X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fruntime.h;h=c46726139f60d0d6d51076315ee4f00c37506084;hb=c712f88b26cd7547ee984b90e18c134401335bc3;hp=3c29b270b8b8d5de26925e38cd4a3fbca6c965e6;hpb=358f2170e7248965420b2b7f0d42352918c2bb1e;p=sbcl.git diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h index 3c29b27..c467261 100644 --- a/src/runtime/runtime.h +++ b/src/runtime/runtime.h @@ -15,6 +15,17 @@ #ifndef _SBCL_RUNTIME_H_ #define _SBCL_RUNTIME_H_ +#if defined(LISP_FEATURE_WIN32) && defined(LISP_FEATURE_SB_THREAD) +# include "pthreads_win32.h" +#else +# include +# ifdef LISP_FEATURE_SB_THREAD +# include +# endif +#endif + +#include + #if defined(LISP_FEATURE_SB_THREAD) #define thread_self() pthread_self() #define thread_kill pthread_kill @@ -29,8 +40,28 @@ #define thread_mutex_unlock(l) 0 #endif -/* Block blockable interrupts for each SHOW, if not 0. */ +#if defined(LISP_FEATURE_WIN32) && defined(LISP_FEATURE_SB_THREAD) +void os_preinit(); +#endif + +#if defined(LISP_FEATURE_SB_SAFEPOINT) +void map_gc_page(); +void unmap_gc_page(); +int check_pending_interrupts(); +#endif + +/* + * The next few defines serve as configuration -- edit them inline if + * you are a developer and want to affect FSHOW behaviour. + */ + +/* Block blockable interrupts for each SHOW, if not 0. + * (On Windows, this setting has no effect.) + * + * In principle, this is a "configuration option", but I am not aware of + * any reason why or when it would be advantageous to disable it. */ #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 @@ -40,55 +71,106 @@ * 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. */ -#define QSHOW_SIGNALS 0 + * problem. + * + * Possible values are: + * 0 -- Never show signal-related output. There is absolutely no + * run-time overhead from FSHOW_SIGNAL in this case. + * + * 1 -- (recommended) + * Show signal-related output only if selected at run-time + * (otherwise almost no run-time overhead). + * + * 2 -- Unconditionally show signal-related output. + * Very significant overhead. + * + * For reasons of tradition, we default to 0 on POSIX and 1 on Windows + * through :SB-QSHOW. + * + * With option 1, set up environment variable SBCL_DYNDEBUG to include + * "fshow" or "fshow_signal" before starting SBCL to enable output. + * + * There is no particular advantage to option 2 except that you do not + * need to set environment variables in this case. + */ +#ifdef LISP_FEATURE_SB_QSHOW +# define QSHOW_SIGNALS 1 +#else +# define QSHOW_SIGNALS 0 +#endif + /* Enable low-level debugging output, if not zero. Defaults to enabled - * if QSHOW_SIGNALS, disabled otherwise. Change it to 1 if you want + * if QSHOW_SIGNALS, disabled otherwise. Change it to 1 or 2 if you want * low-level debugging output but not the whole signal mess. */ #define QSHOW QSHOW_SIGNALS -#if QSHOW +/* + * Configuration options end here -- the following defines do not + * generally need customization. + */ + +#define odxprint(topic, fmt, ...) \ + do \ + if (dyndebug_config.dyndebug_##topic) \ + odxprint_fun(fmt "\n", ##__VA_ARGS__); \ + while (0) + +void odxprint_fun(const char *fmt, ...); +void fshow_fun(void *ignored, const char *fmt, ...); + +/* Flags defined in a structure to avoid code duplication between + * declaration and definition. */ +extern struct dyndebug_config { + int dyndebug_fshow; + int dyndebug_fshow_signal; + int dyndebug_gencgc_verbose; + int dyndebug_safepoints; + int dyndebug_seh; + int dyndebug_misc; + int dyndebug_pagefaults; + int dyndebug_backtrace_when_lost; + int dyndebug_sleep_when_lost; +} dyndebug_config; + +#ifdef LISP_FEATURE_GENCGC +extern int gencgc_verbose; +#endif + +void dyndebug_init(void); #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); + 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)) +/* The following macros duplicate the expansion of odxprint, because the + * extra level of parentheses around `args' prevents us from + * implementing FSHOW in terms of odxprint directly. (They also differ + * in a newline.) + */ +#if QSHOW +# define FSHOW(args) \ + do if (dyndebug_config.dyndebug_fshow) fshow_fun args; while (0) +# define SHOW(string) FSHOW((stderr, "/%s\n", string)) #else - -#define FSHOW(args) -#define SHOW(string) - +# define FSHOW(args) +# define SHOW(string) #endif #if QSHOW_SIGNALS -#define FSHOW_SIGNAL FSHOW +# define FSHOW_SIGNAL(args) \ + do if (dyndebug_config.dyndebug_fshow_signal) fshow_fun args; while (0) #else -#define FSHOW_SIGNAL(args) +# define FSHOW_SIGNAL(args) #endif /* KLUDGE: These are in theory machine-dependent and OS-dependent, but @@ -110,7 +192,6 @@ typedef unsigned long pointer_sized_uint_t ; #include #if defined(LISP_FEATURE_SB_THREAD) -#include typedef pthread_t os_thread_t; #else typedef pid_t os_thread_t; @@ -259,4 +340,22 @@ other_immediate_lowtag_p(lispobj header) 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 + +/* Now that SPARC has precise GENCGC, several places that used to be + * #ifdef PCC need adjustment. Clearly, "PPC or SPARC" is as unhelpful + * a test as its reverse, "x86 or x86-64". However, the feature + * commonly used to differentiate between those two worlds is + * C_STACK_IS_CONTROL_STACK, and clearly (or at least in my humble + * opinion), at some point we'd like to have precise GC on x86 while + * still sharing the C stack, so stack usage ought not imply GC + * conservativeness. So let's have a helper feature that makes the code + * a bit more future-proof, even if it is itself currently defined in + * the naive way: */ +#if defined(LISP_FEATURE_GENCGC) && !defined(LISP_FEATURE_C_STACK_IS_CONTROL_STACK) +# define GENCGC_IS_PRECISE 1 +#endif + #endif /* _SBCL_RUNTIME_H_ */