define SIGFPE SIGDIV
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#endif
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static void HandleMatherr(int sig, void *sipv, void *uapv);
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#define PLSIG_PREPARED 0x01 /* signal is prepared */
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#define PLSIG_THROW 0x02 /* throw signal(num, name) */
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#define PLSIG_SYNC 0x04 /* call synchronously */
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#define PLSIG_NOFRAME 0x08 /* Do not create a Prolog frame */
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#define SIG_PROLOG_OFFSET 32 /* Start of Prolog signals */
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#define SIG_EXCEPTION (SIG_PROLOG_OFFSET+0)
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#ifdef ATOMGC
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#ifdef O_ATOMGC
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#define SIG_ATOM_GC (SIG_PROLOG_OFFSET+1)
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#endif
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#define SIG_GC (SIG_PROLOG_OFFSET+2)
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#ifdef THREADS
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#define SIG_THREAD_SIGNAL (SIG_PROLOG_OFFSET + 3)b
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#ifdef O_PLMT
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#define SIG_THREAD_SIGNAL (SIG_PROLOG_OFFSET+3)
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#endif
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#define SIG_FREECLAUSES (SIG_PROLOG_OFFSET+4)
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#define SIG_PLABORT (SIG_PROLOG_OFFSET+5)
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static struct signame {
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int sig;
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static struct signame
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{ int sig;
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const char *name;
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int flags;
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} signames[] = {
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} signames[] =
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{
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#ifdef SIGHUP
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{ SIGHUP, "hup", 0},
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#endif
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@ -55,9 +42,7 @@ static struct signame {
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#endif
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{ SIGILL, "ill", 0},
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{ SIGABRT, "abrt", 0},
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#if HAVE_SIGFPE
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{SIGFPE, "fpe", PLSIG_THROW},
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#endif
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{ SIGFPE, "fpe", 0},
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#ifdef SIGKILL
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{ SIGKILL, "kill", 0},
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#endif
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@ -66,7 +51,7 @@ static struct signame {
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{ SIGPIPE, "pipe", 0},
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#endif
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#ifdef SIGALRM
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{SIGALRM, "alrm", PLSIG_THROW},
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{ SIGALRM, "alrm", 0},
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#endif
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{ SIGTERM, "term", 0},
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#ifdef SIGUSR1
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@ -112,13 +97,13 @@ static struct signame {
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{ SIGPOLL, "poll", 0},
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#endif
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#ifdef SIGXCPU
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{SIGXCPU, "xcpu", PLSIG_THROW},
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{ SIGXCPU, "xcpu", 0},
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#endif
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#ifdef SIGXFSZ
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{SIGXFSZ, "xfsz", PLSIG_THROW},
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{ SIGXFSZ, "xfsz", 0},
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#endif
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#ifdef SIGVTALRM
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{SIGVTALRM, "vtalrm", PLSIG_THROW},
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{ SIGVTALRM, "vtalrm", 0},
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#endif
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#ifdef SIGPROF
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{ SIGPROF, "prof", 0},
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@ -137,7 +122,6 @@ static struct signame {
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{-1, NULL, 0}};
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typedef void (*signal_handler_t)(int, void *, void *);
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#if HAVE_SIGACTION
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static void my_signal_info(int sig, void *handler) {
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@ -161,15 +145,30 @@ static void my_signal(int sig, void *handler) {
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#else
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static void my_signal(int sig, void *handler) { signal(sig, handler); }
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static void my_signal(int sig, void *handler) {
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#if HAVE_SIGNAL
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signal(sig, handler);
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#endif
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}
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static void my_signal_info(int sig, void *handler) {
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#if HAVE_SIGNAL
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if (signal(sig, (void *)handler) == SIG_ERR)
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exit(1);
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#endif
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}
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#endif
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static void HandleMatherr(int sig, void *sipv, void *uapv) {
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CACHE_REGS
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LOCAL_matherror = Yap_MathException();
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/* reset the registers so that we don't have trash in abstract machine */
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Yap_external_signal(worker_id, YAP_FPE_SIGNAL);
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}
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/* SWI emulation */
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int Yap_signal_index(const char *name) {
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struct signame *sn = signames;
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@ -244,8 +243,6 @@ static void HandleSIGSEGV(int sig, void *sipv, void *uap) {
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}
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#endif /* SIGSEGV */
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#if HAVE_SIGFPE
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/* by default Linux with glibc is IEEE compliant anyway..., but we will pretend
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* it is not. */
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static bool set_fpu_exceptions(Term flag) {
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@ -321,99 +318,11 @@ static bool set_fpu_exceptions(Term flag) {
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return true;
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}
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bool Yap_set_fpu_exceptions(Term flag) { return set_fpu_exceptions(flag); }
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yap_error_number Yap_MathException__(USES_REGS1) {
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#if HAVE_FETESTEXCEPT
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int raised;
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#if !defined(LIGHT) && !_MSC_VER && !defined(__MINGW32__)
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// #pragma STDC FENV_ACCESS ON
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if ((raised = fetestexcept(FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW))) {
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feclearexcept(FE_ALL_EXCEPT);
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if (raised & FE_OVERFLOW) {
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return EVALUATION_ERROR_FLOAT_OVERFLOW;
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} else if (raised & FE_DIVBYZERO) {
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return EVALUATION_ERROR_ZERO_DIVISOR;
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} else if (raised & FE_UNDERFLOW) {
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return EVALUATION_ERROR_FLOAT_UNDERFLOW;
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//} else if (raised & (FE_INVALID|FE_INEXACT)) {
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// return EVALUATION_ERROR_UNDEFINED;
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} else {
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return EVALUATION_ERROR_UNDEFINED;
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}
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}
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#elif _WIN32
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unsigned int raised;
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int err;
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// Show original FP control word and do calculation.
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err = _controlfp_s(&raised, 0, 0);
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if (err) {
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return EVALUATION_ERROR_UNDEFINED;
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}
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if (raised) {
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feclearexcept(FE_ALL_EXCEPT);
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if (raised & FE_OVERFLOW) {
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return EVALUATION_ERROR_FLOAT_OVERFLOW;
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} else if (raised & FE_DIVBYZERO) {
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return EVALUATION_ERROR_ZERO_DIVISOR;
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} else if (raised & FE_UNDERFLOW) {
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return EVALUATION_ERROR_FLOAT_UNDERFLOW;
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//} else if (raised & (FE_INVALID|FE_INEXACT)) {
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// return EVALUATION_ERROR_UNDEFINED;
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} else {
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return EVALUATION_ERROR_UNDEFINED;
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}
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}
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#elif (defined(__svr4__) || defined(__SVR4))
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switch (sip->si_code) {
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case FPE_INTDIV:
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return EVALUATION_ERROR_ZERO_DIVISOR;
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break;
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case FPE_INTOVF:
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return EVALUATION_ERROR_INT_OVERFLOW;
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break;
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case FPE_FLTDIV:
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return EVALUATION_ERROR_ZERO_DIVISOR;
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break;
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case FPE_FLTOVF:
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return EVALUATION_ERROR_FLOAT_OVERFLOW;
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break;
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case FPE_FLTUND:
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return EVALUATION_ERROR_FLOAT_UNDERFLOW;
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break;
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case FPE_FLTRES:
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case FPE_FLTINV:
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case FPE_FLTSUB:
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default:
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return EVALUATION_ERROR_UNDEFINED;
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}
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set_fpu_exceptions(0);
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#endif
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return LOCAL_matherror;
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}
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static Int fpe_error(USES_REGS1) {
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Yap_Error(LOCAL_matherror, LOCAL_mathtt, LOCAL_mathstring);
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LOCAL_matherror = YAP_NO_ERROR;
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LOCAL_mathtt = TermNil;
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LOCAL_mathstring = NULL;
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return FALSE;
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}
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static void HandleMatherr(int sig, void *sipv, void *uapv) {
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CACHE_REGS
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LOCAL_matherror = Yap_MathException();
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/* reset the registers so that we don't have trash in abstract machine */
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Yap_external_signal(worker_id, YAP_FPE_SIGNAL);
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}
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#endif /* SIGFPE */
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#if !defined(LIGHT) && !_MSC_VER && !defined(__MINGW32__) && !defined(LIGHT)
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static RETSIGTYPE ReceiveSignal(int s, void *x, void *y) {
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static void * ReceiveSignal(int s, void *x, void *y) {
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CACHE_REGS
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LOCAL_PrologMode |= InterruptMode;
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my_signal(s, ReceiveSignal);
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@ -503,40 +412,6 @@ static BOOL WINAPI MSCHandleSignal(DWORD dwCtrlType) {
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}
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#endif
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/* SIGINT can cause problems, if caught before full initialization */
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void Yap_InitOSSignals(int wid) {
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if (GLOBAL_PrologShouldHandleInterrupts) {
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#if !defined(LIGHT) && !_MSC_VER && !defined(__MINGW32__) && !defined(LIGHT)
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my_signal(SIGQUIT, ReceiveSignal);
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my_signal(SIGKILL, ReceiveSignal);
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my_signal(SIGUSR1, ReceiveSignal);
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my_signal(SIGUSR2, ReceiveSignal);
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my_signal(SIGHUP, ReceiveSignal);
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my_signal(SIGALRM, ReceiveSignal);
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my_signal(SIGVTALRM, ReceiveSignal);
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#endif
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#ifdef SIGPIPE
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my_signal(SIGPIPE, ReceiveSignal);
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#endif
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#if _MSC_VER || defined(__MINGW32__)
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signal(SIGINT, SIG_IGN);
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SetConsoleCtrlHandler(MSCHandleSignal, TRUE);
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#else
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my_signal(SIGINT, ReceiveSignal);
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#endif
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#ifdef HAVE_SIGFPE
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my_signal(SIGFPE, HandleMatherr);
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#endif
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#if HAVE_SIGSEGV
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my_signal_info(SIGSEGV, HandleSIGSEGV);
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#endif
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#ifdef YAPOR_COW
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signal(SIGCHLD, SIG_IGN); /* avoid ghosts */
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#endif
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}
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}
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#endif /* HAVE_SIGNAL */
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/* wrapper for alarm system call */
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#if _MSC_VER || defined(__MINGW32__)
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@ -877,6 +752,126 @@ void rw_lock_voodoo(void) {
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#endif /* YAPOR || THREADS */
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yap_error_number Yap_MathException__(USES_REGS1) {
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#if HAVE_FETESTEXCEPT
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int raised;
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// #pragma STDC FENV_ACCESS ON
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if ((raised = fetestexcept(FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW))) {
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feclearexcept(FE_ALL_EXCEPT);
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if (raised & FE_OVERFLOW) {
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return EVALUATION_ERROR_FLOAT_OVERFLOW;
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} else if (raised & FE_DIVBYZERO) {
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return EVALUATION_ERROR_ZERO_DIVISOR;
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} else if (raised & FE_UNDERFLOW) {
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return EVALUATION_ERROR_FLOAT_UNDERFLOW;
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//} else if (raised & (FE_INVALID|FE_INEXACT)) {
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// return EVALUATION_ERROR_UNDEFINED;
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} else {
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return EVALUATION_ERROR_UNDEFINED;
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}
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}
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#elif _WIN32
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unsigned int raised;
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int err;
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// Show original FP control word and do calculation.
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err = _controlfp_s(&raised, 0, 0);
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if (err) {
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return EVALUATION_ERROR_UNDEFINED;
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}
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if (raised) {
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feclearexcept(FE_ALL_EXCEPT);
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if (raised & FE_OVERFLOW) {
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return EVALUATION_ERROR_FLOAT_OVERFLOW;
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} else if (raised & FE_DIVBYZERO) {
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return EVALUATION_ERROR_ZERO_DIVISOR;
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} else if (raised & FE_UNDERFLOW) {
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return EVALUATION_ERROR_FLOAT_UNDERFLOW;
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//} else if (raised & (FE_INVALID|FE_INEXACT)) {
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// return EVALUATION_ERROR_UNDEFINED;
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} else {
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return EVALUATION_ERROR_UNDEFINED;
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}
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}
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#elif (defined(__svr4__) || defined(__SVR4))
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switch (sip->si_code) {
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case FPE_INTDIV:
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return EVALUATION_ERROR_ZERO_DIVISOR;
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break;
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case FPE_INTOVF:
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return EVALUATION_ERROR_INT_OVERFLOW;
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break;
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case FPE_FLTDIV:
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return EVALUATION_ERROR_ZERO_DIVISOR;
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break;
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case FPE_FLTOVF:
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return EVALUATION_ERROR_FLOAT_OVERFLOW;
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break;
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case FPE_FLTUND:
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return EVALUATION_ERROR_FLOAT_UNDERFLOW;
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break;
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case FPE_FLTRES:
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case FPE_FLTINV:
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case FPE_FLTSUB:
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default:
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return EVALUATION_ERROR_UNDEFINED;
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}
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set_fpu_exceptions(0);
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#endif
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return LOCAL_matherror;
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}
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static Int fpe_error(USES_REGS1) {
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Yap_Error(LOCAL_matherror, LOCAL_mathtt, LOCAL_mathstring);
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LOCAL_matherror = YAP_NO_ERROR;
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LOCAL_mathtt = TermNil;
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LOCAL_mathstring = NULL;
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return FALSE;
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}
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/* SIGINT can cause problems, if caught before full initialization */
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void Yap_InitOSSignals(int wid) {
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if (GLOBAL_PrologShouldHandleInterrupts) {
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#if !defined(LIGHT) && !_MSC_VER && !defined(__MINGW32__) && !defined(LIGHT)
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my_signal(SIGQUIT, ReceiveSignal);
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my_signal(SIGKILL, ReceiveSignal);
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my_signal(SIGUSR1, ReceiveSignal);
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my_signal(SIGUSR2, ReceiveSignal);
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my_signal(SIGHUP, ReceiveSignal);
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my_signal(SIGALRM, ReceiveSignal);
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my_signal(SIGVTALRM, ReceiveSignal);
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#endif
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#ifdef SIGPIPE
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my_signal(SIGPIPE, ReceiveSignal);
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#endif
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#if _MSC_VER || defined(__MINGW32__)
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signal(SIGINT, SIG_IGN);
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SetConsoleCtrlHandler(MSCHandleSignal, TRUE);
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#else
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my_signal(SIGINT, ReceiveSignal);
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#endif
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#ifdef HAVE_SIGFPE
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my_signal(SIGFPE, HandleMatherr);
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#endif
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#if HAVE_SIGSEGV
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my_signal_info(SIGSEGV, HandleSIGSEGV);
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#endif
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#ifdef YAPOR_COW
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signal(SIGCHLD, SIG_IGN); /* avoid ghosts */
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#endif
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}
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}
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bool Yap_set_fpu_exceptions(Term flag) {
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return set_fpu_exceptions(flag);
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}
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void Yap_InitSignalPreds(void) {
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CACHE_REGS
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Term cm = CurrentModule;
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Reference in New Issue
Block a user