diff options
Diffstat (limited to 'include/private/gc_priv.h')
| -rw-r--r-- | include/private/gc_priv.h | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/include/private/gc_priv.h b/include/private/gc_priv.h index 5135e3e9..ad204e99 100644 --- a/include/private/gc_priv.h +++ b/include/private/gc_priv.h @@ -443,18 +443,21 @@ struct hblk; /* See below. */ /* clear on that point). Standard malloc implementations are usually */ /* neither interruptable nor thread-safe, and thus correspond to */ /* empty definitions. */ +/* It probably doesn't make any sense to declare these to be nonempty */ +/* if the code is being optimized, since signal safety relies on some */ +/* ordering constraints that are typically not obeyed by optimizing */ +/* compilers. */ # ifdef PCR # define DISABLE_SIGNALS() \ PCR_Th_SetSigMask(PCR_allSigsBlocked,&GC_old_sig_mask) # define ENABLE_SIGNALS() \ PCR_Th_SetSigMask(&GC_old_sig_mask, NIL) # else -# if defined(SRC_M3) || defined(AMIGA) || defined(SOLARIS_THREADS) \ +# if defined(THREADS) || defined(AMIGA) \ || defined(MSWIN32) || defined(MSWINCE) || defined(MACOS) \ - || defined(DJGPP) || defined(NO_SIGNALS) || defined(IRIX_THREADS) \ - || defined(LINUX_THREADS) + || defined(DJGPP) || defined(NO_SIGNALS) /* Also useful for debugging. */ - /* Should probably use thr_sigsetmask for SOLARIS_THREADS. */ + /* Should probably use thr_sigsetmask for GC_SOLARIS_THREADS. */ # define DISABLE_SIGNALS() # define ENABLE_SIGNALS() # else @@ -479,9 +482,8 @@ struct hblk; /* See below. */ PCR_allSigsBlocked, \ PCR_waitForever); # else -# if defined(SOLARIS_THREADS) || defined(WIN32_THREADS) \ - || defined(IRIX_THREADS) || defined(LINUX_THREADS) \ - || defined(HPUX_THREADS) +# if defined(GC_SOLARIS_THREADS) || defined(GC_WIN32_THREADS) \ + || defined(GC_PTHREADS) void GC_stop_world(); void GC_start_world(); # define STOP_WORLD() GC_stop_world() @@ -566,7 +568,8 @@ extern GC_warn_proc GC_current_warn_proc; # ifdef SMALL_CONFIG # define CPP_LOG_HBLKSIZE 10 # else -# if CPP_WORDSZ == 32 +# if (CPP_WORDSZ == 32) || (defined(HPUX) && defined(HP_PA)) + /* HPUX/PA seems to use 4K pages with the 64 bit ABI */ # define CPP_LOG_HBLKSIZE 12 # else # define CPP_LOG_HBLKSIZE 13 @@ -1903,8 +1906,7 @@ void GC_err_puts GC_PROTO((GC_CONST char *s)); /* some other reason. */ # endif /* PARALLEL_MARK */ -# if defined(LINUX_THREADS) || defined(IRIX_THREADS) \ - || defined(HPUX_THREADS) || defined(OSF1_THREADS) +# if defined(GC_PTHREADS) && !defined(GC_SOLARIS_THREADS) /* We define the thread suspension signal here, so that we can refer */ /* to it in the dirty bit implementation, if necessary. Ideally we */ /* would allocate a (real-time ?) signal using the standard mechanism.*/ @@ -1912,16 +1914,16 @@ void GC_err_puts GC_PROTO((GC_CONST char *s)); /* in Linux glibc, but it's not exported.) Thus we continue to use */ /* the same hard-coded signals we've always used. */ # if !defined(SIG_SUSPEND) -# if defined(LINUX_THREADS) +# if defined(GC_LINUX_THREADS) # if defined(SPARC) && !defined(SIGPWR) /* SPARC/Linux doesn't properly define SIGPWR in <signal.h>. * It is aliased to SIGLOST in asm/signal.h, though. */ # define SIG_SUSPEND SIGLOST # else - /* Linuxthreads uses SIGUSR1 and SIGUSR2. */ + /* Linuxthreads itself uses SIGUSR1 and SIGUSR2. */ # define SIG_SUSPEND SIGPWR # endif -# else /* !LINUX_THREADS */ +# else /* !GC_LINUX_THREADS */ # define SIG_SUSPEND _SIGRTMIN + 6 # endif # endif /* !SIG_SUSPEND */ |