struct roots {
ptr_t r_start;
ptr_t r_end;
- # if !defined(MSWIN32) && !defined(MSWINCE)
+ # if !defined(MSWIN32) && !defined(MSWINCE) && !defined(CYGWIN32)
struct roots * r_next;
# endif
GC_bool r_tmp;
return(FALSE);
}
-#if !defined(MSWIN32) && !defined(MSWINCE)
+#if !defined(MSWIN32) && !defined(MSWINCE) && !defined(CYGWIN32)
/*
# define LOG_RT_SIZE 6
# define RT_SIZE (1 << LOG_RT_SIZE) -- Power of 2, may be != MAX_ROOT_SETS
GC_root_index[h] = p;
}
-# else /* MSWIN32 || MSWINCE */
+# else /* MSWIN32 || MSWINCE || CYGWIN32 */
# define add_roots_to_index(p)
{
struct roots * old;
-# if defined(MSWIN32) || defined(MSWINCE)
+# if defined(MSWIN32) || defined(MSWINCE) || defined(CYGWIN32)
/* Spend the time to ensure that there are no overlapping */
/* or adjacent intervals. */
/* This could be done faster with e.g. a */
GC_static_roots[n_root_sets].r_start = (ptr_t)b;
GC_static_roots[n_root_sets].r_end = (ptr_t)e;
GC_static_roots[n_root_sets].r_tmp = tmp;
-# if !defined(MSWIN32) && !defined(MSWINCE)
+# if !defined(MSWIN32) && !defined(MSWINCE) && !defined(CYGWIN32)
GC_static_roots[n_root_sets].r_next = 0;
# endif
add_roots_to_index(GC_static_roots + n_root_sets);
roots_were_cleared = TRUE;
n_root_sets = 0;
GC_root_size = 0;
-# if !defined(MSWIN32) && !defined(MSWINCE)
+# if !defined(MSWIN32) && !defined(MSWINCE) && !defined(CYGWIN32)
{
register int i;
n_root_sets--;
}
-#if !defined(MSWIN32) && !defined(MSWINCE)
+#if !defined(MSWIN32) && !defined(MSWINCE) && !defined(CYGWIN32)
static void GC_rebuild_root_index()
{
register int i;
i++;
}
}
- #if !defined(MSWIN32) && !defined(MSWINCE)
+ #if !defined(MSWIN32) && !defined(MSWINCE) && !defined(CYGWIN32)
GC_rebuild_root_index();
#endif
}
-#if !defined(MSWIN32) && !defined(MSWINCE)
+#if !defined(MSWIN32) && !defined(MSWINCE) && !defined(CYGWIN32)
void GC_remove_roots(b, e)
char * b; char * e;
{
}
GC_rebuild_root_index();
}
-#endif /* !defined(MSWIN32) && !defined(MSWINCE) */
+#endif /* !defined(MSWIN32) && !defined(MSWINCE) && !defined(CYGWIN32) */
-#if defined(MSWIN32) || defined(_WIN32_WCE_EMULATION)
+#if defined(MSWIN32) || defined(_WIN32_WCE_EMULATION) || defined(CYGWIN32)
/* Workaround for the OS mapping and unmapping behind our back: */
/* Is the address p in one of the temporary static root sections? */
GC_bool GC_is_tmp_root(p)
}
return(FALSE);
}
-#endif /* MSWIN32 || _WIN32_WCE_EMULATION */
+#endif /* MSWIN32 || _WIN32_WCE_EMULATION || defined(CYGWIN32) */
ptr_t GC_approx_sp()
{
- word dummy;
+ VOLATILE word dummy;
+ dummy = 42; /* Force stack to grow if necessary. Otherwise the */
+ /* later accesses might cause the kernel to think we're */
+ /* doing something wrong. */
# ifdef _MSC_VER
# pragma warning(disable:4172)
# endif
- return((ptr_t)(&dummy));
+#ifdef __GNUC__
+ /* Eliminate a warning from GCC about taking the address of a
+ local variable. */
+ return __builtin_frame_address (0);
+#else
+ return ((ptr_t)(&dummy));
+#endif /* __GNUC__ */
# ifdef _MSC_VER
# pragma warning(default:4172)
# endif
void GC_cond_register_dynamic_libraries()
{
# if (defined(DYNAMIC_LOADING) || defined(MSWIN32) || defined(MSWINCE) \
- || defined(PCR)) && !defined(SRC_M3)
+ || defined(CYGWIN32) || defined(PCR)) && !defined(SRC_M3)
GC_remove_tmp_roots();
if (!GC_no_dls) GC_register_dynamic_libraries();
# else