X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fruntime.h;h=de83bc86e124a3b75c63237f944d310d944805c0;hb=2aa6e79b681cf29b047ca66215c1544f0fac0067;hp=b97a15f9102316949301c196d22df65014d6bff0;hpb=79cc569a97e444389350ea3f5b1017374fe16bec;p=sbcl.git diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h index b97a15f..de83bc8 100644 --- a/src/runtime/runtime.h +++ b/src/runtime/runtime.h @@ -15,16 +15,22 @@ #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 +/* 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 +40,56 @@ * 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, "%lu ", 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 +#else +#define FSHOW_SIGNAL(args) +#endif /* KLUDGE: These are in theory machine-dependent and OS-dependent, but * in practice the "foo int" definitions work for all the machines @@ -74,12 +128,14 @@ 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; } @@ -115,6 +171,21 @@ is_lisp_pointer(lispobj obj) return obj & 1; } +#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 * C/assembly) pointer to the beginning of the object. */ static inline lispobj * @@ -122,31 +193,86 @@ 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) +static inline lispobj +make_fixnum(long n) +{ + return n << N_FIXNUM_TAG_BITS; +} -/* Too bad ANSI C doesn't define "bool" as C++ does.. */ +static inline long +fixnum_value(lispobj n) +{ + return n >> N_FIXNUM_TAG_BITS; +} + +#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) +{ + switch (lowtag_of(header)) { + case OTHER_IMMEDIATE_0_LOWTAG: + case OTHER_IMMEDIATE_1_LOWTAG: +#ifdef OTHER_IMMEDIATE_2_LOWTAG + case OTHER_IMMEDIATE_2_LOWTAG: +#endif +#ifdef OTHER_IMMEDIATE_3_LOWTAG + case OTHER_IMMEDIATE_3_LOWTAG: +#endif + return 1; + default: + return 0; + } +} /* 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 - * in GCC later than version 2.7 or so. If you are using some - * compiler that doesn't understand this, you could could just - * change it to "typedef void never_returns" and nothing would - * break, though you might get a few more bytes of compiled code or - * a few more compiler warnings. -- WHN 2000-10-21 */ -typedef volatile void never_returns; + * in GCC later than version 2.5 or so. */ +#if defined(__GNUC__) +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5) +#define never_returns __attribute__ ((noreturn)) +#else +#define never_returns +#endif +#else +#define never_returns +#endif + +extern void *successful_malloc (size_t size); +extern char *copied_string (char *string); + +#define RUNTIME_OPTIONS_MAGIC 0x31EBF355 +/* 1 for magic, 1 for boolean, 2 for struct runtime_options fields */ +#define RUNTIME_OPTIONS_WORDS (1 + 1 + 2) + +struct runtime_options { + size_t dynamic_space_size; + size_t thread_control_stack_size; +}; + +/* saved runtime path computed from argv[0] */ +extern char *saved_runtime_path; #endif /* _SBCL_RUNTIME_H_ */