X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fruntime.h;h=e99d86b22ee5cb5cc90d1f913bb36f828e80362e;hb=0285aa5ff8416027932daa001b84429be2ca559b;hp=2fce3fd792a96a467285eddff3dcc335bce4ae57;hpb=3d2165e67f9ad1443f6e7d8ad24810000b0436e8;p=sbcl.git diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h index 2fce3fd..e99d86b 100644 --- a/src/runtime/runtime.h +++ b/src/runtime/runtime.h @@ -15,16 +15,28 @@ #ifndef _SBCL_RUNTIME_H_ #define _SBCL_RUNTIME_H_ -/*#define QSHOW */ /* Enable low-level debugging output? */ - -#ifdef QSHOW -#define FSHOW(args) fprintf args -#define SHOW(string) FSHOW((stderr, "/%s\n", string)) +#if defined(LISP_FEATURE_SB_THREAD) +#define thread_self() pthread_self() +#define thread_kill pthread_kill +#define thread_sigmask pthread_sigmask +#define thread_mutex_lock(l) pthread_mutex_lock(l) +#define thread_mutex_unlock(l) pthread_mutex_unlock(l) #else -#define FSHOW(args) -#define SHOW(string) +#define thread_self() 0 +#define thread_kill kill_safely +#define thread_sigmask sigprocmask +#define thread_mutex_lock(l) 0 +#define thread_mutex_unlock(l) 0 +#endif + +#if defined(LISP_FEATURE_SB_SAFEPOINT) +void map_gc_page(); +void unmap_gc_page(); +int check_pending_interrupts(); #endif +/* Block blockable interrupts for each SHOW, if not 0. */ +#define QSHOW_SIGNAL_SAFE 1 /* Enable extra-verbose low-level debugging output for signals? (You * probably don't want this unless you're trying to debug very early * cold boot on a new machine, or one where you've just messed up @@ -34,8 +46,50 @@ * causes output from signal handlers, and the i/o libraries aren't * necessarily reentrant. But it can still be very convenient for * figuring out what's going on when you have a signal handling - * problem.. */ + * problem. */ #define QSHOW_SIGNALS 0 +/* Enable low-level debugging output, if not zero. Defaults to enabled + * if QSHOW_SIGNALS, disabled otherwise. Change it to 1 if you want + * low-level debugging output but not the whole signal mess. */ +#define QSHOW QSHOW_SIGNALS + +#if QSHOW + +#if QSHOW_SIGNAL_SAFE == 1 && !defined(LISP_FEATURE_WIN32) + +#include +extern sigset_t blockable_sigset; + +#define QSHOW_BLOCK \ + sigset_t oldset; \ + thread_sigmask(SIG_BLOCK, &blockable_sigset, &oldset); +#define QSHOW_UNBLOCK thread_sigmask(SIG_SETMASK,&oldset,0); +#else +#define QSHOW_BLOCK +#define QSHOW_UNBLOCK +#endif + +#ifdef LISP_FEATURE_SB_THREAD +#define QSHOW_PREFIX fprintf(stderr, "%p ", pthread_self()); +#else +#define QSHOW_PREFIX +#endif + +#define FSHOW(args) \ + do { \ + QSHOW_BLOCK \ + QSHOW_PREFIX \ + fprintf args; \ + QSHOW_UNBLOCK \ + } while (0) +#define SHOW(string) FSHOW((stderr, "/%s\n", string)) + +#else + +#define FSHOW(args) +#define SHOW(string) + +#endif #if QSHOW_SIGNALS #define FSHOW_SIGNAL FSHOW @@ -72,20 +126,24 @@ typedef pid_t os_thread_t; alpha64 has arrived, all this nastiness can go away */ #if 64 == N_WORD_BITS #define LOW_WORD(c) ((pointer_sized_uint_t)c) +#define OBJ_FMTX "lx" typedef unsigned long lispobj; #else +#define OBJ_FMTX "x" #define LOW_WORD(c) ((long)(c) & 0xFFFFFFFFL) /* fake it on alpha32 */ typedef unsigned int lispobj; #endif static inline int -lowtag_of(lispobj obj) { +lowtag_of(lispobj obj) +{ return obj & LOWTAG_MASK; } static inline int -widetag_of(lispobj obj) { +widetag_of(lispobj obj) +{ return obj & WIDETAG_MASK; } @@ -118,7 +176,26 @@ FDEFN(lispobj obj) static inline int is_lisp_pointer(lispobj obj) { +#if N_WORD_BITS == 64 + return (obj & 3) == 3; +#else return obj & 1; +#endif +} + +#include "fixnump.h" + +/* Is the Lisp object obj something with immediate nature (e.g. a + * fixnum or character or unbound marker)? */ +static inline int +is_lisp_immediate(lispobj obj) +{ + return (fixnump(obj) + || (widetag_of(obj) == CHARACTER_WIDETAG) +#if N_WORD_BITS == 64 + || (widetag_of(obj) == SINGLE_FLOAT_WIDETAG) +#endif + || (widetag_of(obj) == UNBOUND_MARKER_WIDETAG)); } /* Convert from a lispobj with type bits to a native (ordinary @@ -128,23 +205,49 @@ native_pointer(lispobj obj) { return (lispobj *) ((pointer_sized_uint_t) (obj & ~LOWTAG_MASK)); } + /* inverse operation: create a suitably tagged lispobj from a native - * pointer or integer. Needs to be a macro due to the tedious C type - * system */ -#define make_lispobj(o,low_tag) ((lispobj)(LOW_WORD(o)|low_tag)) + * pointer or integer.*/ +static inline lispobj +make_lispobj(void *o, int low_tag) +{ + return LOW_WORD(o) | low_tag; +} -/* FIXME: There seems to be no reason that make_fixnum and fixnum_value - * can't be implemented as (possibly inline) functions. */ -#define make_fixnum(n) ((lispobj)((n)<>N_FIXNUM_TAG_BITS) +#define MAKE_FIXNUM(n) (n << N_FIXNUM_TAG_BITS) +static inline lispobj +make_fixnum(long n) +{ + return MAKE_FIXNUM(n); +} + +static inline long +fixnum_value(lispobj n) +{ + return n >> N_FIXNUM_TAG_BITS; +} -/* Too bad ANSI C doesn't define "bool" as C++ does.. */ +#if defined(LISP_FEATURE_WIN32) +/* KLUDGE: Avoid double definition of boolean by rpcndr.h included via + * shlobj.h. + * + * FIXME: We should probably arrange to use the rpcndr.h boolean on Windows, + * or get rid of our own boolean type. If the boolean type is only used in + * the runtime, and never passed to Lisp, then it doesn't matter which one + * we use. + */ +#define boolean rpcndr_boolean +#include +#undef boolean +#endif typedef int boolean; -/* This only works for static symbols. */ -/* FIXME: should be called StaticSymbolFunction, right? */ -#define SymbolFunction(sym) \ - (((struct fdefn *)(native_pointer(SymbolValue(sym,0))))->fun) +static inline boolean +other_immediate_lowtag_p(lispobj header) +{ + /* These lowtags are spaced 4 apart throughout the lowtag space. */ + return (lowtag_of(header) & 3) == OTHER_IMMEDIATE_0_LOWTAG; +} /* KLUDGE: As far as I can tell there's no ANSI C way of saying * "this function never returns". This is the way that you do it @@ -162,4 +265,8 @@ typedef int boolean; extern void *successful_malloc (size_t size); extern char *copied_string (char *string); +#if defined(LISP_FEATURE_SB_THREAD) && !defined(LISP_FEATURE_SB_SAFEPOINT) +# define THREADS_USING_GCSIGNAL 1 +#endif + #endif /* _SBCL_RUNTIME_H_ */